Merge turtle2d in it's subdifrectory for later relocation

43 files changed, 5834 insertions, 0 deletions

diff --git a/turtle2d/src/jogamp/graph/curve/opengl/RegionRendererImpl01.java b/turtle2d/src/jogamp/graph/curve/opengl/RegionRendererImpl01.java
new file mode 100755
index 000000000..c1f293fff
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/RegionRendererImpl01.java
@@ -0,0 +1,206 @@
+/**

+ * Copyright 2010 JogAmp Community. All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without modification, are

+ * permitted provided that the following conditions are met:

+ *

+ *    1. Redistributions of source code must retain the above copyright notice, this list of

+ *       conditions and the following disclaimer.

+ *

+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list

+ *       of conditions and the following disclaimer in the documentation and/or other materials

+ *       provided with the distribution.

+ *

+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED

+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR

+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ *

+ * The views and conclusions contained in the software and documentation are those of the

+ * authors and should not be interpreted as representing official policies, either expressed

+ * or implied, of JogAmp Community.

+ */

+package jogamp.graph.curve.opengl;

+

+import java.nio.FloatBuffer;

+import javax.media.opengl.GL2ES2;

+import javax.media.opengl.GLException;

+import javax.media.opengl.GLUniformData;

+import javax.media.opengl.fixedfunc.GLMatrixFunc;

+

+import com.jogamp.graph.curve.OutlineShape;

+import com.jogamp.graph.curve.Region;

+import com.jogamp.graph.curve.opengl.RegionRenderer;

+import com.jogamp.graph.geom.Vertex;

+import com.jogamp.opengl.util.glsl.ShaderCode;

+import com.jogamp.opengl.util.glsl.ShaderProgram;

+import com.jogamp.opengl.util.glsl.ShaderState;

+

+

+public class RegionRendererImpl01 extends RegionRenderer {

+	/**Sharpness is equivalent to the value of t value of texture coord

+	 * on the off-curve vertex. The high value of sharpness will 

+	 * result in high curvature.

+	 */

+    private GLUniformData mgl_sharpness = new GLUniformData("p1y", 0.5f);

+    GLUniformData mgl_alpha = new GLUniformData("g_alpha", 1.0f);

+    private GLUniformData mgl_color = new GLUniformData("g_color", 3, FloatBuffer.allocate(3));

+    private GLUniformData mgl_strength = new GLUniformData("a_strength", 3.0f);

+    

+    public RegionRendererImpl01(Vertex.Factory<? extends Vertex> factory, int type) {

+        super(factory, type);

+    }

+    

+    protected boolean initImpl(GL2ES2 gl) {

+        boolean VBOsupported = gl.isFunctionAvailable("glGenBuffers") &&

+            gl.isFunctionAvailable("glBindBuffer") &&

+            gl.isFunctionAvailable("glBufferData") &&

+            gl.isFunctionAvailable("glDrawElements") &&

+            gl.isFunctionAvailable("glVertexAttribPointer") &&

+            gl.isFunctionAvailable("glDeleteBuffers");

+        

+        if(DEBUG) {

+            System.err.println("RegionRenderer: VBO Supported = " + VBOsupported);

+        }

+        

+        if(!VBOsupported){

+            return false;

+        }

+        

+        gl.glEnable(GL2ES2.GL_BLEND);

+        gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);

+        

+        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, RegionRendererImpl01.class,

+                "shader", "shader/bin", "curverenderer01");

+        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, RegionRendererImpl01.class,

+                "shader", "shader/bin", "curverenderer01");

+    

+        ShaderProgram sp = new ShaderProgram();

+        sp.add(rsVp);

+        sp.add(rsFp);

+    

+        if(!sp.link(gl, System.err)) {

+            throw new GLException("RegionRenderer: Couldn't link program: "+sp);

+        }

+    

+        st = new ShaderState();

+        st.attachShaderProgram(gl, sp);

+        gl.glBindAttribLocation(sp.id(), 0, "v_position");

+        gl.glBindAttribLocation(sp.id(), 1, "texCoord");

+        

+        st.glUseProgram(gl, true);

+    

+        pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);

+        pmvMatrix.glLoadIdentity();

+        pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);

+        pmvMatrix.glLoadIdentity();

+        

+        pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);

+        pmvMatrix.glLoadIdentity();

+        resetModelview(null);

+    

+        mgl_PMVMatrix = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf());                  

+        if(!st.glUniform(gl, mgl_PMVMatrix)) {

+            if(DEBUG){

+                System.err.println("Error setting PMVMatrix in shader: "+st);

+            }

+            return false;

+        }

+        

+        if(!st.glUniform(gl, mgl_sharpness)) {

+            if(DEBUG){

+                System.err.println("Error setting sharpness in shader: "+st);

+            }

+            return false;

+        }

+                

+        if(!st.glUniform(gl, mgl_alpha)) {

+            if(DEBUG){

+                System.err.println("Error setting global alpha in shader: "+st);

+            }

+            return false;

+        }       

+        

+        if(!st.glUniform(gl, mgl_color)) {

+            if(DEBUG){

+                System.err.println("Error setting global color in shader: "+st);

+            }

+            return false;

+        }       

+        

+        if(!st.glUniform(gl, mgl_strength)) {

+            System.err.println("Error setting antialias strength in shader: "+st);

+        }

+        

+        if(DEBUG) {

+            System.err.println("RegionRendererImpl01 initialized: " + Thread.currentThread()+" "+st);

+        }

+        return true;

+    }

+

+    @Override

+    protected void disposeImpl(GL2ES2 gl) {

+    }

+    

+    

+    @Override

+    public float getAlpha() {

+        return mgl_alpha.floatValue();

+    }

+

+    @Override

+    public void setAlpha(GL2ES2 gl, float alpha_t) {

+        mgl_alpha.setData(alpha_t);

+        if(null != gl && st.inUse()) {

+            st.glUniform(gl, mgl_alpha);

+        }

+    }

+    

+    @Override

+    public void setColor(GL2ES2 gl, float r, float g, float b){

+        FloatBuffer fb = (FloatBuffer) mgl_color.getBuffer();

+        fb.put(0, r);

+        fb.put(1, r);

+        fb.put(2, r);

+        if(null != gl && st.inUse()) {

+            st.glUniform(gl, mgl_color);

+        }

+    }

+    

+	

+	@Override

+    public void renderOutlineShape(GL2ES2 gl, OutlineShape outlineShape, float[] position, int texSize) {

+		if(!isInitialized()){

+			throw new GLException("RegionRendererImpl01: not initialized!");

+		}

+		int hashCode = getHashCode(outlineShape);

+		Region region = regions.get(hashCode);

+		

+		if(null == region) {

+			region = createRegion(gl, outlineShape, mgl_sharpness.floatValue());

+			regions.put(hashCode, region);

+		}		

+		region.render(pmvMatrix, vp_width, vp_height, texSize);

+	}

+	

+	@Override

+    public void renderOutlineShapes(GL2ES2 gl, OutlineShape[] outlineShapes, float[] position, int texSize) {

+        if(!isInitialized()){

+            throw new GLException("RegionRendererImpl01: not initialized!");

+        }

+		

+		int hashCode = getHashCode(outlineShapes);

+		Region region = regions.get(hashCode);

+		

+		if(null == region) {

+            region = createRegion(gl, outlineShapes, mgl_sharpness.floatValue());

+			regions.put(hashCode, region);

+		}		

+        region.render(pmvMatrix, vp_width, vp_height, texSize);

+	}	

+}

diff --git a/turtle2d/src/jogamp/graph/curve/opengl/TextRendererImpl01.java b/turtle2d/src/jogamp/graph/curve/opengl/TextRendererImpl01.java
new file mode 100644
index 000000000..cebe7a19e
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/TextRendererImpl01.java
@@ -0,0 +1,188 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.opengl;
+
+import java.nio.FloatBuffer;
+
+import javax.media.opengl.GL2ES2;
+import javax.media.opengl.GLException;
+import javax.media.opengl.GLUniformData;
+import javax.media.opengl.fixedfunc.GLMatrixFunc;
+
+import jogamp.graph.curve.text.GlyphString;
+
+import com.jogamp.graph.curve.opengl.TextRenderer;
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.opengl.util.glsl.ShaderCode;
+import com.jogamp.opengl.util.glsl.ShaderProgram;
+
+public class TextRendererImpl01 extends TextRenderer {    
+	/**Sharpness is equivalent to the value of t value of texture coord
+	 * on the off-curve vertex. The high value of sharpness will 
+	 * result in high curvature.
+	 */
+    private GLUniformData mgl_sharpness = new GLUniformData("p1y", 0.5f);
+    GLUniformData mgl_alpha = new GLUniformData("g_alpha", 1.0f);
+    private GLUniformData mgl_color = new GLUniformData("g_color", 3, FloatBuffer.allocate(3));
+    private GLUniformData mgl_strength = new GLUniformData("a_strength", 1.8f);
+    	
+	public TextRendererImpl01(Vertex.Factory<? extends Vertex> factory, int type) {
+	    super(factory, type);
+	}
+
+	@Override
+    protected boolean initImpl(GL2ES2 gl){
+		boolean VBOsupported = gl.isFunctionAvailable("glGenBuffers") &&
+			gl.isFunctionAvailable("glBindBuffer") &&
+			gl.isFunctionAvailable("glBufferData") &&
+			gl.isFunctionAvailable("glDrawElements") &&
+			gl.isFunctionAvailable("glVertexAttribPointer") &&
+			gl.isFunctionAvailable("glDeleteBuffers");
+		
+		if(DEBUG) {
+			System.err.println("TextRendererImpl01: VBO Supported = " + VBOsupported);
+		}
+		
+		if(!VBOsupported){
+			return false;
+		}
+		
+		gl.glEnable(GL2ES2.GL_BLEND);
+		gl.glBlendFunc(GL2ES2.GL_SRC_ALPHA, GL2ES2.GL_ONE_MINUS_SRC_ALPHA);
+		
+        ShaderCode rsVp = ShaderCode.create(gl, GL2ES2.GL_VERTEX_SHADER, 1, TextRendererImpl01.class,
+                "shader", "shader/bin", "curverenderer01");
+        ShaderCode rsFp = ShaderCode.create(gl, GL2ES2.GL_FRAGMENT_SHADER, 1, TextRendererImpl01.class,
+                "shader", "shader/bin", "curverenderer01");
+
+        ShaderProgram sp = new ShaderProgram();
+        sp.add(rsVp);
+        sp.add(rsFp);
+
+        if(!sp.link(gl, System.err)) {
+            throw new GLException("TextRendererImpl01: Couldn't link program: "+sp);
+        }
+
+        st.attachShaderProgram(gl, sp);
+        gl.glBindAttribLocation(sp.id(), 0, "v_position");
+        gl.glBindAttribLocation(sp.id(), 1, "texCoord");
+		
+		st.glUseProgram(gl, true);
+
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+		pmvMatrix.glLoadIdentity();
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_MODELVIEW);
+		pmvMatrix.glLoadIdentity();
+		
+		pmvMatrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+		pmvMatrix.glLoadIdentity();
+		resetModelview(null);
+		
+		mgl_PMVMatrix = new GLUniformData("mgl_PMVMatrix", 4, 4, pmvMatrix.glGetPMvMatrixf());		    		
+		if(!st.glUniform(gl, mgl_PMVMatrix)) {
+			if(DEBUG){
+				System.err.println("Error setting PMVMatrix in shader: "+st);
+			}
+			return false;
+		}
+		
+		if(!st.glUniform(gl, mgl_sharpness)) {
+			if(DEBUG){
+				System.err.println("Error setting sharpness in shader: "+st);
+			}
+			return false;
+		}
+				
+		if(!st.glUniform(gl, mgl_alpha)) {
+			if(DEBUG){
+				System.err.println("Error setting global alpha in shader: "+st);
+			}
+			return false;
+		}		
+		
+		if(!st.glUniform(gl, mgl_color)) {
+			if(DEBUG){
+				System.err.println("Error setting global color in shader: "+st);
+			}
+			return false;
+		}		
+		
+		if(!st.glUniform(gl, mgl_strength)) {
+			System.err.println("Error setting antialias strength in shader: "+st);
+		}
+		
+		if(DEBUG) {
+			System.err.println("TextRendererImpl01 initialized: " + Thread.currentThread()+" "+st);
+		}
+		return true;
+	}
+	
+	@Override
+    protected void disposeImpl(GL2ES2 gl) {
+	}
+	
+    @Override
+    public float getAlpha() {
+        return mgl_alpha.floatValue();
+    }
+
+    @Override
+    public void setAlpha(GL2ES2 gl, float alpha_t) {
+        mgl_alpha.setData(alpha_t);
+        if(null != gl && st.inUse()) {
+            st.glUniform(gl, mgl_alpha);
+        }
+    }
+	
+	@Override
+    public void setColor(GL2ES2 gl, float r, float g, float b){
+	    FloatBuffer fb = (FloatBuffer) mgl_color.getBuffer();
+	    fb.put(0, r);
+	    fb.put(1, r);
+	    fb.put(2, r);
+	    if(null != gl && st.inUse()) {
+	        st.glUniform(gl, mgl_color);
+	    }
+	}
+	
+	@Override
+    public void renderString3D(GL2ES2 gl, Font font, String str, float[] position, int fontSize, int texSize) {
+		if(!isInitialized()){
+			throw new GLException("TextRendererImpl01: not initialized!");
+		}
+		GlyphString glyphString = getCachedGlyphString(font, str, fontSize);
+		if(null == glyphString) {
+			glyphString = createString(gl, font, fontSize, str, mgl_sharpness.floatValue());
+			addCachedGlyphString(font, str, fontSize, glyphString);
+		}
+		
+		glyphString.renderString3D(pmvMatrix, vp_width, vp_height, texSize);
+	}
+	
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/VBORegion2PES2.java b/turtle2d/src/jogamp/graph/curve/opengl/VBORegion2PES2.java
new file mode 100644
index 000000000..c7c370f6d
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/VBORegion2PES2.java
@@ -0,0 +1,385 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.opengl;
+
+import java.nio.FloatBuffer;
+import java.nio.IntBuffer;
+import java.nio.ShortBuffer;
+import java.util.ArrayList;
+
+import javax.media.opengl.GL2ES2;
+// FIXME: Subsume GL2GL3.GL_DRAW_FRAMEBUFFER -> GL2ES2.GL_DRAW_FRAMEBUFFER ! 
+import javax.media.opengl.GL2GL3;
+import javax.media.opengl.GLContext;
+import javax.media.opengl.GLUniformData;
+import javax.media.opengl.fixedfunc.GLMatrixFunc;
+
+import com.jogamp.common.nio.Buffers;
+
+import com.jogamp.graph.geom.AABBox;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.graph.geom.Vertex;
+
+import com.jogamp.graph.curve.Region;
+import com.jogamp.opengl.util.PMVMatrix;
+import com.jogamp.opengl.util.glsl.ShaderState;
+
+public class VBORegion2PES2  implements Region{
+	private int numVertices = 0;
+	private IntBuffer vboIds;
+	
+	private IntBuffer t_vboIds;
+	
+	private ArrayList<Triangle> triangles = new ArrayList<Triangle>();
+	private ArrayList<Vertex> vertices = new ArrayList<Vertex>();
+	private GLContext context;
+	
+	private int numBuffers = 3;
+	
+	private boolean flipped = false;
+	
+	private boolean dirty = false;
+	
+	private AABBox box = null;
+	private int[] texture = { 0 } ;
+	private int[] fbo = { 0 } ;
+	private int[] rbo_depth = { 0 } ;
+	private boolean texInitialized = false;
+
+	private int tex_width_c = 0;
+	private int tex_height_c = 0;
+	
+	private ShaderState st;
+	
+	public VBORegion2PES2(GLContext context, ShaderState st){
+		this.context =context;
+		this.st = st;
+	}
+	
+	public void update(){
+		box = new AABBox();
+		
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		ShortBuffer indicies = Buffers.newDirectShortBuffer(triangles.size() * 3);
+		
+		for(Triangle t:triangles){
+			if(t.getVertices()[0].getId() == Integer.MAX_VALUE){
+				t.getVertices()[0].setId(numVertices++);
+				t.getVertices()[1].setId(numVertices++);
+				t.getVertices()[2].setId(numVertices++);
+				
+				vertices.add(t.getVertices()[0]);
+				vertices.add(t.getVertices()[1]);
+				vertices.add(t.getVertices()[2]);
+				
+				indicies.put((short) t.getVertices()[0].getId());
+				indicies.put((short) t.getVertices()[1].getId());
+				indicies.put((short) t.getVertices()[2].getId());
+			}
+			else{
+				Vertex v1 = t.getVertices()[0];
+				Vertex v2 = t.getVertices()[1];
+				Vertex v3 = t.getVertices()[2];
+				
+				indicies.put((short) v1.getId());
+				indicies.put((short) v2.getId());
+				indicies.put((short) v3.getId());
+			}
+		}
+		indicies.rewind();
+		
+		FloatBuffer verticesBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 3);
+		for(Vertex v:vertices){
+			verticesBuffer.put(v.getX());
+			if(flipped){
+				verticesBuffer.put(-1*v.getY());
+			}
+			else{
+				verticesBuffer.put(v.getY());
+			}
+			verticesBuffer.put(v.getZ());
+			if(flipped){
+				box.resize(v.getX(), -1*v.getY(), v.getZ());
+			}
+			else{
+				box.resize(v.getX(), v.getY(), v.getZ());
+			}
+		}
+		verticesBuffer.rewind();
+		
+		FloatBuffer texCoordBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 2);
+		for(Vertex v:vertices){
+			float[] tex = v.getTexCoord();
+			texCoordBuffer.put(tex[0]);
+			texCoordBuffer.put(tex[1]);
+		}
+		texCoordBuffer.rewind();
+
+		vboIds = IntBuffer.allocate(numBuffers);
+		gl.glGenBuffers(numBuffers, vboIds);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0)); // vertices
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 3 * Buffers.SIZEOF_FLOAT, verticesBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1)); //texture
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 2 * Buffers.SIZEOF_FLOAT, texCoordBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2)); //triangles
+		gl.glBufferData(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, triangles.size()* 3 * Buffers.SIZEOF_SHORT, indicies, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 0);
+		
+		dirty = false;
+	}
+	
+	public void render(PMVMatrix matrix, int vp_width, int vp_height, int width){
+		if(null == matrix || vp_width <=0 || vp_height <= 0 || width <= 0){
+			renderRegion();
+		}
+		else {
+			if(width != tex_width_c){
+				texInitialized = false;
+				tex_width_c = width;
+			}
+			if(!texInitialized){
+				initFBOTexture(matrix,vp_width, vp_height);
+				texInitialized = true;
+			}
+//			System.out.println("Scale: " + matrix.glGetMatrixf().get(1+4*3) +" " + matrix.glGetMatrixf().get(2+4*3));
+			renderTexture(matrix, vp_width, vp_height);
+		}
+	}
+	
+	private void renderTexture(PMVMatrix matrix, int width, int hight){
+		GL2ES2 gl = context.getGL().getGL2ES2();
+	    gl.glViewport(0, 0, width, hight);
+	    if(!st.glUniform(gl, new GLUniformData("mgl_PMVMatrix", 4, 4, matrix.glGetPMvMatrixf()))){
+	    	System.out.println("Cnt set tex based mat");
+	    }
+	    gl.glEnable(GL2ES2.GL_TEXTURE_2D);
+	    gl.glActiveTexture(GL2ES2.GL_TEXTURE0);
+	    gl.glBindTexture(GL2ES2.GL_TEXTURE_2D, texture[0]);
+	    
+	    st.glUniform(gl, new GLUniformData("texture", texture[0]));
+	    int loc = gl.glGetUniformLocation(st.shaderProgram().id(), "texture");
+	    gl.glUniform1i(loc, 0);
+	    
+	    
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(0));
+		gl.glEnableVertexAttribArray(VERTEX_ATTR_IDX);
+		gl.glVertexAttribPointer(VERTEX_ATTR_IDX, 3, GL2ES2.GL_FLOAT, false, 3 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(1));
+		gl.glEnableVertexAttribArray(TEXCOORD_ATTR_IDX);
+		gl.glVertexAttribPointer(TEXCOORD_ATTR_IDX, 2, GL2ES2.GL_FLOAT, false, 2 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, t_vboIds.get(2));
+		gl.glDrawElements(GL2ES2.GL_TRIANGLES, 2 * 3, GL2ES2.GL_UNSIGNED_SHORT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+	}
+	
+	private void setupBoundingBuffers(){
+	    GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		ShortBuffer indicies = Buffers.newDirectShortBuffer(6);
+		indicies.put((short) 0); indicies.put((short) 1); indicies.put((short) 3);
+		indicies.put((short) 1); indicies.put((short) 2); indicies.put((short) 3);
+		indicies.rewind();
+		
+		FloatBuffer verticesBuffer = Buffers.newDirectFloatBuffer(4 * 3);
+		FloatBuffer texCoordBuffer = Buffers.newDirectFloatBuffer(4 * 2);
+		
+		verticesBuffer.put(box.getLow()[0]);
+		verticesBuffer.put(box.getLow()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		texCoordBuffer.put(5);
+		texCoordBuffer.put(5);
+		
+		verticesBuffer.put(box.getLow()[0]);
+		verticesBuffer.put(box.getHigh()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		
+		texCoordBuffer.put(5);
+		texCoordBuffer.put(6);
+		
+		verticesBuffer.put(box.getHigh()[0]);
+		verticesBuffer.put(box.getHigh()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		
+		texCoordBuffer.put(6);
+		texCoordBuffer.put(6);
+		
+		verticesBuffer.put(box.getHigh()[0]);
+		verticesBuffer.put(box.getLow()[1]);
+		verticesBuffer.put(box.getLow()[2]);
+		
+		texCoordBuffer.put(6);
+		texCoordBuffer.put(5);
+			
+		verticesBuffer.rewind();
+		texCoordBuffer.rewind();
+
+		t_vboIds = IntBuffer.allocate(3);
+		gl.glGenBuffers(numBuffers, t_vboIds);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(0)); // vertices
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, 4 * 3 * Buffers.SIZEOF_FLOAT, verticesBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, t_vboIds.get(1)); //texture
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, 4 * 2 * Buffers.SIZEOF_FLOAT, texCoordBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, t_vboIds.get(2)); //triangles
+		gl.glBufferData(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 4 * 3 * Buffers.SIZEOF_SHORT, indicies, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 0);
+	}
+	
+	private void initFBOTexture(PMVMatrix m, int width, int hight){
+		tex_height_c = (int)(tex_width_c*box.getHeight()/box.getWidth());
+	    // tex_height_c = tex_width_c;
+	    System.out.println("FBO Size: "+tex_height_c+"x"+tex_width_c);
+		System.out.println("FBO Scale: " + m.glGetMatrixf().get(0) +" " + m.glGetMatrixf().get(5));
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		if(fbo[0] > 0) {
+		    gl.glDeleteFramebuffers(1, fbo, 0);
+		    fbo[0] = 0;
+		}
+		if(texture[0]>0) {
+		    gl.glDeleteTextures(1, texture, 0);
+		    texture[0] = 0;
+		}
+		
+        gl.glGenFramebuffers(1, fbo, 0);
+		gl.glGenTextures(1, texture, 0);
+        gl.glGenRenderbuffers(1,rbo_depth, 0);
+        System.out.println("FBO: fbo " + fbo[0] + ", tex " + texture[0] + ", depth " + rbo_depth[0]);
+		
+        gl.glBindFramebuffer(GL2GL3.GL_DRAW_FRAMEBUFFER, fbo[0]);
+		gl.glBindTexture(GL2ES2.GL_TEXTURE_2D, texture[0]);
+		gl.glTexImage2D(GL2ES2.GL_TEXTURE_2D, 0, GL2ES2.GL_RGBA, tex_width_c, 
+				tex_height_c, 0, GL2ES2.GL_RGBA, GL2ES2.GL_UNSIGNED_BYTE, null);
+		
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_MIN_FILTER, GL2ES2.GL_LINEAR);
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_MAG_FILTER, GL2ES2.GL_LINEAR);
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_WRAP_S, GL2ES2.GL_CLAMP_TO_EDGE);
+		gl.glTexParameterf(GL2ES2.GL_TEXTURE_2D, GL2ES2.GL_TEXTURE_WRAP_T, GL2ES2.GL_CLAMP_TO_EDGE);
+
+	    gl.glFramebufferTexture2D(GL2GL3.GL_DRAW_FRAMEBUFFER, GL2ES2.GL_COLOR_ATTACHMENT0, 
+	                              GL2ES2.GL_TEXTURE_2D, texture[0], 0);
+
+        // Set up the depth buffer
+	    gl.glBindRenderbuffer(GL2ES2.GL_RENDERBUFFER, rbo_depth[0]);
+	    gl.glRenderbufferStorage(GL2ES2.GL_RENDERBUFFER, GL2ES2.GL_DEPTH_COMPONENT, tex_width_c, tex_height_c);
+	    gl.glFramebufferRenderbuffer(GL2ES2.GL_FRAMEBUFFER, GL2ES2.GL_DEPTH_COMPONENT, GL2ES2.GL_RENDERBUFFER, rbo_depth[0]);
+
+	    int status = gl.glCheckFramebufferStatus(GL2ES2.GL_FRAMEBUFFER);
+	    if(status != GL2ES2.GL_FRAMEBUFFER_COMPLETE){
+	    	System.err.println("Cant Create R2T pass!");
+	    }
+	    
+	    //render texture
+		PMVMatrix tex_matrix = new PMVMatrix();
+	    gl.glBindFramebuffer(GL2GL3.GL_DRAW_FRAMEBUFFER, fbo[0]);
+	    gl.glViewport(0, 0, tex_width_c, tex_height_c);
+	    tex_matrix.glMatrixMode(GLMatrixFunc.GL_PROJECTION);
+	    tex_matrix.glLoadIdentity();
+	    tex_matrix.glOrthof(box.getLow()[0], box.getHigh()[0], box.getLow()[1], box.getHigh()[1], -1, 1);
+	    
+	    if(!st.glUniform(gl, new GLUniformData("mgl_PMVMatrix", 4, 4, tex_matrix.glGetPMvMatrixf()))){
+	    	System.out.println("Cnt set tex based mat");
+	    }
+	    
+	    gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+	    gl.glClear(GL2ES2.GL_COLOR_BUFFER_BIT | GL2ES2.GL_DEPTH_BUFFER_BIT);
+	    renderRegion();
+
+	    gl.glBindFramebuffer(GL2ES2.GL_FRAMEBUFFER, 0);
+	    gl.glBindTexture(GL2ES2.GL_TEXTURE_2D, 0);
+	    
+	    setupBoundingBuffers();
+	}
+	
+	private void renderRegion(){
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0));
+		gl.glEnableVertexAttribArray(VERTEX_ATTR_IDX);
+		gl.glVertexAttribPointer(VERTEX_ATTR_IDX, 3, GL2ES2.GL_FLOAT, false, 3 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1));
+		gl.glEnableVertexAttribArray(TEXCOORD_ATTR_IDX);
+		gl.glVertexAttribPointer(TEXCOORD_ATTR_IDX, 2, GL2ES2.GL_FLOAT, false, 2 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2));
+		gl.glDrawElements(GL2ES2.GL_TRIANGLES, triangles.size() * 3, GL2ES2.GL_UNSIGNED_SHORT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+	}
+	
+	public void addTriangles(ArrayList<Triangle> tris) {
+		triangles.addAll(tris);
+		dirty = true;
+	}
+	
+	public int getNumVertices(){
+		return numVertices;
+	}
+	
+	public void addVertices(ArrayList<Vertex> verts){
+		vertices.addAll(verts);
+		numVertices = vertices.size();
+		dirty = true;
+	}
+	
+	public boolean isDirty(){
+		return dirty;
+	}
+	
+	public void destroy() {
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		gl.glDeleteBuffers(numBuffers, vboIds);
+		gl.glDeleteFramebuffers(1, fbo, 0);
+		fbo[0] = 0;
+		gl.glDeleteTextures(1, texture, 0);
+		texture[0] = 0;
+		gl.glDeleteRenderbuffers(1, rbo_depth, 0);
+		rbo_depth[0] = 0;
+	}
+	
+	public boolean isFlipped() {
+		return flipped;
+	}
+
+	public void setFlipped(boolean flipped) {
+		this.flipped = flipped;
+	}
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/VBORegionSPES2.java b/turtle2d/src/jogamp/graph/curve/opengl/VBORegionSPES2.java
new file mode 100644
index 000000000..701549d46
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/VBORegionSPES2.java
@@ -0,0 +1,185 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.opengl;
+
+import java.nio.FloatBuffer;
+import java.nio.IntBuffer;
+import java.nio.ShortBuffer;
+import java.util.ArrayList;
+
+import javax.media.opengl.GL2ES2;
+import javax.media.opengl.GLContext;
+
+import com.jogamp.common.nio.Buffers;
+import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.opengl.util.PMVMatrix;
+
+public class VBORegionSPES2  implements Region{
+	private int numVertices = 0;
+	private IntBuffer vboIds;
+	
+	private ArrayList<Triangle> triangles = new ArrayList<Triangle>();
+	private ArrayList<Vertex> vertices = new ArrayList<Vertex>();
+	
+	private GLContext context;
+	
+	private int numBuffers = 3;
+	
+	private boolean flipped = false;
+	private boolean dirty = false;
+	
+	public VBORegionSPES2(GLContext context){
+		this.context =context;
+	}
+	
+	public void update(){
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		ShortBuffer indicies = Buffers.newDirectShortBuffer(triangles.size() * 3);
+		
+		for(Triangle t:triangles){
+			final Vertex[] t_vertices = t.getVertices();
+			
+			if(t_vertices[0].getId() == Integer.MAX_VALUE){
+				t_vertices[0].setId(numVertices++);
+				t_vertices[1].setId(numVertices++);
+				t_vertices[2].setId(numVertices++);
+				
+				vertices.add(t.getVertices()[0]);
+				vertices.add(t.getVertices()[1]);
+				vertices.add(t.getVertices()[2]);
+
+				indicies.put((short) t.getVertices()[0].getId());
+				indicies.put((short) t.getVertices()[1].getId());
+				indicies.put((short) t.getVertices()[2].getId());
+			}
+			else{
+				Vertex v1 = t_vertices[0];
+				Vertex v2 = t_vertices[1];
+				Vertex v3 = t_vertices[2];
+				
+				indicies.put((short) v1.getId());
+				indicies.put((short) v2.getId());
+				indicies.put((short) v3.getId());
+			}
+		}
+		indicies.rewind();
+		
+		FloatBuffer verticesBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 3);
+		for(Vertex v:vertices){
+			verticesBuffer.put(v.getX());
+			if(flipped){
+				verticesBuffer.put(-1*v.getY());
+			}
+			else{
+				verticesBuffer.put(v.getY());
+			}
+			verticesBuffer.put(v.getZ());
+		}
+		verticesBuffer.rewind();
+		
+		FloatBuffer texCoordBuffer = Buffers.newDirectFloatBuffer(vertices.size() * 2);
+		for(Vertex v:vertices){
+			float[] tex = v.getTexCoord();
+			texCoordBuffer.put(tex[0]);
+			texCoordBuffer.put(tex[1]);
+		}
+		texCoordBuffer.rewind();
+
+		vboIds = IntBuffer.allocate(numBuffers);
+		gl.glGenBuffers(numBuffers, vboIds);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0)); // vertices
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 3 * Buffers.SIZEOF_FLOAT, verticesBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1)); //texture
+		gl.glBufferData(GL2ES2.GL_ARRAY_BUFFER, numVertices * 2 * Buffers.SIZEOF_FLOAT, texCoordBuffer, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2)); //triangles
+		gl.glBufferData(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, triangles.size()* 3 * Buffers.SIZEOF_SHORT, indicies, GL2ES2.GL_STATIC_DRAW);
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, 0);
+		
+		dirty = false;
+	}
+	
+	private void render() {
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(0));
+		gl.glEnableVertexAttribArray(VERTEX_ATTR_IDX);
+		gl.glVertexAttribPointer(VERTEX_ATTR_IDX, 3, GL2ES2.GL_FLOAT, false, 3 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, vboIds.get(1));
+		gl.glEnableVertexAttribArray(TEXCOORD_ATTR_IDX);
+		gl.glVertexAttribPointer(TEXCOORD_ATTR_IDX, 2, GL2ES2.GL_FLOAT, false, 2 * Buffers.SIZEOF_FLOAT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ELEMENT_ARRAY_BUFFER, vboIds.get(2));
+		gl.glDrawElements(GL2ES2.GL_TRIANGLES, triangles.size() * 3, GL2ES2.GL_UNSIGNED_SHORT, 0);
+		
+		gl.glBindBuffer(GL2ES2.GL_ARRAY_BUFFER, 0);
+	}
+	
+	public void render(PMVMatrix matrix, int vp_width, int vp_height, int width){
+		render();
+	}
+	
+	public void addTriangles(ArrayList<Triangle> tris) {
+		triangles.addAll(tris);
+		dirty = true;
+	}
+	
+	public int getNumVertices(){
+		return numVertices;
+	}
+	
+	public void addVertices(ArrayList<Vertex> verts){
+		vertices.addAll(verts);
+		numVertices = vertices.size();
+		dirty = true;
+	}
+	
+	public boolean isDirty(){
+		return dirty;
+	}
+	
+	public void destroy() {
+		GL2ES2 gl = context.getGL().getGL2ES2();
+		gl.glDeleteBuffers(numBuffers, vboIds);
+	}
+	
+	public boolean isFlipped() {
+		return flipped;
+	}
+
+	public void setFlipped(boolean flipped) {
+		this.flipped = flipped;
+	}
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.fp b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.fp
new file mode 100644
index 000000000..2b3a0ce1d
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.fp
@@ -0,0 +1,99 @@
+//#version 100
+
+uniform float p1y;
+uniform float g_alpha;
+uniform vec3 g_color;
+uniform float a_strength;
+
+varying vec2 v_texCoord;
+
+vec3 b_color = vec3(0.0, 0.0, 0.0);
+
+uniform sampler2D texture;
+vec4 weights = vec4(0.075, 0.06, 0.045, 0.025);
+
+void main (void)
+{
+	vec2 rtex = vec2(abs(v_texCoord.x),abs(v_texCoord.y));
+	vec3 c = g_color;
+	
+	float alpha = 0.0;
+	
+	if((v_texCoord.x == 0.0) && (v_texCoord.y == 0.0)){
+	 	alpha = g_alpha;
+	}
+	else if((v_texCoord.x >= 5.0)){
+		vec2 dfx = dFdx(v_texCoord);
+		vec2 dfy = dFdy(v_texCoord);
+		
+		vec2 size = 1.0/textureSize(texture,0); //version 130
+		rtex -= 5.0;
+		vec4 t = texture2D(texture, rtex)* 0.18;
+
+		t += texture2D(texture, rtex + size*(vec2(1, 0)))*weights.x;
+		t +=  texture2D(texture, rtex - size*(vec2(1, 0)))*weights.x;
+		t +=  texture2D(texture, rtex + size*(vec2(0, 1)))*weights.x;
+		t +=  texture2D(texture, rtex - size*(vec2(0, 1)))*weights.x;
+		
+		t += texture2D(texture, rtex + 2.0*size*(vec2(1, 0))) *weights.y;
+		t +=  texture2D(texture, rtex - 2.0*size*(vec2(1, 0)))*weights.y;
+		t +=  texture2D(texture, rtex + 2.0*size*(vec2(0, 1)))*weights.y; 
+		t +=  texture2D(texture, rtex - 2.0*size*(vec2(0, 1)))*weights.y;
+		
+		t += texture2D(texture, rtex + 3.0*size*(vec2(1, 0))) *weights.z;
+		t +=  texture2D(texture, rtex - 3.0*size*(vec2(1, 0)))*weights.z;
+		t +=  texture2D(texture, rtex + 3.0*size*(vec2(0, 1)))*weights.z;
+		t +=  texture2D(texture, rtex - 3.0*size*(vec2(0, 1)))*weights.z;
+		
+		t += texture2D(texture, rtex + 4.0*size*(vec2(1, 0))) *weights.w;
+		t +=  texture2D(texture, rtex - 4.0*size*(vec2(1, 0)))*weights.w;
+		t +=  texture2D(texture, rtex + 4.0*size*(vec2(0, 1)))*weights.w;
+		t +=  texture2D(texture, rtex - 4.0*size*(vec2(0, 1)))*weights.w;
+		
+		if(t.w == 0.0){
+			discard;
+		}
+		
+		c = t.xyz;
+		alpha = g_alpha* t.w;
+	}
+	///////////////////////////////////////////////////////////
+	else if ((v_texCoord.x > 0.0) && (rtex.y > 0.0 || rtex.x == 1.0)){
+  		vec2 dtx = dFdx(rtex);
+  		vec2 dty = dFdy(rtex);
+  		
+  		rtex.y -= 0.1;
+  		if(rtex.y < 0.0) {
+  			if(v_texCoord.y < 0.0)
+  				discard;
+  			else{
+  				rtex.y = 0.0;
+  			}
+  		}
+  		
+  		vec2 f = vec2((dtx.y - 2.0*p1y*dtx.x + 4.0*p1y*rtex.x*dtx.x), (dty.y - 2.0*p1y*dty.x + 4.0*p1y*rtex.x*dty.x));
+  		
+  		float position = rtex.y - ((2.0 * rtex.x * p1y) * (1.0 - rtex.x));
+  		float d = position/(length(f));
+
+		float a = (0.5 - d * sign(v_texCoord.y));  
+		
+		
+		if (a >= 1.0)  { 
+	    	alpha = g_alpha;
+	    //	c = vec3(1.0,1.0,1.0);
+    	} 
+  		else if (a <= 0.0) {
+   			alpha = 0.0;//discard;
+   		//	c = vec3(0.0,0.0,0.0);
+   			
+   		}
+  		else {           
+    		alpha = g_alpha*a;
+    	//	c = vec3(a,a,a);
+    		mix(b_color,g_color, a);
+    	}  
+	}
+	
+    gl_FragColor = vec4(c, alpha);
+}
diff --git a/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.vp b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.vp
new file mode 100644
index 000000000..bc9ecb41e
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/opengl/shader/curverenderer01.vp
@@ -0,0 +1,13 @@
+//#version 100
+
+uniform mat4 mgl_PMVMatrix[2];
+attribute vec4 v_position;
+attribute vec2 texCoord; 
+
+varying vec2 v_texCoord;
+
+void main(void)
+{
+  gl_Position = mgl_PMVMatrix[0] * mgl_PMVMatrix[1] * v_position;
+  v_texCoord = texCoord.st;
+}
\ No newline at end of file
diff --git a/turtle2d/src/jogamp/graph/curve/tess/GraphOutline.java b/turtle2d/src/jogamp/graph/curve/tess/GraphOutline.java
new file mode 100644
index 000000000..5dae296e5
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/tess/GraphOutline.java
@@ -0,0 +1,81 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.tess;
+
+import java.util.ArrayList;
+
+import com.jogamp.graph.geom.Outline;
+import com.jogamp.graph.geom.Vertex;
+
+public class GraphOutline {
+	final private Outline outline;
+	final private ArrayList<GraphVertex> controlpoints = new ArrayList<GraphVertex>(3);
+	
+	public GraphOutline(){
+		this.outline = new Outline();
+	}
+	
+	/**Create a control polyline of control vertices
+	 * the curve pieces can be identified by onCurve flag 
+	 * of each cp the control polyline is open by default
+	 */
+	public GraphOutline(Outline ol){
+		this.outline = ol;
+		ArrayList<Vertex> vertices = this.outline.getVertices();
+		for(Vertex v:vertices){
+			this.controlpoints.add(new GraphVertex(v));
+		}
+	}
+
+	public Outline getOutline() {
+		return outline;
+	}
+
+	/*public void setOutline(Outline<T> outline) {
+		this.outline = outline;
+	}*/
+	
+
+	public ArrayList<GraphVertex> getGraphPoint() {
+		return controlpoints;
+	}
+	
+	public ArrayList<Vertex> getPoints() {
+		return outline.getVertices();
+	}
+
+	/*public void setControlpoints(ArrayList<GraphPoint<T>> controlpoints) {
+		this.controlpoints = controlpoints;
+	}*/
+
+	public void addVertex(GraphVertex v) {
+		controlpoints.add(v);
+		outline.addVertex(v.getPoint());
+	}
+	
+}
diff --git a/turtle2d/src/jogamp/graph/curve/tess/GraphVertex.java b/turtle2d/src/jogamp/graph/curve/tess/GraphVertex.java
new file mode 100644
index 000000000..b9f95a0e7
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/tess/GraphVertex.java
@@ -0,0 +1,120 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.tess;
+
+import java.util.ArrayList;
+
+import com.jogamp.graph.geom.Vertex;
+
+public class GraphVertex {
+	private Vertex point;
+	private ArrayList<HEdge> edges = null;
+	private boolean boundaryContained = false;
+	
+	public GraphVertex(Vertex point) {
+		this.point = point;
+	}
+
+	public Vertex getPoint() {
+		return point;
+	}
+	
+	public float getX(){
+		return point.getX();
+	}
+	
+	public float getY(){
+		return point.getY();
+	}
+	
+	public float getZ(){
+		return point.getZ();
+	}
+	public float[] getCoord() {
+		return point.getCoord();
+	}
+
+	public void setPoint(Vertex point) {
+		this.point = point;
+	}
+
+	public ArrayList<HEdge> getEdges() {
+		return edges;
+	}
+
+	public void setEdges(ArrayList<HEdge> edges) {
+		this.edges = edges;
+	}
+	
+	public void addEdge(HEdge edge){
+		if(edges == null){
+			edges = new ArrayList<HEdge>();
+		}
+		edges.add(edge);
+	}
+	public void removeEdge(HEdge edge){
+		if(edges == null)
+			return;
+		edges.remove(edge);
+		if(edges.size() == 0){
+			edges = null;
+		}
+	}
+	public HEdge findNextEdge(GraphVertex nextVert){
+		for(HEdge e:edges){
+			if(e.getNext().getGraphPoint() == nextVert){
+				return e;
+			}
+		}
+		return null;
+	}
+	public HEdge findBoundEdge(){
+		for(HEdge e:edges){
+			if((e.getType() == HEdge.BOUNDARY) || (e.getType() == HEdge.HOLE)){
+				return e;
+			}
+		}
+		return null;
+	}
+	public HEdge findPrevEdge(GraphVertex prevVert){
+		for(HEdge e:edges){
+			if(e.getPrev().getGraphPoint() == prevVert){
+				return e;
+			}
+		}
+		return null;
+	}
+	
+	public boolean isBoundaryContained() {
+		return boundaryContained;
+	}
+
+	public void setBoundaryContained(boolean boundaryContained) {
+		this.boundaryContained = boundaryContained;
+	}
+}
diff --git a/turtle2d/src/jogamp/graph/curve/tess/HEdge.java b/turtle2d/src/jogamp/graph/curve/tess/HEdge.java
new file mode 100644
index 000000000..d1bcc6e17
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/tess/HEdge.java
@@ -0,0 +1,130 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.tess;
+
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.Triangle;
+
+
+public class HEdge {
+	public static int BOUNDARY = 3;
+	public static int INNER = 1;
+	public static int HOLE = 2;
+	
+	private GraphVertex vert;
+	private HEdge prev = null;
+	private HEdge next = null;
+	private HEdge sibling = null;
+	private int type = BOUNDARY;
+	private Triangle triangle = null;
+	
+	public HEdge(GraphVertex vert, int type) {
+		this.vert = vert;
+		this.type = type;
+	}
+
+	public HEdge(GraphVertex vert, HEdge prev, HEdge next, HEdge sibling, int type) {
+		this.vert = vert;
+		this.prev = prev;
+		this.next = next;
+		this.sibling = sibling;
+		this.type = type;
+	}
+
+	public HEdge(GraphVertex vert, HEdge prev, HEdge next, HEdge sibling, int type, Triangle triangle) {
+		this.vert = vert;
+		this.prev = prev;
+		this.next = next;
+		this.sibling = sibling;
+		this.type = type;
+		this.triangle = triangle;
+	}
+
+	public GraphVertex getGraphPoint() {
+		return vert;
+	}
+
+	public void setVert(GraphVertex vert) {
+		this.vert = vert;
+	}
+
+	public HEdge getPrev() {
+		return prev;
+	}
+
+	public void setPrev(HEdge prev) {
+		this.prev = prev;
+	}
+
+	public HEdge getNext() {
+		return next;
+	}
+
+	public void setNext(HEdge next) {
+		this.next = next;
+	}
+
+	public HEdge getSibling() {
+		return sibling;
+	}
+
+	public void setSibling(HEdge sibling) {
+		this.sibling = sibling;
+	}
+
+	public int getType() {
+		return type;
+	}
+
+	public void setType(int type) {
+		this.type = type;
+	}
+
+	public Triangle getTriangle() {
+		return triangle;
+	}
+
+	public void setTriangle(Triangle triangle) {
+		this.triangle = triangle;
+	}
+	
+	public static <T extends Vertex> void connect(HEdge first, HEdge next){
+		first.setNext(next);
+		next.setPrev(first);
+	}
+	
+	public static <T extends Vertex> void makeSiblings(HEdge first, HEdge second){
+		first.setSibling(second);
+		second.setSibling(first);
+	}
+	
+	public boolean vertexOnCurveVertex(){
+		return vert.getPoint().isOnCurve();
+	}
+	
+}
diff --git a/turtle2d/src/jogamp/graph/curve/tess/Loop.java b/turtle2d/src/jogamp/graph/curve/tess/Loop.java
new file mode 100644
index 000000000..fd7736a20
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/tess/Loop.java
@@ -0,0 +1,373 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.tess;
+
+import java.util.ArrayList;
+
+
+import com.jogamp.graph.geom.AABBox;
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.graph.math.VectorUtil;
+
+public class Loop {
+	private HEdge root = null;
+	private AABBox box = new AABBox();
+	private GraphOutline initialOutline = null;
+
+	public Loop(GraphOutline polyline, int direction){
+		initialOutline = polyline;
+		this.root = initFromPolyline(initialOutline, direction);
+	}
+
+	public HEdge getHEdge(){
+		return root;
+	}
+
+	public Triangle cut(boolean delaunay){
+		if(isSimplex()){
+			Triangle t = new Triangle(root.getGraphPoint().getPoint(), root.getNext().getGraphPoint().getPoint(), 
+					root.getNext().getNext().getGraphPoint().getPoint());
+			t.setVerticesBoundary(checkVerticesBoundary(root));
+			return t;
+		}
+		HEdge prev = root.getPrev();
+		HEdge next1 = root.getNext();
+
+		HEdge next2 = findClosestValidNeighbor(next1.getNext(), delaunay);
+		if(next2 == null){
+			root = root.getNext();
+			return null;
+		}
+
+		GraphVertex v1 = root.getGraphPoint();
+		GraphVertex v2 = next1.getGraphPoint();
+		GraphVertex v3 = next2.getGraphPoint();
+
+		HEdge v3Edge = new HEdge(v3, HEdge.INNER);
+
+		HEdge.connect(v3Edge, root);
+		HEdge.connect(next1, v3Edge);
+
+		HEdge v3EdgeSib = v3Edge.getSibling();
+		if(v3EdgeSib == null){
+			v3EdgeSib = new HEdge(v3Edge.getNext().getGraphPoint(), HEdge.INNER);
+			HEdge.makeSiblings(v3Edge, v3EdgeSib);
+		}
+
+		HEdge.connect(prev, v3EdgeSib);
+		HEdge.connect(v3EdgeSib, next2);
+
+		Triangle t = createTriangle(v1.getPoint(), v2.getPoint(), v3.getPoint(), root);
+		this.root = next2;
+		return t;
+	}
+
+	public boolean isSimplex(){
+		return (root.getNext().getNext().getNext() == root);
+	}
+
+	/**Create a connected list of half edges (loop)
+	 * from the boundary profile
+	 * @param direction requested winding of edges (CCW or CW)
+	 */
+	private HEdge initFromPolyline(GraphOutline outline, int direction){
+		ArrayList<GraphVertex> vertices = outline.getGraphPoint();
+
+		if(vertices.size()<3) {
+			throw new IllegalArgumentException("outline's vertices < 3: " + vertices.size());
+		}
+		boolean isCCW = VectorUtil.ccw(vertices.get(0).getPoint(), vertices.get(1).getPoint(),
+				vertices.get(2).getPoint());
+		boolean invert = isCCW && (direction == VectorUtil.CW);
+
+		HEdge firstEdge = null;
+		HEdge lastEdge = null;
+		int index =0;
+		int max = vertices.size();
+
+		int edgeType =  HEdge.BOUNDARY;
+		if(invert){
+			index = vertices.size() -1;
+			max = -1;
+			edgeType = HEdge.HOLE;
+		}
+
+		while(index != max){
+			GraphVertex v1 = vertices.get(index);
+			box.resize(v1.getX(), v1.getY(), v1.getZ());
+
+			HEdge edge = new HEdge(v1, edgeType);
+
+			v1.addEdge(edge);
+			if(lastEdge != null){
+				lastEdge.setNext(edge);
+				edge.setPrev(lastEdge);
+			}
+			else{
+				firstEdge = edge;
+			}
+
+			if(!invert){
+				if(index == vertices.size()-1){
+					edge.setNext(firstEdge);
+					firstEdge.setPrev(edge);
+				}
+			}
+			else if (index == 0){
+				edge.setNext(firstEdge);
+				firstEdge.setPrev(edge);
+			}
+
+			lastEdge = edge;
+
+			if(!invert){
+				index++;
+			}
+			else{
+				index--;
+			}
+		}
+		return firstEdge;
+	}
+
+	public void addConstraintCurve(GraphOutline polyline) {
+		//		GraphOutline outline = new GraphOutline(polyline);
+		/**needed to generate vertex references.*/
+		initFromPolyline(polyline, VectorUtil.CW); 
+
+		GraphVertex v3 = locateClosestVertex(polyline);
+		HEdge v3Edge = v3.findBoundEdge();
+		HEdge v3EdgeP = v3Edge.getPrev();
+		HEdge crossEdge = new HEdge(root.getGraphPoint(), HEdge.INNER);
+
+		HEdge.connect(root.getPrev(), crossEdge);
+		HEdge.connect(crossEdge, v3Edge);
+
+		HEdge crossEdgeSib = crossEdge.getSibling();
+		if(crossEdgeSib == null) {
+			crossEdgeSib = new HEdge(crossEdge.getNext().getGraphPoint(), HEdge.INNER);
+			HEdge.makeSiblings(crossEdge, crossEdgeSib);
+		}
+
+		HEdge.connect(v3EdgeP, crossEdgeSib);
+		HEdge.connect(crossEdgeSib, root);
+	}
+
+	/** Locates the vertex and update the loops root 
+	 * to have (root + vertex) as closest pair 
+	 * @param polyline the control polyline 
+	 * to search for closestvertices
+	 * @return the vertex that is closest to the newly set root Hedge.
+	 */
+	private GraphVertex locateClosestVertex(GraphOutline polyline) {
+		HEdge closestE = null;
+		GraphVertex closestV = null;
+
+		float minDistance = Float.MAX_VALUE;
+		boolean inValid = false;
+		ArrayList<GraphVertex> initVertices = initialOutline.getGraphPoint();
+		ArrayList<GraphVertex> vertices = polyline.getGraphPoint();
+
+		for(int i=0; i< initVertices.size()-1; i++){
+			GraphVertex v = initVertices.get(i);
+			GraphVertex nextV = initVertices.get(i+1);
+			for(GraphVertex cand:vertices){
+				float distance = VectorUtil.computeLength(v.getCoord(), cand.getCoord());
+				if(distance < minDistance){
+					for (GraphVertex vert:vertices){
+						if(vert == v || vert == nextV || vert == cand)
+							continue;
+						inValid = VectorUtil.inCircle(v.getPoint(), nextV.getPoint(), 
+								cand.getPoint(), vert.getPoint());
+						if(inValid){
+							break;
+						}
+					}
+					if(!inValid){
+						closestV = cand;
+						minDistance = distance;
+						closestE = v.findBoundEdge();
+					}
+				}
+
+			}
+		}
+
+		if(closestE != null){
+			root = closestE;
+		}
+
+		return closestV;
+	}
+
+	private HEdge findClosestValidNeighbor(HEdge edge, boolean delaunay) {
+		HEdge next = root.getNext();
+
+		if(!VectorUtil.ccw(root.getGraphPoint().getPoint(), next.getGraphPoint().getPoint(),
+				edge.getGraphPoint().getPoint())){
+			return null;
+		}
+
+		HEdge candEdge = edge;
+		boolean inValid = false;
+
+		if(delaunay){
+		    Vertex cand = candEdge.getGraphPoint().getPoint();
+			HEdge e = candEdge.getNext();
+			while (e != candEdge){
+				if(e.getGraphPoint() == root.getGraphPoint() 
+						|| e.getGraphPoint() == next.getGraphPoint() 
+						|| e.getGraphPoint().getPoint() == cand){
+					e = e.getNext();
+					continue;
+				}
+				inValid = VectorUtil.inCircle(root.getGraphPoint().getPoint(), next.getGraphPoint().getPoint(),
+						cand, e.getGraphPoint().getPoint());
+				if(inValid){
+					break;
+				}
+				e = e.getNext();
+			}
+		}
+		if(!inValid){
+			return candEdge;
+		}
+		return null;
+	}
+
+	/** Create a triangle from the param vertices only if
+	 * the triangle is valid. IE not outside region.
+	 * @param v1 vertex 1
+	 * @param v2 vertex 2
+	 * @param v3 vertex 3
+	 * @param root and edge of this triangle
+	 * @return the triangle iff it satisfies, null otherwise
+	 */
+	private Triangle createTriangle(Vertex v1, Vertex v2, Vertex v3, HEdge rootT){
+		Triangle t = new Triangle(v1, v2, v3);
+		t.setVerticesBoundary(checkVerticesBoundary(rootT));
+		return t;
+	}
+
+	private boolean[] checkVerticesBoundary(HEdge rootT) {
+		boolean[] boundary = new boolean[3];
+		HEdge e1 = rootT;
+		HEdge e2 = rootT.getNext();
+		HEdge e3 = rootT.getNext().getNext();
+
+		if(e1.getGraphPoint().isBoundaryContained()){
+				boundary[0] = true;
+		}
+		if(e2.getGraphPoint().isBoundaryContained()){
+				boundary[1] = true;
+		}
+		if(e3.getGraphPoint().isBoundaryContained()){
+				boundary[2] = true;
+		}
+		return boundary;
+	}
+
+
+	/** Check if vertex inside the Loop
+	 * @param vertex the Vertex
+	 * @return true if the vertex is inside, false otherwise
+	 */
+	public boolean checkInside(Vertex vertex) {
+		if(!box.contains(vertex.getX(), vertex.getY(), vertex.getZ())){
+			return false;
+		}
+
+		float[] center = box.getCenter();
+
+		int hits = 0;
+		HEdge current = root;
+		HEdge next = root.getNext();
+		while(next!= root){
+			if(current.getType() == HEdge.INNER || next.getType() == HEdge.INNER){
+				current = next;
+				next = current.getNext();
+				continue;
+			}
+			Vertex vert1 = current.getGraphPoint().getPoint();
+			Vertex vert2 = next.getGraphPoint().getPoint();
+
+			/** The ray is P0+s*D0, where P0 is the ray origin, D0 is a direction vector and s >= 0. 
+			 * The segment is P1+t*D1, where P1 and P1+D1 are the endpoints, and 0 <= t <= 1. 
+			 * perp(x,y) = (y,-x).
+			 * if Dot(perp(D1),D0) is not zero,
+			 * s = Dot(perp(D1),P1-P0)/Dot(perp(D1),D0)
+			 * t = Dot(perp(D0),P1-P0)/Dot(perp(D1),D0)
+			 */
+
+			float[] d0 = new float[]{center[0] - vertex.getX(), center[1]-vertex.getY(),
+					center[2]-vertex.getZ()};
+			float[] d1 = {vert2.getX() - vert1.getX(), vert2.getY() - vert1.getY(),
+					vert2.getZ() - vert1.getZ()};
+
+			float[] prep_d1 = {d1[1],-1*d1[0], d1[2]};
+			float[] prep_d0 = {d0[1],-1*d0[0], d0[2]};
+
+			float[] p0p1 = new float[]{vert1.getX() - vertex.getX(), vert1.getY() - vertex.getY(),
+					vert1.getZ() - vertex.getZ()};
+
+			float dotD1D0 = VectorUtil.dot(prep_d1, d0);
+			if(dotD1D0 == 0){ 
+				/** ray parallel to segment */
+				current = next;
+				next = current.getNext();
+				continue;
+			}
+
+			float s = VectorUtil.dot(prep_d1,p0p1)/dotD1D0;
+			float t = VectorUtil.dot(prep_d0,p0p1)/dotD1D0;
+
+			if(s >= 0 && t >= 0 && t<= 1){
+				hits++;
+			}
+			current = next;
+			next = current.getNext();
+		}
+
+		if(hits % 2 != 0){ 
+			/** check if hit count is even */
+			return true;
+		}
+		return false;
+	}
+
+	public int computeLoopSize(){
+		int size = 0;
+		HEdge e = root;
+		do{
+			size++;
+			e = e.getNext();
+		}while(e != root);
+		return size;
+	}
+}
diff --git a/turtle2d/src/jogamp/graph/curve/text/GlyphShape.java b/turtle2d/src/jogamp/graph/curve/text/GlyphShape.java
new file mode 100644
index 000000000..36ba57244
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/text/GlyphShape.java
@@ -0,0 +1,161 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.text;
+
+import java.util.ArrayList;
+
+import jogamp.graph.geom.plane.PathIterator;
+
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.Triangle;
+
+import com.jogamp.graph.curve.OutlineShape;
+import com.jogamp.graph.math.Quaternion;
+
+public class GlyphShape {
+	
+	private Quaternion quat= null;
+	private int numVertices = 0;
+	private OutlineShape shape = null;
+	
+	/** Create a new Glyph shape
+	 * based on Parametric curve control polyline
+	 */
+	public GlyphShape(Vertex.Factory<? extends Vertex> factory){
+		shape = new OutlineShape(factory);
+	}
+	
+	/** Create a GlyphShape from a font Path Iterator
+	 * @param pathIterator the path iterator
+	 * 
+	 * @see PathIterator
+	 */
+	public GlyphShape(Vertex.Factory<? extends Vertex> factory, PathIterator pathIterator){
+		this(factory);
+		
+		if(null != pathIterator){
+			while(!pathIterator.isDone()){
+				float[] coords = new float[6];
+				int segmentType = pathIterator.currentSegment(coords);
+				addOutlineVerticesFromGlyphVector(coords, segmentType);
+
+				pathIterator.next();
+			}
+		}
+		shape.transformOutlines(OutlineShape.QUADRATIC_NURBS);
+	}
+	
+	public final Vertex.Factory<? extends Vertex> vertexFactory() { return shape.vertexFactory(); }
+	
+	private void addVertexToLastOutline(Vertex vertex){
+		shape.addVertex(vertex);
+	}
+	
+	private void addOutlineVerticesFromGlyphVector(float[] coords, int segmentType){
+		if(segmentType == PathIterator.SEG_MOVETO){
+			if(!shape.getLastOutline().isEmpty()){
+				shape.addEmptyOutline();
+			}			
+			Vertex vert = vertexFactory().create(coords[0],coords[1]);
+			vert.setOnCurve(true);
+			addVertexToLastOutline(vert);
+			
+			numVertices++;
+		}
+		else if(segmentType == PathIterator.SEG_LINETO){
+			Vertex vert1 = vertexFactory().create(coords[0],coords[1]);
+			vert1.setOnCurve(true);
+			addVertexToLastOutline(vert1);
+			
+			numVertices++;
+		}
+		else if(segmentType == PathIterator.SEG_QUADTO){
+			Vertex vert1 = vertexFactory().create(coords[0],coords[1]);
+			vert1.setOnCurve(false);
+			addVertexToLastOutline(vert1);
+
+			Vertex vert2 = vertexFactory().create(coords[2],coords[3]);
+			vert2.setOnCurve(true);
+			addVertexToLastOutline(vert2);
+			
+			numVertices+=2;
+		}
+		else if(segmentType == PathIterator.SEG_CUBICTO){
+			Vertex vert1 = vertexFactory().create(coords[0],coords[1]);
+			vert1.setOnCurve(false);
+			addVertexToLastOutline(vert1);
+
+			Vertex vert2 = vertexFactory().create(coords[2],coords[3]);
+			vert2.setOnCurve(false);
+			addVertexToLastOutline(vert2);
+
+			Vertex vert3 = vertexFactory().create(coords[4],coords[5]);
+			vert3.setOnCurve(true);
+			addVertexToLastOutline(vert3);
+			
+			numVertices+=3;
+		}
+		else if(segmentType == PathIterator.SEG_CLOSE){
+			shape.closeLastOutline();
+		}
+	}
+	
+	public int getNumVertices() {
+		return numVertices;
+	}
+	
+	/** Get the rotational Quaternion attached to this Shape
+	 * @return the Quaternion Object
+	 */
+	public Quaternion getQuat() {
+		return quat;
+	}
+	
+	/** Set the Quaternion that shall defien the rotation
+	 * of this shape.
+	 * @param quat
+	 */
+	public void setQuat(Quaternion quat) {
+		this.quat = quat;
+	}
+	
+	/** Triangluate the glyph shape
+	 * @param sharpness sharpness of the curved regions default = 0.5
+	 * @return ArrayList of triangles which define this shape
+	 */
+	public ArrayList<Triangle> triangulate(float sharpness){
+		return shape.triangulate(sharpness);
+	}
+
+	/** Get the list of Vertices of this Object
+	 * @return arrayList of Vertices
+	 */
+	public ArrayList<Vertex> getVertices(){
+		return shape.getVertices();
+	}	
+}
diff --git a/turtle2d/src/jogamp/graph/curve/text/GlyphString.java b/turtle2d/src/jogamp/graph/curve/text/GlyphString.java
new file mode 100644
index 000000000..808e3a415
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/curve/text/GlyphString.java
@@ -0,0 +1,163 @@
+/**
+ * Copyright 2010 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.curve.text;
+
+import java.util.ArrayList;
+
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.Triangle;
+import com.jogamp.graph.geom.opengl.SVertex;
+
+import javax.media.opengl.GLContext;
+
+import jogamp.graph.geom.plane.AffineTransform;
+import jogamp.graph.geom.plane.Path2D;
+import jogamp.graph.geom.plane.PathIterator;
+
+
+import com.jogamp.graph.curve.Region;
+import com.jogamp.graph.curve.RegionFactory;
+import com.jogamp.opengl.util.PMVMatrix;
+import com.jogamp.opengl.util.glsl.ShaderState;
+
+public class GlyphString {
+	private final Vertex.Factory<? extends Vertex> pointFactory;	
+	private ArrayList<GlyphShape> glyphs = new ArrayList<GlyphShape>();
+	private String str = "";
+	private String fontname = "";
+	private Region region;
+	
+	private SVertex origin = new SVertex();
+
+	/** Create a new GlyphString object
+	 * @param fontname the name of the font that this String is
+	 * associated with
+	 * @param str the string object
+	 */
+	public GlyphString(Vertex.Factory<? extends Vertex> factory, String fontname, String str){
+		pointFactory = factory;
+		this.fontname = fontname;
+		this.str = str;
+	}
+	
+	public final Vertex.Factory<? extends Vertex> pointFactory() { return pointFactory; }
+	
+	public void addGlyphShape(GlyphShape glyph){
+		glyphs.add(glyph);
+	}
+	public String getString(){
+		return str;
+	}
+
+	/** Creates the Curve based Glyphs from a Font 
+	 * @param paths a list of FontPath2D objects that define the outline
+	 * @param affineTransform a global affine transformation applied to the paths.
+	 */
+	public void createfromFontPath(Path2D[] paths, AffineTransform affineTransform){
+		final int numGlyps = paths.length;
+		for (int index=0;index<numGlyps;index++){
+			if(paths[index] == null){
+				continue;
+			}
+			PathIterator iterator = paths[index].iterator(affineTransform);
+			GlyphShape glyphShape = new GlyphShape(pointFactory, iterator);
+			
+			if(glyphShape.getNumVertices() < 3) {
+				continue;
+			}			
+			addGlyphShape(glyphShape);
+		}
+	}
+	
+	private ArrayList<Triangle> initializeTriangles(float sharpness){
+		ArrayList<Triangle> triangles = new ArrayList<Triangle>();
+		for(GlyphShape glyph:glyphs){
+			ArrayList<Triangle> tris = glyph.triangulate(sharpness);
+			triangles.addAll(tris);
+		}
+		return triangles;
+	}
+	
+	/** Generate a OGL Region to represent this Object.
+	 * @param context the GLContext which the region is defined by.
+	 * @param shaprness the curvature sharpness of the object.
+	 * @param st shader state
+	 */
+	public void generateRegion(GLContext context, float shaprness, ShaderState st, int type){
+		region = RegionFactory.create(context, st, type);
+		region.setFlipped(true);
+		
+		ArrayList<Triangle> tris = initializeTriangles(shaprness);
+		region.addTriangles(tris);
+		
+		int numVertices = region.getNumVertices();
+		for(GlyphShape glyph:glyphs){
+			ArrayList<Vertex> gVertices = glyph.getVertices();
+			for(Vertex vert:gVertices){
+				vert.setId(numVertices++);
+			}
+			region.addVertices(gVertices);
+		}
+		
+		/** initialize the region */
+		region.update();
+	}
+	
+	/** Generate a Hashcode for this object 
+	 * @return a string defining the hashcode
+	 */
+	public String getTextHashCode(){
+		return "" + fontname.hashCode() + str.hashCode();
+	}
+
+	/** Render the Object based using the associated Region
+	 *  previously generated.
+	 */
+	public void renderString3D() {
+		region.render(null, 0, 0, 0);
+	}
+	/** Render the Object based using the associated Region
+	 *  previously generated.
+	 */
+	public void renderString3D(PMVMatrix matrix, int vp_width, int vp_height, int size) {
+		region.render(matrix, vp_width, vp_height, size);
+	}
+	
+	/** Get the Origion of this GlyphString
+	 * @return 
+	 */
+	public Vertex getOrigin() {
+		return origin;
+	}
+
+	/** Destroy the associated OGL objects
+	 */
+	public void destroy(){
+		region.destroy();
+	}
+}
diff --git a/turtle2d/src/jogamp/graph/font/FontConstructor.java b/turtle2d/src/jogamp/graph/font/FontConstructor.java
new file mode 100644
index 000000000..a382d292e
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/FontConstructor.java
@@ -0,0 +1,34 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font;
+
+import com.jogamp.graph.font.Font;
+
+public interface FontConstructor {
+    Font create(String name);
+}
diff --git a/turtle2d/src/jogamp/graph/font/FontInt.java b/turtle2d/src/jogamp/graph/font/FontInt.java
new file mode 100644
index 000000000..4d9390da2
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/FontInt.java
@@ -0,0 +1,50 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font;
+
+import jogamp.graph.geom.plane.AffineTransform;
+import jogamp.graph.geom.plane.Path2D;
+
+import com.jogamp.graph.font.Font;
+
+public interface FontInt extends Font {
+
+    public interface Glyph extends Font.Glyph {
+        // reserved special glyph IDs 
+        // http://scripts.sil.org/cms/scripts/page.php?item_id=IWS-Chapter08#ba57949e
+        public static final int ID_UNKNOWN = 0;
+        public static final int ID_CR = 2;
+        public static final int ID_SPACE = 3;
+                
+        public Path2D getPath();  // unscaled path
+        public Path2D getPath(float pixelSize);         
+    }
+
+    public void getOutline(String string, float pixelSize,
+                           AffineTransform transform, Path2D[] result);
+}
diff --git a/turtle2d/src/jogamp/graph/font/JavaFontLoader.java b/turtle2d/src/jogamp/graph/font/JavaFontLoader.java
new file mode 100644
index 000000000..33505e797
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/JavaFontLoader.java
@@ -0,0 +1,129 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font;
+
+import com.jogamp.common.util.IntObjectHashMap;
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.font.FontSet;
+import com.jogamp.graph.font.FontFactory;
+
+public class JavaFontLoader implements FontSet {
+    
+    final static FontSet fontLoader = new JavaFontLoader();
+
+    public static FontSet get() {
+        return fontLoader;
+    }
+    
+    final static String availableFontFileNames[] =
+    {
+        /* 00 */ "LucidaBrightRegular.ttf",
+        /* 01 */ "LucidaBrightItalic.ttf",
+        /* 02 */ "LucidaBrightDemiBold.ttf",
+        /* 03 */ "LucidaBrightDemiItalic.ttf",
+        /* 04 */ "LucidaSansRegular.ttf",
+        /* 05 */ "LucidaSansDemiBold.ttf",
+        /* 06 */ "LucidaTypewriterRegular.ttf",
+        /* 07 */ "LucidaTypewriterBold.ttf",
+    };
+        
+    final String javaFontPath;
+    
+    private JavaFontLoader() {
+        javaFontPath = System.getProperty("java.home") + "/lib/fonts/";
+    }
+
+    // FIXME: Add cache size to limit memory usage 
+    static final IntObjectHashMap fontMap = new IntObjectHashMap();
+    
+    static boolean is(int bits, int bit) {
+        return 0 != ( bits & bit ) ;
+    }
+    
+    public Font getDefault() {
+        return get(FAMILY_REGULAR, 0) ; // Sans Serif Regular 
+    }
+    
+	public Font get(int family, int style)	{
+        Font font = (Font)fontMap.get( ( family << 8 ) | style );
+        if (font != null) {
+            return font;
+        }
+
+        // 1st process Sans Serif (2 fonts)
+        if( is(style, STYLE_SERIF) ) {                
+            if( is(style, STYLE_BOLD) ) {                
+                font = abspath(availableFontFileNames[5], family, style);
+            } else {
+                font = abspath(availableFontFileNames[4], family, style);
+            }
+            fontMap.put( ( family << 8 ) | style, font );
+            return font;
+        }
+        
+        // Serif Fonts ..
+        switch (family) {
+            case FAMILY_LIGHT:
+            case FAMILY_MEDIUM:
+            case FAMILY_CONDENSED:
+            case FAMILY_REGULAR:
+                if( is(style, STYLE_BOLD) ) {                
+                    if( is(style, STYLE_ITALIC) ) {                
+                        font = abspath(availableFontFileNames[3], family, style);
+                    } else {
+                        font = abspath(availableFontFileNames[2], family, style);
+                    }
+                } else if( is(style, STYLE_ITALIC) ) {                
+                    font = abspath(availableFontFileNames[1], family, style);
+                } else {
+                    font = abspath(availableFontFileNames[0], family, style);
+                }
+                break;
+                
+            case FAMILY_MONOSPACED:
+                if( is(style, STYLE_BOLD) ) {                
+                    font = abspath(availableFontFileNames[7], family, style);
+                } else {
+                    font = abspath(availableFontFileNames[6], family, style);
+                }
+                break;                
+        }
+
+        return font;
+    }
+	
+    Font abspath(String fname, int family, int style) {
+        final Font f = FontFactory.getFontConstr().create(javaFontPath+fname);
+        if(null != f) {
+            fontMap.put( ( family << 8 ) | style, f );
+        }
+        return f;
+        
+    }   
+	
+}
diff --git a/turtle2d/src/jogamp/graph/font/UbuntuFontLoader.java b/turtle2d/src/jogamp/graph/font/UbuntuFontLoader.java
new file mode 100644
index 000000000..e09ea85e5
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/UbuntuFontLoader.java
@@ -0,0 +1,132 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font;
+
+import com.jogamp.common.util.IntObjectHashMap;
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.font.FontSet;
+import com.jogamp.graph.font.FontFactory;
+import com.jogamp.opengl.util.Locator;
+
+public class UbuntuFontLoader implements FontSet {
+    
+    final static FontSet fontLoader = new UbuntuFontLoader();
+
+    public static FontSet get() {
+        return fontLoader;
+    }
+    
+    final static String availableFontFileNames[] =
+    {
+        /* 00 */ "Ubuntu-R.ttf",   // regular
+        /* 01 */ "Ubuntu-RI.ttf",  // regular italic
+        /* 02 */ "Ubuntu-B.ttf",   // bold     
+        /* 03 */ "Ubuntu-BI.ttf",  // bold italic
+        /* 04 */ "Ubuntu-L.ttf",   // light
+        /* 05 */ "Ubuntu-LI.ttf",  // light italic
+        /* 06 */ "Ubuntu-M.ttf",   // medium
+        /* 07 */ "Ubuntu-MI.ttf",  // medium italic
+
+    };
+        
+    final static String relPath = "fonts/ubuntu/" ;
+    
+    private UbuntuFontLoader() {
+    }
+
+    // FIXME: Add cache size to limit memory usage 
+    static final IntObjectHashMap fontMap = new IntObjectHashMap();
+        
+    static boolean is(int bits, int bit) {
+        return 0 != ( bits & bit ) ;
+    }
+    
+    public Font getDefault() {
+        return get(FAMILY_REGULAR, 0) ; // Sans Serif Regular 
+    }
+    
+	public Font get(int family, int style)
+	{
+        Font font = (Font)fontMap.get( ( family << 8 ) | style );
+        if (font != null) {
+            return font;
+        }
+
+        switch (family) {
+            case FAMILY_MONOSPACED:
+            case FAMILY_CONDENSED:
+            case FAMILY_REGULAR:
+                if( is(style, STYLE_BOLD) ) {
+                    if( is(style, STYLE_ITALIC) ) {
+                        font = abspath(availableFontFileNames[3], family, style);
+                    } else {
+                        font = abspath(availableFontFileNames[2], family, style);
+                    }
+                } else if( is(style, STYLE_ITALIC) ) {
+                    font = abspath(availableFontFileNames[1], family, style);
+                } else {
+                    font = abspath(availableFontFileNames[0], family, style);
+                }
+                break;
+                
+            case FAMILY_LIGHT:
+                if( is(style, STYLE_ITALIC) ) {
+                    font = abspath(availableFontFileNames[5], family, style);
+                } else {
+                    font = abspath(availableFontFileNames[4], family, style);
+                }
+                break;
+                
+            case FAMILY_MEDIUM:
+                if( is(style, STYLE_ITALIC) ) {
+                    font = abspath(availableFontFileNames[6], family, style);
+                } else {
+                    font = abspath(availableFontFileNames[7], family, style);
+                }
+                break;                
+        }
+
+        return font;
+    }
+	
+    Font abspath(String fname) {
+        return FontFactory.getFontConstr().create(        
+                Locator.getResource(UbuntuFontLoader.class, relPath+fname).getPath() );
+    }
+    
+    Font abspath(String fname, int family, int style) {
+        final Font f = FontFactory.getFontConstr().create(        
+                Locator.getResource(UbuntuFontLoader.class, relPath+fname).getPath() );
+        if(null != f) {
+            fontMap.put( ( family << 8 ) | style, f );
+        }
+        return f;        
+    }   
+    
+	
+}
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/CONTRIBUTING.txt b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/CONTRIBUTING.txt
new file mode 100644
index 000000000..15bdc0c0b
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/CONTRIBUTING.txt
@@ -0,0 +1,21 @@
+The Ubuntu Font Family is very long-term endeavour, and the first time
+that a professionally-designed font has been funded specifically with
+the intent of being an on-going community expanded project:
+
+  http://font.ubuntu.com/
+
+Development of the Ubuntu Font Family is undertaken on Launchpad:
+
+  http://launchpad.net/ubuntu-font-family/
+
+and this is where milestones, bug management and releases are handled.
+
+Contributions are welcomed.  Your work will be used on millions of
+computers every single day!  Following the initial bootstrapping of
+Latin, Cyrillic, Greek, Arabic and Hebrew expansion will be undertaken
+by font designers from the font design and Ubuntu communities.
+
+To ensure that the Ubuntu Font Family can be re-licensed to future
+widely-used libre font licences, copyright assignment is being required:
+
+  https://launchpad.net/~uff-contributors
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/FONTLOG.txt b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/FONTLOG.txt
new file mode 100644
index 000000000..cf0e4c111
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/FONTLOG.txt
@@ -0,0 +1,211 @@
+This is the FONTLOG file for the Ubuntu Font Family and attempts to follow
+the recommendations at:  http://scripts.sil.org/OFL-FAQ_web#43cecb44
+
+
+Overview
+
+The new Ubuntu Font Family was started to enable the personality of
+Ubuntu to be seen and felt in every menu, button and dialog.
+The typeface is sans-serif, uses OpenType features and is manually
+hinted for clarity on desktop and mobile computing screens.
+
+The scope of the Ubuntu Font Family includes all the languages used by
+the various Ubuntu users around the world in tune with Ubuntu's
+philosophy which states that every user should be able to use their
+software in the language of their choice. So the Ubuntu Font Family
+project will be extended to cover many more written languages.
+
+
+History
+
+The Ubuntu Font Family has been creating during 2010.  As of December 2010
+coverage is provided for Latin, Cyrillic and Greek across Regular, Italic,
+Bold and Bold-Italic.
+
+
+ChangeLog
+
+2010-03-08 (Paul Sladen) Ubuntu Font Family version 0.71.2
+
+  * (Production) Adjust Medium WeightClass to 500 (Md, MdIt) (LP: #730912)
+
+2010-03-07 (Paul Sladen) Ubuntu Font Family version 0.71.1
+
+  * (Design) Add Capitalised version of glyphs and kern. (Lt, LtIt,
+    Md, MdIt) DM (LP: #677446)
+  * (Design) Re-space and tighen Regular and Italic by amount specified
+    by Mark Shuttleworth (minus 4 FUnits). (Rg, It) (LP: #677149)
+  * (Design) Design: Latin (U+0192) made straight more like l/c f with
+    tail (LP: #670768)
+  * (Design) (U+01B3) should have hook on right, as the lowercase
+    (U+01B4) (LP: #681026)
+  * (Design) Tail of Light Italic germandbls, longs and lowercase 'f'
+    to match Italic/BoldItalic (LP: #623925)
+  * (Production) Update <case> feature (Lt, LtIt, Md, MdIt). DM
+    (LP: #676538, #676539)
+  * (Production) Remove Bulgarian locl feature for Italics. (LP: #708578)
+  * (Production) Update Description information with new string:
+      "The Ubuntu Font Family are libre fonts funded by Canonical Ltd
+      on behalf of the Ubuntu project. The font design work and
+      technical implementation is being undertaken by Dalton Maag. The
+      typeface is sans-serif, uses OpenType features and is manually
+      hinted for clarity on desktop and mobile computing screens. The
+      scope of the Ubuntu Font Family includes all the languages used
+      by the various Ubuntu users around the world in tune with
+      Ubuntu's philosophy which states that every user should be able
+      to use their software in the language of their choice. The
+      project is ongoing, and we expect the family will be extended to
+      cover many written languages in the coming years."
+    (Rg, It, Bd, BdIt, Lt, LtIt, Md, MdIt) (LP: #690590)
+  * (Production) Pixel per em indicator added at U+F000 (Lt, LtIt, Md,
+    MdIt) (LP: #615787)
+  * (Production) Version number indicator added at U+EFFD (Lt, LtIt, Md,
+    MdIt) (LP: #640623)
+  * (Production) fstype bit set to 0 - Editable (Lt, LtIt, Md, MdIt)
+    (LP: #648406)
+  * (Production) Localisation of name table has been removed because
+    of problems with Mac OS/X interpretation of localisation. DM
+    (LP: #730785)
+  * (Hinting) Regular '?' dot non-circular (has incorrect control
+    value). (LP: #654336)
+  * (Hinting) Too much space after latin capital 'G' in 13pt
+    regular. Now reduced. (LP: #683437)
+  * (Hinting) Balance Indian Rupee at 18,19pt (LP: #662177)
+  * (Hinting) Make Regular '£' less ambiguous at 13-15 ppm (LP: #685562)
+  * (Hinting) Regular capital 'W' made symmetrical at 31 ppem (LP: #686168)
+
+2010-12-14 (Paul Sladen) Ubuntu Font Family version 0.70.1
+
+  Packaging, rebuilt from '2010-12-08 UbuntuFontsSourceFiles_070.zip':
+  * (Midstream) Fstype bit != 0 (LP: #648406)
+  * (Midstream) Add unit test to validate fstype bits (LP: #648406)
+  * (Midstream) Add unit test to validate licence
+
+2010-12-14 (Paul Sladen) Ubuntu Font Family version 0.70
+
+  Release notes 0.70:
+  * (Design) Add Capitalised version of glyphs and kern. (Rg, It, Bd,
+    BdIt) DM (LP: #676538, #677446)
+  * (Design) Give acute and grave a slight upright move to more match
+    the Hungarian double acute angle. (Rg, It, Bd, BdIt) (LP: #656647)
+  * (Design) Shift Bold Italic accent glyphs to be consistent with the
+    Italic. (BdIt only) DM (LP: #677449)
+  * (Design) Check spacing and kerning of dcaron, lcaron and
+    tcaron. (Rg, It, Bd, BdIt) (LP: #664722)
+  * (Design) Add positive kerning to () {} [] to open out the
+    combinations so they are less like a closed box. (Rg, It, Bd,
+    BdIt) (LP: #671228)
+  * (Design) Change design of acute.asc and check highest points (Bd
+    and BdIt only) DM
+  * (Production) Update <case> feature. DM (LP: #676538, #676539)
+  * (Production) Remove Romanian locl feature. (Rg, It, Bd, BdIt)
+    (LP: #635615)
+  * (Production) Update Copyright information with new
+    strings. "Copyright 2010 Canonical Ltd. Licensed under the Ubuntu
+    Font Licence 1.0" Trademark string "Ubuntu and Canonical are
+    registered trademarks of Canonical Ltd." (Rg, It, Bd, BdIt) DM
+    (LP: #677450)
+  * (Design) Check aligning of hyphen, math signs em, en, check braces
+    and other brackets. 16/11 (LP: #676465)
+  * (Production) Pixel per em indicator added at U+F000 (Rg, It, Bd,
+    BdIt) (LP: #615787)
+  * (Production) Version number indicator added at U+EFFD (Rg, It, Bd,
+    BdIt) (LP: #640623)
+  * (Production) fstype bit set to 0 - Editable (Rg, It, Bd, BdIt)
+    (LP: #648406)
+
+2010-10-05 (Paul Sladen) Ubuntu Font Family version 0.69
+
+  [Dalton Maag]
+  * Italic,
+    - Hinting on lowercase Italic l amended 19ppm (LP: #632451)
+    - Hinting on lowercase Italic u amended 12ppm (LP: #626376)
+
+  * Regular, Italic, Bold, BoldItalic
+    - New Rupee Sign added @ U+20B9 (LP: #645987)
+    - Ubuntu Roundel added @ U+E0FF (LP: #651606)
+
+  [Paul Sladen]
+  * All
+    - Removed "!ubu" GSUB.calt ligature for U+E0FF (LP: #651606)
+
+
+Acknowledgements
+
+If you make modifications be sure to add your name (N), email (E),
+web-address (if you have one) (W) and description (D). This list is in
+alphabetical order.
+
+N: Amélie Bonet
+W: http://ameliebonet.com/
+D: Type design with Dalton Maag, particularly Ubuntu Mono
+
+N: Ron Carpenter
+N: Vincent Connare
+N: Lukas Paltram
+W: http://www.daltonmaag.com/
+D: Type design and engineering with Dalton Maag
+
+N: Dave Crossland
+E: [email protected]
+W: http://understandingfonts.com/
+D: Documentation and libre licensing guidance
+
+N: Iain Farrell
+W: http://www.flickr.com/photos/iain
+D: Ubuntu Font Family delivery for the Ubuntu UX team
+
+N: Shiraaz Gabru
+W: http://www.daltonmaag.com/
+D: Ubuntu Font Family project management at Dalton Maag
+
+N: Marcus Haslam
+W: http://design.canonical.com/author/marcus-haslam/
+D: Creative inspiration
+
+N: Ben Laenen
+D: Inspiration behind the pixels-per-em (PPEM) readout debugging glyph at U+F000
+   (for this font the concept was re-implemented from scratch by Dalton-Maag)
+
+N: Bruno Maag
+W: http://www.daltonmaag.com/
+D: Stylistic direction of the Ubuntu Font Family, as head of Dalton Maag
+
+N: Ivanka Majic
+W: http://www.ivankamajic.com/
+D: Guiding the UX team and Cyrillic feedback
+
+N: David Marshall
+N: Malcolm Wooden
+W: http://www.daltonmaag.com/
+D: Font Engineering and technical direction
+
+N: Rodrigo Rivas
+D: Indian Rupee Sign glyph
+
+N: Mark Shuttleworth
+E: [email protected]
+W: http://www.markshuttleworth.com/
+D: Executive quality-control and funding
+
+N: Paul Sladen
+E: [email protected]
+W: http://www.paul.sladen.org/
+D: Bug triaging, packaging
+
+N: Nicolas Spalinger
+W: http://planet.open-fonts.org
+D: Continuous guidance on libre/open font licensing, best practises in source
+   tree layout, release and packaging (pkg-fonts Debian team)
+
+N: Kenneth Wimer
+D: Initial PPA packaging
+
+* Canonical Ltd is the primary commercial sponsor of the Ubuntu and
+  Kubuntu operating systems
+* Dalton Maag are a custom type foundry headed by Bruno Maag
+
+For further documentation, information on contributors, source code
+downloads and those involved with the Ubuntu Font Family, visit:
+
+  http://font.ubuntu.com/
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/LICENCE-FAQ.txt b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/LICENCE-FAQ.txt
new file mode 100644
index 000000000..776a25edf
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/LICENCE-FAQ.txt
@@ -0,0 +1,177 @@
+                        Ubuntu Font Family Licensing FAQ
+
+  Stylistic Foundations
+
+   The Ubuntu Font Family is the first time that a libre typeface has been
+   designed professionally and explicitly with the intent of developing a
+   public and long-term community-based development process.
+
+   When developing an open project, it is generally necessary to have firm
+   foundations: a font needs to maintain harmony within itself even across
+   many type designers and writing systems. For the [1]Ubuntu Font Family,
+   the process has been guided with the type foundry Dalton Maag setting
+   the project up with firm stylistic foundation covering several
+   left-to-right scripts: Latin, Greek and Cyrillic; and right-to-left
+   scripts: Arabic and Hebrew (due in 2011).
+
+   With this starting point the community will, under the supervision of
+   [2]Canonical and [3]Dalton Maag, be able to build on the existing font
+   sources to expand their character coverage. Ultimately everybody will
+   be able to use the Ubuntu Font Family in their own written languages
+   across the whole of Unicode (and this will take some time!).
+
+  Licensing
+
+   The licence chosen by any free software project is one of the
+   foundational decisions that sets out how derivatives and contributions
+   can occur, and in turn what kind of community will form around the
+   project.
+
+   Using a licence that is compatible with other popular licences is a
+   powerful constraint because of the [4]network effects: the freedom to
+   share improvements between projects allows free software to reach
+   high-quality over time. Licence-proliferation leads to many
+   incompatible licences, undermining the network effect, the freedom to
+   share and ultimately making the libre movement that Ubuntu is a part of
+   less effective. For all kinds of software, writing a new licence is not
+   to be taken lightly and is a choice that needs to be thoroughly
+   justified if this path is taken.
+
+   Today it is not clear to Canonical what the best licence for a font
+   project like the Ubuntu Font Family is: one that starts life designed
+   by professionals and continues with the full range of community
+   development, from highly commercial work in new directions to curious
+   beginners' experimental contributions. The fast and steady pace of the
+   Ubuntu release cycle means that an interim libre licence has been
+   necessary to enable the consideration of the font family as part of
+   Ubuntu 10.10 operating system release.
+
+   Before taking any decision on licensing, Canonical as sponsor and
+   backer of the project has reviewed the many existing licenses used for
+   libre/open fonts and engaged the stewards of the most popular licenses
+   in detailed discussions. The current interim licence is the first step
+   in progressing the state-of-the-art in licensing for libre/open font
+   development.
+
+   The public discussion must now involve everyone in the (comparatively
+   new) area of the libre/open font community; including font users,
+   software freedom advocates, open source supporters and existing libre
+   font developers. Most importantly, the minds and wishes of professional
+   type designers considering entering the free software business
+   community must be taken on board.
+
+   Conversations and discussion has taken place, privately, with
+   individuals from the following groups (generally speaking personally on
+   behalf of themselves, rather than their affiliations):
+     * [5]SIL International
+     * [6]Open Font Library
+     * [7]Software Freedom Law Center
+     * [8]Google Font API
+
+    Document embedding
+
+   One issue highlighted early on in the survey of existing font licences
+   is that of document embedding. Almost all font licences, both free and
+   unfree, permit embedding a font into a document to a certain degree.
+   Embedding a font with other works that make up a document creates a
+   "combined work" and copyleft would normally require the whole document
+   to be distributed under the terms of the font licence. As beautiful as
+   the font might be, such a licence makes a font too restrictive for
+   useful general purpose digital publishing.
+
+   The situation is not entirely unique to fonts and is encountered also
+   with tools such as GNU Bison: a vanilla GNU GPL licence would require
+   anything generated with Bison to be made available under the terms of
+   the GPL as well. To avoid this, Bison is [9]published with an
+   additional permission to the GPL which allows the output of Bison to be
+   made available under any licence.
+
+   The conflict between licensing of fonts and licensing of documents, is
+   addressed in two popular libre font licences, the SIL OFL and GNU GPL:
+     * [10]SIL Open Font Licence: When OFL fonts are embedded in a
+       document, the OFL's terms do not apply to that document. (See
+       [11]OFL-FAQ for details.
+     * [12]GPL Font Exception: The situation is resolved by granting an
+       additional permission to allow documents to not be covered by the
+       GPL. (The exception is being reviewed).
+
+   The Ubuntu Font Family must also resolve this conflict, ensuring that
+   if the font is embedded and then extracted it is once again clearly
+   under the terms of its libre licence.
+
+    Long-term licensing
+
+   Those individuals involved, especially from Ubuntu and Canonical, are
+   interested in finding a long-term libre licence that finds broad favour
+   across the whole libre/open font community. The deliberation during the
+   past months has been on how to licence the Ubuntu Font Family in the
+   short-term, while knowingly encouraging everyone to pursue a long-term
+   goal.
+     * [13]Copyright assignment will be required so that the Ubuntu Font
+       Family's licensing can be progressively expanded to one (or more)
+       licences, as best practice continues to evolve within the
+       libre/open font community.
+     * Canonical will support and fund legal work on libre font licensing.
+       It is recognised that the cost and time commitments required are
+       likely to be significant. We invite other capable parties to join
+       in supporting this activity.
+
+   The GPL version 3 (GPLv3) will be used for Ubuntu Font Family build
+   scripts and the CC-BY-SA for associated documentation and non-font
+   content: all items which do not end up embedded in general works and
+   documents.
+
+Ubuntu Font Licence
+
+   For the short-term only, the initial licence is the [14]Ubuntu Font
+   License (UFL). This is loosely inspired from the work on the SIL
+   OFL 1.1, and seeks to clarify the issues that arose during discussions
+   and legal review, from the perspective of the backers, Canonical Ltd.
+   Those already using established licensing models such as the GPL, OFL
+   or Creative Commons licensing should have no worries about continuing
+   to use them. The Ubuntu Font Licence (UFL) and the SIL Open Font
+   Licence (SIL OFL) are not identical and should not be confused with
+   each other. Please read the terms precisely. The UFL is only intended
+   as an interim license, and the overriding aim is to support the
+   creation of a more suitable and generic libre font licence. As soon as
+   such a licence is developed, the Ubuntu Font Family will migrate to
+   it—made possible by copyright assignment in the interium. Between the
+   OFL 1.1, and the UFL 1.0, the following changes are made to produce the
+   Ubuntu Font Licence:
+     * Clarification:
+
+    1. Document embedding (see [15]embedding section above).
+    2. Apply at point of distribution, instead of receipt
+    3. Author vs. copyright holder disambiguation (type designers are
+       authors, with the copyright holder normally being the funder)
+    4. Define "Propagate" (for internationalisation, similar to the GPLv3)
+    5. Define "Substantially Changed"
+    6. Trademarks are explicitly not transferred
+    7. Refine renaming requirement
+
+     Streamlining:
+    8. Remove "not to be sold separately" clause
+    9. Remove "Reserved Font Name(s)" declaration
+
+   A visual demonstration of how these points were implemented can be
+   found in the accompanying coloured diff between SIL OFL 1.1 and the
+   Ubuntu Font Licence 1.0: [16]ofl-1.1-ufl-1.0.diff.html
+
+References
+
+   1. http://font.ubuntu.com/
+   2. http://www.canonical.com/
+   3. http://www.daltonmaag.com/
+   4. http://en.wikipedia.org/wiki/Network_effect
+   5. http://scripts.sil.org/
+   6. http://openfontlibrary.org/
+   7. http://www.softwarefreedom.org/
+   8. http://code.google.com/webfonts
+   9. http://www.gnu.org/licenses/gpl-faq.html#CanIUseGPLToolsForNF
+  10. http://scripts.sil.org/OFL_web
+  11. http://scripts.sil.org/OFL-FAQ_web
+  12. http://www.gnu.org/licenses/gpl-faq.html#FontException
+  13. https://launchpad.net/~uff-contributors
+  14. http://font.ubuntu.com/ufl/ubuntu-font-licence-1.0.txt
+  15. http://font.ubuntu.com/ufl/FAQ.html#embedding
+  16. http://font.ubuntu.com/ufl/ofl-1.1-ufl-1.0.diff.html
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/LICENCE.txt b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/LICENCE.txt
new file mode 100644
index 000000000..ae78a8f94
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/LICENCE.txt
@@ -0,0 +1,96 @@
+-------------------------------
+UBUNTU FONT LICENCE Version 1.0
+-------------------------------
+
+PREAMBLE
+This licence allows the licensed fonts to be used, studied, modified and
+redistributed freely. The fonts, including any derivative works, can be
+bundled, embedded, and redistributed provided the terms of this licence
+are met. The fonts and derivatives, however, cannot be released under
+any other licence. The requirement for fonts to remain under this
+licence does not require any document created using the fonts or their
+derivatives to be published under this licence, as long as the primary
+purpose of the document is not to be a vehicle for the distribution of
+the fonts.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this licence and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Original Version" refers to the collection of Font Software components
+as received under this licence.
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to
+a new environment.
+
+"Copyright Holder(s)" refers to all individuals and companies who have a
+copyright ownership of the Font Software.
+
+"Substantially Changed" refers to Modified Versions which can be easily
+identified as dissimilar to the Font Software by users of the Font
+Software comparing the Original Version with the Modified Version.
+
+To "Propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification and with or without charging
+a redistribution fee), making available to the public, and in some
+countries other activities as well.
+
+PERMISSION & CONDITIONS
+This licence does not grant any rights under trademark law and all such
+rights are reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of the Font Software, to propagate the Font Software, subject to
+the below conditions:
+
+1) Each copy of the Font Software must contain the above copyright
+notice and this licence. These can be included either as stand-alone
+text files, human-readable headers or in the appropriate machine-
+readable metadata fields within text or binary files as long as those
+fields can be easily viewed by the user.
+
+2) The font name complies with the following:
+(a) The Original Version must retain its name, unmodified.
+(b) Modified Versions which are Substantially Changed must be renamed to
+avoid use of the name of the Original Version or similar names entirely.
+(c) Modified Versions which are not Substantially Changed must be
+renamed to both (i) retain the name of the Original Version and (ii) add
+additional naming elements to distinguish the Modified Version from the
+Original Version. The name of such Modified Versions must be the name of
+the Original Version, with "derivative X" where X represents the name of
+the new work, appended to that name.
+
+3) The name(s) of the Copyright Holder(s) and any contributor to the
+Font Software shall not be used to promote, endorse or advertise any
+Modified Version, except (i) as required by this licence, (ii) to
+acknowledge the contribution(s) of the Copyright Holder(s) or (iii) with
+their explicit written permission.
+
+4) The Font Software, modified or unmodified, in part or in whole, must
+be distributed entirely under this licence, and must not be distributed
+under any other licence. The requirement for fonts to remain under this
+licence does not affect any document created using the Font Software,
+except any version of the Font Software extracted from a document
+created using the Font Software may only be distributed under this
+licence.
+
+TERMINATION
+This licence becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
+COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM OTHER
+DEALINGS IN THE FONT SOFTWARE.
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/README.txt b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/README.txt
new file mode 100644
index 000000000..292d4ade6
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/README.txt
@@ -0,0 +1,15 @@
+ ----------------------
+  Ubuntu Font Family
+ ======================
+
+The Ubuntu Font Family are a set of matching new libre/open fonts in
+development during 2010--2011. The development is being funded by
+Canonical Ltd on behalf the wider Free Software community and the
+Ubuntu project.  The technical font design work and implementation is
+being undertaken by Dalton Maag.
+
+Both the final font Truetype/OpenType files and the design files used
+to produce the font family are distributed under an open licence and
+you are expressly encouraged to experiment, modify, share and improve.
+
+  http://font.ubuntu.com/
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/TRADEMARKS.txt b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/TRADEMARKS.txt
new file mode 100644
index 000000000..d34265bc8
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/TRADEMARKS.txt
@@ -0,0 +1,4 @@
+Ubuntu and Canonical are registered trademarks of Canonical Ltd.
+
+The licence accompanying these works does not grant any rights
+under trademark law and all such rights are reserved.
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-B.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-B.ttf
new file mode 100644
index 000000000..7639344e7
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-B.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-BI.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-BI.ttf
new file mode 100644
index 000000000..337b8a88b
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-BI.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-L.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-L.ttf
new file mode 100644
index 000000000..c3b0fa46d
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-L.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-LI.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-LI.ttf
new file mode 100644
index 000000000..d65e8eab3
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-LI.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-M.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-M.ttf
new file mode 100644
index 000000000..387ef03fc
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-M.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-MI.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-MI.ttf
new file mode 100644
index 000000000..5b92fcb5d
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-MI.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-R.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-R.ttf
new file mode 100644
index 000000000..a46446440
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-R.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-RI.ttf b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-RI.ttf
new file mode 100644
index 000000000..0e0955918
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/Ubuntu-RI.ttf
diff --git a/turtle2d/src/jogamp/graph/font/fonts/ubuntu/copyright.txt b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/copyright.txt
new file mode 100644
index 000000000..3a45d712e
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/fonts/ubuntu/copyright.txt
@@ -0,0 +1,5 @@
+Copyright 2010 Canonical Ltd.
+
+This Font Software is licensed under the Ubuntu Font Licence, Version
+1.0.  https://launchpad.net/ubuntu-font-licence
+
diff --git a/turtle2d/src/jogamp/graph/font/typecast/TypecastFont.java b/turtle2d/src/jogamp/graph/font/typecast/TypecastFont.java
new file mode 100644
index 000000000..0d018a314
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/typecast/TypecastFont.java
@@ -0,0 +1,268 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font.typecast;
+
+import jogamp.graph.font.FontInt;
+import jogamp.graph.geom.plane.AffineTransform;
+import jogamp.graph.geom.plane.Path2D;
+import net.java.dev.typecast.ot.OTFont;
+import net.java.dev.typecast.ot.OTFontCollection;
+import net.java.dev.typecast.ot.table.CmapFormat;
+import net.java.dev.typecast.ot.table.CmapIndexEntry;
+import net.java.dev.typecast.ot.table.CmapTable;
+import net.java.dev.typecast.ot.table.HdmxTable;
+import net.java.dev.typecast.ot.table.ID;
+
+import com.jogamp.common.util.IntObjectHashMap;
+import com.jogamp.graph.geom.AABBox;
+
+class TypecastFont implements FontInt {
+	static final boolean DEBUG = false;
+	
+	final OTFontCollection fontset;
+	final OTFont font;
+    TypecastHMetrics metrics;
+    final CmapFormat cmapFormat;
+	int cmapentries;
+	
+    // FIXME: Add cache size to limit memory usage ??	
+    IntObjectHashMap char2Glyph; 
+
+    public TypecastFont(OTFontCollection fontset) {
+    	this.fontset = fontset;
+        this.font = fontset.getFont(0);
+        
+        // FIXME: Generic attempt to find the best CmapTable,
+        // which is assumed to be the one with the most entries (stupid 'eh?)
+    	CmapTable cmapTable = font.getCmapTable();
+        CmapFormat[] _cmapFormatP = { null, null, null, null };
+        int platform = -1;
+        int platformLength = -1;
+        int encoding = -1;
+    	for(int i=0; i<cmapTable.getNumTables(); i++) {
+    	    CmapIndexEntry cmapIdxEntry = cmapTable.getCmapIndexEntry(i);
+    	    int pidx = cmapIdxEntry.getPlatformId();
+    	    CmapFormat cf = cmapIdxEntry.getFormat();
+            if(DEBUG) {
+                System.err.println("CmapFormat["+i+"]: platform " + pidx + 
+                                   ", encoding "+cmapIdxEntry.getEncodingId() + ": "+cf);
+            }
+	        if( _cmapFormatP[pidx] == null || 
+	            _cmapFormatP[pidx].getLength() < cf.getLength() ) {
+	            _cmapFormatP[pidx] = cf;
+	            if( cf.getLength() > platformLength ) {
+	                platformLength = cf.getLength() ; 
+	                platform = pidx;
+	                encoding = cmapIdxEntry.getEncodingId();
+	            }
+	        }
+    	}
+        if(0 <= platform) {
+            cmapFormat = _cmapFormatP[platform];
+            if(DEBUG) {
+                System.err.println("Selected CmapFormat: platform " + platform + 
+                                   ", encoding "+encoding + ": "+cmapFormat);
+            }
+        } else {    	
+        	CmapFormat _cmapFormat = null;
+        	/*if(null == _cmapFormat) {
+                platform = ID.platformMacintosh;
+                encoding = ID.encodingASCII;
+        		_cmapFormat = cmapTable.getCmapFormat(platform, encoding);
+        	} */
+        	if(null == _cmapFormat) {
+        		// default unicode
+        	    platform = ID.platformMicrosoft;
+        	    encoding = ID.encodingUnicode;
+        	    _cmapFormat = cmapTable.getCmapFormat((short)platform, (short)encoding);
+        	}
+        	if(null == _cmapFormat) {
+        		// maybe a symbol font ?
+                platform = ID.platformMicrosoft;
+                encoding = ID.encodingSymbol;
+                _cmapFormat = cmapTable.getCmapFormat((short)platform, (short)encoding);
+        	}
+        	if(null == _cmapFormat) {
+        		throw new RuntimeException("Cannot find a suitable cmap table for font "+font);
+        	}
+            cmapFormat = _cmapFormat;
+            if(DEBUG) {
+                System.err.println("Selected CmapFormat (2): platform " + platform + ", encoding "+encoding + ": "+cmapFormat);
+            }
+        }
+
+    	cmapentries = 0;
+        for (int i = 0; i < cmapFormat.getRangeCount(); ++i) {
+            CmapFormat.Range range = cmapFormat.getRange(i);
+            cmapentries += range.getEndCode() - range.getStartCode() + 1; // end included 
+        }    	
+        if(DEBUG) {
+        	System.err.println("num glyphs: "+font.getNumGlyphs());
+        	System.err.println("num cmap entries: "+cmapentries);
+        	System.err.println("num cmap ranges: "+cmapFormat.getRangeCount());
+        
+            for (int i = 0; i < cmapFormat.getRangeCount(); ++i) {
+                CmapFormat.Range range = cmapFormat.getRange(i);
+                for (int j = range.getStartCode(); j <= range.getEndCode(); ++j) {
+                	final int code = cmapFormat.mapCharCode(j);
+                	if(code < 15) {
+                		System.err.println(" char: " + (int)j + " ( " + (char)j +" ) -> " + code);
+                	}
+                }
+            }
+        }
+        char2Glyph = new IntObjectHashMap(cmapentries + cmapentries/4);
+    }
+
+    public String getName() {
+        return fontset.getFileName();
+    }
+
+    public Metrics getMetrics() {
+        if (metrics == null) {
+            metrics = new TypecastHMetrics(this);
+        }
+        return metrics;
+    }
+
+    public Glyph getGlyph(char symbol) {
+    	TypecastGlyph result = (TypecastGlyph) char2Glyph.get(symbol);    	
+        if (null == result) {
+        	// final short code = (short) char2Code.get(symbol);
+            short code = (short) cmapFormat.mapCharCode(symbol);
+            if(0 == code && 0 != symbol) {
+                // reserved special glyph IDs by convention
+                switch(symbol) {
+                    case ' ':  code = Glyph.ID_SPACE; break;
+                    case '\n': code = Glyph.ID_CR; break;
+                    default:   code = Glyph.ID_UNKNOWN;
+                }
+            }
+            
+        	net.java.dev.typecast.ot.OTGlyph glyph = font.getGlyph(code);
+        	if(null == glyph) {
+        	    glyph = font.getGlyph(Glyph.ID_UNKNOWN);
+        	}
+        	if(null == glyph) {
+        	    throw new RuntimeException("Could not retrieve glyph for symbol: <"+symbol+"> "+(int)symbol+" -> glyph id "+code);
+        	}
+        	Path2D path = TypecastRenderer.buildPath(glyph);
+        	result = new TypecastGlyph(this, symbol, code, glyph.getBBox(), glyph.getAdvanceWidth(), path);
+        	if(DEBUG) {
+        		System.err.println("New glyph: " + (int)symbol + " ( " + (char)symbol +" ) -> " + code + ", contours " + glyph.getPointCount() + ": " + path);
+        	}
+        	final HdmxTable hdmx = font.getHdmxTable();        	
+            if (null!= result && null != hdmx) {
+                /*if(DEBUG) {
+                    System.err.println("hdmx "+hdmx);
+                }*/
+                for (int i=0; i<hdmx.getNumberOfRecords(); i++)
+                {
+                    final HdmxTable.DeviceRecord dr = hdmx.getRecord(i); 
+                    result.addAdvance(dr.getWidth(code), dr.getPixelSize());
+                    if(DEBUG) {
+                        System.err.println("hdmx advance : pixelsize = "+dr.getWidth(code)+" : "+ dr.getPixelSize());
+                    }
+                }
+            }        	
+        	char2Glyph.put(symbol, result);
+        }
+        return result;
+    }
+
+    public void getOutline(String string, float pixelSize, AffineTransform transform, Path2D[] result) {
+    	TypecastRenderer.getOutline(this, string, pixelSize, transform, result);
+    }
+
+    public float getStringWidth(String string, float pixelSize) {
+        float width = 0;
+        final int len = string.length();
+        for (int i=0; i< len; i++)
+        {
+            char character = string.charAt(i);
+            if (character == '\n') {
+                width = 0;
+            } else {
+                Glyph glyph = getGlyph(character);
+                width += glyph.getAdvance(pixelSize, false);
+            }
+        }
+
+        return (int)(width + 0.5f);    	
+    }
+
+    public float getStringHeight(String string, float pixelSize) {
+        int height = 0;
+
+        for (int i=0; i<string.length(); i++)
+        {
+            char character = string.charAt(i);
+            if (character != ' ')
+            {
+                Glyph glyph = getGlyph(character);
+                AABBox bbox = glyph.getBBox(pixelSize);
+                height = (int)Math.ceil(Math.max(bbox.getHeight(), height));
+            }
+        }
+        return height;    	
+    }
+
+    public AABBox getStringBounds(CharSequence string, float pixelSize) {
+        if (string == null) {
+            return new AABBox();
+        }
+        final Metrics metrics = getMetrics();
+        final float lineGap = metrics.getLineGap(pixelSize);
+        final float ascent = metrics.getAscent(pixelSize);
+        final float descent = metrics.getDescent(pixelSize);
+        final float advanceY = lineGap - descent + ascent;
+        float totalHeight = 0;
+        float totalWidth = 0;
+        float curLineWidth = 0;
+        for (int i=0; i<string.length(); i++) {
+            char character = string.charAt(i);
+            if (character == '\n') {
+                totalWidth = Math.max(curLineWidth, totalWidth);
+                curLineWidth = 0;
+                totalHeight -= advanceY;
+                continue;
+            }
+            Glyph glyph = getGlyph(character);
+            curLineWidth += glyph.getAdvance(pixelSize, true);
+        }
+        if (curLineWidth > 0) {
+            totalHeight -= advanceY;
+            totalWidth = Math.max(curLineWidth, totalWidth);
+        }
+        return new AABBox(0, 0, 0, totalWidth, totalHeight,0);    	
+    }
+
+    final public int getNumGlyphs() {
+    	return font.getNumGlyphs();
+    }
+}
\ No newline at end of file
diff --git a/turtle2d/src/jogamp/graph/font/typecast/TypecastFontConstructor.java b/turtle2d/src/jogamp/graph/font/typecast/TypecastFontConstructor.java
new file mode 100644
index 000000000..5fb9d32f7
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/typecast/TypecastFontConstructor.java
@@ -0,0 +1,53 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font.typecast;
+
+import java.io.File;
+import java.io.IOException;
+
+import jogamp.graph.font.FontConstructor;
+
+import net.java.dev.typecast.ot.OTFontCollection;
+
+import com.jogamp.graph.font.Font;
+
+
+public class TypecastFontConstructor implements FontConstructor  {
+
+    public Font create(String path) {
+        OTFontCollection fontset;
+        try {
+            fontset = OTFontCollection.create(new File(path));
+            return new TypecastFont(fontset);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+    
+}
\ No newline at end of file
diff --git a/turtle2d/src/jogamp/graph/font/typecast/TypecastGlyph.java b/turtle2d/src/jogamp/graph/font/typecast/TypecastGlyph.java
new file mode 100644
index 000000000..88d865f9c
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/typecast/TypecastGlyph.java
@@ -0,0 +1,232 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font.typecast;
+
+import java.util.HashMap;
+
+import jogamp.graph.font.FontInt;
+import jogamp.graph.geom.plane.AffineTransform;
+import jogamp.graph.geom.plane.Path2D;
+
+import com.jogamp.graph.font.Font;
+import com.jogamp.graph.geom.AABBox;
+
+public class TypecastGlyph implements FontInt.Glyph {
+    public class Advance
+    {
+        final Font      font;
+        final float     advance; 
+        HashMap<Float, Float> size2advance = new HashMap<Float, Float>(); 
+		
+        public Advance(Font font, float advance)
+        {
+            this.font = font;
+            this.advance = advance;
+        }
+        
+        public void reset() {
+            size2advance.clear();
+        }
+        
+        public float getScale(float pixelSize)
+        {
+            return this.font.getMetrics().getScale(pixelSize);
+        }
+        
+        public void add(float advance, float size)
+        {
+            size2advance.put(size, advance);
+        }
+        
+        public float get(float size, boolean useFrationalMetrics)
+        {
+            Float fo = size2advance.get(size);
+            if(null == fo) {            
+                float value = (this.advance * getScale(size));
+                if (useFrationalMetrics == false) {
+                    //value = (float)Math.ceil(value);
+                    // value = (int)value;
+                    value = (int) ( value + 0.5f ) ; // TODO: check 
+                }
+                size2advance.put(size, value);
+                return value;
+            }
+            return fo.floatValue();
+        }
+        
+        public String toString()
+        {
+            return "\nAdvance:"+
+                "\n  advance: "+this.advance+
+                "\n advances: \n"+size2advance;
+        }
+    }
+	
+    public class Metrics
+    {
+    	AABBox	bbox;
+        Advance advance;
+		
+        public Metrics(Font font, AABBox bbox, float advance)
+        {
+            this.bbox = bbox;
+            this.advance = new Advance(font, advance);
+        }
+        
+        public void reset() {
+            advance.reset();
+        }
+        
+        public float getScale(float pixelSize)
+        {
+            return this.advance.getScale(pixelSize);
+        }
+        
+        public AABBox getBBox()
+        {
+            return this.bbox;
+        }
+        
+        public void addAdvance(float advance, float size)
+        {
+            this.advance.add(advance, size);
+        }
+        
+        public float getAdvance(float size, boolean useFrationalMetrics)
+        {
+            return this.advance.get(size, useFrationalMetrics);
+        }
+        
+        public String toString()
+        {
+            return "\nMetrics:"+
+                "\n  bbox: "+this.bbox+
+                this.advance;
+        }
+    }	
+
+    public static final short INVALID_ID    = (short)((1 << 16) - 1);
+    public static final short MAX_ID        = (short)((1 << 16) - 2);
+    
+    private final Font font;
+	    
+    char        symbol;
+    short       id;
+    int         advance;
+    Metrics     metrics;
+    
+    protected Path2D path; // in EM units
+    protected Path2D pathSized;
+    protected float numberSized;
+	
+    protected TypecastGlyph(Font font, char symbol) {
+    	this.font = font;
+        this.symbol = symbol;
+    }
+    
+    protected TypecastGlyph(Font font,
+    		                char symbol, short id, AABBox bbox, int advance, Path2D path) {
+    	this.font = font;
+        this.symbol = symbol;
+        this.advance = advance;
+        
+        init(id, bbox, advance);
+        
+        this.path = path;
+        this.pathSized = null;
+        this.numberSized = 0.0f;
+    }
+	
+    void init(short id, AABBox bbox, int advance) {
+        this.id = id;
+        this.advance = advance;
+        this.metrics = new Metrics(this.font, bbox, this.advance);
+    }
+    
+    public void reset(Path2D path) {
+        this.path = path;
+        this.metrics.reset();
+    }
+    
+    public Font getFont() {
+        return this.font;
+    }
+	
+    public char getSymbol() {
+        return this.symbol;
+    }
+	
+    AABBox getBBoxUnsized() {
+        return this.metrics.getBBox();
+    }
+    
+    public AABBox getBBox() {
+        return this.metrics.getBBox();
+    }
+    
+    public Metrics getMetrics() {
+        return this.metrics;
+    }
+	
+    public short getID() {
+        return this.id;
+    }
+	
+    public float getScale(float pixelSize) {
+        return this.metrics.getScale(pixelSize);
+    }
+	
+    public AABBox getBBox(float pixelSize) {
+        final float size = getScale(pixelSize);
+        AABBox newBox = getBBox().clone();
+        newBox.scale(size);
+        return newBox;        
+    }
+	
+    protected void addAdvance(float advance, float size) {
+        this.metrics.addAdvance(advance, size);
+    }
+    
+    public float getAdvance(float pixelSize, boolean useFrationalMetrics) {
+        return this.metrics.getAdvance(pixelSize, useFrationalMetrics);
+    }
+    
+    public Path2D getPath() {
+    	return this.path;
+    }
+    	
+    public Path2D getPath(float pixelSize) {
+        final float size = getScale(pixelSize);
+        
+        if (this.numberSized != size) {
+            this.numberSized = size;
+            this.pathSized = AffineTransform.getScaleInstance(null, size, size).createTransformedShape(getPath());
+        }        
+        return this.pathSized;
+    }    
+}
diff --git a/turtle2d/src/jogamp/graph/font/typecast/TypecastHMetrics.java b/turtle2d/src/jogamp/graph/font/typecast/TypecastHMetrics.java
new file mode 100644
index 000000000..cd8595498
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/typecast/TypecastHMetrics.java
@@ -0,0 +1,83 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font.typecast;
+
+import net.java.dev.typecast.ot.table.HeadTable;
+import net.java.dev.typecast.ot.table.HheaTable;
+import com.jogamp.graph.font.Font.Metrics;
+import com.jogamp.graph.geom.AABBox;
+
+class TypecastHMetrics implements Metrics {
+	private final TypecastFont fontImpl;
+	
+	// HeadTable
+    private final HeadTable headTable;
+	private final float unitsPerEM_Inv;
+	private final AABBox bbox;
+	// HheaTable
+	private final HheaTable hheaTable;
+    // VheaTable (for horizontal fonts)
+    // private final VheaTable vheaTable;
+	
+	public TypecastHMetrics(TypecastFont fontImpl) {
+		this.fontImpl = fontImpl;
+		headTable = this.fontImpl.font.getHeadTable();
+		hheaTable = this.fontImpl.font.getHheaTable();		
+		// vheaTable = this.fontImpl.font.getVheaTable();
+        unitsPerEM_Inv = 1.0f / ( (float) headTable.getUnitsPerEm() );
+        
+        int maxWidth = headTable.getXMax() - headTable.getXMin();
+        int maxHeight = headTable.getYMax() - headTable.getYMin();              
+        float lowx= headTable.getXMin();
+        float lowy = -(headTable.getYMin()+maxHeight);
+        float highx = lowx + maxWidth;
+        float highy = lowy + maxHeight;
+        bbox = new AABBox(lowx, lowy, 0, highx, highy, 0); // invert
+	}
+	    
+    public final float getAscent(float pixelSize) {
+        return getScale(pixelSize) * -hheaTable.getAscender(); // invert
+    }
+    public final float getDescent(float pixelSize) {
+        return getScale(pixelSize) * -hheaTable.getDescender(); // invert
+    }
+    public final float getLineGap(float pixelSize) {
+        return getScale(pixelSize) * -hheaTable.getLineGap(); // invert
+    }
+    public final float getMaxExtend(float pixelSize) {
+        return getScale(pixelSize) * hheaTable.getXMaxExtent();
+    }
+    public final float getScale(float pixelSize) {
+        return pixelSize * unitsPerEM_Inv;
+    }
+    public final AABBox getBBox(float pixelSize) {
+        AABBox res = new AABBox(bbox.getLow(), bbox.getHigh());
+        res.scale(getScale(pixelSize));        
+        return res;
+    }
+}
\ No newline at end of file
diff --git a/turtle2d/src/jogamp/graph/font/typecast/TypecastRenderer.java b/turtle2d/src/jogamp/graph/font/typecast/TypecastRenderer.java
new file mode 100644
index 000000000..410f5b73a
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/font/typecast/TypecastRenderer.java
@@ -0,0 +1,163 @@
+/**
+ * Copyright 2011 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ *    1. Redistributions of source code must retain the above copyright notice, this list of
+ *       conditions and the following disclaimer.
+ *
+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *       of conditions and the following disclaimer in the documentation and/or other materials
+ *       provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+package jogamp.graph.font.typecast;
+
+import jogamp.graph.geom.plane.AffineTransform;
+import jogamp.graph.geom.plane.Path2D;
+
+import com.jogamp.graph.font.Font;
+import net.java.dev.typecast.ot.Point;
+import net.java.dev.typecast.ot.OTGlyph;
+
+/**
+ * Factory to build a {@link com.jogamp.graph.geom.Path2D Path2D} from 
+ * {@link net.java.dev.typecast.ot.OTGlyph Glyph}s. 
+ */
+public class TypecastRenderer {
+
+	public static void getOutline(TypecastFont font, 
+			                      String string, float pixelSize, AffineTransform transform, Path2D[] p)
+	{		
+		if (string == null) {
+			return;
+		}
+		Font.Metrics metrics = font.getMetrics();
+		float advanceTotal = 0;
+		float lineGap = metrics.getLineGap(pixelSize) ;
+		float ascent = metrics.getAscent(pixelSize) ;
+		float descent = metrics.getDescent(pixelSize) ;
+		if (transform == null) {
+			transform = new AffineTransform();
+		}
+		AffineTransform t = new AffineTransform();
+
+		float advanceY = lineGap - descent + ascent;
+		float y = 0;
+		for (int i=0; i<string.length(); i++)
+		{
+			p[i] = new Path2D();
+			p[i].reset();
+			t.setTransform(transform);
+			char character = string.charAt(i);
+			if (character == '\n') {
+				y -= advanceY;
+				advanceTotal = 0;
+				continue;
+			} else if (character == ' ') {
+			    advanceTotal += font.font.getHmtxTable().getAdvanceWidth(TypecastGlyph.ID_SPACE) * metrics.getScale(pixelSize);
+                continue;
+            }        
+			TypecastGlyph glyph = (TypecastGlyph) font.getGlyph(character);
+			Path2D gp = glyph.getPath();
+			float scale = metrics.getScale(pixelSize);
+			t.translate(advanceTotal, y);
+			t.scale(scale, scale);
+			p[i].append(gp.iterator(t), false);
+			advanceTotal += glyph.getAdvance(pixelSize, true); 
+		}
+	}
+	
+    /**
+     * Build a {@link com.jogamp.graph.geom.Path2D Path2D} from a
+     * {@link net.java.dev.typecast.ot.OTGlyph Glyph}.  This glyph path can then
+     * be transformed and rendered.
+     */
+    public static Path2D buildPath(OTGlyph glyph) {
+        
+        if (glyph == null) {
+            return null;
+        }
+
+        Path2D glyphPath = new Path2D();
+
+        // Iterate through all of the points in the glyph.  Each time we find a
+        // contour end point, add the point range to the path.
+        int firstIndex = 0;
+        int count = 0;
+        for (int i = 0; i < glyph.getPointCount(); i++) {
+            count++;
+            if (glyph.getPoint(i).endOfContour) {
+                addContourToPath(glyphPath, glyph, firstIndex, count);
+                firstIndex = i + 1;
+                count = 0;
+            }
+        }
+        return glyphPath;
+    }
+    
+    private static void addContourToPath(Path2D gp, OTGlyph glyph, int startIndex, int count) {
+        int offset = 0;
+        while (offset < count) {
+            Point point = glyph.getPoint(startIndex + offset%count);
+            Point point_plus1 = glyph.getPoint(startIndex + (offset+1)%count);
+            Point point_plus2 = glyph.getPoint(startIndex + (offset+2)%count);
+        	if(offset == 0)
+            {
+                gp.moveTo(point.x, -point.y);
+            }
+        	
+        	if (point.onCurve) {
+	        	if (point_plus1.onCurve) {
+	                // s = new Line2D.Float(point.x, -point.y, point_plus1.x, -point_plus1.y);
+	                gp.lineTo( point_plus1.x, -point_plus1.y );
+	                offset++;	                
+	            } else {
+	            	if (point_plus2.onCurve) {
+		                // s = new QuadCurve2D.Float( point.x, -point.y, point_plus1.x, -point_plus1.y, point_plus2.x, -point_plus2.y);
+		                gp.quadTo(point_plus1.x, -point_plus1.y, point_plus2.x, -point_plus2.y);
+		                offset+=2;	                
+		            } else {
+		                // s = new QuadCurve2D.Float(point.x,-point.y,point_plus1.x,-point_plus1.y,
+		            	//                           midValue(point_plus1.x, point_plus2.x), -midValue(point_plus1.y, point_plus2.y));
+		                gp.quadTo(point_plus1.x, -point_plus1.y, midValue(point_plus1.x, point_plus2.x), -midValue(point_plus1.y, point_plus2.y));
+		                offset+=2;
+		            }
+	            }
+        	} else {
+        		if (point_plus1.onCurve) {
+	                // s = new QuadCurve2D.Float(midValue(point_minus1.x, point.x), -midValue(point_minus1.y, point.y),
+	                //                           point.x, -point.y, point_plus1.x, -point_plus1.y);
+	                //gp.curve3(point_plus1.x, -point_plus1.y, point.x, -point.y);
+	                gp.quadTo(point.x, -point.y, point_plus1.x, -point_plus1.y);
+	                offset++;
+    				
+    			} else {
+	                // s = new QuadCurve2D.Float(midValue(point_minus1.x, point.x), -midValue(point_minus1.y, point.y), point.x, -point.y,
+	                //                           midValue(point.x, point_plus1.x), -midValue(point.y, point_plus1.y));
+	                //gp.curve3(midValue(point.x, point_plus1.x), -midValue(point.y, point_plus1.y), point.x, -point.y);
+	                gp.quadTo(point.x, -point.y, midValue(point.x, point_plus1.x), -midValue(point.y, point_plus1.y));
+	                offset++;	                
+	            }
+        	}
+        }
+    }
+
+    private static int midValue(int a, int b) {
+        return a + (b - a)/2;
+    }
+}
diff --git a/turtle2d/src/jogamp/graph/geom/plane/AffineTransform.java b/turtle2d/src/jogamp/graph/geom/plane/AffineTransform.java
new file mode 100644
index 000000000..2ba9f8d06
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/geom/plane/AffineTransform.java
@@ -0,0 +1,580 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Denis M. Kishenko
+ */
+package jogamp.graph.geom.plane;
+
+import java.io.IOException;
+import java.io.Serializable;
+
+import jogamp.graph.math.MathFloat;
+import org.apache.harmony.misc.HashCode;
+
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.Vertex.Factory;
+
+public class AffineTransform implements Cloneable, Serializable {
+
+    private static final long serialVersionUID = 1330973210523860834L;
+
+    static final String determinantIsZero = "Determinant is zero";
+    
+    public static final int TYPE_IDENTITY = 0;
+    public static final int TYPE_TRANSLATION = 1;
+    public static final int TYPE_UNIFORM_SCALE = 2;
+    public static final int TYPE_GENERAL_SCALE = 4;
+    public static final int TYPE_QUADRANT_ROTATION = 8;
+    public static final int TYPE_GENERAL_ROTATION = 16;
+    public static final int TYPE_GENERAL_TRANSFORM = 32;
+    public static final int TYPE_FLIP = 64;
+    public static final int TYPE_MASK_SCALE = TYPE_UNIFORM_SCALE | TYPE_GENERAL_SCALE;
+    public static final int TYPE_MASK_ROTATION = TYPE_QUADRANT_ROTATION | TYPE_GENERAL_ROTATION;
+
+    /**
+     * The <code>TYPE_UNKNOWN</code> is an initial type value
+     */
+    static final int TYPE_UNKNOWN = -1;
+    
+    /**
+     * The min value equivalent to zero. If absolute value less then ZERO it considered as zero.  
+     */
+    static final float ZERO = (float) 1E-10;
+   
+    private final Vertex.Factory<? extends Vertex> pointFactory;
+    
+    /**
+     * The values of transformation matrix
+     */
+    float m00;
+    float m10;
+    float m01;
+    float m11;
+    float m02;
+    float m12;
+
+    /**
+     * The transformation <code>type</code> 
+     */
+    transient int type;
+
+    public AffineTransform() {
+        pointFactory = null;
+        type = TYPE_IDENTITY;
+        m00 = m11 = 1.0f;
+        m10 = m01 = m02 = m12 = 0.0f;
+    }
+
+    public AffineTransform(Factory<? extends Vertex> factory) {
+    	pointFactory = factory;
+        type = TYPE_IDENTITY;
+        m00 = m11 = 1.0f;
+        m10 = m01 = m02 = m12 = 0.0f;
+    }
+
+    public AffineTransform(AffineTransform t) {
+    	this.pointFactory = t.pointFactory;
+        this.type = t.type;
+        this.m00 = t.m00;
+        this.m10 = t.m10;
+        this.m01 = t.m01;
+        this.m11 = t.m11;
+        this.m02 = t.m02;
+        this.m12 = t.m12;
+    }
+
+    public AffineTransform(Vertex.Factory<? extends Vertex> factory, float m00, float m10, float m01, float m11, float m02, float m12) {
+    	pointFactory = factory;
+        this.type = TYPE_UNKNOWN;
+        this.m00 = m00;
+        this.m10 = m10;
+        this.m01 = m01;
+        this.m11 = m11;
+        this.m02 = m02;
+        this.m12 = m12;
+    }
+
+    public AffineTransform(Vertex.Factory<? extends Vertex> factory, float[] matrix) {
+    	pointFactory = factory;
+        this.type = TYPE_UNKNOWN;
+        m00 = matrix[0];
+        m10 = matrix[1];
+        m01 = matrix[2];
+        m11 = matrix[3];
+        if (matrix.length > 4) {
+            m02 = matrix[4];
+            m12 = matrix[5];
+        }
+    }
+
+    /*
+     * Method returns type of affine transformation.
+     * 
+     * Transform matrix is
+     *   m00 m01 m02
+     *   m10 m11 m12
+     * 
+     * According analytic geometry new basis vectors are (m00, m01) and (m10, m11), 
+     * translation vector is (m02, m12). Original basis vectors are (1, 0) and (0, 1). 
+     * Type transformations classification:  
+     *   TYPE_IDENTITY - new basis equals original one and zero translation
+     *   TYPE_TRANSLATION - translation vector isn't zero  
+     *   TYPE_UNIFORM_SCALE - vectors length of new basis equals
+     *   TYPE_GENERAL_SCALE - vectors length of new basis doesn't equal 
+     *   TYPE_FLIP - new basis vector orientation differ from original one
+     *   TYPE_QUADRANT_ROTATION - new basis is rotated by 90, 180, 270, or 360 degrees     
+     *   TYPE_GENERAL_ROTATION - new basis is rotated by arbitrary angle
+     *   TYPE_GENERAL_TRANSFORM - transformation can't be inversed
+     */
+    public int getType() {
+        if (type != TYPE_UNKNOWN) {
+            return type;
+        }
+
+        int type = 0;
+
+        if (m00 * m01 + m10 * m11 != 0.0) {
+            type |= TYPE_GENERAL_TRANSFORM;
+            return type;
+        }
+
+        if (m02 != 0.0 || m12 != 0.0) {
+            type |= TYPE_TRANSLATION;
+        } else
+            if (m00 == 1.0 && m11 == 1.0 && m01 == 0.0 && m10 == 0.0) {
+                type = TYPE_IDENTITY;
+                return type;
+            }
+
+        if (m00 * m11 - m01 * m10 < 0.0) {
+            type |= TYPE_FLIP;
+        }
+
+        float dx = m00 * m00 + m10 * m10;
+        float dy = m01 * m01 + m11 * m11;
+        if (dx != dy) {
+            type |= TYPE_GENERAL_SCALE;
+        } else
+            if (dx != 1.0) {
+                type |= TYPE_UNIFORM_SCALE;
+            }
+
+        if ((m00 == 0.0 && m11 == 0.0) ||
+            (m10 == 0.0 && m01 == 0.0 && (m00 < 0.0 || m11 < 0.0)))
+        {
+            type |= TYPE_QUADRANT_ROTATION;
+        } else
+            if (m01 != 0.0 || m10 != 0.0) {
+                type |= TYPE_GENERAL_ROTATION;
+            }
+
+        return type;
+    }
+
+    public float getScaleX() {
+        return m00;
+    }
+
+    public float getScaleY() {
+        return m11;
+    }
+
+    public float getShearX() {
+        return m01;
+    }
+
+    public float getShearY() {
+        return m10;
+    }
+
+    public float getTranslateX() {
+        return m02;
+    }
+
+    public float getTranslateY() {
+        return m12;
+    }
+
+    public boolean isIdentity() {
+        return getType() == TYPE_IDENTITY;
+    }
+
+    public void getMatrix(float[] matrix) {
+        matrix[0] = m00;
+        matrix[1] = m10;
+        matrix[2] = m01;
+        matrix[3] = m11;
+        if (matrix.length > 4) {
+            matrix[4] = m02;
+            matrix[5] = m12;
+        }
+    }
+
+    public float getDeterminant() {
+        return m00 * m11 - m01 * m10;
+    }
+
+    public void setTransform(float m00, float m10, float m01, float m11, float m02, float m12) {
+        this.type = TYPE_UNKNOWN;
+        this.m00 = m00;
+        this.m10 = m10;
+        this.m01 = m01;
+        this.m11 = m11;
+        this.m02 = m02;
+        this.m12 = m12;
+    }
+
+    public void setTransform(AffineTransform t) {
+        type = t.type;
+        setTransform(t.m00, t.m10, t.m01, t.m11, t.m02, t.m12);
+    }
+
+    public void setToIdentity() {
+        type = TYPE_IDENTITY;
+        m00 = m11 = 1.0f;
+        m10 = m01 = m02 = m12 = 0.0f;
+    }
+
+    public void setToTranslation(float mx, float my) {
+        m00 = m11 = 1.0f;
+        m01 = m10 = 0.0f;
+        m02 = mx;
+        m12 = my;
+        if (mx == 0.0f && my == 0.0f) {
+            type = TYPE_IDENTITY;
+        } else {
+            type = TYPE_TRANSLATION;
+        }
+    }
+
+    public void setToScale(float scx, float scy) {
+        m00 = scx;
+        m11 = scy;
+        m10 = m01 = m02 = m12 = 0.0f;
+        if (scx != 1.0f || scy != 1.0f) {
+            type = TYPE_UNKNOWN;
+        } else {
+            type = TYPE_IDENTITY;
+        }
+    }
+
+    public void setToShear(float shx, float shy) {
+        m00 = m11 = 1.0f;
+        m02 = m12 = 0.0f;
+        m01 = shx;
+        m10 = shy;
+        if (shx != 0.0f || shy != 0.0f) {
+            type = TYPE_UNKNOWN;
+        } else {
+            type = TYPE_IDENTITY;
+        }
+    }
+
+    public void setToRotation(float angle) {
+        float sin = MathFloat.sin(angle);
+        float cos = MathFloat.cos(angle);
+        if (MathFloat.abs(cos) < ZERO) {
+            cos = 0.0f;
+            sin = sin > 0.0f ? 1.0f : -1.0f;
+        } else
+            if (MathFloat.abs(sin) < ZERO) {
+                sin = 0.0f;
+                cos = cos > 0.0f ? 1.0f : -1.0f;
+            }
+        m00 = m11 = cos;
+        m01 = -sin;
+        m10 = sin;
+        m02 = m12 = 0.0f;
+        type = TYPE_UNKNOWN;
+    }
+
+    public void setToRotation(float angle, float px, float py) {
+        setToRotation(angle);
+        m02 = px * (1.0f - m00) + py * m10;
+        m12 = py * (1.0f - m00) - px * m10;
+        type = TYPE_UNKNOWN;
+    }
+
+    public static <T extends Vertex> AffineTransform getTranslateInstance(Vertex.Factory<? extends Vertex> factory, float mx, float my) {
+        AffineTransform t = new AffineTransform(factory);
+        t.setToTranslation(mx, my);
+        return t;
+    }
+
+    public static <T extends Vertex> AffineTransform getScaleInstance(Vertex.Factory<? extends Vertex> factory, float scx, float scY) {
+    	AffineTransform t = new AffineTransform(factory);
+        t.setToScale(scx, scY);
+        return t;
+    }
+
+    public static <T extends Vertex> AffineTransform getShearInstance(Vertex.Factory<? extends Vertex> factory, float shx, float shy) {
+    	AffineTransform t = new AffineTransform(factory);        
+        t.setToShear(shx, shy);
+        return t;
+    }
+
+    public static <T extends Vertex> AffineTransform getRotateInstance(Vertex.Factory<? extends Vertex> factory, float angle) {
+    	AffineTransform t = new AffineTransform(factory);
+        t.setToRotation(angle);
+        return t;
+    }
+
+    public static <T extends Vertex> AffineTransform getRotateInstance(Vertex.Factory<? extends Vertex> factory, float angle, float x, float y) {
+    	AffineTransform t = new AffineTransform(factory);
+        t.setToRotation(angle, x, y);
+        return t;
+    }
+
+    public void translate(float mx, float my) {
+        concatenate(AffineTransform.getTranslateInstance(pointFactory, mx, my));
+    }
+
+    public void scale(float scx, float scy) {
+        concatenate(AffineTransform.getScaleInstance(pointFactory, scx, scy));
+    }
+
+    public void shear(float shx, float shy) {
+        concatenate(AffineTransform.getShearInstance(pointFactory, shx, shy));
+    }
+
+    public void rotate(float angle) {
+        concatenate(AffineTransform.getRotateInstance(pointFactory, angle));
+    }
+
+    public void rotate(float angle, float px, float py) {
+        concatenate(AffineTransform.getRotateInstance(pointFactory, angle, px, py));
+    }
+
+    /** 
+     * Multiply matrix of two AffineTransform objects.
+     * The first argument's {@link Vertex.Factory} is being used.
+     * 
+     * @param t1 - the AffineTransform object is a multiplicand
+     * @param t2 - the AffineTransform object is a multiplier
+     * @return an AffineTransform object that is a result of t1 multiplied by matrix t2. 
+     */
+    AffineTransform multiply(AffineTransform t1, AffineTransform t2) {
+        return new AffineTransform(t1.pointFactory,
+                t1.m00 * t2.m00 + t1.m10 * t2.m01,          // m00
+                t1.m00 * t2.m10 + t1.m10 * t2.m11,          // m01
+                t1.m01 * t2.m00 + t1.m11 * t2.m01,          // m10
+                t1.m01 * t2.m10 + t1.m11 * t2.m11,          // m11
+                t1.m02 * t2.m00 + t1.m12 * t2.m01 + t2.m02, // m02
+                t1.m02 * t2.m10 + t1.m12 * t2.m11 + t2.m12);// m12
+    }
+
+    public void concatenate(AffineTransform t) {
+        setTransform(multiply(t, this));
+    }
+
+    public void preConcatenate(AffineTransform t) {
+        setTransform(multiply(this, t));
+    }
+
+    public AffineTransform createInverse() throws NoninvertibleTransformException {
+        float det = getDeterminant();
+        if (MathFloat.abs(det) < ZERO) {
+            throw new NoninvertibleTransformException(determinantIsZero);
+        }
+        return new AffineTransform(
+        		this.pointFactory,
+                 m11 / det, // m00
+                -m10 / det, // m10
+                -m01 / det, // m01
+                 m00 / det, // m11
+                (m01 * m12 - m11 * m02) / det, // m02
+                (m10 * m02 - m00 * m12) / det  // m12
+        );
+    }
+
+	public Vertex transform(Vertex src, Vertex dst) {
+        if (dst == null) {
+        	dst = pointFactory.create();
+        }
+
+        float x = src.getX();
+        float y = src.getY();
+
+        dst.setCoord(x * m00 + y * m01 + m02, x * m10 + y * m11 + m12);
+        return dst;
+    }
+
+    public void transform(Vertex[] src, int srcOff, Vertex[] dst, int dstOff, int length) {
+        while (--length >= 0) {
+        	Vertex srcPoint = src[srcOff++]; 
+            float x = srcPoint.getX();
+            float y = srcPoint.getY();
+            Vertex dstPoint = dst[dstOff];
+            if (dstPoint == null) {
+            	throw new IllegalArgumentException("dst["+dstOff+"] is null");
+            }
+            dstPoint.setCoord(x * m00 + y * m01 + m02, x * m10 + y * m11 + m12);
+            dst[dstOff++] = dstPoint;
+        }
+    }
+    
+    public void transform(float[] src, int srcOff, float[] dst, int dstOff, int length) {
+        int step = 2;
+        if (src == dst && srcOff < dstOff && dstOff < srcOff + length * 2) {
+            srcOff = srcOff + length * 2 - 2;
+            dstOff = dstOff + length * 2 - 2;
+            step = -2;
+        }
+        while (--length >= 0) {
+            float x = src[srcOff + 0];
+            float y = src[srcOff + 1];
+            dst[dstOff + 0] = x * m00 + y * m01 + m02;
+            dst[dstOff + 1] = x * m10 + y * m11 + m12;
+            srcOff += step;
+            dstOff += step;
+        }
+    }
+    
+	public Vertex deltaTransform(Vertex src, Vertex dst) {
+        if (dst == null) {
+        	dst = pointFactory.create();
+        }
+
+        float x = src.getX();
+        float y = src.getY();
+
+        dst.setCoord(x * m00 + y * m01, x * m10 + y * m11);
+        return dst;
+    }
+
+    public void deltaTransform(float[] src, int srcOff, float[] dst, int dstOff, int length) {
+        while (--length >= 0) {
+            float x = src[srcOff++];
+            float y = src[srcOff++];
+            dst[dstOff++] = x * m00 + y * m01;
+            dst[dstOff++] = x * m10 + y * m11;
+        }
+    }
+
+	public Vertex inverseTransform(Vertex src, Vertex dst) throws NoninvertibleTransformException {
+        float det = getDeterminant();
+        if (MathFloat.abs(det) < ZERO) {
+        	throw new NoninvertibleTransformException(determinantIsZero);
+        }
+        if (dst == null) {
+        	dst = pointFactory.create();
+        }
+
+        float x = src.getX() - m02;
+        float y = src.getY() - m12;
+
+        dst.setCoord((x * m11 - y * m01) / det, (y * m00 - x * m10) / det);
+        return dst;
+    }
+
+    public void inverseTransform(float[] src, int srcOff, float[] dst, int dstOff, int length)
+        throws NoninvertibleTransformException
+    {
+        float det = getDeterminant();
+        if (MathFloat.abs(det) < ZERO) {
+        	throw new NoninvertibleTransformException(determinantIsZero);        	
+        }
+
+        while (--length >= 0) {
+            float x = src[srcOff++] - m02;
+            float y = src[srcOff++] - m12;
+            dst[dstOff++] = (x * m11 - y * m01) / det;
+            dst[dstOff++] = (y * m00 - x * m10) / det;
+        }
+    }
+
+    public Path2D createTransformedShape(Path2D src) {
+        if (src == null) {
+            return null;
+        }
+        if (src instanceof Path2D) {
+            return ((Path2D)src).createTransformedShape(this);
+        }
+        PathIterator path = src.iterator(this);
+        Path2D dst = new Path2D(path.getWindingRule());
+        dst.append(path, false);
+        return dst;
+    }
+
+    @Override
+    public String toString() {
+        return
+            getClass().getName() +
+            "[[" + m00 + ", " + m01 + ", " + m02 + "], [" //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
+                + m10 + ", " + m11 + ", " + m12 + "]]"; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+    }
+
+    @Override
+    public Object clone() {
+        try {
+            return super.clone();
+        } catch (CloneNotSupportedException e) {
+            throw new InternalError();
+        }
+    }
+
+    @Override
+    public int hashCode() {
+        HashCode hash = new HashCode();
+        hash.append(m00);
+        hash.append(m01);
+        hash.append(m02);
+        hash.append(m10);
+        hash.append(m11);
+        hash.append(m12);
+        return hash.hashCode();
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == this) {
+            return true;
+        }
+        if (obj instanceof AffineTransform) {
+            AffineTransform t = (AffineTransform)obj;
+            return
+                m00 == t.m00 && m01 == t.m01 &&
+                m02 == t.m02 && m10 == t.m10 &&
+                m11 == t.m11 && m12 == t.m12;
+        }
+        return false;
+    }
+
+    
+    /**
+     * Write AffineTrasform object to the output steam.
+     * @param stream - the output stream
+     * @throws IOException - if there are I/O errors while writing to the output strem
+     */
+    private void writeObject(java.io.ObjectOutputStream stream) throws IOException {
+        stream.defaultWriteObject();
+    }
+
+    
+    /**
+     * Read AffineTransform object from the input stream
+     * @param stream - the input steam
+     * @throws IOException - if there are I/O errors while reading from the input strem
+     * @throws ClassNotFoundException - if class could not be found 
+     */
+    private void readObject(java.io.ObjectInputStream stream) throws IOException, ClassNotFoundException {
+        stream.defaultReadObject();
+        type = TYPE_UNKNOWN;
+    }
+
+}
+
diff --git a/turtle2d/src/jogamp/graph/geom/plane/IllegalPathStateException.java b/turtle2d/src/jogamp/graph/geom/plane/IllegalPathStateException.java
new file mode 100644
index 000000000..55211b3f9
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/geom/plane/IllegalPathStateException.java
@@ -0,0 +1,34 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Denis M. Kishenko
+ */
+package jogamp.graph.geom.plane;
+
+public class IllegalPathStateException extends RuntimeException {
+
+    private static final long serialVersionUID = -5158084205220481094L;
+
+    public IllegalPathStateException() {
+    }
+
+    public IllegalPathStateException(String s) {
+        super(s);
+    }
+
+}
+
diff --git a/turtle2d/src/jogamp/graph/geom/plane/NoninvertibleTransformException.java b/turtle2d/src/jogamp/graph/geom/plane/NoninvertibleTransformException.java
new file mode 100644
index 000000000..398a03fca
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/geom/plane/NoninvertibleTransformException.java
@@ -0,0 +1,31 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Denis M. Kishenko
+ */
+package jogamp.graph.geom.plane;
+
+public class NoninvertibleTransformException extends java.lang.Exception {
+
+    private static final long serialVersionUID = 6137225240503990466L;
+
+    public NoninvertibleTransformException(String s) {
+        super(s);
+    }
+
+}
+
diff --git a/turtle2d/src/jogamp/graph/geom/plane/Path2D.java b/turtle2d/src/jogamp/graph/geom/plane/Path2D.java
new file mode 100644
index 000000000..431891361
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/geom/plane/Path2D.java
@@ -0,0 +1,428 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Denis M. Kishenko
+ */
+package jogamp.graph.geom.plane;
+
+import java.util.NoSuchElementException;
+
+import com.jogamp.graph.geom.AABBox;
+import com.jogamp.graph.geom.Vertex;
+import com.jogamp.graph.geom.opengl.SVertex;
+
+import jogamp.graph.math.plane.Crossing;
+
+public final class Path2D implements Cloneable {
+
+    public static final int WIND_EVEN_ODD = PathIterator.WIND_EVEN_ODD;
+    public static final int WIND_NON_ZERO = PathIterator.WIND_NON_ZERO;
+
+    static final String invalidWindingRuleValue = "Invalid winding rule value";
+    static final String iteratorOutOfBounds = "Iterator out of bounds";
+    
+    /**
+     * The buffers size
+     */
+    private static final int BUFFER_SIZE = 10;
+    
+    /**
+     * The buffers capacity
+     */
+    private static final int BUFFER_CAPACITY = 10;
+
+    /**
+     * The point's types buffer
+     */
+    byte[] types;
+    
+    /**
+     * The points buffer
+     */
+    float[] points;
+    
+    /**
+     * The point's type buffer size
+     */
+    int typeSize;
+    
+    /**
+     * The points buffer size
+     */
+    int pointSize;
+    
+    /**
+     * The path rule 
+     */
+    int rule;
+
+    /**
+     * The space amount in points buffer for different segmenet's types
+     */
+    static int pointShift[] = {
+            2,  // MOVETO
+            2,  // LINETO
+            4,  // QUADTO
+            6,  // CUBICTO
+            0}; // CLOSE
+
+    /*
+     * GeneralPath path iterator 
+     */
+    class Iterator implements PathIterator {
+
+        /**
+         * The current cursor position in types buffer
+         */
+        int typeIndex;
+        
+        /**
+         * The current cursor position in points buffer
+         */
+        int pointIndex;
+        
+        /**
+         * The source GeneralPath object
+         */
+        Path2D p;
+        
+        /**
+         * The path iterator transformation
+         */
+        AffineTransform t;
+
+        /**
+         * Constructs a new GeneralPath.Iterator for given general path
+         * @param path - the source GeneralPath object
+         */
+        Iterator(Path2D path) {
+            this(path, null);
+        }
+
+        /**
+         * Constructs a new GeneralPath.Iterator for given general path and transformation
+         * @param path - the source GeneralPath object
+         * @param at - the AffineTransform object to apply rectangle path
+         */
+        Iterator(Path2D path, AffineTransform at) {
+            this.p = path;
+            this.t = at;
+        }
+
+        public int getWindingRule() {
+            return p.getWindingRule();
+        }
+
+        public boolean isDone() {
+            return typeIndex >= p.typeSize;
+        }
+
+        public void next() {
+            typeIndex++;
+        }
+
+        public int currentSegment(float[] coords) {
+            if (isDone()) {
+                throw new NoSuchElementException(iteratorOutOfBounds);
+            }
+            int type = p.types[typeIndex];
+            int count = Path2D.pointShift[type];
+            System.arraycopy(p.points, pointIndex, coords, 0, count);
+            if (t != null) {
+                t.transform(coords, 0, coords, 0, count / 2);
+            }
+            pointIndex += count;
+            return type;
+        }
+
+    }
+
+    public Path2D() {
+        this(WIND_NON_ZERO, BUFFER_SIZE);
+    }
+
+    public Path2D(int rule) {
+        this(rule, BUFFER_SIZE);
+    }
+
+    public Path2D(int rule, int initialCapacity) {
+        setWindingRule(rule);
+        types = new byte[initialCapacity];
+        points = new float[initialCapacity * 2];
+    }
+
+    public Path2D(Path2D path) {
+        this(WIND_NON_ZERO, BUFFER_SIZE);
+        PathIterator p = path.iterator(null);
+        setWindingRule(p.getWindingRule());
+        append(p, false);
+    }
+
+    public void setWindingRule(int rule) {
+        if (rule != WIND_EVEN_ODD && rule != WIND_NON_ZERO) {
+            throw new NoSuchElementException(invalidWindingRuleValue);
+        }
+        this.rule = rule;
+    }
+
+    public int getWindingRule() {
+        return rule;
+    }
+
+    /**
+     * Checks points and types buffer size to add pointCount points. If necessary realloc buffers to enlarge size.   
+     * @param pointCount - the point count to be added in buffer
+     */
+    void checkBuf(int pointCount, boolean checkMove) {
+        if (checkMove && typeSize == 0) {
+            throw new IllegalPathStateException("First segment should be SEG_MOVETO type");
+        }
+        if (typeSize == types.length) {
+            byte tmp[] = new byte[typeSize + BUFFER_CAPACITY];
+            System.arraycopy(types, 0, tmp, 0, typeSize);
+            types = tmp;
+        }
+        if (pointSize + pointCount > points.length) {
+            float tmp[] = new float[pointSize + Math.max(BUFFER_CAPACITY * 2, pointCount)];
+            System.arraycopy(points, 0, tmp, 0, pointSize);
+            points = tmp;
+        }
+    }
+
+    public void moveTo(float x, float y) {
+        if (typeSize > 0 && types[typeSize - 1] == PathIterator.SEG_MOVETO) {
+            points[pointSize - 2] = x;
+            points[pointSize - 1] = y;
+        } else {
+            checkBuf(2, false);
+            types[typeSize++] = PathIterator.SEG_MOVETO;
+            points[pointSize++] = x;
+            points[pointSize++] = y;
+        }
+    }
+
+    public void lineTo(float x, float y) {
+        checkBuf(2, true);
+        types[typeSize++] = PathIterator.SEG_LINETO;
+        points[pointSize++] = x;
+        points[pointSize++] = y;
+    }
+
+    public void quadTo(float x1, float y1, float x2, float y2) {
+        checkBuf(4, true);
+        types[typeSize++] = PathIterator.SEG_QUADTO;
+        points[pointSize++] = x1;
+        points[pointSize++] = y1;
+        points[pointSize++] = x2;
+        points[pointSize++] = y2;
+    }
+
+    public void curveTo(float x1, float y1, float x2, float y2, float x3, float y3) {
+        checkBuf(6, true);
+        types[typeSize++] = PathIterator.SEG_CUBICTO;
+        points[pointSize++] = x1;
+        points[pointSize++] = y1;
+        points[pointSize++] = x2;
+        points[pointSize++] = y2;
+        points[pointSize++] = x3;
+        points[pointSize++] = y3;
+    }
+
+    final public int size() {
+    	return typeSize;
+    }
+    
+    final public boolean isClosed() {
+    	return typeSize > 0 && types[typeSize - 1] == PathIterator.SEG_CLOSE ;
+    }
+    
+    public void closePath() {
+        if (!isClosed()) {
+            checkBuf(0, true);
+            types[typeSize++] = PathIterator.SEG_CLOSE;
+        }
+    }
+    
+    public String toString() {
+    	return "[size "+size()+", closed "+isClosed()+"]";
+    }
+
+    public void append(Path2D path, boolean connect) {
+        PathIterator p = path.iterator(null);
+        append(p, connect);
+    }
+
+    public void append(PathIterator path, boolean connect) {
+        while (!path.isDone()) {
+            float coords[] = new float[6];
+            switch (path.currentSegment(coords)) {
+            case PathIterator.SEG_MOVETO:
+                if (!connect || typeSize == 0) {
+                    moveTo(coords[0], coords[1]);
+                    break;
+                }
+                if (types[typeSize - 1] != PathIterator.SEG_CLOSE &&
+                    points[pointSize - 2] == coords[0] &&
+                    points[pointSize - 1] == coords[1])
+                {
+                    break;
+                }
+            // NO BREAK;
+            case PathIterator.SEG_LINETO:
+                lineTo(coords[0], coords[1]);
+                break;
+            case PathIterator.SEG_QUADTO:
+                quadTo(coords[0], coords[1], coords[2], coords[3]);
+                break;
+            case PathIterator.SEG_CUBICTO:
+                curveTo(coords[0], coords[1], coords[2], coords[3], coords[4], coords[5]);
+                break;
+            case PathIterator.SEG_CLOSE:
+                closePath();
+                break;
+            }
+            path.next();
+            connect = false;
+        }
+    }
+
+    public SVertex getCurrentPoint() {
+        if (typeSize == 0) {
+            return null;
+        }
+        int j = pointSize - 2;
+        if (types[typeSize - 1] == PathIterator.SEG_CLOSE) {
+
+            for (int i = typeSize - 2; i > 0; i--) {
+                int type = types[i];
+                if (type == PathIterator.SEG_MOVETO) {
+                    break;
+                }
+                j -= pointShift[type];
+            }
+        }
+        return new SVertex(points[j], points[j + 1]);
+    }
+
+    public void reset() {
+        typeSize = 0;
+        pointSize = 0;
+    }
+
+    public void transform(AffineTransform t) {
+        t.transform(points, 0, points, 0, pointSize / 2);
+    }
+
+    public Path2D createTransformedShape(AffineTransform t) {
+        Path2D p = (Path2D)clone();
+        if (t != null) {
+            p.transform(t);
+        }
+        return p;
+    }
+
+    public final synchronized AABBox getBounds2D() {
+        float rx1, ry1, rx2, ry2;
+        if (pointSize == 0) {
+            rx1 = ry1 = rx2 = ry2 = 0.0f;
+        } else {
+            int i = pointSize - 1;
+            ry1 = ry2 = points[i--];
+            rx1 = rx2 = points[i--];
+            while (i > 0) {
+                float y = points[i--];
+                float x = points[i--];
+                if (x < rx1) {
+                    rx1 = x;
+                } else
+                    if (x > rx2) {
+                        rx2 = x;
+                    }
+                if (y < ry1) {
+                    ry1 = y;
+                } else
+                    if (y > ry2) {
+                        ry2 = y;
+                    }
+            }
+        }
+        return new AABBox(rx1, ry1, 0f, rx2, ry2, 0f);
+    }
+
+    /**
+     * Checks cross count according to path rule to define is it point inside shape or not. 
+     * @param cross - the point cross count
+     * @return true if point is inside path, or false otherwise 
+     */
+    boolean isInside(int cross) {
+        if (rule == WIND_NON_ZERO) {
+            return Crossing.isInsideNonZero(cross);
+        }
+        return Crossing.isInsideEvenOdd(cross);
+    }
+
+    public boolean contains(float px, float py) {
+        return isInside(Crossing.crossShape(this, px, py));
+    }
+
+    public boolean contains(float rx, float ry, float rw, float rh) {
+        int cross = Crossing.intersectShape(this, rx, ry, rw, rh);
+        return cross != Crossing.CROSSING && isInside(cross);
+    }
+
+    public boolean intersects(float rx, float ry, float rw, float rh) {
+        int cross = Crossing.intersectShape(this, rx, ry, rw, rh);
+        return cross == Crossing.CROSSING || isInside(cross);
+    }
+
+    public boolean contains(Vertex p) {
+        return contains(p.getX(), p.getY());
+    }
+
+    public boolean contains(AABBox r) {
+        return contains(r);
+    }
+
+    public boolean intersects(AABBox r) {
+        return intersects(r.getMinX(), r.getMinY(), r.getWidth(), r.getHeight());
+    }
+
+    public PathIterator iterator() {
+        return new Iterator(this);        
+    }
+       
+    public PathIterator iterator(AffineTransform t) {
+        return new Iterator(this, t);
+    }
+
+    /* public PathIterator getPathIterator(AffineTransform t, float flatness) {
+        return new FlatteningPathIterator(getPathIterator(t), flatness);
+    } */
+
+    @Override
+    public Object clone() {
+        try {
+            Path2D p = (Path2D) super.clone();
+            p.types = types.clone();
+            p.points = points.clone();
+            return p;
+        } catch (CloneNotSupportedException e) {
+            throw new InternalError();
+        }
+    }
+}
+
diff --git a/turtle2d/src/jogamp/graph/geom/plane/PathIterator.java b/turtle2d/src/jogamp/graph/geom/plane/PathIterator.java
new file mode 100644
index 000000000..8868a8c58
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/geom/plane/PathIterator.java
@@ -0,0 +1,42 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Denis M. Kishenko
+ */
+package jogamp.graph.geom.plane;
+
+public interface PathIterator {
+
+    public static final int WIND_EVEN_ODD = 0;
+    public static final int WIND_NON_ZERO = 1;
+
+    public static final int SEG_MOVETO  = 0;
+    public static final int SEG_LINETO  = 1;
+    public static final int SEG_QUADTO  = 2;
+    public static final int SEG_CUBICTO = 3;
+    public static final int SEG_CLOSE   = 4;
+
+    public int getWindingRule();
+
+    public boolean isDone();
+
+    public void next();
+
+    public int currentSegment(float[] coords);
+
+}
+
diff --git a/turtle2d/src/jogamp/graph/math/MathFloat.java b/turtle2d/src/jogamp/graph/math/MathFloat.java
new file mode 100644
index 000000000..0b8d69eba
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/math/MathFloat.java
@@ -0,0 +1,45 @@
+/**

+ * Copyright 2011 JogAmp Community. All rights reserved.

+ *

+ * Redistribution and use in source and binary forms, with or without modification, are

+ * permitted provided that the following conditions are met:

+ *

+ *    1. Redistributions of source code must retain the above copyright notice, this list of

+ *       conditions and the following disclaimer.

+ *

+ *    2. Redistributions in binary form must reproduce the above copyright notice, this list

+ *       of conditions and the following disclaimer in the documentation and/or other materials

+ *       provided with the distribution.

+ *

+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED

+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND

+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR

+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON

+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ *

+ * The views and conclusions contained in the software and documentation are those of the

+ * authors and should not be interpreted as representing official policies, either expressed

+ * or implied, of JogAmp Community.

+ */

+package jogamp.graph.math;

+

+public class MathFloat {

+

+    public static final float E = 2.7182818284590452354f;

+

+    public static final float PI = 3.14159265358979323846f;

+    

+    public static float abs(float a) { return (float) java.lang.Math.abs(a);  }

+    public static float pow(float a, float b) { return (float) java.lang.Math.pow(a, b);  }

+    

+    public static float sin(float a) { return (float) java.lang.Math.sin(a);  }

+    public static float cos(float a) { return (float) java.lang.Math.cos(a);  }

+    public static float acos(float a) { return (float) java.lang.Math.acos(a);  }

+    

+    public static float sqrt(float a) { return (float) java.lang.Math.sqrt(a);  }

+    

+}

diff --git a/turtle2d/src/jogamp/graph/math/plane/Crossing.java b/turtle2d/src/jogamp/graph/math/plane/Crossing.java
new file mode 100644
index 000000000..8f8638632
--- /dev/null
+++ b/turtle2d/src/jogamp/graph/math/plane/Crossing.java
@@ -0,0 +1,897 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+/**
+ * @author Denis M. Kishenko
+ */
+package jogamp.graph.math.plane;
+
+import jogamp.graph.geom.plane.Path2D;
+import jogamp.graph.geom.plane.PathIterator;
+import jogamp.graph.math.MathFloat;
+
+
+public class Crossing {
+
+    /**
+     * Allowable tolerance for bounds comparison
+     */
+    static final float DELTA = (float) 1E-5;
+    
+    /**
+     * If roots have distance less then <code>ROOT_DELTA</code> they are double
+     */
+    static final float ROOT_DELTA = (float) 1E-10;
+    
+    /**
+     * Rectangle cross segment
+     */
+    public static final int CROSSING = 255;
+    
+    /**
+     * Unknown crossing result
+     */
+    static final int UNKNOWN = 254;
+
+    /**
+     * Solves quadratic equation
+     * @param eqn - the coefficients of the equation
+     * @param res - the roots of the equation
+     * @return a number of roots
+     */
+    public static int solveQuad(float eqn[], float res[]) {
+        float a = eqn[2];
+        float b = eqn[1];
+        float c = eqn[0];
+        int rc = 0;
+        if (a == 0.0) {
+            if (b == 0.0) {
+                return -1;
+            }
+            res[rc++] = -c / b;
+        } else {
+            float d = b * b - 4.0f * a * c;
+            // d < 0.0
+            if (d < 0.0) {
+                return 0;
+            }
+            d = MathFloat.sqrt(d);
+            res[rc++] = (- b + d) / (a * 2.0f);
+            // d != 0.0
+            if (d != 0.0) {
+                res[rc++] = (- b - d) / (a * 2.0f);
+            }
+        }
+        return fixRoots(res, rc);
+    }
+
+    /**
+     * Solves cubic equation
+     * @param eqn - the coefficients of the equation
+     * @param res - the roots of the equation
+     * @return a number of roots
+     */
+    public static int solveCubic(float eqn[], float res[]) {
+        float d = eqn[3];
+        if (d == 0) {
+            return solveQuad(eqn, res);
+        }
+        float a = eqn[2] / d;
+        float b = eqn[1] / d;
+        float c = eqn[0] / d;
+        int rc = 0;
+
+        float Q = (a * a - 3.0f * b) / 9.0f;
+        float R = (2.0f * a * a * a - 9.0f * a * b + 27.0f * c) / 54.0f;
+        float Q3 = Q * Q * Q;
+        float R2 = R * R;
+        float n = - a / 3.0f;
+
+        if (R2 < Q3) {
+            float t = MathFloat.acos(R / MathFloat.sqrt(Q3)) / 3.0f;
+            float p = 2.0f * MathFloat.PI / 3.0f;
+            float m = -2.0f * MathFloat.sqrt(Q);
+            res[rc++] = m * MathFloat.cos(t) + n;
+            res[rc++] = m * MathFloat.cos(t + p) + n;
+            res[rc++] = m * MathFloat.cos(t - p) + n;
+        } else {
+//          Debug.println("R2 >= Q3 (" + R2 + "/" + Q3 + ")");
+            float A = MathFloat.pow(MathFloat.abs(R) + MathFloat.sqrt(R2 - Q3), 1.0f / 3.0f);
+            if (R > 0.0) {
+                A = -A;
+            }
+//          if (A == 0.0) {
+            if (-ROOT_DELTA < A && A < ROOT_DELTA) {
+                res[rc++] = n;
+            } else {
+                float B = Q / A;
+                res[rc++] = A + B + n;
+//              if (R2 == Q3) {
+                float delta = R2 - Q3;
+                if (-ROOT_DELTA < delta && delta < ROOT_DELTA) {
+                    res[rc++] = - (A + B) / 2.0f + n;
+                }
+            }
+
+        }
+        return fixRoots(res, rc);
+    }
+
+    /**
+     * Excludes float roots. Roots are float if they lies enough close with each other. 
+     * @param res - the roots 
+     * @param rc - the roots count
+     * @return new roots count
+     */
+    static int fixRoots(float res[], int rc) {
+        int tc = 0;
+        for(int i = 0; i < rc; i++) {
+            out: {
+                for(int j = i + 1; j < rc; j++) {
+                    if (isZero(res[i] - res[j])) {
+                        break out;
+                    }
+                }
+                res[tc++] = res[i];
+            }
+        }
+        return tc;
+    }
+
+    /**
+     * QuadCurve class provides basic functionality to find curve crossing and calculating bounds
+     */
+    public static class QuadCurve {
+
+        float ax, ay, bx, by;
+        float Ax, Ay, Bx, By;
+
+        public QuadCurve(float x1, float y1, float cx, float cy, float x2, float y2) {
+            ax = x2 - x1;
+            ay = y2 - y1;
+            bx = cx - x1;
+            by = cy - y1;
+
+            Bx = bx + bx;   // Bx = 2.0 * bx
+            Ax = ax - Bx;   // Ax = ax - 2.0 * bx
+
+            By = by + by;   // By = 2.0 * by
+            Ay = ay - By;   // Ay = ay - 2.0 * by
+        }
+
+        int cross(float res[], int rc, float py1, float py2) {
+            int cross = 0;
+
+            for (int i = 0; i < rc; i++) {
+                float t = res[i];
+
+                // CURVE-OUTSIDE
+                if (t < -DELTA || t > 1 + DELTA) {
+                    continue;
+                }
+                // CURVE-START
+                if (t < DELTA) {
+                    if (py1 < 0.0 && (bx != 0.0 ? bx : ax - bx) < 0.0) {
+                        cross--;
+                    }
+                    continue;
+                }
+                // CURVE-END
+                if (t > 1 - DELTA) {
+                    if (py1 < ay && (ax != bx ? ax - bx : bx) > 0.0) {
+                        cross++;
+                    }
+                    continue;
+                }
+                // CURVE-INSIDE
+                float ry = t * (t * Ay + By);
+                // ry = t * t * Ay + t * By
+                if (ry > py2) {
+                    float rxt = t * Ax + bx;
+                    // rxt = 2.0 * t * Ax + Bx = 2.0 * t * Ax + 2.0 * bx
+                    if (rxt > -DELTA && rxt < DELTA) {
+                        continue;
+                    }
+                    cross += rxt > 0.0 ? 1 : -1;
+                }
+            } // for
+
+            return cross;
+        }
+
+        int solvePoint(float res[], float px) {
+            float eqn[] = {-px, Bx, Ax};
+            return solveQuad(eqn, res);
+        }
+
+        int solveExtrem(float res[]) {
+            int rc = 0;
+            if (Ax != 0.0) {
+                res[rc++] = - Bx / (Ax + Ax);
+            }
+            if (Ay != 0.0) {
+                res[rc++] = - By / (Ay + Ay);
+            }
+            return rc;
+        }
+
+        int addBound(float bound[], int bc, float res[], int rc, float minX, float maxX, boolean changeId, int id) {
+            for(int i = 0; i < rc; i++) {
+                float t = res[i];
+                if (t > -DELTA && t < 1 + DELTA) {
+                    float rx = t * (t * Ax + Bx);
+                    if (minX <= rx && rx <= maxX) {
+                        bound[bc++] = t;
+                        bound[bc++] = rx;
+                        bound[bc++] = t * (t * Ay + By);
+                        bound[bc++] = id;
+                        if (changeId) {
+                            id++;
+                        }
+                    }
+                }
+            }
+            return bc;
+        }
+
+    }
+
+    /**
+     * CubicCurve class provides basic functionality to find curve crossing and calculating bounds
+     */
+    public static class CubicCurve {
+
+        float ax, ay, bx, by, cx, cy;
+        float Ax, Ay, Bx, By, Cx, Cy;
+        float Ax3, Bx2;
+
+        public CubicCurve(float x1, float y1, float cx1, float cy1, float cx2, float cy2, float x2, float y2) {
+            ax = x2 - x1;
+            ay = y2 - y1;
+            bx = cx1 - x1;
+            by = cy1 - y1;
+            cx = cx2 - x1;
+            cy = cy2 - y1;
+
+            Cx = bx + bx + bx;           // Cx = 3.0 * bx
+            Bx = cx + cx + cx - Cx - Cx; // Bx = 3.0 * cx - 6.0 * bx
+            Ax = ax - Bx - Cx;           // Ax = ax - 3.0 * cx + 3.0 * bx
+
+            Cy = by + by + by;           // Cy = 3.0 * by
+            By = cy + cy + cy - Cy - Cy; // By = 3.0 * cy - 6.0 * by
+            Ay = ay - By - Cy;           // Ay = ay - 3.0 * cy + 3.0 * by
+
+            Ax3 = Ax + Ax + Ax;
+            Bx2 = Bx + Bx;
+        }
+
+        int cross(float res[], int rc, float py1, float py2) {
+            int cross = 0;
+            for (int i = 0; i < rc; i++) {
+                float t = res[i];
+
+                // CURVE-OUTSIDE
+                if (t < -DELTA || t > 1 + DELTA) {
+                    continue;
+                }
+                // CURVE-START
+                if (t < DELTA) {
+                    if (py1 < 0.0 && (bx != 0.0 ? bx : (cx != bx ? cx - bx : ax - cx)) < 0.0) {
+                        cross--;
+                    }
+                    continue;
+                }
+                // CURVE-END
+                if (t > 1 - DELTA) {
+                    if (py1 < ay && (ax != cx ? ax - cx : (cx != bx ? cx - bx : bx)) > 0.0) {
+                        cross++;
+                    }
+                    continue;
+                }
+                // CURVE-INSIDE
+                float ry = t * (t * (t * Ay + By) + Cy);
+                // ry = t * t * t * Ay + t * t * By + t * Cy
+                if (ry > py2) {
+                    float rxt = t * (t * Ax3 + Bx2) + Cx;
+                    // rxt = 3.0 * t * t * Ax + 2.0 * t * Bx + Cx
+                    if (rxt > -DELTA && rxt < DELTA) {
+                        rxt = t * (Ax3 + Ax3) + Bx2;
+                        // rxt = 6.0 * t * Ax + 2.0 * Bx
+                        if (rxt < -DELTA || rxt > DELTA) {
+                            // Inflection point
+                            continue;
+                        }
+                        rxt = ax;
+                    }
+                    cross += rxt > 0.0 ? 1 : -1;
+                }
+            } //for
+
+            return cross;
+        }
+
+        int solvePoint(float res[], float px) {
+            float eqn[] = {-px, Cx, Bx, Ax};
+            return solveCubic(eqn, res);
+        }
+
+        int solveExtremX(float res[]) {
+            float eqn[] = {Cx, Bx2, Ax3};
+            return solveQuad(eqn, res);
+        }
+
+        int solveExtremY(float res[]) {
+            float eqn[] = {Cy, By + By, Ay + Ay + Ay};
+            return solveQuad(eqn, res);
+        }
+
+        int addBound(float bound[], int bc, float res[], int rc, float minX, float maxX, boolean changeId, int id) {
+            for(int i = 0; i < rc; i++) {
+                float t = res[i];
+                if (t > -DELTA && t < 1 + DELTA) {
+                    float rx = t * (t * (t * Ax + Bx) + Cx);
+                    if (minX <= rx && rx <= maxX) {
+                        bound[bc++] = t;
+                        bound[bc++] = rx;
+                        bound[bc++] = t * (t * (t * Ay + By) + Cy);
+                        bound[bc++] = id;
+                        if (changeId) {
+                            id++;
+                        }
+                    }
+                }
+            }
+            return bc;
+        }
+
+    }
+
+    /**
+     * Returns how many times ray from point (x,y) cross line.
+     */
+    public static int crossLine(float x1, float y1, float x2, float y2, float x, float y) {
+
+        // LEFT/RIGHT/UP/EMPTY
+        if ((x < x1 && x < x2) ||
+            (x > x1 && x > x2) ||
+            (y > y1 && y > y2) ||
+            (x1 == x2))
+        {
+            return 0;
+        }
+
+        // DOWN
+        if (y < y1 && y < y2) {
+        } else {
+            // INSIDE
+            if ((y2 - y1) * (x - x1) / (x2 - x1) <= y - y1) {
+                // INSIDE-UP
+                return 0;
+            }
+        }
+
+        // START
+        if (x == x1) {
+        	return x1 < x2 ? 0 : -1;        
+        }
+        
+        // END
+        if (x == x2) {
+        	return x1 < x2 ? 1 : 0;        
+        }
+
+        // INSIDE-DOWN
+        return x1 < x2 ? 1 : -1;
+    }
+
+    /**
+     * Returns how many times ray from point (x,y) cross quard curve
+     */
+    public static int crossQuad(float x1, float y1, float cx, float cy, float x2, float y2, float x, float y) {
+
+        // LEFT/RIGHT/UP/EMPTY
+        if ((x < x1 && x < cx && x < x2) ||
+            (x > x1 && x > cx && x > x2) ||
+            (y > y1 && y > cy && y > y2) ||
+            (x1 == cx && cx == x2))
+        {
+            return 0;
+        }
+
+        // DOWN
+        if (y < y1 && y < cy && y < y2 && x != x1 && x != x2) {
+            if (x1 < x2) {
+                return x1 < x && x < x2 ? 1 : 0;
+            }
+            return x2 < x && x < x1 ? -1 : 0;
+        }
+
+        // INSIDE
+        QuadCurve c = new QuadCurve(x1, y1, cx, cy, x2, y2);
+        float px = x - x1;
+        float py = y - y1;
+        float res[] = new float[3];
+        int rc = c.solvePoint(res, px);
+
+        return c.cross(res, rc, py, py);
+    }
+
+    /**
+     * Returns how many times ray from point (x,y) cross cubic curve
+     */
+    public static int crossCubic(float x1, float y1, float cx1, float cy1, float cx2, float cy2, float x2, float y2, float x, float y) {
+
+        // LEFT/RIGHT/UP/EMPTY
+        if ((x < x1 && x < cx1 && x < cx2 && x < x2) ||
+            (x > x1 && x > cx1 && x > cx2 && x > x2) ||
+            (y > y1 && y > cy1 && y > cy2 && y > y2) ||
+            (x1 == cx1 && cx1 == cx2 && cx2 == x2))
+        {
+            return 0;
+        }
+
+        // DOWN
+        if (y < y1 && y < cy1 && y < cy2 && y < y2 && x != x1 && x != x2) {
+            if (x1 < x2) {
+                return x1 < x && x < x2 ? 1 : 0;
+            }
+            return x2 < x && x < x1 ? -1 : 0;
+        }
+
+        // INSIDE
+        CubicCurve c = new CubicCurve(x1, y1, cx1, cy1, cx2, cy2, x2, y2);
+        float px = x - x1;
+        float py = y - y1;
+        float res[] = new float[3];
+        int rc = c.solvePoint(res, px);
+        return c.cross(res, rc, py, py);
+    }
+
+    /**
+     * Returns how many times ray from point (x,y) cross path
+     */
+    public static int crossPath(PathIterator p, float x, float y) {
+        int cross = 0;
+        float mx, my, cx, cy;
+        mx = my = cx = cy = 0.0f;
+        float coords[] = new float[6];
+
+        while (!p.isDone()) {
+            switch (p.currentSegment(coords)) {
+            case PathIterator.SEG_MOVETO:
+                if (cx != mx || cy != my) {
+                    cross += crossLine(cx, cy, mx, my, x, y);
+                }
+                mx = cx = coords[0];
+                my = cy = coords[1];
+                break;
+            case PathIterator.SEG_LINETO:
+                cross += crossLine(cx, cy, cx = coords[0], cy = coords[1], x, y);
+                break;
+            case PathIterator.SEG_QUADTO:
+                cross += crossQuad(cx, cy, coords[0], coords[1], cx = coords[2], cy = coords[3], x, y);
+                break;
+            case PathIterator.SEG_CUBICTO:
+                cross += crossCubic(cx, cy, coords[0], coords[1], coords[2], coords[3], cx = coords[4], cy = coords[5], x, y);
+                break;
+            case PathIterator.SEG_CLOSE:
+                if (cy != my || cx != mx) {
+                    cross += crossLine(cx, cy, cx = mx, cy = my, x, y);
+                }
+                break;
+            }
+            
+            // checks if the point (x,y) is the vertex of shape with PathIterator p           
+            if (x == cx && y == cy) {
+            	cross = 0;
+            	cy = my;
+            	break;
+            }
+            p.next();
+        }
+        if (cy != my) {
+            cross += crossLine(cx, cy, mx, my, x, y);
+        }
+        return cross;
+    }
+
+    /**
+     * Returns how many times ray from point (x,y) cross shape
+     */
+    public static int crossShape(Path2D s, float x, float y) {
+        if (!s.getBounds2D().contains(x, y)) {
+            return 0;
+        }
+        return crossPath(s.iterator(null), x, y);
+    }
+
+    /**
+     * Returns true if value enough small
+     */
+    public static boolean isZero(float val) {
+        return -DELTA < val && val < DELTA;
+    }
+
+    /**
+     * Sort bound array
+     */
+    static void sortBound(float bound[], int bc) {
+        for(int i = 0; i < bc - 4; i += 4) {
+            int k = i;
+            for(int j = i + 4; j < bc; j += 4) {
+                if (bound[k] > bound[j]) {
+                    k = j;
+                }
+            }
+            if (k != i) {
+                float tmp = bound[i];
+                bound[i] = bound[k];
+                bound[k] = tmp;
+                tmp = bound[i + 1];
+                bound[i + 1] = bound[k + 1];
+                bound[k + 1] = tmp;
+                tmp = bound[i + 2];
+                bound[i + 2] = bound[k + 2];
+                bound[k + 2] = tmp;
+                tmp = bound[i + 3];
+                bound[i + 3] = bound[k + 3];
+                bound[k + 3] = tmp;
+            }
+        }
+    }
+    
+    /**
+     * Returns are bounds intersect or not intersect rectangle 
+     */
+    static int crossBound(float bound[], int bc, float py1, float py2) {
+
+        // LEFT/RIGHT
+        if (bc == 0) {
+            return 0;
+        }
+
+        // Check Y coordinate
+        int up = 0;
+        int down = 0;
+        for(int i = 2; i < bc; i += 4) {
+            if (bound[i] < py1) {
+                up++;
+                continue;
+            }
+            if (bound[i] > py2) {
+                down++;
+                continue;
+            }
+            return CROSSING;
+        }
+
+        // UP
+        if (down == 0) {
+            return 0;
+        }
+
+        if (up != 0) {
+            // bc >= 2
+            sortBound(bound, bc);
+            boolean sign = bound[2] > py2;
+            for(int i = 6; i < bc; i += 4) {
+                boolean sign2 = bound[i] > py2;
+                if (sign != sign2 && bound[i + 1] != bound[i - 3]) {
+                    return CROSSING;
+                }
+                sign = sign2;
+            }
+        }
+        return UNKNOWN;
+    }
+
+    /**
+     * Returns how many times rectangle stripe cross line or the are intersect
+     */
+    public static int intersectLine(float x1, float y1, float x2, float y2, float rx1, float ry1, float rx2, float ry2) {
+
+        // LEFT/RIGHT/UP
+        if ((rx2 < x1 && rx2 < x2) ||
+            (rx1 > x1 && rx1 > x2) ||
+            (ry1 > y1 && ry1 > y2))
+        {
+            return 0;
+        }
+
+        // DOWN
+        if (ry2 < y1 && ry2 < y2) {
+        } else {
+
+            // INSIDE
+            if (x1 == x2) {
+                return CROSSING;
+            }
+
+            // Build bound
+            float bx1, bx2;
+            if (x1 < x2) {
+                bx1 = x1 < rx1 ? rx1 : x1;
+                bx2 = x2 < rx2 ? x2 : rx2;
+            } else {
+                bx1 = x2 < rx1 ? rx1 : x2;
+                bx2 = x1 < rx2 ? x1 : rx2;
+            }
+            float k = (y2 - y1) / (x2 - x1);
+            float by1 = k * (bx1 - x1) + y1;
+            float by2 = k * (bx2 - x1) + y1;
+
+            // BOUND-UP
+            if (by1 < ry1 && by2 < ry1) {
+                return 0;
+            }
+
+            // BOUND-DOWN
+            if (by1 > ry2 && by2 > ry2) {
+            } else {
+                return CROSSING;
+            }
+        }
+
+        // EMPTY
+        if (x1 == x2) {
+            return 0;
+        }
+
+        // CURVE-START
+        if (rx1 == x1) {
+            return x1 < x2 ? 0 : -1;
+        }
+
+        // CURVE-END
+        if (rx1 == x2) {
+            return x1 < x2 ? 1 : 0;
+        }
+
+        if (x1 < x2) {
+            return x1 < rx1 && rx1 < x2 ? 1 : 0;
+        }
+        return x2 < rx1 && rx1 < x1 ? -1 : 0;
+
+    }
+
+    /**
+     * Returns how many times rectangle stripe cross quad curve or the are intersect
+     */
+    public static int intersectQuad(float x1, float y1, float cx, float cy, float x2, float y2, float rx1, float ry1, float rx2, float ry2) {
+
+        // LEFT/RIGHT/UP ------------------------------------------------------
+        if ((rx2 < x1 && rx2 < cx && rx2 < x2) ||
+            (rx1 > x1 && rx1 > cx && rx1 > x2) ||
+            (ry1 > y1 && ry1 > cy && ry1 > y2))
+        {
+            return 0;
+        }
+
+        // DOWN ---------------------------------------------------------------
+        if (ry2 < y1 && ry2 < cy && ry2 < y2 && rx1 != x1 && rx1 != x2) {
+            if (x1 < x2) {
+                return x1 < rx1 && rx1 < x2 ? 1 : 0;
+            }
+            return x2 < rx1 && rx1 < x1 ? -1 : 0;
+        }
+
+        // INSIDE -------------------------------------------------------------
+        QuadCurve c = new QuadCurve(x1, y1, cx, cy, x2, y2);
+        float px1 = rx1 - x1;
+        float py1 = ry1 - y1;
+        float px2 = rx2 - x1;
+        float py2 = ry2 - y1;
+
+        float res1[] = new float[3];
+        float res2[] = new float[3];
+        int rc1 = c.solvePoint(res1, px1);
+        int rc2 = c.solvePoint(res2, px2);
+
+        // INSIDE-LEFT/RIGHT
+        if (rc1 == 0 && rc2 == 0) {
+            return 0;
+        }
+
+        // Build bound --------------------------------------------------------
+        float minX = px1 - DELTA;
+        float maxX = px2 + DELTA;
+        float bound[] = new float[28];
+        int bc = 0;
+        // Add roots
+        bc = c.addBound(bound, bc, res1, rc1, minX, maxX, false, 0);
+        bc = c.addBound(bound, bc, res2, rc2, minX, maxX, false, 1);
+        // Add extremal points`
+        rc2 = c.solveExtrem(res2);
+        bc = c.addBound(bound, bc, res2, rc2, minX, maxX, true, 2);
+        // Add start and end
+        if (rx1 < x1 && x1 < rx2) {
+            bound[bc++] = 0.0f;
+            bound[bc++] = 0.0f;
+            bound[bc++] = 0.0f;
+            bound[bc++] = 4;
+        }
+        if (rx1 < x2 && x2 < rx2) {
+            bound[bc++] = 1.0f;
+            bound[bc++] = c.ax;
+            bound[bc++] = c.ay;
+            bound[bc++] = 5;
+        }
+        // End build bound ----------------------------------------------------
+
+        int cross = crossBound(bound, bc, py1, py2);
+        if (cross != UNKNOWN) {
+            return cross;
+        }
+        return c.cross(res1, rc1, py1, py2);
+    }
+
+    /**
+     * Returns how many times rectangle stripe cross cubic curve or the are intersect
+     */
+    public static int intersectCubic(float x1, float y1, float cx1, float cy1, float cx2, float cy2, float x2, float y2, float rx1, float ry1, float rx2, float ry2) {
+
+        // LEFT/RIGHT/UP
+        if ((rx2 < x1 && rx2 < cx1 && rx2 < cx2 && rx2 < x2) ||
+            (rx1 > x1 && rx1 > cx1 && rx1 > cx2 && rx1 > x2) ||
+            (ry1 > y1 && ry1 > cy1 && ry1 > cy2 && ry1 > y2))
+        {
+            return 0;
+        }
+
+        // DOWN
+        if (ry2 < y1 && ry2 < cy1 && ry2 < cy2 && ry2 < y2 && rx1 != x1 && rx1 != x2) {
+            if (x1 < x2) {
+                return x1 < rx1 && rx1 < x2 ? 1 : 0;
+            }
+            return x2 < rx1 && rx1 < x1 ? -1 : 0;
+        }
+
+        // INSIDE
+        CubicCurve c = new CubicCurve(x1, y1, cx1, cy1, cx2, cy2, x2, y2);
+        float px1 = rx1 - x1;
+        float py1 = ry1 - y1;
+        float px2 = rx2 - x1;
+        float py2 = ry2 - y1;
+
+        float res1[] = new float[3];
+        float res2[] = new float[3];
+        int rc1 = c.solvePoint(res1, px1);
+        int rc2 = c.solvePoint(res2, px2);
+
+        // LEFT/RIGHT
+        if (rc1 == 0 && rc2 == 0) {
+            return 0;
+        }
+
+        float minX = px1 - DELTA;
+        float maxX = px2 + DELTA;
+
+        // Build bound --------------------------------------------------------
+        float bound[] = new float[40];
+        int bc = 0;
+        // Add roots
+        bc = c.addBound(bound, bc, res1, rc1, minX, maxX, false, 0);
+        bc = c.addBound(bound, bc, res2, rc2, minX, maxX, false, 1);
+        // Add extrimal points
+        rc2 = c.solveExtremX(res2);
+        bc = c.addBound(bound, bc, res2, rc2, minX, maxX, true, 2);
+        rc2 = c.solveExtremY(res2);
+        bc = c.addBound(bound, bc, res2, rc2, minX, maxX, true, 4);
+        // Add start and end
+        if (rx1 < x1 && x1 < rx2) {
+            bound[bc++] = 0.0f;
+            bound[bc++] = 0.0f;
+            bound[bc++] = 0.0f;
+            bound[bc++] = 6;
+        }
+        if (rx1 < x2 && x2 < rx2) {
+            bound[bc++] = 1.0f;
+            bound[bc++] = c.ax;
+            bound[bc++] = c.ay;
+            bound[bc++] = 7;
+        }
+        // End build bound ----------------------------------------------------
+
+        int cross = crossBound(bound, bc, py1, py2);
+        if (cross != UNKNOWN) {
+            return cross;
+        }
+        return c.cross(res1, rc1, py1, py2);
+    }
+
+    /**
+     * Returns how many times rectangle stripe cross path or the are intersect
+     */
+    public static int intersectPath(PathIterator p, float x, float y, float w, float h) {
+
+        int cross = 0;
+        int count;
+        float mx, my, cx, cy;
+        mx = my = cx = cy = 0.0f;
+        float coords[] = new float[6];
+
+        float rx1 = x;
+        float ry1 = y;
+        float rx2 = x + w;
+        float ry2 = y + h;
+
+        while (!p.isDone()) {
+            count = 0;
+            switch (p.currentSegment(coords)) {
+            case PathIterator.SEG_MOVETO:
+                if (cx != mx || cy != my) {
+                    count = intersectLine(cx, cy, mx, my, rx1, ry1, rx2, ry2);
+                }
+                mx = cx = coords[0];
+                my = cy = coords[1];
+                break;
+            case PathIterator.SEG_LINETO:
+                count = intersectLine(cx, cy, cx = coords[0], cy = coords[1], rx1, ry1, rx2, ry2);
+                break;
+            case PathIterator.SEG_QUADTO:
+                count = intersectQuad(cx, cy, coords[0], coords[1], cx = coords[2], cy = coords[3], rx1, ry1, rx2, ry2);
+                break;
+            case PathIterator.SEG_CUBICTO:
+                count = intersectCubic(cx, cy, coords[0], coords[1], coords[2], coords[3], cx = coords[4], cy = coords[5], rx1, ry1, rx2, ry2);
+                break;
+            case PathIterator.SEG_CLOSE:
+                if (cy != my || cx != mx) {
+                    count = intersectLine(cx, cy, mx, my, rx1, ry1, rx2, ry2);
+                }
+                cx = mx;
+                cy = my;
+                break;
+            }
+            if (count == CROSSING) {
+                return CROSSING;
+            }
+            cross += count;
+            p.next();
+        }
+        if (cy != my) {
+            count = intersectLine(cx, cy, mx, my, rx1, ry1, rx2, ry2);
+            if (count == CROSSING) {
+                return CROSSING;
+            }
+            cross += count;
+        }
+        return cross;
+    }
+
+    /**
+     * Returns how many times rectangle stripe cross shape or the are intersect
+     */
+    public static int intersectShape(Path2D s, float x, float y, float w, float h) {
+        if (!s.getBounds2D().intersects(x, y, w, h)) {
+            return 0;
+        }
+        return intersectPath(s.iterator(null), x, y, w, h);
+    }
+
+    /**
+     * Returns true if cross count correspond inside location for non zero path rule
+     */
+    public static boolean isInsideNonZero(int cross) {
+        return cross != 0;
+    }
+
+    /**
+     * Returns true if cross count correspond inside location for even-odd path rule
+     */
+    public static boolean isInsideEvenOdd(int cross) {
+        return (cross & 1) != 0;
+    }
+}