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Diffstat (limited to 'src/demos/tess/Tess.java')
-rw-r--r-- | src/demos/tess/Tess.java | 243 |
1 files changed, 0 insertions, 243 deletions
diff --git a/src/demos/tess/Tess.java b/src/demos/tess/Tess.java deleted file mode 100644 index 555214f..0000000 --- a/src/demos/tess/Tess.java +++ /dev/null @@ -1,243 +0,0 @@ -/* - * Portions Copyright (C) 2003 Sun Microsystems, Inc. - * All rights reserved. - */ - -/* - * Copyright (c) 1993-1999, Silicon Graphics, Inc. - * ALL RIGHTS RESERVED - * Permission to use, copy, modify, and distribute this software for - * any purpose and without fee is hereby granted, provided that the above - * copyright notice appear in all copies and that both the copyright notice - * and this permission notice appear in supporting documentation, and that - * the name of Silicon Graphics, Inc. not be used in advertising - * or publicity pertaining to distribution of the software without specific, - * written prior permission. - * - * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS" - * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, - * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR - * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON - * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT, - * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY - * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION, - * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF - * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN - * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE - * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE. - * - * US Government Users Restricted Rights - * Use, duplication, or disclosure by the Government is subject to - * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph - * (c)(1)(ii) of the Rights in Technical Data and Computer Software - * clause at DFARS 252.227-7013 and/or in similar or successor - * clauses in the FAR or the DOD or NASA FAR Supplement. - * Unpublished-- rights reserved under the copyright laws of the - * United States. Contractor/manufacturer is Silicon Graphics, - * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311. - * - * OpenGL(R) is a registered trademark of Silicon Graphics, Inc. - */ - -package demos.tess; - -/** - * tess.java - * This program demonstrates polygon tessellation. - * Two tesselated objects are drawn. The first is a - * rectangle with a triangular hole. The second is a - * smooth shaded, self-intersecting star. - * - * Note the exterior rectangle is drawn with its vertices - * in counter-clockwise order, but its interior clockwise. - * Note the combineCallback is needed for the self-intersecting - * star. Also note that removing the TessProperty for the - * star will make the interior unshaded (WINDING_ODD). - * - * @author Ported by Nathan Parker Burg, July 2003 - */ - -import javax.media.opengl.*; -import javax.media.opengl.glu.*; -import com.sun.opengl.util.*; - -import java.awt.*; -import java.awt.event.WindowAdapter; -import java.awt.event.WindowEvent; - -public class Tess { - public static void main(String[] args) { - try { - Frame frame = new Frame("Tess Demo"); - frame.setSize(500, 500); - - GLCanvas canvas = new GLCanvas(); - frame.add(canvas); - canvas.addGLEventListener(new TessRenderer()); - - frame.addWindowListener(new WindowAdapter() { - public void windowClosing(WindowEvent e) { - // Run this on another thread than the AWT event queue to - // avoid deadlocks on shutdown on some platforms - new Thread(new Runnable() { - public void run() { - System.exit(0); - } - }).start(); - } - }); - frame.show(); - } catch (Exception e) { - e.printStackTrace(); - } - } - - public static class TessRenderer implements GLEventListener { - private GL gl; - private GLU glu = new GLU(); - private int startList; - - public void init(GLAutoDrawable drawable) { - drawable.setGL(new DebugGL(drawable.getGL())); - - gl = drawable.getGL(); - - double[][] rect = new double[][]{{50.0, 50.0, 0.0}, - {200.0, 50.0, 0.0}, - {200.0, 200.0, 0.0}, - {50.0, 200.0, 0.0}}; - double[][] tri = new double[][]{{75.0, 75.0, 0.0}, - {125.0, 175.0, 0.0}, - {175.0, 75.0, 0.0}}; - double[][] star = new double[][]{{250.0, 50.0, 0.0, 1.0, 0.0, 1.0}, - {325.0, 200.0, 0.0, 1.0, 1.0, 0.0}, - {400.0, 50.0, 0.0, 0.0, 1.0, 1.0}, - {250.0, 150.0, 0.0, 1.0, 0.0, 0.0}, - {400.0, 150.0, 0.0, 0.0, 1.0, 0.0}}; - - gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); - - startList = gl.glGenLists(2); - GLUtessellator tobj = glu.gluNewTess(); - - TessCallback tessCallback = new TessCallback(gl, glu); - - glu.gluTessCallback(tobj, GLU.GLU_TESS_VERTEX, tessCallback); - glu.gluTessCallback(tobj, GLU.GLU_TESS_BEGIN, tessCallback); - glu.gluTessCallback(tobj, GLU.GLU_TESS_END, tessCallback); - glu.gluTessCallback(tobj, GLU.GLU_TESS_ERROR, tessCallback); - - gl.glNewList(startList, GL.GL_COMPILE); - gl.glShadeModel(GL.GL_FLAT); - glu.gluTessBeginPolygon(tobj, null); - glu.gluTessBeginContour(tobj); - glu.gluTessVertex(tobj, rect[0], 0, rect[0]); - glu.gluTessVertex(tobj, rect[1], 0, rect[1]); - glu.gluTessVertex(tobj, rect[2], 0, rect[2]); - glu.gluTessVertex(tobj, rect[3], 0, rect[3]); - glu.gluTessEndContour(tobj); - glu.gluTessBeginContour(tobj); - glu.gluTessVertex(tobj, tri[0], 0, tri[0]); - glu.gluTessVertex(tobj, tri[1], 0, tri[1]); - glu.gluTessVertex(tobj, tri[2], 0, tri[2]); - glu.gluTessEndContour(tobj); - glu.gluTessEndPolygon(tobj); - gl.glEndList(); - - glu.gluTessCallback(tobj, GLU.GLU_TESS_VERTEX, tessCallback); - glu.gluTessCallback(tobj, GLU.GLU_TESS_BEGIN, tessCallback); - glu.gluTessCallback(tobj, GLU.GLU_TESS_END, tessCallback); - glu.gluTessCallback(tobj, GLU.GLU_TESS_ERROR, tessCallback); - glu.gluTessCallback(tobj, GLU.GLU_TESS_COMBINE, tessCallback); - - gl.glNewList(startList + 1, GL.GL_COMPILE); - gl.glShadeModel(GL.GL_SMOOTH); - glu.gluTessProperty(tobj, GLU.GLU_TESS_WINDING_RULE, GLU.GLU_TESS_WINDING_POSITIVE); - glu.gluTessBeginPolygon(tobj, null); - glu.gluTessBeginContour(tobj); - glu.gluTessVertex(tobj, star[0], 0, star[0]); - glu.gluTessVertex(tobj, star[1], 0, star[1]); - glu.gluTessVertex(tobj, star[2], 0, star[2]); - glu.gluTessVertex(tobj, star[3], 0, star[3]); - glu.gluTessVertex(tobj, star[4], 0, star[4]); - glu.gluTessEndContour(tobj); - glu.gluTessEndPolygon(tobj); - gl.glEndList(); - glu.gluDeleteTess(tobj); - }//end init - - - public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) { - gl.glMatrixMode(GL.GL_PROJECTION); - gl.glLoadIdentity(); - gl.glOrtho( 0, 450, 0, 250, -1, 1 ); - gl.glMatrixMode(GL.GL_MODELVIEW); - gl.glLoadIdentity(); - } - - public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged) { - } - - public void display(GLAutoDrawable drawable) { - gl.glClear(GL.GL_COLOR_BUFFER_BIT); - gl.glColor3d(1.0, 1.0, 1.0); - gl.glCallList(startList); - gl.glCallList(startList + 1); - - gl.glFlush(); - } - }//end TessRenderer - - - public static class TessCallback extends javax.media.opengl.glu.GLUtessellatorCallbackAdapter { - GL gl; - GLU glu; - - public TessCallback(GL gl, GLU glu) { - this.gl = gl; - this.glu = glu; - }; - public void begin(int type) { - gl.glBegin(type); - } - - public void end() { - gl.glEnd(); - } - - public void vertex(Object data) { - if (data instanceof double[]) { - double[] d = (double[]) data; - if (d.length == 6) { - gl.glColor3dv(d, 3); - } - gl.glVertex3dv(d, 0); - } - } - - public void error(int errnum) { - String estring; - estring = glu.gluErrorString(errnum); - System.out.println("Tessellation Error: " + estring); - //System.exit(0); - throw new RuntimeException(); - } - - public void combine(double[] coords, Object[] data, - float[] weight, Object[] outData) { - double[] vertex = new double[6]; - - int i; - vertex[0] = coords[0]; - vertex[1] = coords[1]; - vertex[2] = coords[2]; - for (i = 3; i < 6; i++) - vertex[i] = weight[0] * ((double[]) data[0])[i] + - weight[1] * ((double[]) data[1])[i] + - weight[2] * ((double[]) data[2])[i] + - weight[3] * ((double[]) data[3])[i]; - outData[0] = vertex; - } - }//End TessCallback -}//End Tess |