1 files changed, 244 insertions, 0 deletions
diff --git a/src/com/jogamp/graph/geom/AABBox.java b/src/com/jogamp/graph/geom/AABBox.java
new file mode 100644
index 000000000..9199e5253
--- /dev/null
+++ b/src/com/jogamp/graph/geom/AABBox.java
@@ -0,0 +1,244 @@
+/**
+ * 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 com.jogamp.graph.geom;
+
+import jogamp.graph.math.VectorFloatUtil;
+
+/**
+ * Axis Aligned Bounding Box.
+ */
+public class AABBox {
+	private float[] low = {Float.MAX_VALUE,Float.MAX_VALUE,Float.MAX_VALUE};
+	private float[] high = {-1*Float.MAX_VALUE,-1*Float.MAX_VALUE,-1*Float.MAX_VALUE};
+	private float[] center = new float[3];
+
+	public AABBox() {}
+
+	public AABBox(float lx, float ly, float lz,
+			float hx, float hy, float hz)
+	{
+		setLow(lx, ly, lz);
+		setHigh(hx, hy, hz);
+
+		computeCenter();
+	}
+
+
+	public AABBox(float[] low, float[] high)
+	{
+		this.low = low;
+		this.high = high;
+
+		computeCenter();
+	}
+
+	public float[] getHigh() 
+	{
+		return high;
+	}
+	public void setHigh(float hx, float hy, float hz) 
+	{
+		this.high[0] = hx;
+		this.high[1] = hy;
+		this.high[2] = hz;
+	}
+	public float[] getLow() 
+	{
+		return low;
+	}
+	public void setLow(float lx, float ly, float lz) 
+	{
+		this.low[0] = lx;
+		this.low[1] = ly;
+		this.low[2] = lz;
+	}
+
+	public void resize(AABBox newBox)
+	{
+		float[] newLow = newBox.getLow();
+		float[] newHigh = newBox.getHigh();
+
+		/** test low */
+		if (newLow[0] < low[0])
+			low[0] = newLow[0];
+		if (newLow[1] < low[1])
+			low[1] = newLow[1];
+		if (newLow[2] < low[2])
+			low[2] = newLow[2];
+
+		/** test high */
+		if (newHigh[0] > high[0])
+			high[0] = newHigh[0];
+		if (newHigh[1] > high[1])
+			high[1] = newHigh[1];
+		if (newHigh[2] > high[2])
+			high[2] = newHigh[2];
+
+		computeCenter();
+	}
+
+	private void computeCenter()
+	{
+		center[0] = (high[0] + low[0])/2;
+		center[1] = (high[1] + low[1])/2;
+		center[2] = (high[2] + low[2])/2;
+	}
+
+	public void resize(float x, float y, float z)
+	{	
+		/** test low */
+		if (x < low[0])
+			low[0] = x;
+		if (y < low[1])
+			low[1] = y;
+		if (z < low[2])
+			low[2] = z;
+
+		/** test high */
+		if (x > high[0])
+			high[0] = x;
+		if (y > high[1])
+			high[1] = y;
+		if (z > high[2])
+			high[2] = z;
+		
+		computeCenter();
+	}
+
+	public boolean contains(float x, float y){
+		if(x<low[0] || x>high[0]){
+			return false;
+		}
+		if(y<low[1]|| y>high[1]){
+			return false;
+		}
+		return true;
+	}
+	
+	public boolean contains(float x, float y, float z){
+		if(x<low[0] || x>high[0]){
+			return false;
+		}
+		if(y<low[1]|| y>high[1]){
+			return false;
+		}
+		if(z<low[2] || z>high[2]){
+			return false;
+		}
+		return true;
+	}
+	
+	/**
+	 * @return true if area is empty
+	 */
+	boolean isEmpty() {
+		return getWidth() <=0 || getHeight() <= 0 ;
+	}
+	
+    public boolean intersects(double x, double y, double w, double h) {
+    	if (w <= 0 || h <= 0) {
+    	    return false;
+    	}
+    	
+    	final float _w = getWidth();
+    	final float _h = getHeight();    	
+    	if (_w <= 0 || _h <= 0) {
+    	    return false;
+    	}
+    	
+    	final float x0 = getX();
+    	final float y0 = getY();
+    	return (x + w > x0 &&
+    		    y + h > y0 &&
+    		    x < x0 + _w &&
+    	        y < y0 + _h);
+    }
+
+	
+	public float getSize(){
+		return VectorFloatUtil.computeLength(low, high);
+	}
+
+	public float[] getCenter() {
+		return center;
+	}
+
+	public void setCenter(float[] center) {
+		this.center = center;
+	}
+
+	public void setHigh(float[] high) {
+		this.high = high;
+	}
+
+	public void setLow(float[] low) {
+		this.low = low;
+	}
+	
+	public void scale(float size) {
+		float[] diffH = new float[3];
+		diffH[0] = high[0] - center[0];
+		diffH[1] = high[1] - center[1];
+		diffH[2] = high[2] - center[2];
+		
+		diffH = VectorFloatUtil.scale(diffH, size);
+		
+		float[] diffL = new float[3];
+		diffL[0] = low[0] - center[0];
+		diffL[1] = low[1] - center[1];
+		diffL[2] = low[2] - center[2];
+		
+		diffL = VectorFloatUtil.scale(diffL, size);
+		
+		high = VectorFloatUtil.vectorAdd(center, diffH);
+		low = VectorFloatUtil.vectorAdd(center, diffL);
+	}
+
+	public float getX() {
+		return low[0];
+	}
+	
+	public float getY() {
+		return low[1];
+	}
+	
+	public float getWidth(){
+		return high[0] - low[0];
+	}
+	
+	public float getHeight() {
+		return high[1] - low[1];
+	}
+	
+	public float getDepth() {
+		return high[2] - low[2];
+	}
+	public AABBox clone(){
+		return new AABBox(this.low, this.high);
+	}
+}