001: /*
002: * $RCSfile: SphereGroup.java,v $
003: *
004: * Copyright (c) 2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * Redistribution and use in source and binary forms, with or without
007: * modification, are permitted provided that the following conditions
008: * are met:
009: *
010: * - Redistribution of source code must retain the above copyright
011: * notice, this list of conditions and the following disclaimer.
012: *
013: * - Redistribution in binary form must reproduce the above copyright
014: * notice, this list of conditions and the following disclaimer in
015: * the documentation and/or other materials provided with the
016: * distribution.
017: *
018: * Neither the name of Sun Microsystems, Inc. or the names of
019: * contributors may be used to endorse or promote products derived
020: * from this software without specific prior written permission.
021: *
022: * This software is provided "AS IS," without a warranty of any
023: * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
024: * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
025: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
026: * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
027: * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
028: * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
029: * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
030: * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
031: * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
032: * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
033: * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
034: * POSSIBILITY OF SUCH DAMAGES.
035: *
036: * You acknowledge that this software is not designed, licensed or
037: * intended for use in the design, construction, operation or
038: * maintenance of any nuclear facility.
039: *
040: * $Revision: 1.2 $
041: * $Date: 2007/02/09 17:21:31 $
042: * $State: Exp $
043: */
044:
045: package org.jdesktop.j3d.examples.alternate_appearance;
046:
047: import javax.media.j3d.*;
048: import javax.vecmath.*;
049: import com.sun.j3d.utils.geometry.*;
050:
051: public class SphereGroup extends Group {
052: Shape3D[] shapes;
053: int numShapes = 0;
054:
055: // Constructors
056: public SphereGroup() {
057: // radius x,y spacing x,y count appearance
058: this (0.25f, 0.75f, 0.75f, 5, 5, null, false);
059: }
060:
061: public SphereGroup(Appearance app) {
062: // radius x,y spacing x,y count appearance
063: this (0.25f, 0.75f, 0.75f, 5, 5, app, false);
064: }
065:
066: public SphereGroup(float radius, float xSpacing, float ySpacing,
067: int xCount, int yCount, boolean overrideflag) {
068: this (radius, xSpacing, ySpacing, xCount, yCount, null,
069: overrideflag);
070: }
071:
072: public SphereGroup(float radius, float xSpacing, float ySpacing,
073: int xCount, int yCount, Appearance app, boolean overrideflag) {
074: if (app == null) {
075: app = new Appearance();
076: Material material = new Material();
077: material.setDiffuseColor(new Color3f(0.8f, 0.8f, 0.8f));
078: material.setSpecularColor(new Color3f(0.0f, 0.0f, 0.0f));
079: material.setShininess(0.0f);
080: app.setMaterial(material);
081: }
082:
083: double xStart = -xSpacing * (double) (xCount - 1) / 2.0;
084: double yStart = -ySpacing * (double) (yCount - 1) / 2.0;
085:
086: Sphere sphere = null;
087: TransformGroup trans = null;
088: Transform3D t3d = new Transform3D();
089: Vector3d vec = new Vector3d();
090: double x, y = yStart, z = 0.0;
091: shapes = new Shape3D[xCount * yCount];
092: for (int i = 0; i < yCount; i++) {
093: x = xStart;
094: for (int j = 0; j < xCount; j++) {
095: vec.set(x, y, z);
096: t3d.setTranslation(vec);
097: trans = new TransformGroup(t3d);
098: addChild(trans);
099:
100: sphere = new Sphere(radius, // sphere radius
101: Primitive.GENERATE_NORMALS, // generate normals
102: 16, // 16 divisions radially
103: app); // it's appearance
104: trans.addChild(sphere);
105: x += xSpacing;
106: shapes[numShapes] = sphere.getShape();
107: if (overrideflag)
108: shapes[numShapes]
109: .setCapability(Shape3D.ALLOW_APPEARANCE_OVERRIDE_WRITE);
110: numShapes++;
111: }
112: y += ySpacing;
113: }
114: }
115:
116: Shape3D[] getShapes() {
117: return shapes;
118: }
119:
120: }
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