Source Code Cross Referenced for GeometryInfoGenerator.java in  » 6.0-JDK-Modules » java-3d » org » jdesktop » j3d » utils » geometry » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » 6.0 JDK Modules » java 3d » org.jdesktop.j3d.utils.geometry 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * $RCSfile: GeometryInfoGenerator.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 17:17:01 $
042:         * $State: Exp $
043:         */
044:
045:        package org.jdesktop.j3d.utils.geometry;
046:
047:        import javax.media.j3d.GeometryArray;
048:        import javax.media.j3d.GeometryStripArray;
049:        import javax.media.j3d.TriangleFanArray;
050:        import javax.media.j3d.TriangleStripArray;
051:        import javax.media.j3d.TriangleArray;
052:        import javax.media.j3d.QuadArray;
053:        import javax.media.j3d.IndexedGeometryArray;
054:        import javax.media.j3d.IndexedGeometryStripArray;
055:        import javax.media.j3d.IndexedQuadArray;
056:        import javax.media.j3d.IndexedTriangleArray;
057:        import javax.media.j3d.IndexedTriangleFanArray;
058:        import javax.media.j3d.IndexedTriangleStripArray;
059:
060:        import com.sun.j3d.utils.geometry.GeometryInfo;
061:
062:        /** 
063:         * Populate a GeometryInfo object from the Geometry provided
064:         *
065:         * @author Paul Byrne
066:         * @version	1.5, 01/18/02
067:         */
068:        public class GeometryInfoGenerator extends Object {
069:
070:            public static void create(GeometryInfo geomInfo,
071:                    GeometryArray geomArray) {
072:                if (geomArray instanceof  GeometryStripArray)
073:                    create(geomInfo, (GeometryStripArray) geomArray);
074:                else if (geomArray instanceof  TriangleArray) {
075:                    geomInfo.reset(GeometryInfo.TRIANGLE_ARRAY);
076:                    processGeometryArray(geomInfo, geomArray);
077:                } else if (geomArray instanceof  QuadArray) {
078:                    geomInfo.reset(GeometryInfo.QUAD_ARRAY);
079:                    processGeometryArray(geomInfo, geomArray);
080:                } else if (geomArray instanceof  IndexedGeometryArray)
081:                    create(geomInfo, (IndexedGeometryArray) geomArray);
082:                else
083:                    throw new RuntimeException("Unsupported Geometry type "
084:                            + geomArray.getClass().getName());
085:
086:            }
087:
088:            private static void create(GeometryInfo geomInfo,
089:                    GeometryStripArray geomArray) {
090:                if (geomArray instanceof  TriangleFanArray) {
091:                    geomInfo.reset(GeometryInfo.TRIANGLE_FAN_ARRAY);
092:                } else if (geomArray instanceof  TriangleStripArray) {
093:                    geomInfo.reset(GeometryInfo.TRIANGLE_STRIP_ARRAY);
094:                } else
095:                    throw new RuntimeException("Unsupported Geometry type "
096:                            + geomArray.getClass().getName());
097:
098:                processGeometryArray(geomInfo, geomArray);
099:                processStripArray(geomInfo, geomArray);
100:            }
101:
102:            private static void create(GeometryInfo geomInfo,
103:                    IndexedGeometryArray geomArray) {
104:                if (geomArray instanceof  IndexedQuadArray) {
105:                    geomInfo.reset(GeometryInfo.QUAD_ARRAY);
106:                } else if (geomArray instanceof  IndexedTriangleArray) {
107:                    geomInfo.reset(GeometryInfo.TRIANGLE_ARRAY);
108:                } else if (geomArray instanceof  IndexedTriangleFanArray) {
109:                    geomInfo.reset(GeometryInfo.TRIANGLE_FAN_ARRAY);
110:                    processIndexStripArray(geomInfo,
111:                            (IndexedGeometryStripArray) geomArray);
112:                } else if (geomArray instanceof  IndexedTriangleStripArray) {
113:                    geomInfo.reset(GeometryInfo.TRIANGLE_STRIP_ARRAY);
114:                    processIndexStripArray(geomInfo,
115:                            (IndexedGeometryStripArray) geomArray);
116:                }
117:
118:                processGeometryArray(geomInfo, geomArray);
119:                processIndexedArray(geomInfo, geomArray);
120:            }
121:
122:            private static void processGeometryArray(GeometryInfo geomInfo,
123:                    GeometryArray geomArray) {
124:                int vertexFormat = geomArray.getVertexFormat();
125:                int vertexCount = geomArray.getVertexCount();
126:
127:                double[] coords = new double[vertexCount * 3];
128:                geomArray.getCoordinates(0, coords);
129:                geomInfo.setCoordinates(coords);
130:
131:                if ((vertexFormat & GeometryArray.NORMALS) == GeometryArray.NORMALS) {
132:                    float[] normals = new float[vertexCount * 3];
133:                    geomArray.getNormals(0, normals);
134:                    geomInfo.setNormals(normals);
135:                }
136:
137:                if ((vertexFormat & GeometryArray.COLOR_4) == GeometryArray.COLOR_4) {
138:                    float[] colors = new float[vertexCount * 4];
139:                    geomArray.getColors(0, colors);
140:                    geomInfo.setColors4(colors);
141:                } else if ((vertexFormat & GeometryArray.COLOR_3) != 0) {
142:                    float[] colors = new float[vertexCount * 3];
143:                    geomArray.getColors(0, colors);
144:                    geomInfo.setColors3(colors);
145:                }
146:
147:                if ((vertexFormat & GeometryArray.TEXTURE_COORDINATE_3) == GeometryArray.TEXTURE_COORDINATE_3) {
148:                    float[] tex = new float[vertexCount * 3];
149:                    geomArray.getTextureCoordinates(0, 0, tex);
150:                    geomInfo.setTextureCoordinates(0, tex);
151:                } else if ((vertexFormat & GeometryArray.TEXTURE_COORDINATE_2) != 0) {
152:                    float[] tex = new float[vertexCount * 2];
153:                    geomArray.getTextureCoordinates(0, 0, tex);
154:                    geomInfo.setTextureCoordinates(0, tex);
155:                }
156:
157:            }
158:
159:            private static void processIndexedArray(GeometryInfo geomInfo,
160:                    IndexedGeometryArray geomArray) {
161:                int indexCount = geomArray.getIndexCount();
162:                int vertexFormat = geomArray.getVertexFormat();
163:
164:                int[] coordI = new int[indexCount];
165:
166:                geomArray.getCoordinateIndices(0, coordI);
167:                geomInfo.setCoordinateIndices(coordI);
168:
169:                if ((vertexFormat & GeometryArray.NORMALS) != 0) {
170:                    int[] normalI = new int[indexCount];
171:                    geomArray.getNormalIndices(0, normalI);
172:                    geomInfo.setNormalIndices(normalI);
173:                }
174:
175:                if ((vertexFormat & GeometryArray.COLOR_3) != 0
176:                        || (vertexFormat & GeometryArray.COLOR_4) != 0) {
177:                    int[] colorI = new int[indexCount];
178:                    geomArray.getColorIndices(0, colorI);
179:                    geomInfo.setColorIndices(colorI);
180:                }
181:
182:                if ((vertexFormat & GeometryArray.TEXTURE_COORDINATE_2) != 0
183:                        || (vertexFormat & GeometryArray.TEXTURE_COORDINATE_3) != 0) {
184:                    int[] texI = new int[indexCount];
185:                    geomArray.getTextureCoordinateIndices(0, 0, texI);
186:                    geomInfo.setTextureCoordinateIndices(0, texI);
187:                }
188:
189:            }
190:
191:            private static void processStripArray(GeometryInfo geomInfo,
192:                    GeometryStripArray geomArray) {
193:                int[] strips = new int[geomArray.getNumStrips()];
194:                geomArray.getStripVertexCounts(strips);
195:
196:                geomInfo.setStripCounts(strips);
197:            }
198:
199:            private static void processIndexStripArray(GeometryInfo geomInfo,
200:                    IndexedGeometryStripArray geomArray) {
201:                int[] strips = new int[geomArray.getNumStrips()];
202:                geomArray.getStripIndexCounts(strips);
203:
204:                geomInfo.setStripCounts(strips);
205:            }
206:        }
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