Open Inventor Reference
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00001 /* 00002 * 00003 * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved. 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Lesser General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2.1 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Lesser General Public License for more details. 00014 * 00015 * Further, this software is distributed without any warranty that it is 00016 * free of the rightful claim of any third person regarding infringement 00017 * or the like. Any license provided herein, whether implied or 00018 * otherwise, applies only to this software file. Patent licenses, if 00019 * any, provided herein do not apply to combinations of this program with 00020 * other software, or any other product whatsoever. 00021 * 00022 * You should have received a copy of the GNU Lesser General Public 00023 * License along with this library; if not, write to the Free Software 00024 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00025 * 00026 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 00027 * Mountain View, CA 94043, or: 00028 * 00029 * http://www.sgi.com 00030 * 00031 * For further information regarding this notice, see: 00032 * 00033 * http://oss.sgi.com/projects/GenInfo/NoticeExplan/ 00034 * 00035 */ 00036 00037 00038 /* 00039 * Copyright (C) 1990,91 Silicon Graphics, Inc. 00040 * 00041 _______________________________________________________________________ 00042 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00043 | 00044 | $Revision: 1.1.1.1 $ 00045 | 00046 | Description: 00047 | This file defines the SoIndexedShape node class. 00048 | 00049 | Author(s) : Paul S. Strauss 00050 | 00051 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00052 _______________________________________________________________________ 00053 */ 00054 00055 #ifndef _SO_INDEXED_SHAPE_ 00056 #define _SO_INDEXED_SHAPE_ 00057 00058 #include <Inventor/fields/SoMFInt32.h> 00059 #include <Inventor/nodes/SoVertexShape.h> 00060 00061 00064 00127 00128 00129 class INVENTOR_API SoIndexedShape : public SoVertexShape { 00130 00131 SO_NODE_ABSTRACT_HEADER(SoIndexedShape); 00132 00133 public: 00135 00136 00141 SoMFInt32 coordIndex; 00143 SoMFInt32 materialIndex; 00145 SoMFInt32 normalIndex; 00147 SoMFInt32 textureCoordIndex; 00148 00150 00151 SoINTERNAL public: 00152 static void initClass(); 00153 00154 protected: 00156 SoIndexedShape(); 00157 00164 virtual void computeBBox(SoAction *action, SbBox3f &box, 00165 SbVec3f ¢er); 00166 00168 static SbBool areTexCoordsIndexed(SoAction *action); 00169 00173 int getNumVerts(int startCoord); 00174 00180 void setupIndices(int numParts, int numFaces, 00181 SbBool needNormals, SbBool needTexCoords); 00182 00184 const int32_t * getNormalIndices() 00185 { return (normalI ? normalI : consecutiveIndices); } 00186 const int32_t * getColorIndices() 00187 { return (colorI ? colorI : consecutiveIndices); } 00188 const int32_t * getTexCoordIndices() 00189 { return (texCoordI ? texCoordI : consecutiveIndices); } 00190 00192 virtual void notify(SoNotList *list); 00193 00194 virtual ~SoIndexedShape(); 00195 00196 private: 00200 void allocateSequential(int howMany); 00201 int32_t* allocateSequentialWithHoles(); 00202 00204 const int32_t *texCoordI; 00205 const int32_t *colorI; 00206 const int32_t *normalI; 00207 static int32_t *consecutiveIndices; 00208 static int numConsecutiveIndicesAllocated; 00209 00210 unsigned char materialBinding; 00211 unsigned char normalBinding; 00212 unsigned char texCoordBinding; 00213 }; 00214 00215 #endif /* _SO_INDEXED_SHAPE_ */