00001 /*======================================================================= 00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States. Use of a copyright notice is precautionary only and does not 00007 * imply publication or disclosure. 00008 * 00009 * U.S. GOVERNMENT RESTRICTED RIGHTS LEGEND: 00010 * Use, duplication or disclosure by the Government is subject to restrictions 00011 * as set forth in FAR 52.227.19(c)(2) or subparagraph (c)(1)(ii) of the Rights 00012 * in Technical Data and Computer Software clause at DFARS 252.227-7013 and/or 00013 * in similar or successor clauses in the FAR, or the DOD or NASA FAR 00014 * Supplement. Contractor/manufacturer is Silicon Graphics, Inc., 00015 * 2011 N. Shoreline Blvd. Mountain View, CA 94039-7311. 00016 * 00017 * THE CONTENT OF THIS WORK CONTAINS CONFIDENTIAL AND PROPRIETARY 00018 * INFORMATION OF SILICON GRAPHICS, INC. ANY DUPLICATION, MODIFICATION, 00019 * DISTRIBUTION, OR DISCLOSURE IN ANY FORM, IN WHOLE, OR IN PART, IS STRICTLY 00020 * PROHIBITED WITHOUT THE PRIOR EXPRESS WRITTEN PERMISSION OF SILICON 00021 * GRAPHICS, INC. 00022 **=======================================================================*/ 00023 /*======================================================================= 00024 ** Author : Paul S. Strauss (MMM yyyy) 00025 **=======================================================================*/ 00026 /*======================================================================= 00027 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00028 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00029 *** *** 00030 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00031 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00032 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00033 *** *** 00034 *** RESTRICTED RIGHTS LEGEND *** 00035 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00036 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00037 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00038 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00039 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00040 *** *** 00041 *** COPYRIGHT (C) 1996-2021 BY FEI S.A.S, *** 00042 *** BORDEAUX, FRANCE *** 00043 *** ALL RIGHTS RESERVED *** 00044 **=======================================================================*/ 00045 /*======================================================================= 00046 ** Modified by : VSG (MMM YYYY) 00047 **=======================================================================*/ 00048 00049 00050 #ifndef _SO_POINT_SET_ 00051 #define _SO_POINT_SET_ 00052 00053 #include <Inventor/fields/SoSFInt32.h> 00054 #include <Inventor/nodes/SoNonIndexedShape.h> 00055 #include <Inventor/SbPImpl.h> 00056 00057 class SoState; 00058 class SoTextureCoordinateBundle; 00059 class SoTextureCoordinate3Bundle; 00060 00061 SO_PIMPL_PUBLIC_DECLARATION(SoPointSet) 00062 00063 00064 // 00065 // Class: SoPointSet 00066 // 00067 // Set of points, using the current coordinates. The startIndex field 00068 // gives the starting coordinate index for the first point. The number of 00069 // points to draw is determined by the numPoints field. 00070 // 00072 00073 // This value, when used in the numPoints field, means use the rest of 00074 // the coordinates as points 00075 #define SO_POINT_SET_USE_REST_OF_POINTS (-1) 00076 00162 class SoPointSet : public SoNonIndexedShape 00163 { 00164 SO_NODE_HEADER(SoPointSet); 00165 SO_PIMPL_PUBLIC_HEADER(SoPointSet) 00166 00167 public: 00171 SoSFInt32 numPoints; 00172 00176 SoPointSet(); 00177 00178 private: 00180 virtual void GLRender( SoGLRenderAction* action ); 00181 00186 virtual void getBoundingBox( SoGetBoundingBoxAction* action ); 00187 00189 virtual void getPrimitiveCount( SoGetPrimitiveCountAction* action ); 00190 00191 // Computes bounding box 00192 virtual void computeBBox( SoAction* action, SbBox3f& box, SbVec3f& center ); 00193 00194 private: 00195 00197 static void initClass(); 00199 static void exitClass(); 00200 00201 // return num vertices 00202 virtual int getNumVert( SoState* state = NULL ); 00203 00205 virtual void notify( SoNotList* list ); 00206 00207 //return number of primitives 00208 virtual int getNumPrim( SoState* state = NULL ); 00209 00210 private: 00211 // Generates points representing point set 00212 virtual void generatePrimitives( SoAction* action ); 00213 00214 // check if normal should be generated or not. 00215 virtual void shouldGenerateNormals( SoGLRenderAction* action, const SoShapeStyleElement *shapeStyle ); 00216 00217 // No tangent generation 00218 virtual void shouldGenerateTangents( SoGLRenderAction* /*action*/, const SoShapeStyleElement* /*shapeStyle*/ ) {} 00219 00220 // check if glrender should be called 00221 virtual SbBool shouldGLRender( SoGLRenderAction* action, SbBool isPointsOrLines = FALSE ); 00222 00223 //Free memory 00224 virtual void exitRender( SoState* state, 00225 int stateFlag, 00226 SoTextureCoordinateBundle* tcb, 00227 SoTextureCoordinate3Bundle* tc3b ); 00228 00229 // count the number of primitives in the shape 00230 virtual void countPrim( SoState* state = NULL ); 00231 00232 // really do the rendering part 00233 virtual void doRendering( SoGLRenderAction* action, const SoShapeStyleElement* shapeStyle ); 00234 00235 // says that rendering is PointOrLine 00236 virtual SbBool isRenderingPointsOrLines( SoGLRenderAction* action ); 00237 00238 // Overrides standard method to create an SoPointDetail instance 00239 virtual SoDetail* createPointDetail( SoRayPickAction* action, 00240 const SoPrimitiveVertex* v, 00241 SoPickedPoint* pp); 00242 00244 virtual ~SoPointSet(); 00245 00246 }; 00247 00248 inline SbBool 00249 SoPointSet::isRenderingPointsOrLines( SoGLRenderAction * ) 00250 { 00251 return TRUE; 00252 } 00253 00254 #endif /* _SO_POINT_SET_ */ 00255 00256