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00002 * Copyright 1991-1996, Silicon Graphics, Inc. 00003 * ALL RIGHTS RESERVED 00004 * 00005 * UNPUBLISHED -- Rights reserved under the copyright laws of the United 00006 * States.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) 1996-2020 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_COORDINATE_ELEMENT 00051 #define _SO_COORDINATE_ELEMENT 00052 00053 #include <Inventor/SbBasic.h> 00054 #include <Inventor/SbLinear.h> 00055 #include <Inventor/elements/SoReplacedElement.h> 00056 00057 00075 SoEXTENDER_Documented class SoCoordinateElement : public SoReplacedElement { 00076 00077 SO_ELEMENT_HEADER(SoCoordinateElement); 00078 00079 public: 00080 00085 static void set3(SoState *state, SoNode *node, 00086 int32_t numCoords, const SbVec3f *coords); 00091 static void set4(SoState *state, SoNode *node, 00092 int32_t numCoords, const SbVec4f *coords); 00093 00097 static const SoCoordinateElement * getInstance(SoState *state) 00098 {return getConstElement<SoCoordinateElement>(state);} 00099 00103 int32_t getNum() const { return numCoords; } 00104 00109 SbBool is3D() const { return coordsAre3D; } 00110 00116 const SbVec3f & get3(int index) const; 00122 const SbVec4f & get4(int index) const; 00123 00128 const SbVec3f * getCoord3() const { return coords3 ; } 00129 00134 const SbVec4f * getCoord4() const { return coords4 ; } 00135 00139 static SbVec3f getDefault3() { return SbVec3f(0, 0, 0); } 00143 static SbVec4f getDefault4() { return SbVec4f(0, 0, 0, 1); } 00144 00148 virtual void print(FILE *fp) const; 00149 00150 private: 00151 00153 virtual void init(SoState *state); 00154 00155 private: 00156 // Initializes the SoCoordinateElement class 00157 static void initClass(); 00158 static void exitClass(); 00159 00160 // check if coord is a real user coord or the default3 value 00161 bool isEmpty() const; 00162 00163 private: 00164 int32_t numCoords; 00165 const SbVec3f *coords3; 00166 const SbVec4f *coords4; 00167 SbBool coordsAre3D; 00168 00169 virtual ~SoCoordinateElement(); 00170 00171 private: 00172 // This stores a pointer to the default coordinates so that we can 00173 // set "coords3" to point to them if no other values have been set. 00174 static SbVec3f *defaultCoord3; 00175 00176 SbVec3f convert3; // To convert from 4-D to 3-D 00177 SbVec4f convert4; // To convert from 3-D to 4-D 00178 }; 00179 00180 #endif /* _SO_COORDINATE_ELEMENT */ 00181 00182 00183