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) 1990,91,92 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 contains the declaration of the Calculator engine 00048 | 00049 | Classes: 00050 | SoCalculator 00051 | 00052 | Author(s) : Ronen Barzel 00053 | 00054 ______________ S I L I C O N G R A P H I C S I N C . ____________ 00055 _______________________________________________________________________ 00056 */ 00057 00058 #ifndef _SO_CALCULATOR_ 00059 #define _SO_CALCULATOR_ 00060 00061 #include <Inventor/system/SbSystem.h> 00062 #include <Inventor/engines/SoSubEngine.h> 00063 #include <Inventor/fields/SoMFFloat.h> 00064 #include <Inventor/fields/SoMFString.h> 00065 #include <Inventor/fields/SoMFVec3f.h> 00066 00067 class SoCalcParser; 00068 00071 00202 00203 00204 class INVENTOR_API SoCalculator : public SoEngine { 00205 00206 SO_ENGINE_HEADER(SoCalculator); 00207 00208 public: 00209 00211 00212 00214 SoMFFloat a,b,c,d,e,f,g,h; 00215 00217 SoMFVec3f A,B,C,D,E,F,G,H; 00218 00220 SoMFString expression; 00221 00223 00225 00226 00227 SoEngineOutput oa,ob,oc,od; 00229 SoEngineOutput oA,oB,oC,oD; 00230 00232 00234 SoCalculator(); 00235 00236 SoINTERNAL public: 00237 00238 static void initClass(); 00239 00240 protected: 00241 virtual void inputChanged(SoField *whichInput); 00242 00243 private: 00245 ~SoCalculator(); 00246 00248 virtual void evaluate(); 00249 00250 SoCalcParser *parser; 00251 SbBool reparse; 00252 00254 float va, vb, vc, vd, ve, vf, vg, vh, ova, ovb, ovc, ovd; 00255 float ta, tb, tc, td, te, tf, tg, th; 00256 SbVec3f vA, vB, vC, vD, vE, vF, vG, vH, ovA, ovB, ovC, ovD; 00257 SbVec3f tA, tB, tC, tD, tE, tF, tG, tH; 00258 static float *lookupFloat(void *, const char *); 00259 static SbVec3f *lookupVec3f(void *, const char *); 00260 }; 00261 00262 #endif /* _SO_CALCULATOR_ */