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SoCalculator.h

00001 /**************************************************************************\
00002  *
00003  *  This file is part of the Coin 3D visualization library.
00004  *  Copyright (C) 1998-2007 by Systems in Motion.  All rights reserved.
00005  *
00006  *  This library is free software; you can redistribute it and/or
00007  *  modify it under the terms of the GNU General Public License
00008  *  ("GPL") version 2 as published by the Free Software Foundation.
00009  *  See the file LICENSE.GPL at the root directory of this source
00010  *  distribution for additional information about the GNU GPL.
00011  *
00012  *  For using Coin with software that can not be combined with the GNU
00013  *  GPL, and for taking advantage of the additional benefits of our
00014  *  support services, please contact Systems in Motion about acquiring
00015  *  a Coin Professional Edition License.
00016  *
00017  *  See http://www.coin3d.org/ for more information.
00018  *
00019  *  Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
00020  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00021  *
00022 \**************************************************************************/
00023 
00024 #ifndef COIN_SOCALCULATOR_H
00025 #define COIN_SOCALCULATOR_H
00026 
00027 #include <Inventor/engines/SoSubEngine.h>
00028 #include <Inventor/engines/SoEngineOutput.h>
00029 #include <Inventor/fields/SoMFFloat.h>
00030 #include <Inventor/fields/SoMFVec3f.h>
00031 #include <Inventor/fields/SoMFString.h>
00032 #include <Inventor/lists/SbList.h>
00033 
00034 class SoCalculatorP;
00035 
00036 class COIN_DLL_API SoCalculator : public SoEngine {
00037   typedef SoEngine inherited;
00038 
00039   SO_ENGINE_HEADER(SoCalculator);
00040 
00041 public:
00042   // inputs
00043   SoMFFloat a, b, c, d, e, f, g, h;
00044   SoMFVec3f A, B, C, D, E, F, G, H;
00045   SoMFString expression;
00046 
00047   // outputs
00048   SoEngineOutput oa, ob, oc, od; // (SoMFFloat)
00049   SoEngineOutput oA, oB, oC, oD; // (SoMFVec3f)
00050 
00051   SoCalculator(void);
00052 
00053   static void initClass(void);
00054 
00055 protected:
00056   ~SoCalculator(void);
00057 
00058   virtual void inputChanged(SoField * which);
00059 
00060 private:
00061   virtual void evaluate(void);
00062 
00063   static void readfieldcb(const char *name, float *data, void *cbdata);
00064   static void writefieldcb(const char *name, float *data, int comp, void *cbdata);
00065 
00066   void evaluateExpression(struct so_eval_node *node, const int fieldidx);
00067   void findUsed(struct so_eval_node *node, char *inused, char *outused);
00068 
00069   SoCalculatorP * pimpl;
00070 };
00071 
00072 #endif // !COIN_SOCALCULATOR_H

Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.

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