Coin Logo http://www.sim.no
http://www.coin3d.org

SoTransferFunction.h

00001 #ifndef COIN_SOTRANSFERFUNCTION_H
00002 #define COIN_SOTRANSFERFUNCTION_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the SIM Voleon visualization library.
00007  *  Copyright (C) 2003-2004 by Systems in Motion.  All rights reserved.
00008  *
00009  *  This library is free software; you can redistribute it and/or
00010  *  modify it under the terms of the GNU General Public License
00011  *  ("GPL") version 2 as published by the Free Software Foundation.
00012  *  See the file LICENSE.GPL at the root directory of this source
00013  *  distribution for additional information about the GNU GPL.
00014  *
00015  *  For using SIM Voleon with software that can not be combined with
00016  *  the GNU GPL, and for taking advantage of the additional benefits
00017  *  of our support services, please contact Systems in Motion about
00018  *  acquiring a SIM Voleon Professional Edition License.
00019  *
00020  *  See <URL:http://www.coin3d.org/> for more information.
00021  *
00022  *  Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
00023  *  <URL:http://www.sim.no/>.
00024  *
00025 \**************************************************************************/
00026 
00027 #include <VolumeViz/nodes/SoVolumeRendering.h>
00028 #include <Inventor/fields/SoMFFloat.h>
00029 #include <Inventor/fields/SoSFEnum.h>
00030 #include <Inventor/fields/SoSFInt32.h>
00031 #include <Inventor/fields/SoSFUInt32.h>
00032 
00033 // *************************************************************************
00034 
00035 class SIMVOLEON_DLL_API SoTransferFunction : public SoVolumeRendering {
00036   typedef SoVolumeRendering inherited;
00037 
00038   SO_NODE_HEADER(SoTransferFunction);
00039 
00040 public:
00041   static void initClass(void);
00042   SoTransferFunction(void);
00043 
00044   enum PredefColorMap {
00045     NONE = 0,
00046     GREY,
00047     GRAY = GREY,
00048     TEMPERATURE,
00049     PHYSICS,
00050     STANDARD,
00051     GLOW,
00052     BLUE_RED,
00053     SEISMIC
00054   };
00055 
00056   enum ColorMapType {
00057     ALPHA,
00058     LUM_ALPHA,
00059     RGBA
00060   };
00061 
00062   SoSFInt32 shift;
00063   SoSFInt32 offset;
00064   SoSFEnum predefColorMap;
00065   SoSFEnum colorMapType;
00066   SoMFFloat colorMap;
00067 
00068   void reMap(int low, int high);
00069   SbBool hasTransparency(void) const;
00070 
00071 protected:
00072   ~SoTransferFunction();
00073 
00074   virtual void doAction(SoAction * action);
00075   virtual void GLRender(SoGLRenderAction * action);
00076   virtual void callback(SoCallbackAction * action);
00077   virtual void pick(SoPickAction * action);
00078 
00079 private:
00080   // These were added to make it possible to control the narrowing of
00081   // the transfer function from the iv-file. They provide the same
00082   // functionality as the reMap() function.
00083   //
00084   // These are "unofficial", private fields, as they are not available
00085   // in TGS VolumeViz, which we want to stay compatible with.
00086   SoSFUInt32 remapLow;
00087   SoSFUInt32 remapHigh;
00088 
00089   friend class SoTransferFunctionP;
00090   class SoTransferFunctionP * pimpl;
00091 };
00092 
00093 // *************************************************************************
00094 
00095 #endif // !COIN_SOTRANSFERFUNCTION_H

Copyright © 1998-2004 by Systems in Motion AS. All rights reserved.

Generated on Wed Aug 22 00:21:48 2007 for SIMVoleon by Doxygen. 1.5.2