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SbProjector.h

00001 #ifndef COIN_SBPROJECTOR_H
00002 #define COIN_SBPROJECTOR_H
00003 
00004 /**************************************************************************\
00005  *
00006  *  This file is part of the Coin 3D visualization library.
00007  *  Copyright (C) 1998-2007 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 Coin with software that can not be combined with the GNU
00016  *  GPL, and for taking advantage of the additional benefits of our
00017  *  support services, please contact Systems in Motion about acquiring
00018  *  a Coin Professional Edition License.
00019  *
00020  *  See http://www.coin3d.org/ for more information.
00021  *
00022  *  Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
00023  *  http://www.sim.no/  sales@sim.no  coin-support@coin3d.org
00024  *
00025 \**************************************************************************/
00026 
00027 #include <Inventor/SbVec3f.h>
00028 #include <Inventor/SbLine.h>
00029 #include <Inventor/SbMatrix.h>
00030 #include <Inventor/SbViewVolume.h>
00031 
00032 class SbVec2f;
00033 
00034 class COIN_DLL_API SbProjector {
00035 public:
00036   virtual SbVec3f project(const SbVec2f & point) = 0;
00037   virtual void setViewVolume(const SbViewVolume & vol);
00038   const SbViewVolume & getViewVolume(void) const;
00039   virtual void setWorkingSpace(const SbMatrix & space);
00040   const SbMatrix & getWorkingSpace(void) const;
00041   virtual SbProjector * copy(void) const = 0;
00042 
00043 protected:
00044   SbProjector(void);
00045   virtual ~SbProjector() { }
00046 
00047   SbLine getWorkingLine(const SbVec2f & point) const;
00048 
00049   SbViewVolume viewVol;
00050   SbMatrix worldToWorking, workingToWorld;
00051   
00052   float findVanishingDistance(void) const;
00053   SbBool verifyProjection(const SbVec3f & projpt) const;
00054 };
00055 
00056 #endif // !COIN_SBPROJECTOR_H

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

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