SbProjector.h

00001 /**************************************************************************\
00002  *
00003  *  This file is part of the Coin 3D visualization library.
00004  *  Copyright (C) 1998-2003 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 Lesser General Public License
00008  *  version 2.1 as published by the Free Software Foundation. See the
00009  *  file LICENSE.LGPL at the root directory of the distribution for
00010  *  more details.
00011  *
00012  *  If you want to use Coin for applications not compatible with the
00013  *  LGPL, please contact SIM to acquire a Professional Edition license.
00014  *
00015  *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY
00016  *  http://www.sim.no support@sim.no Voice: +47 22114160 Fax: +47 22207097
00017  *
00018 \**************************************************************************/
00019 
00020 #ifndef COIN_SBPROJECTOR_H
00021 #define COIN_SBPROJECTOR_H
00022 
00023 #include <Inventor/SbVec3f.h>
00024 #include <Inventor/SbLine.h>
00025 #include <Inventor/SbMatrix.h>
00026 #include <Inventor/SbViewVolume.h>
00027 
00028 class SbVec2f;
00029 
00030 
00031 class COIN_DLL_API SbProjector {
00032 public:
00033   virtual SbVec3f project(const SbVec2f & point) = 0;
00034   virtual void setViewVolume(const SbViewVolume & vol);
00035   const SbViewVolume & getViewVolume(void) const;
00036   virtual void setWorkingSpace(const SbMatrix & space);
00037   const SbMatrix & getWorkingSpace(void) const;
00038   virtual SbProjector * copy(void) const = 0;
00039 
00040 protected:
00041   SbProjector(void);
00042   virtual ~SbProjector() { }
00043 
00044   SbLine getWorkingLine(const SbVec2f & point) const;
00045 
00046   SbViewVolume viewVol;
00047   SbMatrix worldToWorking, workingToWorld;
00048 };
00049 
00050 #endif // !COIN_SBPROJECTOR_H

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