00001 /**************************************************************************\ 00002 * 00003 * This file is part of the Coin 3D visualization library. 00004 * Copyright (C) 1998-2002 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, Prof Brochs gate 6, 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