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SoRayPickAction.h

00001 #ifndef COIN_SORAYPICKACTION_H
00002 #define COIN_SORAYPICKACTION_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/actions/SoPickAction.h>
00028 
00029 class SbBox3f;
00030 class SbLine;
00031 class SbMatrix;
00032 class SbVec2f;
00033 class SbVec2s;
00034 class SbVec3f;
00035 class SbViewVolume;
00036 class SbViewportRegion;
00037 class SoPickedPoint;
00038 class SoPickedPointList;
00039 
00040 class COIN_DLL_API SoRayPickAction : public SoPickAction {
00041   typedef SoPickAction inherited;
00042 
00043   SO_ACTION_HEADER(SoRayPickAction);
00044 
00045 public:
00046   SoRayPickAction(const SbViewportRegion & viewportregion);
00047   virtual ~SoRayPickAction();
00048   static void initClass(void);
00049 
00050   void setPoint(const SbVec2s & viewportPoint);
00051   void setNormalizedPoint(const SbVec2f & normpoint);
00052   void setRadius(const float radiusinpixels);
00053   void setRay(const SbVec3f & start, const SbVec3f & direction,
00054               float neardistance = -1.0,
00055               float fardistance = -1.0);
00056   void setPickAll(const SbBool flag);
00057   SbBool isPickAll(void) const;
00058   const SoPickedPointList & getPickedPointList(void) const;
00059   SoPickedPoint * getPickedPoint(const int index = 0) const;
00060 
00061 
00062   void computeWorldSpaceRay(void);
00063   SbBool hasWorldSpaceRay(void) const;
00064   void setObjectSpace(void);
00065   void setObjectSpace(const SbMatrix & matrix);
00066   SbBool intersect(const SbVec3f & v0, const SbVec3f & v1, const SbVec3f & v2,
00067                    SbVec3f & intersection, SbVec3f & barycentric,
00068                    SbBool & front) const;
00069   SbBool intersect(const SbVec3f & v0, const SbVec3f & v1,
00070                    SbVec3f & intersection) const;
00071   SbBool intersect(const SbVec3f & point) const;
00072   SbBool intersect(const SbBox3f & box, const SbBool usefullviewvolume = TRUE);
00073   SbBool intersect(const SbBox3f & box, SbVec3f & intersection,
00074                    const SbBool usefullviewvolume = TRUE);
00075   const SbViewVolume & getViewVolume(void);
00076   const SbLine & getLine(void);
00077   SbBool isBetweenPlanes(const SbVec3f & intersection) const;
00078   SoPickedPoint * addIntersection(const SbVec3f & objectspacepoint);
00079 
00080   void reset(void);
00081 
00082 protected:
00083   virtual void beginTraversal(SoNode * node);
00084 
00085 private:
00086   class SoRayPickActionP * pimpl;
00087 };
00088 
00089 #endif // !COIN_SORAYPICKACTION_H

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

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