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SbSphereSectionProjector.h

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_SBSPHERESECTIONPROJECTOR_H
00021 #define COIN_SBSPHERESECTIONPROJECTOR_H
00022 
00023 #include <Inventor/projectors/SbSphereProjector.h>
00024 #include <Inventor/SbPlane.h>
00025 
00026 
00027 class COIN_DLL_API SbSphereSectionProjector : public SbSphereProjector {
00028   typedef SbSphereProjector inherited;
00029 
00030 public:
00031   SbSphereSectionProjector(const float edgetol = 0.9f,
00032                            const SbBool orienttoeye = TRUE);
00033   SbSphereSectionProjector(const SbSphere & sph,
00034                            const float edgetol = 0.9f,
00035                            const SbBool orienttoeye = TRUE);
00036 
00037   virtual SbProjector * copy(void) const;
00038   virtual SbVec3f project(const SbVec2f & point);
00039   virtual SbRotation getRotation(const SbVec3f & point1,
00040                                  const SbVec3f & point2);
00041   void setTolerance(const float edgetol);
00042   float getTolerance(void) const;
00043   void setRadialFactor(const float rad = 0.0f);
00044   float getRadialFactor(void) const;
00045   SbBool isWithinTolerance(const SbVec3f & point);
00046 
00047 protected:
00048   virtual void setupTolerance(void);
00049 
00050   float tolerance;
00051   float tolDist;
00052   float radialFactor;
00053   SbVec3f planePoint;
00054   SbVec3f planeDir;
00055   float planeDist;
00056   SbPlane tolPlane;
00057 
00058 private:
00059   float sqrtoldist;
00060 };
00061 
00062 #endif // !COIN_SBSPHERESECTIONPROJECTOR_H

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