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# SbSphereProjector.h

    00001 #ifndef COIN_SBSPHEREPROJECTOR_H
    00002 #define COIN_SBSPHEREPROJECTOR_H
    00003
    00004 /**************************************************************************\
    00005  *
    00006  *  This file is part of the Coin 3D visualization library.
    00007  *  Copyright (C) 1998-2003 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 <URL:http://www.coin3d.org> for  more information.
    00021  *
    00022  *  Systems in Motion, Teknobyen, Abels Gate 5, 7030 Trondheim, NORWAY.
    00023  *  <URL:http://www.sim.no>.
    00024  *
    00025 \**************************************************************************/
    00026
    00027 #include <Inventor/projectors/SbProjector.h>
    00028 #include <Inventor/SbSphere.h>
    00029 #include <Inventor/SbRotation.h>
    00030
    00031 class COIN_DLL_API SbSphereProjector : public SbProjector {
    00032   typedef SbProjector inherited;
    00033
    00034 public:
    00035   SbVec3f projectAndGetRotation(const SbVec2f & point, SbRotation & rot);
    00036   virtual SbRotation getRotation(const SbVec3f & point1,
    00037                                  const SbVec3f & point2) = 0;
    00038
    00039   void setSphere(const SbSphere & sph);
    00040   const SbSphere & getSphere(void) const;
    00041   void setOrientToEye(const SbBool orienttoeye);
    00042   SbBool isOrientToEye(void) const;
    00043   void setFront(const SbBool infront);
    00044   SbBool isFront(void) const;
    00045   SbBool isPointInFront(const SbVec3f & point) const;
    00046   virtual void setWorkingSpace(const SbMatrix & space);
    00047
    00048 protected:
    00049   SbSphereProjector(const SbBool orienttoeye);
    00050   SbSphereProjector(const SbSphere & s, const SbBool orienttoeye);
    00051
    00052   SbBool intersectSphereFront(const SbLine & l, SbVec3f & result);
    00053
    00054   SbBool intersectFront;
    00055   SbSphere sphere;
    00056   SbBool orientToEye;
    00057   SbBool needSetup;
    00058   SbVec3f lastPoint;
    00059 };
    00060
    00061 #endif // !COIN_SBSPHEREPROJECTOR_H