MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/projectors/SbCylinderPlaneProjector.h

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/*
 *
 *  Copyright (C) 2000 Silicon Graphics, Inc.  All Rights Reserved. 
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 * 
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 *  Mountain View, CA  94043, or:
 * 
 *  http://www.sgi.com 
 * 
 *  For further information regarding this notice, see: 
 * 
 *  http://oss.sgi.com/projects/GenInfo/NoticeExplan/
 *
 */


/*
 * Copyright (C) 1990,91,92   Silicon Graphics, Inc.
 *
 _______________________________________________________________________
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 |
 |   $Revision: 1.1.1.1 $
 |
 |   Description:
 |      This file contains the definition of the SbCylinderPlaneProjector
 |      class. This projector projects the mouse position onto the 
 |      surface of a cylinder with a plane cutting through it.
 |
 |      When the mouse position projects on to the plane, the
 |      rotations will be as if the plane is being dragged,
 |      causing the cylinder to rotate beneath it.
 |
 |   Author(s)          : Howard Look, Paul Isaacs
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */

#ifndef _SB_CYLINDER_PLANE_PROJECTOR_
#define _SB_CYLINDER_PLANE_PROJECTOR_

#include <Inventor/projectors/SbCylinderSectionProjector.h>




class INVENTOR_API SbCylinderPlaneProjector : public SbCylinderSectionProjector
{
  public:

    SbCylinderPlaneProjector(float edgeTol = .9, SbBool orientToEye = TRUE);

    SbCylinderPlaneProjector( const SbCylinder &cyl,
                              float edgeTol = .9,
                              SbBool orientToEye = TRUE);

    ~SbCylinderPlaneProjector() {}
    
    virtual SbProjector *    copy() const;

    virtual SbVec3f     project(const SbVec2f &point);

    virtual SbRotation  getRotation(const SbVec3f &point1,
                                    const SbVec3f &point2);

  protected:
    SbRotation          getRotation(const SbVec3f &point1, SbBool tol1, 
                                    const SbVec3f &point2, SbBool tol2);
};

#endif /* _SB_CYLINDER_PLANE_PROJECTOR_ */