MeVis/ThirdParty/Sources/Inventor/inventor/lib/database/include/Inventor/SoPickedPoint.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   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 defines the base SoPickedPoint class.
 |
 |   Author(s)          : Paul S. Strauss
 |
 ______________  S I L I C O N   G R A P H I C S   I N C .  ____________
 _______________________________________________________________________
 */

#ifndef _SO_PICKED_POINT_
#define _SO_PICKED_POINT_

#include <Inventor/SbLinear.h>
#include <Inventor/SbViewportRegion.h>
#include <Inventor/SoLists.h>

class SoDetail;
class SoGetMatrixAction;
class SoPath;
class SoState;





class INVENTOR_API SoPickedPoint {

  public:

    SoPickedPoint(const SoPickedPoint &pp);

    ~SoPickedPoint();

    SoPickedPoint *     copy() const;

    const SbVec3f &     getPoint() const         { return worldPoint; }
    const SbVec3f &     getNormal() const        { return worldNormal; }
    const SbVec4f &     getTextureCoords() const { return imageTexCoords; }

    int                 getMaterialIndex() const { return materialIndex; }

    SoPath *            getPath() const          { return path; }

    SbBool              isOnGeometry() const     { return onGeometry; }


    const SoDetail *    getDetail(const SoNode *node = NULL) const;



    SbMatrix            getObjectToWorld(const SoNode *node = NULL) const;
    SbMatrix            getWorldToObject(const SoNode *node = NULL) const;
    SbMatrix            getObjectToImage(const SoNode *node = NULL) const;
    SbMatrix            getImageToObject(const SoNode *node = NULL) const;
    SbVec3f             getObjectPoint(const SoNode *node = NULL) const;
    SbVec3f             getObjectNormal(const SoNode *node = NULL) const;
    SbVec4f             getObjectTextureCoords(const SoNode *node=NULL) const;


  SoEXTENDER public:


    void                setObjectNormal(const SbVec3f &normal);

    void                setObjectTextureCoords(const SbVec4f &texCoords);

    void                setMaterialIndex(int index)  { materialIndex = index; }

    void                setDetail(SoDetail *detail, SoNode *node);

  SoINTERNAL public:

    SoPickedPoint(const SoPath *path, SoState *state,
                  const SbVec3f &objSpacePoint);

  private:
    static SoGetMatrixAction    *matrixAction;

    SbVec3f             worldPoint;
    SbVec3f             worldNormal;
    SbVec4f             imageTexCoords;

    SbViewportRegion    vpRegion;

    int                 materialIndex;

    SbBool              onGeometry;

    SoPath              *path;

    SoDetailList        details;

    SoState             *state;

    int                 getNodeIndex(const SoNode *node) const;

    void                getMatrix(const SoNode *node) const;

    static SbVec4f multVecMatrix4(const SbMatrix &m, const SbVec4f v);
};

#endif /* _SO_PICKED_POINT_ */