VRS - The Virtual Rendering System

version 3.3

primitivequadtreegl.h

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/******************************************************************************
 * VRS - The Virtual Rendering System
 * Copyright (C) 2000-2004 Computer Graphics Systems Group at the 
 * Hasso-Plattner-Institute (HPI), Potsdam, Germany.
 *
 * 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. You should have received
 * a copy of the GNU Lesser+ General Public License along with this library; if
 * not, write to the FreeSoftware Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA, 02111-1307, USA.
 ******************************************************************************/

// $Id: primitivequadtreegl.h 6232 2008-02-06 14:23:59Z Anselm_Kegel $
// $Date: 2008-02-06 15:23:59 +0100 (Wed, 06 Feb 2008) $
// $Revision: 6232 $
// $State$
// $Author: Anselm_Kegel $
//
// $Log$
// Revision 1.10  2005/09/09 13:41:09  lorenz
// Added new c'tor for use with MappedVertexAttibuteShapeGLs
//
// Revision 1.9  2005/01/03 01:43:09  klimetschek
// - modified win32 project layout, splitted vrs.vcproj into vrs_container, vrs_core, vrs_sg, vrs_image, vrs_opengl and vrs_io
// - removed vrs.vcproj
// minor things:
// - added all glutexamples to vrs4glut.sln
// - fixed some problems in glutexamples
// - removed all project references from all VS projects (using solution wide project dependencies instead)
//
// Revision 1.8  2004/11/14 17:44:36  baumann
// added class PrimitiveQuadTreeAreaPainterGL to friend declaration
//
// Revision 1.7  2004/11/14 15:55:58  baumann
// comments corrected
//
// Revision 1.6  2004/11/03 14:45:06  saar
// Class comment changed (Doxygen style)
//
// Revision 1.5  2004/10/14 16:11:12  baumann
// ray intersection for PrimitiveQuadTreeAreaGL added
//
// Revision 1.4  2004/09/23 16:16:23  baumann
// added new flag for ctor: duplicateTrianglesForIntersectedNodes
//
// Revision 1.3  2004/03/12 16:28:40  baumann
// macros VRS_NAMESPACE_BEGIN/_END expanded and removed
//
// Revision 1.2  2004/02/11 16:23:33  kirsch
// added newline at end of file (gcc warning fixes)
//
// Revision 1.1  2004/02/03 03:19:51  buchholz
// initial check-in
//

#ifndef VRS_OPENGL_PRIMITIVEQUADTREEGL_H
#define VRS_OPENGL_PRIMITIVEQUADTREEGL_H

#include <vrs/monoattribute.h>
#include <vrs/bounds.h>
#include <vector>

namespace VRS {

class MappedVertexAttributeDataGL;
class MappedVertexAttributeShapeGL;
class PolygonSet;
template <typename T> class Iterator;
template <typename T> class StaticArray;
template <unsigned int DIM> class SpaceTreePath;
class BaseVertexAttributeBufferObjectGL;

class PrimitiveQuadTreeAreaPainterGL;
class PrimitiveQuadTreeDistancePainterGL;
class PrimitiveQuadTreeAreaRayIntersectorGL;

class VRS_CORE_API PrimitiveQuadTreeGL : public MonoAttribute {

public:
    PrimitiveQuadTreeGL(
        unsigned int depth,
        const SO<PolygonSet>& poly,
        const Bounds& area = Bounds(),
        bool duplicateTrianglesForIntersectedNodes = false
    );
    PrimitiveQuadTreeGL(
        unsigned int depth,
        const SO<MappedVertexAttributeDataGL>& vertexData,
        const Bounds& bbox,
        const std::vector<unsigned int>& indices = std::vector<unsigned int>(),
        bool duplicateDataForIntersectedNodes = false
    );

    PrimitiveQuadTreeGL(
        unsigned int depth,
        const SO<MappedVertexAttributeShapeGL>& shape,
        const Bounds& bbox = Bounds(),
        bool duplicateDataForIntersectedNodes = false
    );
    unsigned int depth() const;
    Bounds boundingBox() const;
    SO<MappedVertexAttributeDataGL> mappedVertexAttributeData() const;
    SO<BaseVertexAttributeBufferObjectGL> indexBufferObject() const;
    SO<Iterator<unsigned int> > nodeFirstIndex() const;
    SO<Iterator<Bounds> > nodeBounds() const;
    VRS_TYPEINFO(PrimitiveQuadTreeGL, MonoAttribute);
    VRS_SERIALIZABLE(PrimitiveQuadTreeGL);

protected:
    PrimitiveQuadTreeGL(); // only for serialization!

private:
    void init(
        unsigned int depth,
        const SO<MappedVertexAttributeDataGL>& vertexData,
        const Bounds& bbox,
        const std::vector<unsigned int>& indices,
        bool duplicateDataForIntersectedNodes
    );

    SO<MappedVertexAttributeDataGL> vaData_;
    SO<StaticArray<unsigned int> > nodeFirstIndex_;
    SO<StaticArray<Bounds> > nodeBounds_;
    SO<BaseVertexAttributeBufferObjectGL> indices_;
    unsigned int depth_;
    Bounds bounds_;

    friend class PrimitiveQuadTreeAreaPainterGL;
    friend class PrimitiveQuadTreeDistancePainterGL;
    friend class PrimitiveQuadTreeAreaRayIntersectorGL;
    friend class PrimitiveQuadTreeDistanceRayIntersectorGL;
    typedef VertexData<3, float> Vertex3f;
    std::vector<Vertex3f>     m_verticesForRayIntersection;
    std::vector<unsigned int> m_indicesForRayIntersection;
};

} // namespace VRS

#endif // VRS_OPENGL_PRIMITIVEQUADTREEGL_H

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