SoQuadMesh.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 SoQuadMesh node 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_QUAD_MESH_
#define  _SO_QUAD_MESH_
 
#include <Inventor/fields/SoSFInt32.h>
#include <Inventor/nodes/SoNonIndexedShape.h>
 
 
 
 
class INVENTOR_API SoQuadMesh : public SoNonIndexedShape {
 
    SO_NODE_HEADER(SoQuadMesh);
 
  public:
 
 
    SoSFInt32   verticesPerColumn;      
    SoSFInt32   verticesPerRow;         
 
 
    SoQuadMesh();
 
  SoEXTENDER public:
    virtual void        GLRender(SoGLRenderAction *action);
 
    virtual bool        generateDefaultNormals(SoState *state,
                                               SoNormalBundle *nb);
 
  SoINTERNAL public:
    static void         initClass();
 
    enum Binding {
        OVERALL, PER_ROW, PER_QUAD, PER_VERTEX
    };
    
    typedef void (SoQuadMesh::*PMQM)(SoGLRenderAction *);
 
  protected:
    virtual void        generatePrimitives(SoAction *action);
 
    virtual void        computeBBox(SoAction *action, SbBox3f &box,
                                    SbVec3f &center);
 
    virtual SoDetail *  createTriangleDetail(SoRayPickAction *action,
                                             const SoPrimitiveVertex *v1,
                                             const SoPrimitiveVertex *v2,
                                             const SoPrimitiveVertex *v3,
                                             SoPickedPoint *pp);
 
    virtual ~SoQuadMesh();
 
 
    
  private:
    SbVec3f             *generatedNormals;      
 
    static Binding      getMaterialBinding(SoAction *action);
    static Binding      getNormalBinding(SoAction *action);
 
    static int          getBindIndex(Binding binding, int vert,
                                     int row, int quad);
 
    void                figureNormals(SoState *state, SoNormalBundle *nb);
 
    virtual void        notify(SoNotList *list);
 
 
    int                         totalNumVertices;
 
    void OmOn(SoGLRenderAction *); void OmOnT(SoGLRenderAction *);
    void OmPn(SoGLRenderAction *); void OmPnT(SoGLRenderAction *);
    void OmFn(SoGLRenderAction *); void OmFnT(SoGLRenderAction *);
    void OmVn(SoGLRenderAction *); void OmVnT(SoGLRenderAction *);
    void PmOn(SoGLRenderAction *); void PmOnT(SoGLRenderAction *);
    void PmPn(SoGLRenderAction *); void PmPnT(SoGLRenderAction *);
    void PmFn(SoGLRenderAction *); void PmFnT(SoGLRenderAction *);
    void PmVn(SoGLRenderAction *); void PmVnT(SoGLRenderAction *);
    void FmOn(SoGLRenderAction *); void FmOnT(SoGLRenderAction *);
    void FmPn(SoGLRenderAction *); void FmPnT(SoGLRenderAction *);
    void FmFn(SoGLRenderAction *); void FmFnT(SoGLRenderAction *);
    void FmVn(SoGLRenderAction *); void FmVnT(SoGLRenderAction *);
    void VmOn(SoGLRenderAction *); void VmOnT(SoGLRenderAction *);
    void VmPn(SoGLRenderAction *); void VmPnT(SoGLRenderAction *);
    void VmFn(SoGLRenderAction *); void VmFnT(SoGLRenderAction *);
    void VmVn(SoGLRenderAction *); void VmVnT(SoGLRenderAction *);
 
    static PMQM renderFunc[32];
};
 
#endif /* _SO_QUAD_MESH_ */