Source/Base/Base/OSGNormalQuantifier.h

   1 /*---------------------------------------------------------------------------*\
   2  *                                OpenSG                                     *
   3  *                                                                           *
   4  *                                                                           *
   5  *                Copyright (C) 2000-2003 by the OpenSG Forum                *
   6  *                                                                           *
   7  *                            www.opensg.org                                 *
   8  *                                                                           *
   9  *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
  10  *                                                                           *
  11 \*---------------------------------------------------------------------------*/
  12 /*---------------------------------------------------------------------------*\
  13  *                                License                                    *
  14  *                                                                           *
  15  * This library is free software; you can redistribute it and/or modify it   *
  16  * under the terms of the GNU Library General Public License as published    *
  17  * by the Free Software Foundation, version 2.                               *
  18  *                                                                           *
  19  * This library is distributed in the hope that it will be useful, but       *
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of                *
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
  22  * Library General Public License for more details.                          *
  23  *                                                                           *
  24  * You should have received a copy of the GNU Library General Public         *
  25  * License along with this library; if not, write to the Free Software       *
  26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
  27  *                                                                           *
  28 \*---------------------------------------------------------------------------*/
  29 /*---------------------------------------------------------------------------*\
  30  *                                Changes                                    *
  31  *                                                                           *
  32  *                                                                           *
  33  *                                                                           *
  34  *                                                                           *
  35  *                                                                           *
  36  *                                                                           *
  37 \*---------------------------------------------------------------------------*/
  38
  39 #ifndef _OSGNORMALQUANTIFIER_H_
  40 #define _OSGNORMALQUANTIFIER_H_
  41 #ifdef __sgi
  42 #pragma once
  43 #endif
  44
  45 #include "OSGBaseTypes.h"
  46 #include "OSGVector.h"
  47
  48 #include <vector>
  49
  50 OSG_BEGIN_NAMESPACE
  51
  52 /*! \ingroup GrpBaseBase
  53     \ingroup GrpBaseBaseHelper
  54     \ingroup GrpLibOSGBase
  55     \nohierarchy
  56  */
  57
  58 class OSG_BASE_DLLMAPPING NormalQuantifier
  59 {
  60     /*==========================  PUBLIC  =================================*/
  61
  62   public:
  63
  64     /*---------------------------------------------------------------------*/
  65     /*! \name                   Constructors                               */
  66     /*! \{                                                                 */
  67
  68     NormalQuantifier(UInt32 numberSubdivisions = 0);
  69
  70     /*! \}                                                                 */
  71     /*---------------------------------------------------------------------*/
  72     /*! \name                   Destructor                                 */
  73     /*! \{                                                                 */
  74
  75     virtual ~NormalQuantifier(void);
  76
  77     /*! \}                                                                 */
  78     /*---------------------------------------------------------------------*/
  79     /*! \name                      Get                                     */
  80     /*! \{                                                                 */
  81
  82           UInt32  getIndex      (Vec3f  &normal,
  83                                  UInt32  numberSubdivisions = 0) const;
  84
  85     const Vec3f  &getNormal     (UInt32  index                 ) const;
  86
  87           SizeT   getNormalCount(void                          ) const;
  88
  89     /*! \}                                                                 */
  90     /*---------------------------------------------------------------------*/
  91     /*! \name                     Init                                     */
  92     /*! \{                                                                 */
  93
  94     void build(UInt32 numberSubdivisions = 4);
  95
  96     /*! \}                                                                 */
  97     /*=========================  PROTECTED  ===============================*/
  98
  99   protected:
 100
 101     /*---------------------------------------------------------------------*/
 102     /*! \name                      Member                                  */
 103     /*! \{                                                                 */
 104
 105     UInt32             _numberSubdivisions;
 106
 107     std::vector<Vec3f> _normalTable;
 108
 109     /*! \}                                                                 */
 110     /*---------------------------------------------------------------------*/
 111     /*! \name                      Helper                                  */
 112     /*! \{                                                                 */
 113
 114     void   subdivide  (Vec3f   point1,
 115                        Vec3f   point2,
 116                        Vec3f   point3,
 117                        UInt32  number,
 118                        UInt32 &index );
 119
 120     bool rayTriangle ( const Vec3f & dir,
 121                        const Vec3f & vert0,
 122                        const Vec3f & vert1,
 123                        const Vec3f & vert2) const;
 124
 125     UInt32 getSubIndex(Vec3f   point,
 126                        Vec3f   point1,
 127                        Vec3f   point2,
 128                        Vec3f   point3,
 129                        UInt32  number) const;
 130
 131     /*! \}                                                                 */
 132     /*==========================  PRIVATE  ================================*/
 133
 134  private:
 135
 136     /*!\brief prohibit default function (move to 'public' if needed) */
 137     NormalQuantifier(const NormalQuantifier &source);
 138     /*!\brief prohibit default function (move to 'public' if needed) */
 139     NormalQuantifier &operator =(const NormalQuantifier &source);
 140 };
 141
 142 OSG_END_NAMESPACE
 143
 144 #include "OSGNormalQuantifier.inl"
 145
 146 #endif /* _OSGNORMALQUANTIFIER_H_ */