Source/System/NodeCores/Drawables/Nurbs/Internal/OSGDCTPEdge.h

   1 /*---------------------------------------------------------------------------*\
   2  *                           OpenSG NURBS Library                            *
   3  *                                                                           *
   4  *                                                                           *
   5  * Copyright (C) 2001-2006 by the University of Bonn, Computer Graphics Group*
   6  *                                                                           *
   7  *                         http://cg.cs.uni-bonn.de/                         *
   8  *                                                                           *
   9  * contact: edhellon@cs.uni-bonn.de, guthe@cs.uni-bonn.de, rk@cs.uni-bonn.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 #ifndef _OSG_DCTPEDGE_H_
  39 #define _OSG_DCTPEDGE_H_
  40 #ifdef __sgi
  41 #pragma once
  42 #endif
  43
  44 #include "OSGDrawableDef.h"
  45 #include "OSGConfig.h"
  46
  47
  48 #include <iostream>
  49 #include <fstream>
  50 #include <iomanip>
  51
  52
  53
  54 #include "OSGdctptypes.h"
  55
  56 OSG_BEGIN_NAMESPACE
  57
  58 /*
  59  * This define decides whether to use a std::set for storing the edges of the
  60  * mesh, or just use a std::vector. We originally thought using a set speeds
  61  * up some operations, but in practice for large models the vector data
  62  * structure actually works better (faster).
  63  *
  64  * Please note that if you decide to use a set, the "sorting" of the edges is
  65  * based on the lexicographic sort of the physical addresses of their vertices,
  66  * which means that you might get some edges "reversed" in the mesh from
  67  * the same input data. Due to the nature of the graph-traversing algorithm,
  68  * (it starts by searching a direted edge) you might get slightly different
  69  * different triangulations for the same surface in different runs.
  70  *
  71  * (Our) default is not to use a set (i.e. to use a vector).
  72  */
  73 #define OSG_NO_EDGE_SET
  74
  75
  76 class DCTPVertex;
  77 OSG_END_NAMESPACE
  78 //class DCTPFace;
  79 #include "OSGDCTPFace.h"
  80
  81 OSG_BEGIN_NAMESPACE
  82
  83 class OSG_DRAWABLE_DLLMAPPING DCTPEdge
  84 {
  85   public:
  86     inline  DCTPEdge(DCTPVertex * vx1, DCTPVertex * vx2, int orient);
  87     inline ~DCTPEdge(void                                          );
  88
  89     inline void getVertices(DCTPVertex *&vx1, DCTPVertex *&vx2);
  90     inline void setVertices(DCTPVertex * vx1, DCTPVertex * vx2);
  91
  92     inline void AddFace   (DCTPFace *f);
  93     inline void RemoveFace(DCTPFace *f);
  94
  95   private:
  96     DCTPVertex *v1;
  97     DCTPVertex *v2;
  98
  99   public:
 100     dctpfacevector faces;
 101
 102   public:
 103     int orientation; // >0: first vertex->second vertex
 104                      // 0: not oriented
 105                      // <0: second vertec->first vertex
 106     unsigned long id; // unique id of this edge
 107     void         *edgeinfo;
 108
 109 #ifndef OSG_NO_EDGE_SET
 110     struct DCTPEdgeless
 111     {
 112         inline bool operator()(DCTPEdge *e1, DCTPEdge *e2) const;
 113     };
 114 #endif
 115
 116
 117   private:
 118
 119     DCTPEdge(const DCTPEdge &other);
 120     void operator =(const DCTPEdge &rhs);
 121 };
 122
 123 #ifdef OSG_NO_EDGE_SET
 124 typedef std::vector<DCTPEdge*                        > dctpedgevector;
 125 #else
 126 typedef std::set   <DCTPEdge*, DCTPEdge::DCTPEdgeless> dctpedgeset;
 127 #endif
 128
 129 OSG_END_NAMESPACE
 130
 131 #include "OSGDCTPEdge.inl"
 132
 133 #endif // DCTPEdge.h