MeshFixingT.hh 5.87 KB
Newer Older
Jan Möbius's avatar
Jan Möbius committed
1 2 3
/*===========================================================================*\
 *                                                                           *
 *                               OpenMesh                                    *
4 5 6 7
 *           Copyright (c) 2001-2015, RWTH-Aachen University                 *
 *           Department of Computer Graphics and Multimedia                  *
 *                          All rights reserved.                             *
 *                            www.openflipper.org                            *
Jan Möbius's avatar
Jan Möbius committed
8 9
 *                                                                           *
 *---------------------------------------------------------------------------*
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
 * This file is part of OpenFlipper.                                         *
 *---------------------------------------------------------------------------*
 *                                                                           *
 * Redistribution and use in source and binary forms, with or without        *
 * modification, are permitted provided that the following conditions        *
 * are met:                                                                  *
 *                                                                           *
 * 1. Redistributions of source code must retain the above copyright notice, *
 *    this list of conditions and the following disclaimer.                  *
 *                                                                           *
 * 2. Redistributions in binary form must reproduce the above copyright      *
 *    notice, this list of conditions and the following disclaimer in the    *
 *    documentation and/or other materials provided with the distribution.   *
 *                                                                           *
 * 3. Neither the name of the copyright holder nor the names of its          *
 *    contributors may be used to endorse or promote products derived from   *
 *    this software without specific prior written permission.               *
 *                                                                           *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS       *
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED *
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A           *
 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER *
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,  *
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,       *
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR        *
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    *
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING      *
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS        *
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.              *
Jan Möbius's avatar
Jan Möbius committed
39 40 41 42 43
 *                                                                           *
\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
44 45
 *   $Revision$                                                         *
 *   $Date$                   *
Jan Möbius's avatar
Jan Möbius committed
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
 *                                                                           *
\*===========================================================================*/


#ifndef OPENMESH_MESHFIXING_HH
#define OPENMESH_MESHFIXING_HH

//=============================================================================
//
//  CLASS MeshFixing
//
//=============================================================================

//== INCLUDES =================================================================

//== NAMESPACE ================================================================

//== CLASS DEFINITION =========================================================

/** \brief Compare two vectors
 *
 * If they are closer than a specified epsilon, we identify them as equal.
 *
 */
class CompareVectors
{
public:

  /// Constructor
Jan Möbius's avatar
Jan Möbius committed
75
  explicit CompareVectors(double _eps = FLT_MIN);
Jan Möbius's avatar
Jan Möbius committed
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122

  /// comparison operator
  bool operator()( const ACG::Vec3d& _v0, const ACG::Vec3d& _v1 ) const;

private:
  const double epsilon_;
};


/** \brief Fix a mesh
 *
 */
template<class MeshT>
class MeshFixing {

public:

  MeshFixing(MeshT& _mesh, double _epsilon );

  bool fix();


private:

  TriMesh& mesh_;


  /** \brief Add a face to the fixing data
   *
   * Degenerated faces will already be discarded in this step
   *
   * @param _p0 Vertex 1
   * @param _p1 Vertex 2
   * @param _p2 Vertex 3
   */
  void add_face(const ACG::Vec3d& _p0, const ACG::Vec3d& _p1, const ACG::Vec3d& _p2);

  void fix_topology();
  void fix_orientation();

  int neighbor(unsigned int _f, unsigned int _v0, unsigned int _v1);



  /// Internal vertex type
  struct Vertex
  {
Jan Möbius's avatar
Jan Möbius committed
123
    explicit Vertex(const ACG::Vec3d& _p) : p(_p) { };
Jan Möbius's avatar
Jan Möbius committed
124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172
    ACG::Vec3d                    p;

    /// This vector will contain a list of all faces incident to the current vertex
    std::vector<unsigned int>     faces;
  };

  /// Internal face type
  struct Face
  {
    Face(int _i0, int _i1, int _i2) :
            component(-1)
    {
      v[0] = _i0;
      v[1] = _i1;
      v[2] = _i2;

    }

    unsigned int  v[3];
    int  component;
  };


  typedef std::map<ACG::Vec3d, int, CompareVectors>  VertexMap;

  typedef VertexMap::iterator MapIter;

  std::vector<Vertex>  vertices_;
  std::vector<Face>    faces_;


  /** Add a vertex to the map
   *
   * @param   _p New vertex
   * @return Index of the vertex
   */
  int add_vertex(const ACG::Vec3d& _p);

  VertexMap            vmap_;

};

#if defined(INCLUDE_TEMPLATES) && !defined(OPENMESH_MESHFIXING_CC)
#define OPENMESH_MESHFIXING_TEMPLATES
#include "MeshFixingT.cc"
#endif

#endif