src/libengrid/reducedpolydatareader.h

   1 //
   2 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   3 // +                                                                      +
   4 // + This file is part of enGrid.                                         +
   5 // +                                                                      +
   6 // + Copyright 2008-2012 enGits GmbH                                     +
   7 // +                                                                      +
   8 // + enGrid is free software: you can redistribute it and/or modify       +
   9 // + it under the terms of the GNU General Public License as published by +
  10 // + the Free Software Foundation, either version 3 of the License, or    +
  11 // + (at your option) any later version.                                  +
  12 // +                                                                      +
  13 // + enGrid is distributed in the hope that it will be useful,            +
  14 // + but WITHOUT ANY WARRANTY; without even the implied warranty of       +
  15 // + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        +
  16 // + GNU General Public License for more details.                         +
  17 // +                                                                      +
  18 // + You should have received a copy of the GNU General Public License    +
  19 // + along with enGrid. If not, see <http://www.gnu.org/licenses/>.       +
  20 // +                                                                      +
  21 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  22 //
  23
  24 #ifndef REDUCEDPOLYDATAREADER_H
  25 #define REDUCEDPOLYDATAREADER_H
  26
  27 class ReducedPolyDataReader;
  28
  29 #include "iooperation.h"
  30
  31 /**
  32  * Reader for VTK legacy files containing vtkPolyData.
  33  * This reader will perform a reduction of the number of nodes and faces.
  34  */
  35 class ReducedPolyDataReader : public IOOperation
  36 {
  37
  38 private: // data-types
  39
  40   struct Triangle
  41   {
  42     vtkIdType id_a, id_b, id_c;
  43     vec3_t a, b, c;
  44     vec3_t g1, g2, g3;
  45     mat3_t G, GI;
  46     double A;
  47     double smallest_length;
  48   };
  49
  50
  51 private: // attributes
  52
  53   double m_MaxEdgeLength;
  54   double m_MinEdgeLength;
  55
  56
  57 protected: // methods
  58
  59   void computeLevelSet(vtkUnstructuredGrid *grid, vtkPolyData* poly);
  60   virtual void operate();
  61
  62
  63 public: // methods
  64
  65   ReducedPolyDataReader();
  66
  67 };
  68
  69 #endif // REDUCEDPOLYDATAREADER_H