src/libengrid/reducedpolydatareader.h

   1 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   2 // +                                                                      +
   3 // + This file is part of enGrid.                                         +
   4 // +                                                                      +
   5 // + Copyright 2008-2014 enGits GmbH                                      +
   6 // +                                                                      +
   7 // + enGrid is free software: you can redistribute it and/or modify       +
   8 // + it under the terms of the GNU General Public License as published by +
   9 // + the Free Software Foundation, either version 3 of the License, or    +
  10 // + (at your option) any later version.                                  +
  11 // +                                                                      +
  12 // + enGrid is distributed in the hope that it will be useful,            +
  13 // + but WITHOUT ANY WARRANTY; without even the implied warranty of       +
  14 // + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        +
  15 // + GNU General Public License for more details.                         +
  16 // +                                                                      +
  17 // + You should have received a copy of the GNU General Public License    +
  18 // + along with enGrid. If not, see <http://www.gnu.org/licenses/>.       +
  19 // +                                                                      +
  20 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  21
  22 #ifndef REDUCEDPOLYDATAREADER_H
  23 #define REDUCEDPOLYDATAREADER_H
  24
  25 class ReducedPolyDataReader;
  26
  27 #include "iooperation.h"
  28
  29 /**
  30  * Reader for VTK legacy files containing vtkPolyData.
  31  * This reader will perform a reduction of the number of nodes and faces.
  32  */
  33 class ReducedPolyDataReader : public IOOperation
  34 {
  35
  36 private: // data-types
  37
  38   struct Triangle
  39   {
  40     vtkIdType id_a, id_b, id_c;
  41     vec3_t a, b, c;
  42     vec3_t g1, g2, g3;
  43     mat3_t G, GI;
  44     double A;
  45     double smallest_length;
  46   };
  47
  48
  49 private: // attributes
  50
  51   double m_MaxEdgeLength;
  52   double m_MinEdgeLength;
  53
  54
  55 protected: // methods
  56
  57   void computeLevelSet(vtkUnstructuredGrid *grid, vtkPolyData* poly);
  58   virtual void operate();
  59
  60
  61 public: // methods
  62
  63   ReducedPolyDataReader();
  64
  65 };
  66
  67 #endif // REDUCEDPOLYDATAREADER_H