src/removepoints.h

   1 //
   2 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   3 // +                                                                      +
   4 // + This file is part of enGrid.                                         +
   5 // +                                                                      +
   6 // + Copyright 2008,2009 Oliver Gloth                                     +
   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 #ifndef REMOVEPOINTS_H
  24 #define REMOVEPOINTS_H
  25
  26 #include "surfaceoperation.h"
  27
  28 #include <vtkUnstructuredGrid.h>
  29 #include <vtkPolyData.h>
  30 #include <vtkCharArray.h>
  31
  32 #include <QVector>
  33 #include <QString>
  34 #include <QTextStream>
  35 #include <QTime>
  36
  37 class RemovePoints : public SurfaceOperation
  38 {
  39
  40 protected:
  41
  42   int    m_NumRemoved;
  43   double m_Threshold;
  44   bool   m_ProtectFeatureEdges;
  45   bool   m_PerformGeometricChecks;
  46
  47   QVector<bool> m_IsFeatureNode;
  48
  49 public:
  50
  51   RemovePoints();
  52
  53   virtual void operate();
  54
  55   int getNumRemoved() { return m_NumRemoved; }
  56   void setProtectFeatureEdgesOn()  { m_ProtectFeatureEdges = true; }
  57   void setProtectFeatureEdgesOff() { m_ProtectFeatureEdges = false; }
  58   void setPerformGeometricChecksOn()  { m_PerformGeometricChecks = true; }
  59   void setPerformGeometricChecksOff() { m_PerformGeometricChecks = false; }
  60
  61 protected:
  62
  63   void markFeatureEdges();
  64
  65   /// deletes set of points DeadNodes
  66   bool DeleteSetOfPoints(const QVector<vtkIdType>& deadnode_vector,
  67                          const QVector<vtkIdType>& snappoint_vector,
  68                          const QVector<vtkIdType>& all_deadcells,
  69                          const QVector<vtkIdType>& all_mutatedcells,
  70                          int& num_newpoints,
  71                          int& num_newcells);
  72
  73   /// returns a valid potential snappoint (checks for flipped cells, etc). If none is found, returns -1.
  74   vtkIdType FindSnapPoint( vtkIdType DeadNode,
  75                            QVector<vtkIdType>& DeadCells,
  76                            QVector<vtkIdType>& MutatedCells,
  77                            int& N_newpoints, int & N_newcells,
  78                            QVector<bool>& marked_nodes);
  79
  80   /// returns true if moving id_node to position P leads to flipped cells
  81   bool FlippedCells( vtkIdType id_node, vec3_t P );
  82
  83   /// returns number of common neighbour nodes of id_node1 and id_node2. IsTetra becomes true if id_node1 and id_node2 belong to the edge of a tetrahedron.
  84   int NumberOfCommonPoints( vtkIdType id_node1, vtkIdType id_node2, bool& IsTetra );
  85
  86 };
  87
  88 #endif