src/VTKViewer/VTKViewer_GeometryFilter.h

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// Copyright (C) 2007-2011  CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//

#ifndef VTKVIEWER_GEOMETRYFILTER_H
#define VTKVIEWER_GEOMETRYFILTER_H

#include "VTKViewer.h"

#include <vtkGeometryFilter.h>

#include <vector>

#ifdef WIN32
#pragma warning ( disable:4251 )
#endif

class vtkUnstructuredGrid;

class VTKVIEWER_EXPORT VTKViewer_GeometryFilter : public vtkGeometryFilter 
{
public:
  static VTKViewer_GeometryFilter *New();
  
  vtkTypeRevisionMacro(VTKViewer_GeometryFilter, vtkGeometryFilter);
  void SetInside(int theShowInside);
  int GetInside();
  void SetWireframeMode(int theIsWireframeMode);
  int GetWireframeMode();
  void SetStoreMapping(int theStoreMapping);
  int GetStoreMapping();
  virtual vtkIdType GetNodeObjId(int theVtkID) { return theVtkID;}
  virtual vtkIdType GetElemObjId(int theVtkID);

  virtual void SetQuadraticArcMode(bool theFlag);
  virtual bool GetQuadraticArcMode() const;

  virtual void   SetQuadraticArcAngle(vtkFloatingPointType theMaxAngle);
  virtual vtkFloatingPointType GetQuadraticArcAngle() const;


protected:
  VTKViewer_GeometryFilter();
  ~VTKViewer_GeometryFilter();

  virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);

  //special cases for performance
  
  int UnstructuredGridExecute (vtkDataSet *, vtkPolyData *, vtkInformation *);


  void BuildArcedPolygon(vtkIdType cellId, vtkUnstructuredGrid* input, vtkPolyData *output, bool triangulate = false);
    
private:
  typedef std::vector<vtkIdType> TVectorId;

private:
  TVectorId myVTK2ObjIds;
  int       myShowInside;
  int       myStoreMapping;
  int       myIsWireframeMode;

  vtkFloatingPointType    myMaxArcAngle;   // define max angle for mesh 2D quadratic element in the degrees
  bool      myIsBuildArc;     // flag for representation 2D quadratic element as arked polygon
};

#ifdef WIN32
#pragma warning ( default:4251 )
#endif

#endif