vtkExtractCTHPart.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkExtractCTHPart.h

  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.

     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.

=========================================================================*/
#ifndef vtkExtractCTHPart_h
#define vtkExtractCTHPart_h

#include "vtkFiltersParallelModule.h" // For export macro
#include "vtkMultiBlockDataSetAlgorithm.h"

class vtkAppendPolyData;
class vtkContourFilter;
class vtkDataArray;
class vtkDataSet;
class vtkDataSetSurfaceFilter;
class vtkDoubleArray;
class vtkExtractCTHPartInternal;
class vtkImageData;
class vtkCompositeDataSet;
class vtkMultiProcessController;
class vtkPlane;
class vtkPolyData;
class vtkRectilinearGrid;
class vtkUniformGrid;
class vtkUnsignedCharArray;
class vtkExtractCTHPartFragments;

//#define EXTRACT_USE_IMAGE_DATA 1

class VTKFILTERSPARALLEL_EXPORT vtkExtractCTHPart : public vtkMultiBlockDataSetAlgorithm
{
public:
  static vtkExtractCTHPart *New();
  vtkTypeMacro(vtkExtractCTHPart,vtkMultiBlockDataSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);


  void AddVolumeArrayName(const char*);
  void RemoveVolumeArrayNames();
  int GetNumberOfVolumeArrayNames();
  const char* GetVolumeArrayName(int idx);


  void SetController(vtkMultiProcessController* controller);
  vtkGetObjectMacro(Controller,vtkMultiProcessController);


  vtkSetMacro(Capping, bool);
  vtkGetMacro(Capping, bool);
  vtkBooleanMacro(Capping, bool);


  vtkSetMacro(GenerateTriangles, bool);
  vtkGetMacro(GenerateTriangles, bool);
  vtkBooleanMacro(GenerateTriangles, bool);


  vtkSetMacro(RemoveGhostCells, bool);
  vtkGetMacro(RemoveGhostCells, bool);
  vtkBooleanMacro(RemoveGhostCells, bool);


  void SetClipPlane(vtkPlane *clipPlane);
  vtkGetObjectMacro(ClipPlane, vtkPlane);

  unsigned long GetMTime();


  vtkSetClampMacro(VolumeFractionSurfaceValue, double, 0.0, 1.0);
  vtkGetMacro(VolumeFractionSurfaceValue, double);

protected:
  vtkExtractCTHPart();
  ~vtkExtractCTHPart();

  virtual int FillInputPortInformation(int port, vtkInformation *info);
  virtual int RequestData(
    vtkInformation *, vtkInformationVector **, vtkInformationVector *);

  bool ComputeGlobalBounds(vtkCompositeDataSet *input);


  bool ExtractContour(
    vtkPolyData* output, vtkCompositeDataSet* input, const char*arrayName);

  void ExecuteFaceQuads(vtkDataSet *input,
                        vtkPolyData *output,
                        int maxFlag,
                        int originExtents[3],
                        int ext[6],
                        int aAxis,
                        int bAxis,
                        int cAxis);


  int IsGhostFace(int axis0,
                  int maxFlag,
                  int dims[3],
                  vtkUnsignedCharArray *ghostArray);

  void TriggerProgressEvent(double val);

  int VolumeFractionType;
  double VolumeFractionSurfaceValue;
  double VolumeFractionSurfaceValueInternal;
  bool GenerateTriangles;
  bool Capping;
  bool RemoveGhostCells;
  vtkPlane *ClipPlane;
  vtkMultiProcessController *Controller;
private:
  vtkExtractCTHPart(const vtkExtractCTHPart&);  // Not implemented.
  void operator=(const vtkExtractCTHPart&);  // Not implemented.

  class VectorOfFragments;


  template <class T>
  bool ExtractClippedContourOnBlock(
    vtkExtractCTHPart::VectorOfFragments& fragments, T* input, const char* arrayName);


  template <class T>
  bool ExtractContourOnBlock(
    vtkExtractCTHPart::VectorOfFragments& fragments, T* input, const char* arrayName);


  template <class T>
  void ExtractExteriorSurface(
    vtkExtractCTHPart::VectorOfFragments& fragments, T* input);


  void ExecuteCellDataToPointData(
    vtkDataArray *cellVolumeFraction, vtkDoubleArray *pointVolumeFraction, const int *dims);

  double ProgressShift;
  double ProgressScale;

  class ScaledProgress;
  friend class ScaledProgress;
  vtkExtractCTHPartInternal* Internals;
};
#endif