vtkboneImageConnectivityFilter.h

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

  Copyright 2010-2016, Numerics88 Solutions Ltd.
  http://www.numerics88.com/

  Copyright (c) Eric Nodwell and Steven K. Boyd
  See Copyright.txt 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 __vtkboneImageConnectivityFilter_h
#define __vtkboneImageConnectivityFilter_h

#include "vtkSimpleImageToImageFilter.h"
#include "vtkboneWin32Header.h"

// forward declarations
class vtkUnsignedIntArray;
class vtkIdList;
class vtkIdTypeArray;

class VTKBONE_EXPORT vtkboneImageConnectivityFilter : public vtkSimpleImageToImageFilter
{
public:
  static vtkboneImageConnectivityFilter* New();
  vtkTypeMacro(vtkboneImageConnectivityFilter,
                       vtkSimpleImageToImageFilter);
  void PrintSelf(ostream& os, vtkIndent indent);

  // These match the defines in vtkConnectivityFilter
  enum ExtractionMode_t {
    EXTRACT_SEEDED_REGIONS = 2,
    EXTRACT_SPECIFIED_REGIONS = 3,
    EXTRACT_LARGEST_REGION = 4,
    EXTRACT_ALL_REGIONS = 5,
    EXTRACT_CLOSEST_POINT_REGION = 6,
    EXTRACT_REGIONS_OF_SPECIFIED_SIZE = 7
  };


  vtkSetClampMacro(ExtractionMode,int,
            EXTRACT_SEEDED_REGIONS,EXTRACT_REGIONS_OF_SPECIFIED_SIZE);
  vtkGetMacro(ExtractionMode,int);
  void SetExtractionModeToSeededRegions()
    {this->SetExtractionMode(EXTRACT_SEEDED_REGIONS);};
  void SetExtractionModeToLargestRegion()
    {this->SetExtractionMode(EXTRACT_LARGEST_REGION);};
  void SetExtractionModeToSpecifiedRegions()
    {this->SetExtractionMode(EXTRACT_SPECIFIED_REGIONS);};
  void SetExtractionModeToClosestPointRegion()
    {this->SetExtractionMode(EXTRACT_CLOSEST_POINT_REGION);};
  void SetExtractionModeToAllRegions()
    {this->SetExtractionMode(EXTRACT_ALL_REGIONS);};
  void SetExtractionModeToRegionsOfSpecifiedSize()
    {this->SetExtractionMode(EXTRACT_REGIONS_OF_SPECIFIED_SIZE);};
  const char *GetExtractionModeAsString();

  void InitializeSeedList();

  void AddSeed(vtkIdType id);

  void DeleteSeed(vtkIdType id);

  void InitializeSpecifiedRegionList();

  void AddSpecifiedRegion(int id);

  void DeleteSpecifiedRegion(int id);


  vtkSetVector3Macro(ClosestPoint,double);
  vtkGetVectorMacro(ClosestPoint,double,3);


  vtkSetMacro(MinimumRegionSize,vtkIdType);
  vtkGetMacro(MinimumRegionSize,vtkIdType);


  vtkGetMacro(NumberOfExtractedRegions,unsigned int);

protected:
  vtkboneImageConnectivityFilter();
  ~vtkboneImageConnectivityFilter();

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

  virtual void SimpleExecute(vtkImageData*, vtkImageData*);

  int CalculateRegionSizes(
    vtkUnsignedIntArray* cmap_data,
    unsigned int numRegions,
    vtkIdTypeArray* regionSizes);

  int ExtractionMode; //how to extract regions
  vtkIdList *Seeds; //id's of points or cells used to seed regions
  vtkIdList *SpecifiedRegionIds; //regions specified for extraction
  double ClosestPoint[3];
  vtkIdType MinimumRegionSize;

  unsigned int NumberOfExtractedRegions;

private:
  // Prevent compiler from making default versions of these.
  vtkboneImageConnectivityFilter(const vtkboneImageConnectivityFilter&);
  void operator=(const vtkboneImageConnectivityFilter&);
};

#endif