vtkImageConnectivityFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkImageConnectivityFilter.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.

=========================================================================*/
/*=========================================================================
  Copyright (c) 2014 David Gobbi
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions
  are met:

  * Redistributions of source code must retain the above copyright
    notice, this list of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
    documentation and/or other materials provided with the distribution.

  * Neither the name of David Gobbi nor the names of any contributors
    may be used to endorse or promote products derived from this software
    without specific prior written permission.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=========================================================================*/
#ifndef vtkImageConnectivityFilter_h
#define vtkImageConnectivityFilter_h

#include "vtkImagingMorphologicalModule.h" // For export macro
#include "vtkImageAlgorithm.h"

class vtkIdTypeArray;
class vtkIntArray;
class vtkDataSet;
class vtkImageData;
class vtkImageStencilData;

class VTKIMAGINGMORPHOLOGICAL_EXPORT vtkImageConnectivityFilter :
  public vtkImageAlgorithm
{
public:
  static vtkImageConnectivityFilter *New();
  vtkTypeMacro(vtkImageConnectivityFilter, vtkImageAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  enum LabelModeEnum {
    SeedScalar = 0,
    ConstantValue = 1,
    SizeRank = 2
  };

  enum ExtractionModeEnum {
    SeededRegions = 0,
    AllRegions = 1,
    LargestRegion = 2
  };


  void SetSeedConnection(vtkAlgorithmOutput *port);
  vtkAlgorithmOutput *GetSeedConnection();
  void SetSeedData(vtkDataSet *data);


  void SetStencilConnection(vtkAlgorithmOutput *port);
  vtkAlgorithmOutput *GetStencilConnection();
  void SetStencilData(vtkImageStencilData *data);


  void SetLabelScalarTypeToUnsignedChar() {
    this->SetLabelScalarType(VTK_UNSIGNED_CHAR); }
  void SetLabelScalarTypeToShort() {
    this->SetLabelScalarType(VTK_SHORT); }
  void SetLabelScalarTypeToUnsignedShort() {
    this->SetLabelScalarType(VTK_UNSIGNED_SHORT); }
  void SetLabelScalarTypeToInt() {
    this->SetLabelScalarType(VTK_INT); }
  const char *GetLabelScalarTypeAsString();
  vtkSetMacro(LabelScalarType, int);
  vtkGetMacro(LabelScalarType, int);


  void SetLabelModeToSeedScalar() { this->SetLabelMode(SeedScalar); }
  void SetLabelModeToConstantValue() { this->SetLabelMode(ConstantValue); }
  void SetLabelModeToSizeRank() { this->SetLabelMode(SizeRank); }
  const char *GetLabelModeAsString();
  vtkSetMacro(LabelMode, int);
  vtkGetMacro(LabelMode, int);


  void SetExtractionModeToSeededRegions(){
    this->SetExtractionMode(SeededRegions); }
  void SetExtractionModeToAllRegions() {
    this->SetExtractionMode(AllRegions); }
  void SetExtractionModeToLargestRegion() {
    this->SetExtractionMode(LargestRegion); }
  const char *GetExtractionModeAsString();
  vtkSetMacro(ExtractionMode, int);
  vtkGetMacro(ExtractionMode, int);


  vtkSetMacro(LabelConstantValue, int);
  vtkGetMacro(LabelConstantValue, int);

  vtkIdType GetNumberOfExtractedRegions();

  vtkIdTypeArray *GetExtractedRegionLabels() {
    return this->ExtractedRegionLabels; }

  // Description:
  // Get the size of each extracted region, as a voxel count.
  vtkIdTypeArray *GetExtractedRegionSizes() {
    return this->ExtractedRegionSizes; }

  vtkIdTypeArray *GetExtractedRegionSeedIds() {
    return this->ExtractedRegionSeedIds; }

  vtkIntArray *GetExtractedRegionExtents() {
    return this->ExtractedRegionExtents; }


  vtkSetMacro(GenerateRegionExtents, vtkTypeBool);
  vtkBooleanMacro(GenerateRegionExtents, vtkTypeBool);
  vtkGetMacro(GenerateRegionExtents, vtkTypeBool);


  vtkSetVector2Macro(SizeRange, vtkIdType);
  vtkGetVector2Macro(SizeRange, vtkIdType);


  vtkSetVector2Macro(ScalarRange, double);
  vtkGetVector2Macro(ScalarRange, double);


  vtkSetMacro(ActiveComponent, int);
  vtkGetMacro(ActiveComponent, int);

protected:
  vtkImageConnectivityFilter();
  ~vtkImageConnectivityFilter() override;

  int LabelMode;
  int ExtractionMode;

  double ScalarRange[2];
  vtkIdType SizeRange[2];
  int LabelConstantValue;
  int ActiveComponent;
  int LabelScalarType;
  vtkTypeBool GenerateRegionExtents;

  vtkIdTypeArray *ExtractedRegionLabels;
  vtkIdTypeArray *ExtractedRegionSizes;
  vtkIdTypeArray *ExtractedRegionSeedIds;
  vtkIntArray *ExtractedRegionExtents;

  void ComputeInputUpdateExtent(int inExt[6], int outExt[6]);

  int FillInputPortInformation(int port, vtkInformation *info) override;
  int RequestInformation(
    vtkInformation *, vtkInformationVector **, vtkInformationVector *) override;
  int RequestUpdateExtent(
    vtkInformation *, vtkInformationVector **, vtkInformationVector *) override;
  int RequestData(
    vtkInformation *, vtkInformationVector **, vtkInformationVector *) override;

private:
  vtkImageConnectivityFilter(const vtkImageConnectivityFilter&) = delete;
  void operator=(const vtkImageConnectivityFilter&) = delete;
};

#endif