vtkMarchingContourFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkMarchingContourFilter.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 vtkMarchingContourFilter_h
#define vtkMarchingContourFilter_h

#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"

#include "vtkContourValues.h" // Needed for direct access to ContourValues

class vtkIncrementalPointLocator;
class vtkScalarTree;

class VTKFILTERSGENERAL_EXPORT vtkMarchingContourFilter : public vtkPolyDataAlgorithm
{
public:
  vtkTypeMacro(vtkMarchingContourFilter, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  static vtkMarchingContourFilter* New();


  void SetValue(int i, double value);
  double GetValue(int i);
  double* GetValues();
  void GetValues(double* contourValues);
  void SetNumberOfContours(int number);
  vtkIdType GetNumberOfContours();
  void GenerateValues(int numContours, double range[2]);
  void GenerateValues(int numContours, double rangeStart, double rangeEnd);

  vtkMTimeType GetMTime() override;


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


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


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


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


  void SetLocator(vtkIncrementalPointLocator* locator);
  vtkGetObjectMacro(Locator, vtkIncrementalPointLocator);

  void CreateDefaultLocator();

protected:
  vtkMarchingContourFilter();
  ~vtkMarchingContourFilter() override;

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

  vtkContourValues* ContourValues;
  vtkTypeBool ComputeNormals;
  vtkTypeBool ComputeGradients;
  vtkTypeBool ComputeScalars;
  vtkIncrementalPointLocator* Locator;
  vtkTypeBool UseScalarTree;
  vtkScalarTree* ScalarTree;

  // special contouring for structured points
  void StructuredPointsContour(int dim, vtkDataSet* input, vtkPolyData* output);
  // special contouring for image data
  void ImageContour(int dim, vtkDataSet* input, vtkPolyData* output);
  // default if not structured data
  void DataSetContour(vtkDataSet* input, vtkPolyData* output);

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

inline void vtkMarchingContourFilter::SetValue(int i, double value)
{
  this->ContourValues->SetValue(i, value);
}

inline double vtkMarchingContourFilter::GetValue(int i)
{
  return this->ContourValues->GetValue(i);
}

inline double* vtkMarchingContourFilter::GetValues()
{
  return this->ContourValues->GetValues();
}

inline void vtkMarchingContourFilter::GetValues(double* contourValues)
{
  this->ContourValues->GetValues(contourValues);
}

inline void vtkMarchingContourFilter::SetNumberOfContours(int number)
{
  this->ContourValues->SetNumberOfContours(number);
}

inline vtkIdType vtkMarchingContourFilter::GetNumberOfContours()
{
  return this->ContourValues->GetNumberOfContours();
}

inline void vtkMarchingContourFilter::GenerateValues(int numContours, double range[2])
{
  this->ContourValues->GenerateValues(numContours, range);
}

inline void vtkMarchingContourFilter::GenerateValues(
  int numContours, double rangeStart, double rangeEnd)
{
  this->ContourValues->GenerateValues(numContours, rangeStart, rangeEnd);
}

#endif