dox/Graphics/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 "vtkPolyDataAlgorithm.h"

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

class vtkIncrementalPointLocator;
class vtkScalarTree;

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

  static vtkMarchingContourFilter *New();


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

  unsigned long GetMTime();


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


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


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


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


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

  void CreateDefaultLocator();

protected:
  vtkMarchingContourFilter();
  ~vtkMarchingContourFilter();

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

  vtkContourValues *ContourValues;
  int ComputeNormals;
  int ComputeGradients;
  int ComputeScalars;
  vtkIncrementalPointLocator *Locator;
  int 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&);  // Not implemented.
  void operator=(const vtkMarchingContourFilter&);  // Not implemented.
};


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 int 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