---

Patented/vtkMarchingContourFilter.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkMarchingContourFilter.h,v $
  Language:  C++

  Copyright (c) 1993-2002 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.

     THIS CLASS IS PATENTED UNDER UNITED STATES PATENT NUMBER 4,710,876
     "System and Method for the Display of Surface Structures Contained
     Within the Interior Region of a Solid Body".
     Application of this software for commercial purposes requires 
     a license grant from GE. Contact:

         Carl B. Horton
         Sr. Counsel, Intellectual Property
         3000 N. Grandview Blvd., W-710
         Waukesha, WI  53188
         Phone:  (262) 513-4022
         E-Mail: Carl.Horton@med.ge.com

     for more information.

=========================================================================*/
#ifndef __vtkMarchingContourFilter_h
#define __vtkMarchingContourFilter_h

#include "vtkDataSetToPolyDataFilter.h"

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

class vtkPointLocator;
class vtkScalarTree;

class VTK_PATENTED_EXPORT vtkMarchingContourFilter : public vtkDataSetToPolyDataFilter
{
public:
  vtkTypeRevisionMacro(vtkMarchingContourFilter,vtkDataSetToPolyDataFilter);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkMarchingContourFilter *New();


  void SetValue(int i, float value);
  float GetValue(int i);
  float *GetValues();
  void GetValues(float *contourValues);
  void SetNumberOfContours(int number);
  int GetNumberOfContours();
  void GenerateValues(int numContours, float range[2]);
  void GenerateValues(int numContours, float rangeStart, float 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(vtkPointLocator *locator);
  vtkGetObjectMacro(Locator,vtkPointLocator);

  void CreateDefaultLocator();

protected:
  vtkMarchingContourFilter();
  ~vtkMarchingContourFilter();

  void Execute();

  vtkContourValues *ContourValues;
  int ComputeNormals;
  int ComputeGradients;
  int ComputeScalars;
  vtkPointLocator *Locator;
  int UseScalarTree;
  vtkScalarTree *ScalarTree;
  
  //special contouring for structured points
  void StructuredPointsContour(int dim); 
  //special contouring for image data
  void ImageContour(int dim);
  //default if not structured data
  void DataSetContour();
private:
  vtkMarchingContourFilter(const vtkMarchingContourFilter&);  // Not implemented.
  void operator=(const vtkMarchingContourFilter&);  // Not implemented.
};

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

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

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

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


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

#endif

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