vtkImageMarchingCubes.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkImageMarchingCubes.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 vtkImageMarchingCubes_h
#define vtkImageMarchingCubes_h
 
#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
 
#include "vtkContourValues.h" // Needed for direct access to ContourValues
 
class vtkCellArray;
class vtkFloatArray;
class vtkImageData;
class vtkPoints;
 
class VTKFILTERSGENERAL_EXPORT vtkImageMarchingCubes : public vtkPolyDataAlgorithm
{
public:
  static vtkImageMarchingCubes* New();
  vtkTypeMacro(vtkImageMarchingCubes, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  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(ComputeScalars, vtkTypeBool);
  vtkGetMacro(ComputeScalars, vtkTypeBool);
  vtkBooleanMacro(ComputeScalars, vtkTypeBool);
 
 
  vtkSetMacro(ComputeNormals, vtkTypeBool);
  vtkGetMacro(ComputeNormals, vtkTypeBool);
  vtkBooleanMacro(ComputeNormals, vtkTypeBool);
 
 
  vtkSetMacro(ComputeGradients, vtkTypeBool);
  vtkGetMacro(ComputeGradients, vtkTypeBool);
  vtkBooleanMacro(ComputeGradients, vtkTypeBool);
 
  // Should be protected, but the templated functions need these
  vtkTypeBool ComputeScalars;
  vtkTypeBool ComputeNormals;
  vtkTypeBool ComputeGradients;
  int NeedGradients;
 
  vtkCellArray* Triangles;
  vtkFloatArray* Scalars;
  vtkPoints* Points;
  vtkFloatArray* Normals;
  vtkFloatArray* Gradients;
 
  vtkIdType GetLocatorPoint(int cellX, int cellY, int edge);
  void AddLocatorPoint(int cellX, int cellY, int edge, vtkIdType ptId);
  void IncrementLocatorZ();
 
 
  vtkSetMacro(InputMemoryLimit, vtkIdType);
  vtkGetMacro(InputMemoryLimit, vtkIdType);
 
protected:
  vtkImageMarchingCubes();
  ~vtkImageMarchingCubes() override;
 
  int NumberOfSlicesPerChunk;
  vtkIdType InputMemoryLimit;
 
  vtkContourValues* ContourValues;
 
  vtkIdType* LocatorPointIds;
  int LocatorDimX;
  int LocatorDimY;
  int LocatorMinX;
  int LocatorMinY;
 
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int FillInputPortInformation(int port, vtkInformation* info) override;
 
  void March(vtkImageData* inData, int chunkMin, int chunkMax, int numContours, double* values);
  void InitializeLocator(int min0, int max0, int min1, int max1);
  void DeleteLocator();
  vtkIdType* GetLocatorPointer(int cellX, int cellY, int edge);
 
private:
  vtkImageMarchingCubes(const vtkImageMarchingCubes&) = delete;
  void operator=(const vtkImageMarchingCubes&) = delete;
};
 
inline void vtkImageMarchingCubes::SetValue(int i, double value)
{
  this->ContourValues->SetValue(i, value);
}
 
inline double vtkImageMarchingCubes::GetValue(int i)
{
  return this->ContourValues->GetValue(i);
}
 
inline double* vtkImageMarchingCubes::GetValues()
{
  return this->ContourValues->GetValues();
}
 
inline void vtkImageMarchingCubes::GetValues(double* contourValues)
{
  this->ContourValues->GetValues(contourValues);
}
 
inline void vtkImageMarchingCubes::SetNumberOfContours(int number)
{
  this->ContourValues->SetNumberOfContours(number);
}
 
inline vtkIdType vtkImageMarchingCubes::GetNumberOfContours()
{
  return this->ContourValues->GetNumberOfContours();
}
 
inline void vtkImageMarchingCubes::GenerateValues(int numContours, double range[2])
{
  this->ContourValues->GenerateValues(numContours, range);
}
 
inline void vtkImageMarchingCubes::GenerateValues(
  int numContours, double rangeStart, double rangeEnd)
{
  this->ContourValues->GenerateValues(numContours, rangeStart, rangeEnd);
}
 
#endif