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patented/vtkImageMarchingCubes.h

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

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

Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
All rights reserved.

    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:
        Jerald Roehling
        GE Licensing
        One Independence Way
        PO Box 2023
        Princeton, N.J. 08540
        phone 609-734-9823
        e-mail:Roehlinj@gerlmo.ge.com
    for more information.

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 name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
   of any contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.

 * Modified source versions must be plainly marked as such, and must not be
   misrepresented as being the original software.

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 AUTHORS 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 __vtkImageMarchingCubes_h
#define __vtkImageMarchingCubes_h

#include "vtkImageData.h"
#include "vtkPolyDataSource.h"
#include "vtkContourValues.h"

class VTK_EXPORT vtkImageMarchingCubes : public vtkPolyDataSource
{
public:
  static vtkImageMarchingCubes *New();
  vtkTypeMacro(vtkImageMarchingCubes,vtkPolyDataSource);
  void PrintSelf(ostream& os, vtkIndent indent);
  
  void SetInput(vtkImageData *input);
  vtkImageData *GetInput();
  
  // Methods to set contour values
  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);

  // Because we delegate to vtkContourValues & refer to vtkImplicitFunction
  unsigned long int GetMTime();

  vtkSetMacro(ComputeScalars, int);
  vtkGetMacro(ComputeScalars, int);
  vtkBooleanMacro(ComputeScalars, int);
  
  vtkSetMacro(ComputeNormals, int);
  vtkGetMacro(ComputeNormals, int);
  vtkBooleanMacro(ComputeNormals, int);
  
  vtkSetMacro(ComputeGradients, int);
  vtkGetMacro(ComputeGradients, int);
  vtkBooleanMacro(ComputeGradients, int);
  
  // Should be protected, but the templated functions need these
  int ComputeScalars;
  int ComputeNormals;
  int ComputeGradients;
  int NeedGradients;

  vtkCellArray *Triangles;
  vtkScalars *Scalars;
  vtkPoints *Points;
  vtkNormals *Normals;
  vtkVectors *Gradients;
  
  int GetLocatorPoint(int cellX, int cellY, int edge);
  void AddLocatorPoint(int cellX, int cellY, int edge, int ptId);
  void IncrementLocatorZ();

  void Update();
  
  vtkSetMacro(InputMemoryLimit, int);
  vtkGetMacro(InputMemoryLimit, int);

protected:
  vtkImageMarchingCubes();
  ~vtkImageMarchingCubes();
  vtkImageMarchingCubes(const vtkImageMarchingCubes&) {};
  void operator=(const vtkImageMarchingCubes&) {};

  int NumberOfSlicesPerChunk;
  int InputMemoryLimit;

  vtkContourValues *ContourValues;
   
  int *LocatorPointIds;
  int LocatorDimX;
  int LocatorDimY;
  int LocatorMinX;
  int LocatorMinY;
  
  void Execute();

  void March(vtkImageData *inData, int chunkMin, int chunkMax,
             int numContours, float *values);
  void InitializeLocator(int min0, int max0, int min1, int max1);
  void DeleteLocator();
  int *GetLocatorPointer(int cellX, int cellY, int edge);
};

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

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

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

inline void vtkImageMarchingCubes::GetValues(float *contourValues)
{this->ContourValues->GetValues(contourValues);}

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

inline int vtkImageMarchingCubes::GetNumberOfContours()
{return this->ContourValues->GetNumberOfContours();}

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

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

#endif

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