dox/Filtering/vtkMeanValueCoordinatesInterpolator.h

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

Program:   Visualization Toolkit
Module:    vtkMeanValueCoordinatesInterpolator.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 __vtkMeanValueCoordinatesInterpolator_h
#define __vtkMeanValueCoordinatesInterpolator_h

#include "vtkObject.h"

class vtkPoints;
class vtkIdList;
class vtkCellArray;
class vtkDataArray;

//Special internal class for iterating over data
class vtkMVCTriIterator;
class vtkMVCPolyIterator;


class VTK_FILTERING_EXPORT vtkMeanValueCoordinatesInterpolator : public vtkObject
{
public:

  static vtkMeanValueCoordinatesInterpolator *New();
  vtkTypeMacro(vtkMeanValueCoordinatesInterpolator,vtkObject);
  void PrintSelf(ostream& os, vtkIndent indent);


  static void ComputeInterpolationWeights(double x[3], vtkPoints *pts, 
                                          vtkIdList *tris, double *weights);
  

  static void ComputeInterpolationWeights(double x[3], vtkPoints *pts, 
                                          vtkCellArray *tris, double *weights);
protected:
  vtkMeanValueCoordinatesInterpolator();
  ~vtkMeanValueCoordinatesInterpolator();


  static void ComputeInterpolationWeightsForTriangleMesh(
    double x[3], vtkPoints *pts, vtkMVCTriIterator& iter, double *weights);


  static void ComputeInterpolationWeightsForPolygonMesh(
    double x[3], vtkPoints *pts, vtkMVCPolyIterator& iter, double *weights);
  

private:
  vtkMeanValueCoordinatesInterpolator(const vtkMeanValueCoordinatesInterpolator&);  // Not implemented.
  void operator=(const vtkMeanValueCoordinatesInterpolator&);  // Not implemented.
};

#endif