vtkGenericInterpolatedVelocityField.h

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

  Program:   Visualization Toolkit
  Module:    $RCSfile: vtkGenericInterpolatedVelocityField.h,v $

  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 __vtkGenericInterpolatedVelocityField_h
#define __vtkGenericInterpolatedVelocityField_h

#include "vtkFunctionSet.h"

class vtkGenericDataSet;
class vtkGenericCellIterator;
class vtkGenericAdaptorCell;

class vtkGenericInterpolatedVelocityFieldDataSetsType;

class VTK_FILTERING_EXPORT vtkGenericInterpolatedVelocityField : public vtkFunctionSet
{
public:
  vtkTypeRevisionMacro(vtkGenericInterpolatedVelocityField,vtkFunctionSet);
  virtual void PrintSelf(ostream& os, vtkIndent indent);

  static vtkGenericInterpolatedVelocityField *New();

  virtual int FunctionValues(double* x, double* f);

  virtual void AddDataSet(vtkGenericDataSet* dataset);

  void ClearLastCell();

  vtkGenericAdaptorCell *GetLastCell();
  
  int GetLastLocalCoordinates(double pcoords[3]);


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


  vtkGetMacro(CacheHit, int);
  vtkGetMacro(CacheMiss, int);


  vtkGetStringMacro(VectorsSelection);
  void SelectVectors(const char *fieldName) 
    {this->SetVectorsSelection(fieldName);}
  

  vtkGetObjectMacro(LastDataSet, vtkGenericDataSet);

  virtual void CopyParameters(vtkGenericInterpolatedVelocityField* from);

protected:
  vtkGenericInterpolatedVelocityField();
  ~vtkGenericInterpolatedVelocityField();

  vtkGenericCellIterator *GenCell; // last cell

  double LastPCoords[3]; // last local coordinates
  int CacheHit;
  int CacheMiss;
  int Caching;

  vtkGenericDataSet* LastDataSet;

  vtkSetStringMacro(VectorsSelection);
  char *VectorsSelection;

  vtkGenericInterpolatedVelocityFieldDataSetsType* DataSets;

  int FunctionValues(vtkGenericDataSet* ds, double* x, double* f);

  static const double TOLERANCE_SCALE;

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

#endif

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