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

  Program:   Visualization Toolkit
  Module:    vtkParametricFunctionSource.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 vtkParametricFunctionSource_h
#define vtkParametricFunctionSource_h

#include "vtkFiltersSourcesModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"

class vtkCellArray;
class vtkParametricFunction;

class VTKFILTERSSOURCES_EXPORT vtkParametricFunctionSource : public vtkPolyDataAlgorithm
{
public:
  vtkTypeMacro(vtkParametricFunctionSource,vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent);

  static vtkParametricFunctionSource *New();


  virtual void SetParametricFunction(vtkParametricFunction*);
  vtkGetObjectMacro(ParametricFunction,vtkParametricFunction);


  vtkSetClampMacro(UResolution,int,2,VTK_INT_MAX);
  vtkGetMacro(UResolution,int);


  vtkSetClampMacro(VResolution,int,2,VTK_INT_MAX);
  vtkGetMacro(VResolution,int);


  vtkSetClampMacro(WResolution,int,2,VTK_INT_MAX);
  vtkGetMacro(WResolution,int);


  vtkBooleanMacro(GenerateTextureCoordinates,int);
  vtkSetClampMacro(GenerateTextureCoordinates,int,0,1);
  vtkGetMacro(GenerateTextureCoordinates,int);


  vtkBooleanMacro(GenerateNormals,int);
  vtkSetClampMacro(GenerateNormals,int,0,1);
  vtkGetMacro(GenerateNormals,int);


  enum SCALAR_MODE { SCALAR_NONE = 0,
    SCALAR_U, SCALAR_V,
    SCALAR_U0, SCALAR_V0, SCALAR_U0V0,
    SCALAR_MODULUS, SCALAR_PHASE, SCALAR_QUADRANT,
    SCALAR_X, SCALAR_Y, SCALAR_Z, SCALAR_DISTANCE,
    SCALAR_FUNCTION_DEFINED };


  vtkSetClampMacro(ScalarMode, int, SCALAR_NONE, SCALAR_FUNCTION_DEFINED);
  vtkGetMacro(ScalarMode, int);
  void SetScalarModeToNone( void ) {this->SetScalarMode(SCALAR_NONE);}
  void SetScalarModeToU( void ) {this->SetScalarMode(SCALAR_U);}
  void SetScalarModeToV( void ) {this->SetScalarMode(SCALAR_V);}
  void SetScalarModeToU0( void ) {this->SetScalarMode(SCALAR_U0);}
  void SetScalarModeToV0( void ) {this->SetScalarMode(SCALAR_V0);}
  void SetScalarModeToU0V0( void ) {this->SetScalarMode(SCALAR_U0V0);}
  void SetScalarModeToModulus( void ) {this->SetScalarMode(SCALAR_MODULUS);}
  void SetScalarModeToPhase( void ) {this->SetScalarMode(SCALAR_PHASE);}
  void SetScalarModeToQuadrant( void ) {this->SetScalarMode(SCALAR_QUADRANT);}
  void SetScalarModeToX( void ) {this->SetScalarMode(SCALAR_X);}
  void SetScalarModeToY( void ) {this->SetScalarMode(SCALAR_Y);}
  void SetScalarModeToZ( void ) {this->SetScalarMode(SCALAR_Z);}
  void SetScalarModeToDistance( void ) {this->SetScalarMode(SCALAR_DISTANCE);}
  void SetScalarModeToFunctionDefined( void )
    {this->SetScalarMode(SCALAR_FUNCTION_DEFINED);}

  unsigned long GetMTime();


  vtkSetMacro(OutputPointsPrecision,int);
  vtkGetMacro(OutputPointsPrecision,int);

protected:
  vtkParametricFunctionSource();
  virtual ~vtkParametricFunctionSource();

  // Usual data generation method
  int RequestData(vtkInformation *info, vtkInformationVector **input,
                  vtkInformationVector *output);

  // Variables
  vtkParametricFunction *ParametricFunction;

  int UResolution;
  int VResolution;
  int WResolution;
  int GenerateTextureCoordinates;
  int GenerateNormals;
  int ScalarMode;
  int OutputPointsPrecision;

private:
  // Create output depending on function dimension
  void Produce1DOutput(vtkInformationVector *output);
  void Produce2DOutput(vtkInformationVector *output);

  void MakeTriangles ( vtkCellArray * strips, int PtsU, int PtsV );

  vtkParametricFunctionSource(const vtkParametricFunctionSource&);  // Not implemented.
  void operator=(const vtkParametricFunctionSource&);  // Not implemented.

};

#endif