vtkAngularPeriodicFilter.h

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

  Program:   Visualization Toolkit
  Module:    vtkPeriodicFiler.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 vtkAngularPeriodicFilter_h
#define vtkAngularPeriodicFilter_h

#include "vtkFiltersParallelModule.h" // For export macro
#include "vtkPeriodicFilter.h"

class vtkDataSetAttributes;
class vtkMultiPieceDataSet;
class vtkPointSet;

#define VTK_ROTATION_MODE_DIRECT_ANGLE 0  // Use user-provided angle
#define VTK_ROTATION_MODE_ARRAY_VALUE  1  // Use array from input data as angle

class VTKFILTERSPARALLEL_EXPORT vtkAngularPeriodicFilter : public vtkPeriodicFilter
{
public:
  static vtkAngularPeriodicFilter* New();
  vtkTypeMacro(vtkAngularPeriodicFilter, vtkPeriodicFilter);
  void PrintSelf(ostream& os, vtkIndent indent);


  vtkSetClampMacro(RotationMode, int,
    VTK_ROTATION_MODE_DIRECT_ANGLE, VTK_ROTATION_MODE_ARRAY_VALUE);
  vtkGetMacro(RotationMode, int);
  void SetRotationModeToDirectAngle()
    { this->SetRotationMode(VTK_ROTATION_MODE_DIRECT_ANGLE); }
  void SetRotationModeToArrayValue()
    { this->SetRotationMode(VTK_ROTATION_MODE_ARRAY_VALUE); }


  vtkSetMacro(RotationAngle, double);
  vtkGetMacro(RotationAngle, double);


  vtkSetStringMacro(RotationArrayName);
  vtkGetStringMacro(RotationArrayName);


  vtkSetClampMacro(RotationAxis, int, 0, 2);
  vtkGetMacro(RotationAxis, int);
  void SetRotationAxisToX();
  void SetRotationAxisToY();
  void SetRotationAxisToZ();


  vtkSetVector3Macro(Center, double);
  vtkGetVector3Macro(Center, double);

protected:
  vtkAngularPeriodicFilter();
  ~vtkAngularPeriodicFilter();

  virtual int RequestData(vtkInformation *,
                          vtkInformationVector **,
                          vtkInformationVector *);


  vtkDataArray* TransformDataArray(vtkDataArray* inputArray,
                                   double angle,
                                   bool useCenter = true,
                                   bool normalize = false);


  void AppendPeriodicPiece(double angle, vtkIdType iPiece,
                           vtkDataObject* inputNode,
                           vtkMultiPieceDataSet* multiPiece);


  virtual void SetPeriodNumber(vtkCompositeDataIterator* loc,
                               vtkCompositeDataSet* output,
                               int nbPeriod);


  void ComputePeriodicMesh(vtkPointSet* dataset, vtkPointSet* rotatedDataset,
                           double angle);


  void ComputeAngularPeriodicData(vtkDataSetAttributes* data,
                                  vtkDataSetAttributes* rotatedData,
                                  double angle);


  void CreatePeriodicDataSet(vtkCompositeDataIterator* loc,
                             vtkCompositeDataSet* output,
                             vtkCompositeDataSet* input);


  virtual void GeneratePieceName(vtkCompositeDataSet* input,
                                 vtkCompositeDataIterator* inputLoc,
                                 vtkMultiPieceDataSet* output,
                                 vtkIdType outputId);
private:
  vtkAngularPeriodicFilter(const vtkAngularPeriodicFilter&); // Not implemented.
  void operator=(const vtkAngularPeriodicFilter&); // Not implemented.

  int RotationMode;
  char* RotationArrayName;  // user-provided array name to use as angle, for ROTATION_MODE_ARRAY_VALUE

  // Transform parameters
  double RotationAngle;
  int RotationAxis;         // Axis to rotate around, 0 for X, 1 for Y, 2 for Z
  double Center[3];         // Center of rotation
};

#endif