vtkPVGlyphFilter.h

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

  Program:   ParaView
  Module:    vtkPVGlyphFilter.h

  Copyright (c) Kitware, Inc.
  All rights reserved.
  See Copyright.txt or http://www.paraview.org/HTML/Copyright.html 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 vtkPVGlyphFilter_h
#define vtkPVGlyphFilter_h

#include "vtkPVVTKExtensionsFiltersGeneralModule.h" //needed for exports
#include "vtkPolyDataAlgorithm.h"

class vtkMultiProcessController;
class vtkTransform;

class VTKPVVTKEXTENSIONSFILTERSGENERAL_EXPORT vtkPVGlyphFilter : public vtkPolyDataAlgorithm
{
public:
  enum VectorScaleMode
  {
    SCALE_BY_MAGNITUDE,
    SCALE_BY_COMPONENTS
  };

  enum GlyphModeType
  {
    ALL_POINTS,
    EVERY_NTH_POINT,
    SPATIALLY_UNIFORM_DISTRIBUTION,
    SPATIALLY_UNIFORM_INVERSE_TRANSFORM_SAMPLING_SURFACE,
    SPATIALLY_UNIFORM_INVERSE_TRANSFORM_SAMPLING_VOLUME
  };

  vtkTypeMacro(vtkPVGlyphFilter, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
  static vtkPVGlyphFilter* New();


  void SetSourceConnection(int id, vtkAlgorithmOutput* algOutput);
  void SetSourceConnection(vtkAlgorithmOutput* algOutput)
  {
    this->SetSourceConnection(0, algOutput);
  }


  void SetController(vtkMultiProcessController*);
  vtkGetObjectMacro(Controller, vtkMultiProcessController);


  vtkSetClampMacro(VectorScaleMode, int, SCALE_BY_MAGNITUDE, SCALE_BY_COMPONENTS);
  vtkGetMacro(VectorScaleMode, int);


  void SetSourceTransform(vtkTransform*);
  vtkGetObjectMacro(SourceTransform, vtkTransform);

  vtkMTimeType GetMTime() override;


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


  vtkSetMacro(ScaleFactor, double);
  vtkGetMacro(ScaleFactor, double);


  vtkSetClampMacro(GlyphMode, int, ALL_POINTS, SPATIALLY_UNIFORM_INVERSE_TRANSFORM_SAMPLING_VOLUME);
  vtkGetMacro(GlyphMode, int);


  vtkSetClampMacro(Stride, int, 1, VTK_INT_MAX);
  vtkGetMacro(Stride, int);


  vtkSetMacro(Seed, int);
  vtkGetMacro(Seed, int);


  vtkSetClampMacro(MaximumNumberOfSamplePoints, int, 1, VTK_INT_MAX);
  vtkGetMacro(MaximumNumberOfSamplePoints, int);

  int ProcessRequest(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;

protected:
  vtkPVGlyphFilter();
  ~vtkPVGlyphFilter() override;

  // Standard Pipeline methods
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  virtual int RequestDataObject(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
  int FillInputPortInformation(int, vtkInformation*) override;
  int FillOutputPortInformation(int, vtkInformation*) override;

  virtual int IsPointVisible(unsigned int index, vtkDataSet* ds, vtkIdType ptId, bool cellCenters);

  bool IsInputArrayToProcessValid(vtkDataSet* input);

  vtkPolyData* GetSource(int idx, vtkInformationVector* sourceInfo);

  bool UseCellCenters(vtkDataSet* input);

  bool NeedsScalars();

  bool NeedsVectors();


  virtual bool Execute(
    unsigned int index, vtkDataSet* input, vtkInformationVector* sourceVector, vtkPolyData* output);
  virtual bool Execute(unsigned int index, vtkDataSet* input, vtkInformationVector* sourceVector,
    vtkPolyData* output, vtkDataArray* inSScalars, vtkDataArray* inVectors,
    bool cellCenters = false);

  int VectorScaleMode;
  vtkTransform* SourceTransform;
  double ScaleFactor;
  int GlyphMode;
  int MaximumNumberOfSamplePoints;
  int Seed;
  int Stride;
  vtkMultiProcessController* Controller;
  int OutputPointsPrecision;

private:
  vtkPVGlyphFilter(const vtkPVGlyphFilter&) = delete;
  void operator=(const vtkPVGlyphFilter&) = delete;

  class vtkInternals;
  vtkInternals* Internals;
};

#endif