vtkMaskPoints.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkMaskPoints_h
#define vtkMaskPoints_h

#include "vtkFiltersCoreModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
#include "vtkWrappingHints.h" // For VTK_MARSHALAUTO

VTK_ABI_NAMESPACE_BEGIN
class VTKFILTERSCORE_EXPORT VTK_MARSHALAUTO vtkMaskPoints : public vtkPolyDataAlgorithm
{
public:
  // Method used to pick points
  enum DistributionType
  {
    RANDOMIZED_ID_STRIDES,
    RANDOM_SAMPLING,
    SPATIALLY_STRATIFIED,
    UNIFORM_SPATIAL_BOUNDS,
    UNIFORM_SPATIAL_SURFACE,
    UNIFORM_SPATIAL_VOLUME
  };

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


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


  vtkSetClampMacro(MaximumNumberOfPoints, vtkIdType, 0, VTK_ID_MAX);
  vtkGetMacro(MaximumNumberOfPoints, vtkIdType);


  vtkSetClampMacro(Offset, vtkIdType, 0, VTK_ID_MAX);
  vtkGetMacro(Offset, vtkIdType);


  vtkSetMacro(RandomMode, bool);
  vtkGetMacro(RandomMode, bool);
  vtkBooleanMacro(RandomMode, bool);


  vtkSetMacro(RandomSeed, int);
  vtkGetMacro(RandomSeed, int);


  vtkSetClampMacro(RandomModeType, int, RANDOMIZED_ID_STRIDES, UNIFORM_SPATIAL_VOLUME);
  vtkGetMacro(RandomModeType, int);


  vtkSetMacro(ProportionalMaximumNumberOfPoints, bool);
  vtkGetMacro(ProportionalMaximumNumberOfPoints, bool);
  vtkBooleanMacro(ProportionalMaximumNumberOfPoints, bool);


  vtkSetMacro(GenerateVertices, bool);
  vtkGetMacro(GenerateVertices, bool);
  vtkBooleanMacro(GenerateVertices, bool);


  vtkSetMacro(SingleVertexPerCell, bool);
  vtkGetMacro(SingleVertexPerCell, bool);
  vtkBooleanMacro(SingleVertexPerCell, bool);


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

protected:
  vtkMaskPoints();
  ~vtkMaskPoints() override = default;

  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  int FillInputPortInformation(int port, vtkInformation* info) override;

  int OnRatio = 2;         // every OnRatio point is on; all others are off.
  vtkIdType Offset = 0;    // or starting point id.
  bool RandomMode = false; // turn on/off randomization.
  int RandomSeed = 1;
  vtkIdType MaximumNumberOfPoints;
  bool GenerateVertices = false; // generate polydata verts
  bool SingleVertexPerCell = false;
  int RandomModeType = RANDOMIZED_ID_STRIDES;
  bool ProportionalMaximumNumberOfPoints = false;
  int OutputPointsPrecision = DEFAULT_PRECISION;

  virtual void InternalScatter(unsigned long*, unsigned long*, int, int) {}
  virtual void InternalGather(unsigned long*, unsigned long*, int, int) {}
  virtual void InternalBroadcast(double*, int, int) {}
  virtual void InternalGather(double*, double*, int, int) {}
  virtual int InternalGetNumberOfProcesses() { return 1; }
  virtual int InternalGetLocalProcessId() { return 0; }
  virtual void InternalSplitController(int, int) {}
  virtual void InternalResetController() {}
  virtual void InternalBarrier() {}

  unsigned long GetLocalSampleSize(vtkIdType, int);
  double GetLocalAreaFactor(double, int);

private:
  vtkMaskPoints(const vtkMaskPoints&) = delete;
  void operator=(const vtkMaskPoints&) = delete;
};

VTK_ABI_NAMESPACE_END
#endif