vtkTemporalPathLineFilter.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
#ifndef vtkTemporalPathLineFilter_h
#define vtkTemporalPathLineFilter_h
 
#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
 
VTK_ABI_NAMESPACE_BEGIN
class vtkPoints;
class vtkCellArray;
class vtkMergePoints;
class vtkFloatArray;
 
VTK_ABI_NAMESPACE_END
#include "vtkSmartPointer.h" // for memory safety
#include <set>               // Because we want to use it
VTK_ABI_NAMESPACE_BEGIN
class ParticleTrail;
class vtkTemporalPathLineFilterInternals;
typedef vtkSmartPointer<ParticleTrail> TrailPointer;
 
class VTKFILTERSGENERAL_EXPORT vtkTemporalPathLineFilter : public vtkPolyDataAlgorithm
{
public:
 
  static vtkTemporalPathLineFilter* New();
  vtkTypeMacro(vtkTemporalPathLineFilter, vtkPolyDataAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  vtkSetMacro(MaskPoints, int);
  vtkGetMacro(MaskPoints, int);
 
 
  vtkSetMacro(MaxTrackLength, unsigned int);
  vtkGetMacro(MaxTrackLength, unsigned int);
 
 
  vtkSetStringMacro(IdChannelArray);
  vtkGetStringMacro(IdChannelArray);
 
 
  vtkSetVector3Macro(MaxStepDistance, double);
  vtkGetVector3Macro(MaxStepDistance, double);
 
 
  vtkSetMacro(KeepDeadTrails, bool);
  vtkGetMacro(KeepDeadTrails, bool);
 
 
  virtual void SetBackwardTime(bool backward);
  vtkGetMacro(BackwardTime, bool);
 
  void Flush();
 
  void SetSelectionConnection(vtkAlgorithmOutput* algOutput);
 
  void SetSelectionData(vtkDataSet* input);
 
protected:
  vtkTemporalPathLineFilter();
  ~vtkTemporalPathLineFilter() override;
 
  //
  // Make sure the pipeline knows what type we expect as input
  //
  int FillInputPortInformation(int port, vtkInformation* info) override;
  int FillOutputPortInformation(int port, vtkInformation* info) override;
 
 
  int RequestInformation(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  //
  int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
 
  TrailPointer GetTrail(vtkIdType i);
  void IncrementTrail(TrailPointer trail, vtkDataSet* input, vtkIdType i);
 
  // internal data variables
  int NumberOfTimeSteps = 0;
  int MaskPoints = 200;
  unsigned int MaxTrackLength = 10;
  unsigned int LastTrackLength = 10;
  int FirstTime = 1;
  char* IdChannelArray = nullptr;
  double MaxStepDistance[3] = { 1, 1, 1 };
  double LatestTime;
  bool KeepDeadTrails = false;
  bool UsingSelection = false;
  bool BackwardTime = false;
  //
 
  vtkSmartPointer<vtkCellArray> PolyLines;
  vtkSmartPointer<vtkCellArray> Vertices;
  vtkSmartPointer<vtkPoints> LineCoordinates;
  vtkSmartPointer<vtkPoints> VertexCoordinates;
  vtkSmartPointer<vtkFloatArray> TrailId;
  vtkSmartPointer<vtkTemporalPathLineFilterInternals> Internals;
  std::set<vtkIdType> SelectionIds;
 
  //
private:
  vtkTemporalPathLineFilter(const vtkTemporalPathLineFilter&) = delete;
  void operator=(const vtkTemporalPathLineFilter&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif