vtkAppendDataSets.h

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

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

VTK_ABI_NAMESPACE_BEGIN
class vtkDataObjectMeshCache;
class vtkDataSet;
class vtkDataSetCollection;

class VTKFILTERSCORE_EXPORT VTK_MARSHALAUTO vtkAppendDataSets : public vtkPointSetAlgorithm
{
public:
  static vtkAppendDataSets* New();
  vtkTypeMacro(vtkAppendDataSets, vtkPointSetAlgorithm);
  void PrintSelf(ostream& os, vtkIndent indent) override;


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


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


  vtkSetClampMacro(Tolerance, double, 0.0, VTK_DOUBLE_MAX);
  vtkGetMacro(Tolerance, double);


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


  vtkSetMacro(OutputDataSetType, int);
  vtkGetMacro(OutputDataSetType, int);


  vtkSetClampMacro(OutputPointsPrecision, int, SINGLE_PRECISION, DEFAULT_PRECISION);
  vtkGetMacro(OutputPointsPrecision, int);

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

protected:
  vtkAppendDataSets();
  ~vtkAppendDataSets() override;

  // Usual data generation method
  int RequestDataObject(vtkInformation* request, vtkInformationVector** inputVector,
    vtkInformationVector* outputVector) override;
  int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
  virtual int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*);
  int FillInputPortInformation(int port, vtkInformation* info) override;

  // If true we will attempt to merge points. Must also not have
  // ghost cells defined.
  bool MergePoints;

  // Tolerance used for point merging
  double Tolerance;

  // If true, tolerance is used as is. If false, tolerance is multiplied by
  // the diagonal of the bounding box of the input.
  bool ToleranceIsAbsolute;

  // Output data set type.
  int OutputDataSetType;

  // Precision of output points.
  int OutputPointsPrecision;

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

  bool UseImplicitArray = false;

  // Get all input data sets that have points, cells, or both.
  // Caller must delete the returned vtkDataSetCollection.
  vtkDataSetCollection* GetNonEmptyInputs(vtkInformationVector** inputVector);

  vtkNew<vtkDataObjectMeshCache> MeshCache;
};

VTK_ABI_NAMESPACE_END
#endif