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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkRemovePolyData
* @brief Removes vtkPolyData cells from an input vtkPolyData
*
* vtkRemovePolyData is a filter that removes cells from an input vtkPolyData
* (defined in the first input #0), and produces an output vtkPolyData (which
* may be empty). The cells to remove are specified in the following ways:
* 1) a list of cell ids can be provided; 2) a list of point ids can be
* provided - any cell using one or more of the points indicated is removed;
* and 3) one or more additional vtkPolyData inputs can be provided -
* matching cells are deleted. These three methods can be used in combination
* if desired. Point and cell attribute data associated with the remaining
* cells are copied to the output.
*
* @warning
* The filter vtkAppendPolyData enables appending multiple input
* vtkPolyData's together. So vtkAppendPolyData functions as an
* approximate inverse operation to vtkRemovePolyData.
*
* @warning
* The output point type is the same as the (first) input point type.
*
* @sa
* vtkAppendPolyData
*/
#ifndef vtkRemovePolyData_h
#define vtkRemovePolyData_h
#include "vtkFiltersGeneralModule.h" // For export macro
#include "vtkPolyDataAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkCellArray;
class vtkDataArray;
class vtkPoints;
class vtkPolyData;
class vtkIdTypeArray;
class VTKFILTERSGENERAL_EXPORT vtkRemovePolyData : public vtkPolyDataAlgorithm
{
public:
///@{
/**
* Standard methods to instantiate, obtain information, and print information.
*
*/
static vtkRemovePolyData* New();
vtkTypeMacro(vtkRemovePolyData, vtkPolyDataAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
///@}
/**
* Remove a vtkPolyData dataset from the list of data.
*/
void RemoveInputData(vtkPolyData*);
///@{
/**
* Get any input of this filter.
*/
vtkPolyData* GetInput(int idx);
vtkPolyData* GetInput() { return this->GetInput(0); }
///@}
///@{
/**
* Set/Get the list of cell ids to delete. These are cell ids of the input
* polydata - note that polydata with mixed cell types (e.g., verts, lines,
* polys, and/or strips), the cell ids begin with the vertex cells, then
* line cells, then polygonal cells, and finally triangle strips.
*/
void SetCellIds(vtkIdTypeArray*);
vtkGetObjectMacro(CellIds, vtkIdTypeArray);
///@}
///@{
/**
* Set/Get the list of points ids to delete. Any cells using any of the
* points listed are removed.
*/
void SetPointIds(vtkIdTypeArray*);
vtkGetObjectMacro(PointIds, vtkIdTypeArray);
///@}
///@{
/**
* ExactMatch controls how the matching of cells when additional input
* vtkPolyDatas are provided. When ExactMatch is enabled, then if any
* input0 cell Ci uses all of the point ids in cells specified in inputs
* [1,N) Cn, and the number of point ids in Ci == Cn, then a match occurs
* and the cell is marked for deletion. Without ExactMatch enabled, if Ci
* uses all of the points in Cn, even though the cell connectivity list
* sizes are not the same size, a match occurs. This can be used to perform
* tricks like marking all of the cells that use a point or edge to be
* deleted. ExactMatch is disabled by default since it takes a extra
* computation time.
*/
vtkSetMacro(ExactMatch, bool);
vtkGetMacro(ExactMatch, bool);
vtkBooleanMacro(ExactMatch, bool);
///@}
protected:
vtkRemovePolyData();
~vtkRemovePolyData() override;
// Usual data generation related methods
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int RequestUpdateExtent(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int FillInputPortInformation(int, vtkInformation*) override;
private:
vtkIdTypeArray* CellIds;
vtkIdTypeArray* PointIds;
bool ExactMatch;
vtkRemovePolyData(const vtkRemovePolyData&) = delete;
void operator=(const vtkRemovePolyData&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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