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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkExtractGeometry
* @brief extract cells that lie either entirely inside or outside of a specified
* implicit function
*
* vtkExtractGeometry extracts from its input dataset all cells that are either
* completely inside or outside of a specified implicit function. Any type of
* dataset can be input to this filter. On output the filter generates an
* unstructured grid.
*
* To use this filter you must specify an implicit function. You must also
* specify whether to extract cells laying inside or outside of the implicit
* function. (The inside of an implicit function is the negative values
* region.) An option exists to extract cells that are neither inside or
* outside (i.e., boundary).
*
* A more efficient version of this filter is available for vtkPolyData input.
* See vtkExtractPolyDataGeometry.
*
* @warning
* This class has been threaded with vtkSMPTools. Using TBB or other
* non-sequential type (set in the CMake variable
* VTK_SMP_IMPLEMENTATION_TYPE) may improve performance significantly.
*
* @sa
* vtkExtractPolyDataGeometry vtkGeometryFilter vtkExtractVOI
*/
#ifndef vtkExtractGeometry_h
#define vtkExtractGeometry_h
#include "vtkFiltersExtractionModule.h" // For export macro
#include "vtkUnstructuredGridAlgorithm.h"
VTK_ABI_NAMESPACE_BEGIN
class vtkImplicitFunction;
class VTKFILTERSEXTRACTION_EXPORT vtkExtractGeometry : public vtkUnstructuredGridAlgorithm
{
public:
vtkTypeMacro(vtkExtractGeometry, vtkUnstructuredGridAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent) override;
/**
* Construct object with ExtractInside turned on.
*/
static vtkExtractGeometry* New();
/**
* Return the MTime taking into account changes to the implicit function
*/
vtkMTimeType GetMTime() override;
///@{
/**
* Specify the implicit function for inside/outside checks.
*/
virtual void SetImplicitFunction(vtkImplicitFunction*);
vtkGetObjectMacro(ImplicitFunction, vtkImplicitFunction);
///@}
///@{
/**
* Boolean controls whether to extract cells that are inside of implicit
* function (ExtractInside == 1) or outside of implicit function
* (ExtractInside == 0).
*/
vtkSetMacro(ExtractInside, vtkTypeBool);
vtkGetMacro(ExtractInside, vtkTypeBool);
vtkBooleanMacro(ExtractInside, vtkTypeBool);
///@}
///@{
/**
* Boolean controls whether to extract cells that are partially inside.
* By default, ExtractBoundaryCells is off.
*/
vtkSetMacro(ExtractBoundaryCells, vtkTypeBool);
vtkGetMacro(ExtractBoundaryCells, vtkTypeBool);
vtkBooleanMacro(ExtractBoundaryCells, vtkTypeBool);
vtkSetMacro(ExtractOnlyBoundaryCells, vtkTypeBool);
vtkGetMacro(ExtractOnlyBoundaryCells, vtkTypeBool);
vtkBooleanMacro(ExtractOnlyBoundaryCells, vtkTypeBool);
///@}
protected:
vtkExtractGeometry(vtkImplicitFunction* f = nullptr);
~vtkExtractGeometry() override;
// Usual data generation method
int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
int FillInputPortInformation(int port, vtkInformation* info) override;
vtkImplicitFunction* ImplicitFunction;
vtkTypeBool ExtractInside;
vtkTypeBool ExtractBoundaryCells;
vtkTypeBool ExtractOnlyBoundaryCells;
private:
vtkExtractGeometry(const vtkExtractGeometry&) = delete;
void operator=(const vtkExtractGeometry&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif
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