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88 lines
3.0 KiB
C++
88 lines
3.0 KiB
C++
/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkExtractUserDefinedPiece.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/*----------------------------------------------------------------------------
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Copyright (c) Sandia Corporation
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See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
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----------------------------------------------------------------------------*/
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/**
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* @class vtkExtractUserDefinedPiece
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* @brief Return user specified piece with ghost cells
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*
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*
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* Provided a function that determines which cells are zero-level
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* cells ("the piece"), this class outputs the piece with the
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* requested number of ghost levels. The only difference between
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* this class and the class it is derived from is that the
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* zero-level cells are specified by a function you provide,
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* instead of determined by dividing up the cells based on cell Id.
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*
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* @sa
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* vtkExtractUnstructuredGridPiece
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*/
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#ifndef vtkExtractUserDefinedPiece_h
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#define vtkExtractUserDefinedPiece_h
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#include "vtkExtractUnstructuredGridPiece.h"
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#include "vtkFiltersParallelModule.h" // For export macro
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class VTKFILTERSPARALLEL_EXPORT vtkExtractUserDefinedPiece : public vtkExtractUnstructuredGridPiece
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{
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public:
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vtkTypeMacro(vtkExtractUserDefinedPiece, vtkExtractUnstructuredGridPiece);
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static vtkExtractUserDefinedPiece* New();
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void PrintSelf(ostream& os, vtkIndent indent) override;
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typedef int (*UserDefFunc)(vtkIdType cellID, vtkUnstructuredGrid* grid, void* constantData);
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// Set the function used to identify the piece. The function should
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// return 1 if the cell is in the piece, and 0 otherwise.
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void SetPieceFunction(UserDefFunc func)
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{
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this->InPiece = func;
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this->Modified();
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}
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// Set constant data to be used by the piece identifying function.
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void SetConstantData(void* data, int len);
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// Get constant data to be used by the piece identifying function.
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// Return the length of the data buffer.
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int GetConstantData(void** data);
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// The function should return 1 if the cell
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// is in the piece, and 0 otherwise.
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protected:
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vtkExtractUserDefinedPiece();
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~vtkExtractUserDefinedPiece() override;
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int RequestData(vtkInformation*, vtkInformationVector**, vtkInformationVector*) override;
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void ComputeCellTagsWithFunction(
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vtkIntArray* tags, vtkIdList* pointOwnership, vtkUnstructuredGrid* input);
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private:
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vtkExtractUserDefinedPiece(const vtkExtractUserDefinedPiece&) = delete;
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void operator=(const vtkExtractUserDefinedPiece&) = delete;
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void* ConstantData;
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int ConstantDataLen;
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UserDefFunc InPiece;
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};
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#endif
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