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83 lines
3.0 KiB
83 lines
3.0 KiB
2 years ago
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/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkExtractUserDefinedPiece.h,v $
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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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// .NAME vtkExtractUserDefinedPiece - Return user specified piece with ghost cells
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//
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// .SECTION Description
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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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// .SECTION See Also
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// vtkExtractUnstructuredGridPiece
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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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class VTK_PARALLEL_EXPORT vtkExtractUserDefinedPiece : public vtkExtractUnstructuredGridPiece
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{
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public:
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vtkTypeRevisionMacro(vtkExtractUserDefinedPiece, vtkExtractUnstructuredGridPiece);
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static vtkExtractUserDefinedPiece *New();
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virtual void PrintSelf(ostream& os, vtkIndent indent);
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//BTX
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typedef int (*UserDefFunc)(vtkIdType cellID, vtkUnstructuredGrid *grid, void *constantData);
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//ETX
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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) {this->InPiece = func; this->Modified();}
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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();
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virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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void ComputeCellTagsWithFunction(vtkIntArray *tags, vtkIdList *pointOwnership,
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vtkUnstructuredGrid *input);
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private:
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vtkExtractUserDefinedPiece(const vtkExtractUserDefinedPiece&); // Not implemented
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void operator=(const vtkExtractUserDefinedPiece&); // Not implemented
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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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