graphics/vtkExtractPolyDataPiece.h Source File

00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkExtractPolyDataPiece.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00051 #ifndef __vtkExtractPolyDataPiece_h
00052 #define __vtkExtractPolyDataPiece_h
00053 
00054 #include "vtkPolyDataToPolyDataFilter.h"
00055 
00056 class VTK_EXPORT vtkExtractPolyDataPiece : public vtkPolyDataToPolyDataFilter
00057 {
00058 public:
00059   static vtkExtractPolyDataPiece *New();
00060   vtkTypeMacro(vtkExtractPolyDataPiece, vtkPolyDataToPolyDataFilter);
00061   void PrintSelf(ostream& os, vtkIndent indent);
00062   
00064   vtkSetMacro(CreateGhostCells, int);
00065   vtkGetMacro(CreateGhostCells, int);
00066   vtkBooleanMacro(CreateGhostCells, int);
00067   
00068 protected:
00069   vtkExtractPolyDataPiece();
00070   ~vtkExtractPolyDataPiece() {};
00071   vtkExtractPolyDataPiece(const vtkExtractPolyDataPiece&) {};
00072   void operator=(const vtkExtractPolyDataPiece&) {};
00073 
00074   // Usual data generation method
00075   void Execute();
00076   void ExecuteInformation();
00077   void ComputeInputUpdateExtents(vtkDataObject *out);
00078  
00079   // A method for labeling which piece the cells belong to.
00080   void ComputeCellTags(vtkIntArray *cellTags, vtkIdList *pointOwnership,
00081              int piece, int numPieces);
00082   
00083   void AddGhostLevel(vtkPolyData *input, vtkIntArray *cellTags, int ghostLevel);
00084   
00085   int CreateGhostCells;
00086 };
00087 
00088 #endif