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106 lines
3.6 KiB
106 lines
3.6 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkGenericDataSetTessellator.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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// .NAME vtkGenericDataSetTessellator - tessellates generic, higher-order datasets into linear cells
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// .SECTION Description
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// vtkGenericDataSetTessellator is a filter that subdivides a
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// vtkGenericDataSet into linear elements (i.e., linear VTK
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// cells). Tetrahedra are produced from 3D cells; triangles from 2D cells;
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// and lines from 1D cells. The subdivision process depends on the cell
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// tessellator associated with the input generic dataset, and its associated
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// error metric. (These can be specified by the user if necessary.)
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//
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// This filter is typically used to convert a higher-order, complex dataset
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// represented vtkGenericDataSet into a conventional vtkDataSet that can
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// be operated on by linear VTK graphics filters.
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// .SECTION See Also
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// vtkGenericDataSetTessellator vtkGenericCellTessellator
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// vtkGenericSubdivisionErrorMetric
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#ifndef __vtkGenericDataSetTessellator_h
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#define __vtkGenericDataSetTessellator_h
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#include "vtkUnstructuredGridAlgorithm.h"
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class vtkPointData;
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class vtkPointLocator;
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class VTK_GENERIC_FILTERING_EXPORT vtkGenericDataSetTessellator : public vtkUnstructuredGridAlgorithm
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{
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public:
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// Description:
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// Standard VTK methods.
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static vtkGenericDataSetTessellator *New();
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vtkTypeRevisionMacro(vtkGenericDataSetTessellator,
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vtkUnstructuredGridAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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// Description
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// Turn on/off generation of a cell centered attribute with ids of the
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// original cells (as an input cell is tessellated into several linear
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// cells).
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// The name of the data array is "OriginalIds". It is true by default.
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vtkSetMacro(KeepCellIds, int);
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vtkGetMacro(KeepCellIds, int);
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vtkBooleanMacro(KeepCellIds, int);
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// Description:
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// Turn on/off merging of coincident points. Note that is merging is
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// on, points with different point attributes (e.g., normals) are merged,
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// which may cause rendering artifacts.
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vtkSetMacro(Merging,int);
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vtkGetMacro(Merging,int);
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vtkBooleanMacro(Merging,int);
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// Description:
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// Set / get a spatial locator for merging points. By
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// default an instance of vtkMergePoints is used.
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void SetLocator(vtkPointLocator *locator);
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vtkGetObjectMacro(Locator,vtkPointLocator);
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// Description:
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// Create default locator. Used to create one when none is specified.
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void CreateDefaultLocator();
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// Description:
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// Return the MTime also considering the locator.
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unsigned long GetMTime();
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protected:
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vtkGenericDataSetTessellator();
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~vtkGenericDataSetTessellator();
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int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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int FillInputPortInformation(int, vtkInformation*);
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// See Set/Get KeepCellIds() for explanations.
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int KeepCellIds;
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// Used internal by vtkGenericAdaptorCell::Tessellate()
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vtkPointData *internalPD;
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int Merging;
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vtkPointLocator *Locator;
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private:
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vtkGenericDataSetTessellator(const vtkGenericDataSetTessellator&); // Not implemented.
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void operator=(const vtkGenericDataSetTessellator&); // Not implemented.
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};
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#endif
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