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68 lines
2.5 KiB
68 lines
2.5 KiB
/*=========================================================================
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Program: Visualization Toolkit
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Module: $RCSfile: vtkDataSetTriangleFilter.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 vtkDataSetTriangleFilter - triangulate any type of dataset
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// .SECTION Description
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// vtkDataSetTriangleFilter generates n-dimensional simplices from any input
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// dataset. That is, 3D cells are converted to tetrahedral meshes, 2D cells
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// to triangles, and so on. The triangulation is guaranteed to be compatible.
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//
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// This filter uses simple 1D and 2D triangulation techniques for cells
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// that are of topological dimension 2 or less. For 3D cells--due to the
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// issue of face compatibility across quadrilateral faces (which way to
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// orient the diagonal?)--a fancier ordered Delaunay triangulation is used.
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// This approach produces templates on the fly for triangulating the
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// cells. The templates are then used to do the actual triangulation.
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//
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// .SECTION See Also
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// vtkOrderedTriangulator vtkTriangleFilter
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#ifndef __vtkDataSetTriangleFilter_h
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#define __vtkDataSetTriangleFilter_h
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#include "vtkUnstructuredGridAlgorithm.h"
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class vtkOrderedTriangulator;
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class VTK_GRAPHICS_EXPORT vtkDataSetTriangleFilter : public vtkUnstructuredGridAlgorithm
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{
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public:
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static vtkDataSetTriangleFilter *New();
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vtkTypeRevisionMacro(vtkDataSetTriangleFilter,vtkUnstructuredGridAlgorithm);
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void PrintSelf(ostream& os, vtkIndent indent);
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protected:
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vtkDataSetTriangleFilter();
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~vtkDataSetTriangleFilter();
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// Usual data generation method
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virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
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virtual int FillInputPortInformation(int port, vtkInformation *info);
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// Used to triangulate 3D cells
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vtkOrderedTriangulator *Triangulator;
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// Different execute methods depending on whether input is structured or not
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void StructuredExecute(vtkDataSet *, vtkUnstructuredGrid *);
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void UnstructuredExecute(vtkDataSet *, vtkUnstructuredGrid *);
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private:
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vtkDataSetTriangleFilter(const vtkDataSetTriangleFilter&); // Not implemented.
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void operator=(const vtkDataSetTriangleFilter&); // Not implemented.
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};
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#endif
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