1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/*=========================================================================
Program: Visualization Toolkit
Module: vtkDataSetTriangleFilter.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
// .NAME vtkDataSetTriangleFilter - triangulate any type of dataset
// .SECTION Description
// vtkDataSetTriangleFilter generates n-dimensional simplices from any input
// dataset. That is, 3D cells are converted to tetrahedral meshes, 2D cells
// to triangles, and so on. The triangulation is guaranteed to be compatible.
//
// This filter uses simple 1D and 2D triangulation techniques for cells
// that are of topological dimension 2 or less. For 3D cells--due to the
// issue of face compatibility across quadrilateral faces (which way to
// orient the diagonal?)--a fancier ordered Delaunay triangulation is used.
// This approach produces templates on the fly for triangulating the
// cells. The templates are then used to do the actual triangulation.
//
// .SECTION See Also
// vtkOrderedTriangulator vtkTriangleFilter
#ifndef __vtkDataSetTriangleFilter_h
#define __vtkDataSetTriangleFilter_h
#include "vtkUnstructuredGridAlgorithm.h"
class vtkOrderedTriangulator;
class VTK_GRAPHICS_EXPORT vtkDataSetTriangleFilter : public vtkUnstructuredGridAlgorithm
{
public:
static vtkDataSetTriangleFilter *New();
vtkTypeMacro(vtkDataSetTriangleFilter,vtkUnstructuredGridAlgorithm);
void PrintSelf(ostream& os, vtkIndent indent);
// Description:
// When On this filter will cull all 1D and 2D cells from the output.
// The default is Off.
vtkSetMacro(TetrahedraOnly, int);
vtkGetMacro(TetrahedraOnly, int);
vtkBooleanMacro(TetrahedraOnly, int);
protected:
vtkDataSetTriangleFilter();
~vtkDataSetTriangleFilter();
// Usual data generation method
virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
virtual int FillInputPortInformation(int port, vtkInformation *info);
// Used to triangulate 3D cells
vtkOrderedTriangulator *Triangulator;
// Different execute methods depending on whether input is structured or not
void StructuredExecute(vtkDataSet *, vtkUnstructuredGrid *);
void UnstructuredExecute(vtkDataSet *, vtkUnstructuredGrid *);
int TetrahedraOnly;
private:
vtkDataSetTriangleFilter(const vtkDataSetTriangleFilter&); // Not implemented.
void operator=(const vtkDataSetTriangleFilter&); // Not implemented.
};
#endif
|
