Open Inventor Release 2024.2.0
 
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MxTetrahedronCellExtract.h
1/*=======================================================================
2 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), ***
3 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. ***
4 *** ***
5 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS ***
6 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR ***
7 *** WRITTEN AUTHORIZATION OF FEI S.A.S. ***
8 *** ***
9 *** RESTRICTED RIGHTS LEGEND ***
10 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS ***
11 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN ***
12 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT ***
13 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN ***
14 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. ***
15 *** ***
16 *** COPYRIGHT (C) 1996-2017 BY FEI S.A.S, ***
17 *** BORDEAUX, FRANCE ***
18 *** ALL RIGHTS RESERVED ***
19**=======================================================================*/
20/*=======================================================================
21** Author : VSG (MMM YYYY)
22**=======================================================================*/
23#ifndef _MxTetrahedronCellExtract_h
24#define _MxTetrahedronCellExtract_h
25
26#include <MeshVizXLM/mesh/geometry/MiGeometryI.h>
27
28#include <Inventor/STL/vector>
29#include <Inventor/STL/utility>
30
31class MxTabOfMarchingCase;
32class MiVolumeCell;
33
59class MESHVIZXLM_EXTR_API MxTetrahedronCellExtract
60{
61public:
62
68 static void getIsosurfTopology(unsigned char caseId, std::vector< std::pair<size_t,size_t> >& edgeList );
69
83 static MbVec3d getIsoParametricCoord(const MiGeometryI& meshGeometry, const MiVolumeCell* tetrahedronCell, const MbVec3d &point);
84
90 static MbVec3d getIsoParametricCoord(size_t nodeIndex)
91 {
92 return MbVec3d(s_nodesIsoParametricCoords[nodeIndex]);
93 }
94
114 static void getWeight(const MiGeometryI& meshGeometry, const MiVolumeCell* tetrahedronCell, const MbVec3d &point, std::vector<double>& weights)
115 {
116 MbVec3d ipcoord = getIsoParametricCoord(meshGeometry,tetrahedronCell,point);
117 getWeight(ipcoord,weights);
118 }
119
132 static void getWeight(const MbVec3d &ipcoord, std::vector<double>& weights)
133 {
134 ipcoord.getValue(weights[1],weights[2],weights[3]);
135 weights[0] = 1.0 - weights[1] - weights[2] - weights[3];
136 }
137
149 static void getDerivs(const MbVec3d &ipcoord, std::vector<double>& derivs);
150
164 static bool isPointInsideCell(const MiGeometryI& meshGeometry, const MiVolumeCell* tetrahedronCell, const MbVec3d &point, std::vector<double>& weights)
165 {
166 getWeight(getIsoParametricCoord(meshGeometry,tetrahedronCell,point),weights);
167 return ( -1.E-5 < weights[0] && weights[0] < 1 + 1.E-5 &&
168 -1.E-5 < weights[1] && weights[1] < 1 + 1.E-5 &&
169 -1.E-5 < weights[2] && weights[2] < 1 + 1.E-5 &&
170 -1.E-5 < weights[3] && weights[3] < 1 + 1.E-5);
171 }
172
176 static double getVolume(const MiGeometryI& meshGeometry, const MiVolumeCell* tetrahedronCell);
177
181 static MbVec3d getFacetNormal(size_t facetId, const MiGeometryI& meshGeometry, const MiVolumeCell* tetrahedronCell);
182
186 static double getLongestEdgeLength(const MiGeometryI& meshGeometry, const MiVolumeCell* cell);
187
191 static double getShortestEdgeLength(const MiGeometryI& meshGeometry, const MiVolumeCell* cell);
192
193private:
194
195 static bool initClass();
196 static void exitClass();
197
198 static void initMarchingCase0();
199 static void initMarchingCase1();
200 static void initMarchingCase2();
201
202 static bool s_isInit;
203 static MxTabOfMarchingCase* s_tabOfMarchingTetra;
204 static double s_nodesIsoParametricCoords[4][3];
205};
206
207#endif
208
const _T * getValue() const
Returns pointer to vector components.
Definition MbVec3.h:183
<a href="IconLegend.html"><img src="extMV.gif" alt="MeshViz" border="0"></a> Generic geometry interfa...
Definition MiGeometryI.h:39
<a href="IconLegend.html"><img src="extMV.gif" alt="MeshViz" border="0"></a> Defines an abstract cell...
<a href="IconLegend.html"><img src="extMV.gif" alt="MeshViz" border="0"></a> Utility class for tetrah...
static void getDerivs(const MbVec3d &ipcoord, std::vector< double > &derivs)
Gets the value of the derivatives of the shape functions (aka weights) at the point given by its iso ...
static void getWeight(const MbVec3d &ipcoord, std::vector< double > &weights)
Gets the weights of a point defined by its iso parametric coordinates.
static double getVolume(const MiGeometryI &meshGeometry, const MiVolumeCell *tetrahedronCell)
Gets the volume of a tetrahedron cell.
static MbVec3d getFacetNormal(size_t facetId, const MiGeometryI &meshGeometry, const MiVolumeCell *tetrahedronCell)
Gets the normal of the given facet in a tetrahedron cell.
static double getLongestEdgeLength(const MiGeometryI &meshGeometry, const MiVolumeCell *cell)
Gets the longest edge of a tetrahedron cell.
static void getIsosurfTopology(unsigned char caseId, std::vector< std::pair< size_t, size_t > > &edgeList)
Returns the isosurface topology of the associated caseId.
static void getWeight(const MiGeometryI &meshGeometry, const MiVolumeCell *tetrahedronCell, const MbVec3d &point, std::vector< double > &weights)
Gets the weights in the given cell of the given point.
static MbVec3d getIsoParametricCoord(const MiGeometryI &meshGeometry, const MiVolumeCell *tetrahedronCell, const MbVec3d &point)
Computes the iso parametric coordinates of the given point in the given cell with the given geometry.
static double getShortestEdgeLength(const MiGeometryI &meshGeometry, const MiVolumeCell *cell)
Gets the shortest edge of a tetrahedron cell.
static bool isPointInsideCell(const MiGeometryI &meshGeometry, const MiVolumeCell *tetrahedronCell, const MbVec3d &point, std::vector< double > &weights)
Checks if a point is inside or outside a tetrahedron cell.
static MbVec3d getIsoParametricCoord(size_t nodeIndex)
Returns the iso parametric coordinates of one of the 4 nodes of a tetrahedron cell.
MbVec3< double > MbVec3d
Vector of 3 double coordinates.
Definition MbVec3.h:532