Open Inventor Release 2024.2.1
 
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MxQuadrangleCellExtract.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 _MxQuadrangleCellExtract_h
24#define _MxQuadrangleCellExtract_h
25
26#include <MeshVizXLM/mesh/geometry/MiGeometryI.h>
27
28#include <Inventor/STL/vector>
29#include <Inventor/STL/utility>
30
31class MiSurfaceCell;
32
56class MESHVIZXLM_EXTR_API MxQuadrangleCellExtract
57{
58public:
59
73 static MbVec3d getIsoParametricCoord(const MiGeometryI& meshGeometry, const MiSurfaceCell* quadrangleCell, const MbVec3d &point);
74
80 static MbVec3d getIsoParametricCoord(size_t nodeIndex);
81
101 static void getWeight(const MiGeometryI& meshGeometry, const MiSurfaceCell* quadrangleCell, const MbVec3d &point, std::vector<double>& weights)
102 {
103 getWeight(getIsoParametricCoord(meshGeometry,quadrangleCell,point),weights);
104 }
105
118 static void getWeight(const MbVec3d &ipcoord, std::vector<double>& weights)
119 {
120 double rm, sm;
121
122 rm = 1. - ipcoord[0];
123 sm = 1. - ipcoord[1];
124
125 weights[0] = rm*sm;
126 weights[1] = ipcoord[0]*sm;
127 weights[2] = ipcoord[0]*ipcoord[1];
128 weights[3] = rm*ipcoord[1];
129 }
130
142 static void getDerivs(const MbVec3d &ipcoord, std::vector<double>& derivs);
143
157 static bool isPointInsideCell(const MiGeometryI& meshGeometry, const MiSurfaceCell* quadrangleCell, const MbVec3d &point, std::vector<double>& weights)
158 {
159 MbVec3d pcoord = getIsoParametricCoord(meshGeometry,quadrangleCell,point);
160 bool inside = ( -1.E-5 < pcoord[0] && pcoord[0] < 1 + 1.E-5 &&
161 -1.E-5 < pcoord[1] && pcoord[1] < 1 + 1.E-5 );
162 if (inside)
163 getWeight(pcoord,weights);
164 return inside;
165 }
166
170 static double getLongestEdgeLength(const MiGeometryI& meshGeometry, const MiSurfaceCell* cell);
171
175 static double getShortestEdgeLength(const MiGeometryI& meshGeometry, const MiSurfaceCell* cell);
176
177private:
178
179 static bool initClass();
180 static void exitClass();
181
182 static bool s_isInit;
183 static double s_nodesIsoParametricCoords[4][3];
184};
185
186#endif
187
<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 quadra...
static void getWeight(const MbVec3d &ipcoord, std::vector< double > &weights)
Gets the weights of a point defined by its iso parametric coordinates.
static MbVec3d getIsoParametricCoord(const MiGeometryI &meshGeometry, const MiSurfaceCell *quadrangleCell, 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 MiSurfaceCell *cell)
Gets the shortest edge of a quadrangle cell.
static double getLongestEdgeLength(const MiGeometryI &meshGeometry, const MiSurfaceCell *cell)
Gets the longest edge of a quadrangle cell.
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 MbVec3d getIsoParametricCoord(size_t nodeIndex)
Returns the iso parametric coordinates of one of the 4 nodes of a quadrangle cell.
static void getWeight(const MiGeometryI &meshGeometry, const MiSurfaceCell *quadrangleCell, const MbVec3d &point, std::vector< double > &weights)
Gets the weights in the given cell of the given point.
static bool isPointInsideCell(const MiGeometryI &meshGeometry, const MiSurfaceCell *quadrangleCell, const MbVec3d &point, std::vector< double > &weights)
Checks if a point is inside or outside a quadrangle cell.