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7fd59977 | 1 | // File: MeshTest_CheckTopology.cxx |
2 | // Created: 5.10.2004 | |
3 | // Author: Michael SAZONOV | |
4 | ||
5 | #include <MeshTest_CheckTopology.hxx> | |
6 | #include <BRep_Tool.hxx> | |
446e11f3 | 7 | #include <TColStd_PackedMapOfInteger.hxx> |
7fd59977 | 8 | #include <TopExp.hxx> |
9 | #include <TopExp_Explorer.hxx> | |
10 | #include <TopoDS_Edge.hxx> | |
11 | #include <TopoDS.hxx> | |
12 | #include <TopoDS_Face.hxx> | |
13 | #include <TopLoc_Location.hxx> | |
14 | #include <TopTools_IndexedMapOfShape.hxx> | |
15 | #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx> | |
16 | #include <TopTools_ListOfShape.hxx> | |
17 | #include <TopTools_ListIteratorOfListOfShape.hxx> | |
18 | #include <Poly_Triangulation.hxx> | |
19 | #include <Poly_PolygonOnTriangulation.hxx> | |
20 | #include <Poly_Connect.hxx> | |
21 | ||
22 | //======================================================================= | |
23 | //function : Perform | |
24 | //purpose : Performs checking | |
25 | //======================================================================= | |
26 | ||
27 | void MeshTest_CheckTopology::Perform () | |
28 | { | |
29 | TopTools_IndexedMapOfShape aMapF; | |
30 | TopTools_IndexedDataMapOfShapeListOfShape aMapEF; | |
31 | TopExp::MapShapes (myShape, TopAbs_FACE, aMapF); | |
32 | TopExp::MapShapesAndAncestors (myShape, TopAbs_EDGE, TopAbs_FACE, aMapEF); | |
33 | ||
34 | // check polygons | |
35 | Standard_Integer ie; | |
36 | for (ie=1; ie <= aMapEF.Extent(); ie++) { | |
37 | const TopoDS_Edge& aEdge = TopoDS::Edge(aMapEF.FindKey(ie)); | |
38 | const TopTools_ListOfShape& aFaces = aMapEF(ie); | |
39 | if (aFaces.Extent() < 2) continue; | |
40 | ||
41 | // get polygon on first face | |
42 | const TopoDS_Face& aFace1 = TopoDS::Face(aFaces.First()); | |
43 | TopLoc_Location aLoc1; | |
44 | Handle(Poly_Triangulation) aT1 = BRep_Tool::Triangulation(aFace1, aLoc1); | |
45 | Handle(Poly_PolygonOnTriangulation) aPoly1 = | |
46 | BRep_Tool::PolygonOnTriangulation(aEdge, aT1, aLoc1); | |
47 | if (aPoly1.IsNull() || aT1.IsNull()) { | |
48 | #ifdef DEB | |
49 | cout<<"problem getting PolygonOnTriangulation of edge "<<ie<<endl; | |
50 | #endif | |
51 | continue; | |
52 | } | |
53 | const TColStd_Array1OfInteger& aNodes1 = aPoly1->Nodes(); | |
54 | ||
55 | // cycle on other polygons | |
56 | TopTools_ListIteratorOfListOfShape it(aFaces); | |
57 | it.Next(); | |
58 | for (; it.More(); it.Next()) { | |
59 | const TopoDS_Face& aFace2 = TopoDS::Face(it.Value()); | |
60 | TopLoc_Location aLoc2; | |
61 | Handle(Poly_Triangulation) aT2 = BRep_Tool::Triangulation(aFace2, aLoc2); | |
62 | Handle(Poly_PolygonOnTriangulation) aPoly2 = | |
63 | BRep_Tool::PolygonOnTriangulation(aEdge, aT2, aLoc2); | |
64 | if (aPoly2.IsNull() || aT2.IsNull()) { | |
65 | #ifdef DEB | |
66 | cout<<"problem getting PolygonOnTriangulation of edge "<<ie<<endl; | |
67 | #endif | |
68 | continue; | |
69 | } | |
70 | const TColStd_Array1OfInteger& aNodes2 = aPoly2->Nodes(); | |
71 | ||
72 | // check equality of polygons lengths | |
73 | if (aNodes2.Length() != aNodes1.Length()) { | |
74 | myAsyncEdges.Append(ie); | |
75 | break; | |
76 | } | |
77 | ||
78 | // check distances between corresponding points | |
79 | Standard_Real aDefle = Max(aT1->Deflection(), aT2->Deflection()); | |
80 | const TColgp_Array1OfPnt& aPoints1 = aT1->Nodes(); | |
81 | const TColgp_Array1OfPnt& aPoints2 = aT2->Nodes(); | |
82 | Standard_Integer iF1 = aMapF.FindIndex(aFace1); | |
83 | Standard_Integer iF2 = aMapF.FindIndex(aFace2); | |
84 | Standard_Integer i1 = aNodes1.Lower(); | |
85 | Standard_Integer i2 = aNodes2.Lower(); | |
86 | gp_Trsf aTrsf1 = aFace1.Location().Transformation(); | |
87 | gp_Trsf aTrsf2 = aFace2.Location().Transformation(); | |
88 | for (; i1 <= aNodes1.Upper(); i1++, i2++) { | |
89 | gp_Pnt aP1 = aPoints1(aNodes1(i1)).Transformed(aTrsf1); | |
90 | gp_Pnt aP2 = aPoints2(aNodes2(i2)).Transformed(aTrsf2); | |
91 | Standard_Real aDist = aP1.Distance(aP2); | |
92 | if (aDist > aDefle) { | |
93 | myErrors.Append(iF1); | |
94 | myErrors.Append(i1); | |
95 | myErrors.Append(iF2); | |
96 | myErrors.Append(i2); | |
97 | myErrorsVal.Append(aDist); | |
98 | } | |
99 | } | |
100 | } | |
101 | } | |
102 | ||
103 | // check triangulations | |
104 | Standard_Integer iF; | |
105 | for (iF=1; iF <= aMapF.Extent(); iF++) { | |
106 | const TopoDS_Face& aFace = TopoDS::Face(aMapF.FindKey(iF)); | |
107 | TopLoc_Location aLoc; | |
108 | Handle(Poly_Triangulation) aT = BRep_Tool::Triangulation(aFace, aLoc); | |
109 | if (aT.IsNull()) { | |
e1bcbb52 | 110 | cout<< "face "<<iF<<" has no triangulation"<<endl; |
7fd59977 | 111 | continue; |
112 | } | |
446e11f3 | 113 | |
7fd59977 | 114 | // remember boundary nodes |
446e11f3 | 115 | TColStd_PackedMapOfInteger aMapBndNodes; |
7fd59977 | 116 | TopExp_Explorer ex(aFace, TopAbs_EDGE); |
117 | for (; ex.More(); ex.Next()) { | |
118 | const TopoDS_Edge& aEdge = TopoDS::Edge(ex.Current()); | |
119 | Handle(Poly_PolygonOnTriangulation) aPoly = | |
120 | BRep_Tool::PolygonOnTriangulation(aEdge, aT, aLoc); | |
121 | if (aPoly.IsNull()) continue; | |
122 | const TColStd_Array1OfInteger& aNodes = aPoly->Nodes(); | |
123 | Standard_Integer i; | |
124 | for (i=aNodes.Lower(); i <= aNodes.Upper(); i++) | |
125 | aMapBndNodes.Add(aNodes(i)); | |
126 | } | |
127 | ||
446e11f3 A |
128 | TColStd_PackedMapOfInteger aUsedNodes; |
129 | ||
130 | // check of free links and nodes | |
7fd59977 | 131 | Poly_Connect aConn(aT); |
132 | const Poly_Array1OfTriangle& aTriangles = aT->Triangles(); | |
133 | Standard_Integer nbTri = aT->NbTriangles(), i, j, n[3], t[3]; | |
134 | for (i = 1; i <= nbTri; i++) { | |
135 | aTriangles(i).Get(n[0], n[1], n[2]); | |
446e11f3 A |
136 | |
137 | aUsedNodes.Add (n[0]); | |
138 | aUsedNodes.Add (n[1]); | |
139 | aUsedNodes.Add (n[2]); | |
140 | ||
7fd59977 | 141 | aConn.Triangles(i, t[0], t[1], t[2]); |
142 | for (j = 0; j < 3; j++) { | |
143 | if (t[j] == 0) { | |
144 | // free link found | |
145 | Standard_Integer k = (j+1) % 3; // the following node of the edge | |
146 | Standard_Integer n1 = n[j]; | |
147 | Standard_Integer n2 = n[k]; | |
148 | // skip if it is on boundary | |
149 | if (aMapBndNodes.Contains(n1) && aMapBndNodes.Contains(n2)) | |
150 | continue; | |
151 | if (!myMapFaceLinks.Contains(iF)) { | |
152 | //myMapFaceLinks.Add(iF, TColStd_SequenceOfInteger()); | |
153 | TColStd_SequenceOfInteger tmpSeq; | |
154 | myMapFaceLinks.Add(iF, tmpSeq); | |
155 | } | |
156 | TColStd_SequenceOfInteger& aSeq = myMapFaceLinks.ChangeFromKey(iF); | |
157 | aSeq.Append(n1); | |
158 | aSeq.Append(n2); | |
159 | } | |
160 | } | |
161 | } | |
446e11f3 A |
162 | |
163 | // check of free nodes | |
164 | Standard_Integer aNbNodes = aT->NbNodes(); | |
165 | for (Standard_Integer i = 1; i <= aNbNodes; i++) | |
166 | if ( ! aUsedNodes.Contains(i) ) | |
167 | { | |
168 | myFreeNodeFaces.Append (iF); | |
169 | myFreeNodeNums.Append (i); | |
170 | } | |
7fd59977 | 171 | } |
172 | } | |
173 | ||
174 | //======================================================================= | |
175 | //function : GetFreeLink | |
176 | //purpose : gets the numbers of nodes of a free link with the given index | |
177 | // in the face with the given index | |
178 | //======================================================================= | |
179 | ||
180 | void MeshTest_CheckTopology::GetFreeLink(const Standard_Integer theFaceIndex, | |
181 | const Standard_Integer theLinkIndex, | |
182 | Standard_Integer& theNode1, | |
183 | Standard_Integer& theNode2) const | |
184 | { | |
185 | const TColStd_SequenceOfInteger& aSeq = myMapFaceLinks(theFaceIndex); | |
186 | Standard_Integer aInd = (theLinkIndex-1)*2 + 1; | |
187 | theNode1 = aSeq(aInd); | |
188 | theNode2 = aSeq(aInd+1); | |
189 | } | |
190 | ||
191 | //======================================================================= | |
192 | //function : GetCrossFaceError | |
193 | //purpose : gets the attributes of a cross face error with the given index | |
194 | //======================================================================= | |
195 | ||
196 | void MeshTest_CheckTopology::GetCrossFaceError(const Standard_Integer theIndex, | |
197 | Standard_Integer& theFace1, | |
198 | Standard_Integer& theNode1, | |
199 | Standard_Integer& theFace2, | |
200 | Standard_Integer& theNode2, | |
201 | Standard_Real& theValue) const | |
202 | { | |
203 | Standard_Integer aInd = (theIndex-1)*4 + 1; | |
204 | theFace1 = myErrors(aInd); | |
205 | theNode1 = myErrors(aInd+1); | |
206 | theFace2 = myErrors(aInd+2); | |
207 | theNode2 = myErrors(aInd+3); | |
208 | theValue = myErrorsVal(theIndex); | |
209 | } |