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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
|
// File: HLRBRep_ShapeToHLR.cxx
// Created: Thu Aug 27 12:33:14 1992
// Author: Christophe MARION
// <cma@sdsun2>
#ifndef No_Exception
// #define No_Exception
#endif
#include <HLRBRep_ShapeToHLR.ixx>
#include <TopAbs.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopTools_ListOfShape.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
#include <BRepTools.hxx>
#include <BRep_Tool.hxx>
#include <HLRBRep.hxx>
#include <BRepTopAdaptor_MapOfShapeTool.hxx>
//=======================================================================
// Function : Load
// Purpose :
//=======================================================================
Handle(HLRBRep_Data)
HLRBRep_ShapeToHLR::Load(const Handle(HLRTopoBRep_OutLiner)& S,
const HLRAlgo_Projector& P,
BRepTopAdaptor_MapOfShapeTool& MST,
const Standard_Integer nbIso)
{
S->Fill(P,MST,nbIso);
HLRTopoBRep_Data& TopDS = S->DataStructure();
TopTools_IndexedMapOfShape FM;
TopTools_IndexedMapOfShape EM;
TopTools_IndexedDataMapOfShapeListOfShape VerticesToEdges;
TopTools_IndexedDataMapOfShapeListOfShape EdgesToFaces;
TopExp_Explorer exshell,exface;
for (exshell.Init(S->OutLinedShape(), TopAbs_SHELL);
exshell.More();
exshell.Next()) { // faces in a shell
for (exface.Init(exshell.Current(), TopAbs_FACE);
exface.More();
exface.Next()) {
if (!FM.Contains(exface.Current()))
FM.Add(exface.Current());
}
}
for (exface.Init(S->OutLinedShape(), TopAbs_FACE, TopAbs_SHELL);
exface.More();
exface.Next()) { // faces not in a shell
if (!FM.Contains(exface.Current()))
FM.Add(exface.Current());
}
TopExp::MapShapes(S->OutLinedShape(),TopAbs_EDGE,EM);
Standard_Integer i;
Standard_Integer nbEdge = EM.Extent ();
for (i = 1; i <= nbEdge; i++) // vertices back to edges
TopExp::MapShapesAndAncestors
(EM(i), TopAbs_VERTEX, TopAbs_EDGE, VerticesToEdges);
Standard_Integer nbVert = VerticesToEdges.Extent();
Standard_Integer nbFace = FM.Extent();
TopoDS_Vertex VF, VL;
TopTools_ListIteratorOfListOfShape itn;
Standard_Integer i1, i2;
Standard_Boolean o1, o2;
Standard_Boolean c1, c2;
Standard_Real pf, pl;
Standard_ShortReal tf, tl;
// Create the data structure
Handle(HLRBRep_Data) DS = new HLRBRep_Data (nbVert, nbEdge, nbFace);
HLRBRep_EdgeData* ed = NULL;
if(nbEdge != 0) ed = &(DS->EDataArray().ChangeValue(1));
// ed++;
for (i = 1; i <= nbFace; i++) { // test of Double edges
TopExp::MapShapesAndAncestors
(FM(i),TopAbs_EDGE, TopAbs_FACE, EdgesToFaces);
}
for (i = 1; i <= nbEdge; i++) { // load the Edges
const TopoDS_Edge& Edg = TopoDS::Edge (EM(i));
TopExp::Vertices (Edg, VF, VL);
BRep_Tool::Range (Edg, pf, pl);
Standard_Boolean reg1 = Standard_False;
Standard_Boolean regn = Standard_False;
Standard_Integer inde = EdgesToFaces.FindIndex(Edg);
if (inde > 0) {
if (EdgesToFaces(inde).Extent() == 2) {
itn = EdgesToFaces(inde);
const TopoDS_Face& F1 = TopoDS::Face(itn.Value());
itn.Next();
const TopoDS_Face& F2 = TopoDS::Face(itn.Value());
GeomAbs_Shape rg = BRep_Tool::Continuity(Edg,F1,F2);
reg1 = rg >= GeomAbs_G1;
regn = rg >= GeomAbs_G2;
}
}
if (VF.IsNull()) {
i1 = 0;
o1 = Standard_False;
c1 = Standard_False;
pf = RealFirst();
tf = (Standard_ShortReal) Epsilon(pf);
}
else {
i1 = VerticesToEdges.FindIndex(VF);
o1 = TopDS.IsOutV(VF);
c1 = TopDS.IsIntV(VF);
tf = (Standard_ShortReal) BRep_Tool::Tolerance(VF);
}
if (VL.IsNull()) {
i2 = 0;
o2 = Standard_False;
c2 = Standard_False;
pl = RealLast();
tl = (Standard_ShortReal) Epsilon (pl);
}
else {
i2 = VerticesToEdges.FindIndex(VL);
o2 = TopDS.IsOutV(VL);
c2 = TopDS.IsIntV(VL);
tl = (Standard_ShortReal) BRep_Tool::Tolerance(VL);
}
ed->Set (reg1,regn, Edg, i1, i2, o1, o2, c1, c2, pf, tf, pl, tl);
DS->EdgeMap().Add(Edg);
ed++;
}
ExploreShape(S,DS,FM,EM);
return DS;
}
//=======================================================================
// Function : ExploreFace
// Purpose :
//=======================================================================
void
HLRBRep_ShapeToHLR::ExploreFace(const Handle(HLRTopoBRep_OutLiner)& S,
const Handle(HLRBRep_Data)& DS,
const TopTools_IndexedMapOfShape& FM,
const TopTools_IndexedMapOfShape& EM,
Standard_Integer& i,
const TopoDS_Face& F,
const Standard_Boolean closed)
{
i++;
TopExp_Explorer Ex1,Ex2;
HLRTopoBRep_Data& TopDS = S->DataStructure();
TopAbs_Orientation orient = FM(i).Orientation();
TopoDS_Face theFace = TopoDS::Face(FM(i));
theFace.Orientation (TopAbs_FORWARD);
HLRBRep_FaceData& fd = DS->FDataArray().ChangeValue(i);
Standard_Integer nw = 0;
for (Ex1.Init(theFace, TopAbs_WIRE); Ex1.More(); Ex1.Next())
nw++;
fd.Set (theFace, orient, closed, nw);
nw = 0;
for (Ex1.Init(theFace, TopAbs_WIRE); Ex1.More(); Ex1.Next()) {
nw++;
Standard_Integer ne = 0;
for (Ex2.Init(Ex1.Current(), TopAbs_EDGE); Ex2.More(); Ex2.Next())
ne++;
fd.SetWire (nw, ne);
ne = 0;
for (Ex2.Init(Ex1.Current(), TopAbs_EDGE);
Ex2.More();
Ex2.Next()) {
ne++;
const TopoDS_Edge& E = TopoDS::Edge(Ex2.Current());
Standard_Integer ie = EM.FindIndex(E);
TopAbs_Orientation orient = E.Orientation();
Standard_Boolean Int = TopDS.IsIntLFaceEdge(F,E);
Standard_Boolean Iso = TopDS.IsIsoLFaceEdge(F,E);
Standard_Boolean Out = TopDS.IsOutLFaceEdge(F,E);
Standard_Boolean Dbl = BRepTools::IsReallyClosed(TopoDS::Edge(E),theFace);
fd.SetWEdge(nw, ne, ie, orient, Out, Int, Dbl, Iso);
}
}
DS->FaceMap().Add(theFace);
}
//=======================================================================
//function : ExploreShape
//purpose :
//=======================================================================
void
HLRBRep_ShapeToHLR::ExploreShape (const Handle(HLRTopoBRep_OutLiner)& S,
const Handle(HLRBRep_Data)& DS,
const TopTools_IndexedMapOfShape& FM,
const TopTools_IndexedMapOfShape& EM)
{
TopTools_MapOfShape ShapeMap;
TopExp_Explorer exshell, exface, exedge;
Standard_Integer i = 0;
for (exshell.Init (S->OriginalShape(), TopAbs_SHELL);
exshell.More ();
exshell.Next ()) { // faces in a shell (open or close)
Standard_Boolean closed = exshell.Current().Closed();
if (!closed) {
Standard_Integer ie;
Standard_Integer nbEdge = EM.Extent ();
Standard_Integer *flag = new Standard_Integer[nbEdge + 1];
for(ie = 1; ie<=nbEdge; ie++)
flag[ie] = 0;
for (exedge.Init(exshell.Current(), TopAbs_EDGE);
exedge.More();
exedge.Next()) {
const TopoDS_Edge& E = TopoDS::Edge(exedge.Current());
ie = EM.FindIndex(E);
TopAbs_Orientation orient = E.Orientation();
if (!BRep_Tool::Degenerated(E)) {
if (orient == TopAbs_FORWARD ) flag[ie] += 1;
else if (orient == TopAbs_REVERSED) flag[ie] -= 1;
}
}
closed = Standard_True;
for (ie = 1; ie <= nbEdge && closed; ie++)
closed = (flag[ie] == 0);
delete [] flag;
flag = NULL;
}
for (exface.Init(exshell.Current(), TopAbs_FACE);
exface.More();
exface.Next()) {
if (ShapeMap.Add(exface.Current())) {
ExploreFace(S,DS,FM,EM,i,
TopoDS::Face(exface.Current()),
closed);
}
}
}
for (exface.Init(S->OriginalShape(), TopAbs_FACE, TopAbs_SHELL);
exface.More();
exface.Next()) { // faces not in a shell
if (ShapeMap.Add(exface.Current())) {
ExploreFace(S,DS,FM,EM,i,
TopoDS::Face(exface.Current()),
Standard_False);
}
}
}
|
