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1 | // Created by: Peter KURNEV |
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2 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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3 | // |
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4 | // This file is part of Open CASCADE Technology software library. |
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5 | // |
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6 | // This library is free software; you can redistribute it and/or modify it under |
7 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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8 | // by the Free Software Foundation, with special exception defined in the file |
9 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
10 | // distribution for complete text of the license and disclaimer of any warranty. |
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11 | // |
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12 | // Alternatively, this file may be used under the terms of Open CASCADE |
13 | // commercial license or contractual agreement. |
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14 | |
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15 | #include <BOPAlgo_WireEdgeSet.hxx> |
16 | #include <BOPAlgo_WireSplitter.hxx> |
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17 | #include <BOPCol_IndexedDataMapOfShapeInteger.hxx> |
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18 | #include <BOPCol_IndexedDataMapOfShapeListOfShape.hxx> |
19 | #include <BOPCol_ListOfShape.hxx> |
20 | #include <BOPCol_MapOfShape.hxx> |
21 | #include <BOPCol_SequenceOfPnt2d.hxx> |
22 | #include <BOPCol_SequenceOfReal.hxx> |
23 | #include <BOPCol_SequenceOfShape.hxx> |
24 | #include <BOPTools_AlgoTools2D.hxx> |
25 | #include <BRep_Builder.hxx> |
26 | #include <BRep_Tool.hxx> |
27 | #include <BRepAdaptor_Surface.hxx> |
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28 | #include <Geom2d_Curve.hxx> |
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29 | #include <Geom2d_Line.hxx> |
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30 | #include <Geom2dAdaptor_Curve.hxx> |
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31 | #include <Geom2dInt_GInter.hxx> |
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32 | #include <Geom_Plane.hxx> |
33 | #include <Geom_RectangularTrimmedSurface.hxx> |
34 | #include <Geom_Surface.hxx> |
35 | #include <GeomAdaptor_Surface.hxx> |
36 | #include <gp_Dir2d.hxx> |
37 | #include <gp_Pnt2d.hxx> |
38 | #include <gp_Vec2d.hxx> |
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39 | #include <IntRes2d_Domain.hxx> |
40 | #include <IntRes2d_IntersectionPoint.hxx> |
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41 | #include <Precision.hxx> |
42 | #include <TopExp.hxx> |
43 | #include <TopExp_Explorer.hxx> |
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44 | #include <TopLoc_Location.hxx> |
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45 | #include <TopoDS.hxx> |
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46 | #include <TopoDS_Edge.hxx> |
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47 | #include <TopoDS_Face.hxx> |
48 | #include <TopoDS_Iterator.hxx> |
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49 | #include <TopoDS_Vertex.hxx> |
50 | #include <TopoDS_Wire.hxx> |
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51 | #include <TopTools_ShapeMapHasher.hxx> |
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52 | #include <Geom2dLProp_CLProps2d.hxx> |
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53 | typedef NCollection_DataMap \ |
54 | <TopoDS_Shape, Standard_Boolean, TopTools_ShapeMapHasher> \ |
55 | BOPCol_DataMapOfShapeBoolean; |
56 | // |
57 | |
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58 | static |
59 | Standard_Real Angle (const gp_Dir2d& aDir2D); |
60 | |
61 | static |
62 | Standard_Real Angle2D (const TopoDS_Vertex& aV, |
63 | const TopoDS_Edge& anEdge, |
64 | const TopoDS_Face& myFace, |
65 | const GeomAdaptor_Surface& aGAS, |
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66 | const Standard_Boolean aFlag, |
67 | const Handle(IntTools_Context)& theContext); |
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68 | |
69 | static |
70 | void GetNextVertex(const TopoDS_Vertex& aV, |
71 | const TopoDS_Edge& aE, |
72 | TopoDS_Vertex& aV1); |
73 | |
74 | static |
75 | Standard_Real AngleIn(const TopoDS_Edge& aEIn, |
76 | const BOPAlgo_ListOfEdgeInfo& aLEInfo); |
77 | |
78 | static |
79 | Standard_Integer NbWaysOut(const BOPAlgo_ListOfEdgeInfo& aLEInfo); |
80 | |
81 | static |
82 | gp_Pnt2d Coord2dVf (const TopoDS_Edge& aE, |
83 | const TopoDS_Face& aF); |
84 | |
85 | static |
86 | gp_Pnt2d Coord2d (const TopoDS_Vertex& aV1, |
87 | const TopoDS_Edge& aE1, |
88 | const TopoDS_Face& aF); |
89 | |
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90 | static |
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91 | Standard_Real ClockWiseAngle(const Standard_Real aAngleIn, |
92 | const Standard_Real aAngleOut); |
93 | |
94 | static |
95 | void Path (const GeomAdaptor_Surface& aGAS, |
96 | const TopoDS_Face& myFace, |
97 | const TopoDS_Vertex& aVa, |
98 | const TopoDS_Edge& aEOuta, |
99 | BOPAlgo_EdgeInfo& anEdgeInfo, |
100 | BOPCol_SequenceOfShape& aLS, |
101 | BOPCol_SequenceOfShape& aVertVa, |
102 | BOPCol_SequenceOfPnt2d& aCoordVa, |
103 | BOPTools_ConnexityBlock& aCB, |
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104 | BOPAlgo_IndexedDataMapOfShapeListOfEdgeInfo& mySmartMap, |
105 | BOPCol_DataMapOfShapeBoolean aVertMap); |
106 | |
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107 | static |
108 | Standard_Real Angle (const gp_Dir2d& aDir2D); |
109 | |
110 | static |
111 | Standard_Real Tolerance2D (const TopoDS_Vertex& aV, |
112 | const GeomAdaptor_Surface& aGAS); |
113 | |
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114 | |
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115 | |
116 | static |
117 | Standard_Real UTolerance2D (const TopoDS_Vertex& aV, |
118 | const GeomAdaptor_Surface& aGAS); |
119 | static |
120 | Standard_Real VTolerance2D (const TopoDS_Vertex& aV, |
121 | const GeomAdaptor_Surface& aGAS); |
122 | |
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123 | static |
124 | void RefineAngles(const TopoDS_Face& myFace, |
125 | const BOPCol_ListOfShape&, |
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126 | BOPAlgo_IndexedDataMapOfShapeListOfEdgeInfo&, |
127 | const Handle(IntTools_Context)&); |
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128 | |
129 | |
130 | static |
131 | void RefineAngles(const TopoDS_Vertex& , |
132 | const TopoDS_Face& , |
133 | const BOPCol_MapOfShape& , |
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134 | BOPAlgo_ListOfEdgeInfo&, |
135 | const Handle(IntTools_Context)&); |
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136 | |
137 | static |
138 | Standard_Boolean RefineAngle2D(const TopoDS_Vertex& , |
139 | const TopoDS_Edge& , |
140 | const TopoDS_Face& , |
141 | const Standard_Real , |
142 | const Standard_Real , |
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143 | const Standard_Real, |
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144 | Standard_Real& , |
145 | const Handle(IntTools_Context)& ); |
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146 | |
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147 | //======================================================================= |
148 | //function : SplitBlock |
149 | //purpose : |
150 | //======================================================================= |
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151 | void BOPAlgo_WireSplitter::SplitBlock(const TopoDS_Face& myFace, |
51db0179 |
152 | BOPTools_ConnexityBlock& aCB, |
153 | const Handle(IntTools_Context)& theContext) |
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154 | { |
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155 | Standard_Boolean bNothingToDo, bIsClosed, bIsIN; |
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156 | Standard_Integer aIx, aNb, i, aCntIn, aCntOut; |
157 | Standard_Real aAngle; |
158 | TopAbs_Orientation aOr; |
159 | TopoDS_Iterator aItS; |
160 | TopoDS_Vertex aVV; |
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161 | TopoDS_Shape aV1; |
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162 | BOPCol_ListIteratorOfListOfShape aIt; |
163 | BOPAlgo_ListIteratorOfListOfEdgeInfo aItLEI; |
164 | // |
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165 | BOPAlgo_IndexedDataMapOfShapeListOfEdgeInfo mySmartMap(100); |
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166 | BOPCol_DataMapOfShapeBoolean aVertMap; |
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167 | // |
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168 | const BOPCol_ListOfShape& myEdges=aCB.Shapes(); |
169 | // |
170 | // 1.Filling mySmartMap |
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171 | aIt.Initialize(myEdges); |
172 | for(; aIt.More(); aIt.Next()) { |
173 | const TopoDS_Edge& aE=(*(TopoDS_Edge *)&aIt.Value()); |
174 | if (!BOPTools_AlgoTools2D::HasCurveOnSurface (aE, myFace)) { |
175 | continue; |
176 | } |
177 | // |
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178 | bIsClosed = BRep_Tool::Degenerated(aE) || |
179 | BRep_Tool::IsClosed(aE, myFace); |
180 | // |
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181 | aItS.Initialize(aE); |
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182 | for(i = 0; aItS.More(); aItS.Next(), ++i) { |
183 | const TopoDS_Shape& aV = aItS.Value(); |
184 | aIx = mySmartMap.FindIndex(aV); |
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185 | if (!aIx) { |
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186 | BOPAlgo_ListOfEdgeInfo aLEIx; |
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187 | aIx = mySmartMap.Add(aV, aLEIx); |
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188 | } |
189 | // |
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190 | BOPAlgo_ListOfEdgeInfo& aLEI = mySmartMap(aIx); |
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191 | BOPAlgo_EdgeInfo aEI; |
192 | // |
193 | aEI.SetEdge(aE); |
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194 | aOr = aV.Orientation(); |
195 | bIsIN = (aOr == TopAbs_REVERSED); |
196 | aEI.SetInFlag(bIsIN); |
197 | aLEI.Append(aEI); |
198 | // |
199 | if (!i) { |
200 | aV1 = aV; |
201 | } else { |
202 | bIsClosed = bIsClosed || aV1.IsSame(aV); |
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203 | } |
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204 | // |
205 | if (aVertMap.IsBound(aV)) { |
206 | if (bIsClosed) { |
207 | aVertMap.ChangeFind(aV) = bIsClosed; |
208 | } |
209 | } else { |
210 | aVertMap.Bind(aV, bIsClosed); |
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211 | } |
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212 | } |
213 | } |
214 | // |
215 | aNb=mySmartMap.Extent(); |
216 | // |
217 | bNothingToDo=Standard_True; |
218 | for (i=1; i<=aNb; i++) { |
219 | aCntIn=0; |
220 | aCntOut=0; |
221 | const BOPAlgo_ListOfEdgeInfo& aLEInfo= mySmartMap(i); |
222 | BOPAlgo_ListIteratorOfListOfEdgeInfo anIt(aLEInfo); |
223 | for (; anIt.More(); anIt.Next()) { |
224 | const BOPAlgo_EdgeInfo& aEI=anIt.Value(); |
225 | if (aEI.IsIn()) { |
226 | aCntIn++; |
227 | } |
228 | else { |
229 | aCntOut++; |
230 | } |
231 | } |
232 | if (aCntIn!=1 || aCntOut!=1) { |
233 | bNothingToDo=Standard_False; |
234 | break; |
235 | } |
236 | } |
237 | // |
238 | // Each vertex has one edge In and one - Out. Good. But it is not enought |
239 | // to consider that nothing to do with this. We must check edges on TShape |
240 | // coinsidence. If there are such edges there is something to do with. |
241 | if (bNothingToDo) { |
242 | Standard_Integer aNbE, aNbMapEE; |
243 | Standard_Boolean bFlag; |
244 | // |
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245 | BOPCol_IndexedDataMapOfShapeListOfShape aMapEE(100); |
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246 | aNbE=myEdges.Extent(); |
247 | // |
248 | aIt.Initialize(myEdges); |
249 | for (; aIt.More(); aIt.Next()) { |
250 | const TopoDS_Shape& aE = aIt.Value(); |
251 | if (!aMapEE.Contains(aE)) { |
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252 | BOPCol_ListOfShape aLEx; |
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253 | aLEx.Append(aE); |
254 | aMapEE.Add(aE, aLEx); |
255 | } |
256 | else { |
257 | BOPCol_ListOfShape& aLEx=aMapEE.ChangeFromKey(aE); |
258 | aLEx.Append(aE); |
259 | } |
260 | } |
261 | // |
262 | bFlag=Standard_True; |
263 | aNbMapEE=aMapEE.Extent(); |
264 | for (i=1; i<=aNbMapEE; ++i) { |
265 | const BOPCol_ListOfShape& aLEx=aMapEE(i); |
266 | aNbE=aLEx.Extent(); |
267 | if (aNbE==1) {// usual case |
268 | continue; |
269 | } |
270 | else if (aNbE==2){ |
271 | const TopoDS_Shape& aE1=aLEx.First(); |
272 | const TopoDS_Shape& aE2=aLEx.Last(); |
273 | if (aE1.IsSame(aE2)) { |
274 | bFlag=Standard_False; |
275 | break; |
276 | } |
277 | } |
278 | else { |
279 | bFlag=Standard_False; |
280 | break; |
281 | } |
282 | } |
283 | bNothingToDo=bNothingToDo && bFlag; |
284 | } // if (bNothingToDo) { |
285 | if (bNothingToDo) { |
286 | TopoDS_Wire aW; |
287 | // |
288 | BOPCol_ListOfShape& aLECB=aCB.ChangeShapes(); |
289 | BOPAlgo_WireSplitter::MakeWire(aLECB, aW); |
290 | BOPCol_ListOfShape& aLoops=aCB.ChangeLoops(); |
291 | aLoops.Append(aW); |
292 | // |
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293 | return; |
294 | } |
295 | // |
296 | // 3. Angles in mySmartMap |
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297 | const BRepAdaptor_Surface& aBAS = theContext->SurfaceAdaptor(myFace); |
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298 | const GeomAdaptor_Surface& aGAS=aBAS.Surface(); |
299 | // |
300 | for (i=1; i<=aNb; i++) { |
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301 | const TopoDS_Vertex& aV = (*(TopoDS_Vertex *)(&mySmartMap.FindKey(i))); |
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302 | const BOPAlgo_ListOfEdgeInfo& aLEI= mySmartMap(i); |
4e57c75e |
303 | aItLEI.Initialize(aLEI); |
304 | for (; aItLEI.More(); aItLEI.Next()) { |
305 | BOPAlgo_EdgeInfo& aEI=aItLEI.ChangeValue(); |
306 | const TopoDS_Edge& aE=aEI.Edge(); |
307 | // |
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308 | aVV = aV; |
309 | bIsIN = aEI.IsIn(); |
310 | aOr = bIsIN ? TopAbs_REVERSED : TopAbs_FORWARD; |
311 | aVV.Orientation(aOr); |
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312 | aAngle = Angle2D(aVV, aE, myFace, aGAS, bIsIN, theContext); |
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313 | aEI.SetAngle(aAngle); |
314 | } |
315 | }// for (i=1; i<=aNb; i++) { |
316 | // |
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317 | //Theme: The treatment p-curves convergent in node. |
318 | //The refining the angles of p-curves taking into account |
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319 | //bounding curves if exist. |
320 | RefineAngles(myFace, myEdges, mySmartMap, theContext); |
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321 | // |
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322 | // 4. Do |
323 | // |
324 | Standard_Boolean bIsOut, bIsNotPassed; |
325 | BOPCol_SequenceOfShape aLS, aVertVa; |
326 | BOPCol_SequenceOfPnt2d aCoordVa; |
327 | // |
328 | for (i=1; i<=aNb; ++i) { |
329 | const TopoDS_Vertex& aVa=(*(TopoDS_Vertex *)(&mySmartMap.FindKey(i))); |
330 | const BOPAlgo_ListOfEdgeInfo& aLEI=mySmartMap(i); |
331 | aItLEI.Initialize(aLEI); |
332 | for (; aItLEI.More(); aItLEI.Next()) { |
333 | BOPAlgo_EdgeInfo& aEI=aItLEI.ChangeValue(); |
334 | const TopoDS_Edge& aEOuta=aEI.Edge(); |
335 | // |
336 | bIsOut=!aEI.IsIn(); |
337 | bIsNotPassed=!aEI.Passed(); |
338 | if (bIsOut && bIsNotPassed) { |
339 | // |
340 | aLS.Clear(); |
341 | aVertVa.Clear(); |
342 | aCoordVa.Clear(); |
343 | // |
344 | Path(aGAS, myFace, aVa, aEOuta, aEI, aLS, |
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345 | aVertVa, aCoordVa, aCB, mySmartMap, aVertMap); |
4e57c75e |
346 | } |
347 | } |
348 | }// for (i=1; i<=aNb; ++i) { |
349 | } |
350 | //======================================================================= |
351 | // function: Path |
352 | // purpose: |
353 | //======================================================================= |
354 | void Path (const GeomAdaptor_Surface& aGAS, |
355 | const TopoDS_Face& myFace, |
b7357c8b |
356 | const TopoDS_Vertex& aVFirst, |
357 | const TopoDS_Edge& aEFirst, |
358 | BOPAlgo_EdgeInfo& aEIFirst, |
4e57c75e |
359 | BOPCol_SequenceOfShape& aLS, |
360 | BOPCol_SequenceOfShape& aVertVa, |
361 | BOPCol_SequenceOfPnt2d& aCoordVa, |
362 | BOPTools_ConnexityBlock& aCB, |
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363 | BOPAlgo_IndexedDataMapOfShapeListOfEdgeInfo& mySmartMap, |
364 | BOPCol_DataMapOfShapeBoolean aVertMap) |
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365 | |
366 | { |
367 | Standard_Integer i, j, aNb, aNbj; |
ecba6de3 |
368 | Standard_Real anAngleIn, anAngleOut, anAngle, aMinAngle; |
369 | Standard_Real aTol2D, aTol2D2, aD2, aTwoPI; |
4e57c75e |
370 | Standard_Boolean anIsSameV2d, anIsSameV, anIsFound, anIsOut, anIsNotPassed; |
f56518cd |
371 | Standard_Boolean bIsClosed; |
b7357c8b |
372 | TopoDS_Vertex aVa, aVb; |
373 | TopoDS_Edge aEOuta; |
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374 | BOPAlgo_ListIteratorOfListOfEdgeInfo anIt; |
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375 | Standard_Real eps = Epsilon(1.); |
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376 | // |
b7357c8b |
377 | aVa = aVFirst; |
378 | aEOuta = aEFirst; |
379 | BOPAlgo_EdgeInfo* anEdgeInfo = &aEIFirst; |
380 | // |
b20eeb13 |
381 | aTwoPI = M_PI + M_PI; |
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382 | // |
383 | // append block |
384 | // |
b7357c8b |
385 | for (;;) { |
386 | // Do not escape through edge from which you enter |
387 | aNb=aLS.Length(); |
388 | if (aNb==1) { |
389 | const TopoDS_Shape& anEPrev=aLS(aNb); |
390 | if (anEPrev.IsSame(aEOuta)) { |
391 | return; |
392 | } |
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393 | } |
4e57c75e |
394 | // |
b7357c8b |
395 | anEdgeInfo->SetPassed(Standard_True); |
396 | aLS.Append(aEOuta); |
397 | aVertVa.Append(aVa); |
398 | |
399 | TopoDS_Vertex pVa=aVa; |
400 | pVa.Orientation(TopAbs_FORWARD); |
401 | gp_Pnt2d aPa=Coord2d(pVa, aEOuta, myFace); |
402 | aCoordVa.Append(aPa); |
403 | |
404 | GetNextVertex (pVa, aEOuta, aVb); |
405 | |
406 | gp_Pnt2d aPb=Coord2d(aVb, aEOuta, myFace); |
407 | |
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408 | const BOPAlgo_ListOfEdgeInfo& aLEInfo=mySmartMap.FindFromKey(aVb); |
4e57c75e |
409 | // |
ecba6de3 |
410 | aTol2D = 2.*Tolerance2D(aVb, aGAS); |
411 | aTol2D2 = aTol2D * aTol2D; |
412 | // |
f56518cd |
413 | bIsClosed = aVertMap.Find(aVb); |
24542bc0 |
414 | { |
b7357c8b |
415 | BOPCol_ListOfShape aBuf; |
f80842e3 |
416 | Standard_Boolean bHasEdge = Standard_False; |
b7357c8b |
417 | // |
24542bc0 |
418 | aNb = aLS.Length(); |
419 | for (i = aNb; i>0; --i) { |
b7357c8b |
420 | const TopoDS_Shape& aVPrev=aVertVa(i); |
421 | const gp_Pnt2d& aPaPrev=aCoordVa(i); |
f80842e3 |
422 | const TopoDS_Edge& aEPrev = TopoDS::Edge(aLS(i)); |
423 | // |
b7357c8b |
424 | aBuf.Append(aEPrev); |
f80842e3 |
425 | if (!bHasEdge) { |
426 | bHasEdge = !BRep_Tool::Degenerated(aEPrev); |
427 | // do not create wire from degenerated edges only |
428 | if (!bHasEdge) { |
429 | continue; |
430 | } |
431 | } |
432 | // |
ecba6de3 |
433 | anIsSameV = aVPrev.IsSame(aVb); |
434 | anIsSameV2d = anIsSameV; |
b7357c8b |
435 | if (anIsSameV) { |
ecba6de3 |
436 | if(bIsClosed) { |
437 | aD2 = aPaPrev.SquareDistance(aPb); |
438 | anIsSameV2d = aD2 < aTol2D2; |
439 | if (anIsSameV2d) { |
440 | Standard_Real udist = fabs(aPaPrev.X() - aPb.X()); |
441 | Standard_Real vdist = fabs(aPaPrev.Y() - aPb.Y()); |
442 | Standard_Real aTolU = 2.*UTolerance2D(aVb, aGAS); |
443 | Standard_Real aTolV = 2.*VTolerance2D(aVb, aGAS); |
444 | // |
445 | if((udist > aTolU) || (vdist > aTolV)) { |
446 | anIsSameV2d = Standard_False; |
447 | } |
b7357c8b |
448 | } |
449 | } |
450 | }//if (anIsSameV) { |
4e57c75e |
451 | // |
b7357c8b |
452 | if (anIsSameV && anIsSameV2d) { |
453 | Standard_Integer iPriz; |
454 | iPriz=1; |
455 | if (aBuf.Extent()==2) { |
456 | if(aBuf.First().IsSame(aBuf.Last())) { |
457 | iPriz=0; |
458 | } |
459 | } |
460 | if (iPriz) { |
461 | TopoDS_Wire aW; |
462 | BOPAlgo_WireSplitter::MakeWire(aBuf, aW); |
463 | aCB.ChangeLoops().Append(aW); |
464 | } |
4e57c75e |
465 | // |
b7357c8b |
466 | aNbj=i-1; |
467 | if (aNbj<1) { |
468 | // |
469 | aLS.Clear(); |
470 | aVertVa.Clear(); |
471 | aCoordVa.Clear(); |
472 | // |
473 | return; |
4e57c75e |
474 | } |
b7357c8b |
475 | // |
476 | BOPCol_SequenceOfShape aLSt, aVertVat; |
477 | BOPCol_SequenceOfPnt2d aCoordVat; |
478 | // |
479 | aVb=(*(TopoDS_Vertex *)(&aVertVa(i))); |
480 | // |
481 | for (j=1; j<=aNbj; ++j) { |
482 | aLSt.Append(aLS(j)); |
483 | aVertVat.Append(aVertVa(j)); |
484 | aCoordVat.Append(aCoordVa(j)); |
4e57c75e |
485 | } |
4e57c75e |
486 | // |
487 | aLS.Clear(); |
488 | aVertVa.Clear(); |
489 | aCoordVa.Clear(); |
b7357c8b |
490 | |
491 | aLS=aLSt; |
492 | aVertVa=aVertVat; |
493 | aCoordVa=aCoordVat; |
4e57c75e |
494 | // |
b7357c8b |
495 | break; |
4e57c75e |
496 | } |
4e57c75e |
497 | } |
498 | } |
b7357c8b |
499 | // |
b7357c8b |
500 | // aEOutb |
501 | BOPAlgo_EdgeInfo *pEdgeInfo=NULL; |
502 | // |
ecba6de3 |
503 | anAngleIn = AngleIn(aEOuta, aLEInfo); |
504 | aMinAngle = 100.; |
505 | anIsFound = Standard_False; |
24542bc0 |
506 | Standard_Integer iCnt = NbWaysOut(aLEInfo); |
b7357c8b |
507 | Standard_Integer aCurIndexE = 0; |
508 | anIt.Initialize(aLEInfo); |
509 | for (; anIt.More(); anIt.Next()) { |
510 | BOPAlgo_EdgeInfo& anEI=anIt.ChangeValue(); |
511 | const TopoDS_Edge& aE=anEI.Edge(); |
512 | anIsOut=!anEI.IsIn(); |
513 | anIsNotPassed=!anEI.Passed(); |
f56518cd |
514 | // |
b7357c8b |
515 | if (anIsOut && anIsNotPassed) { |
516 | aCurIndexE++; |
b20eeb13 |
517 | // |
b7357c8b |
518 | // Is there one way to go out of the vertex |
519 | // we have to use it only. |
b20eeb13 |
520 | // |
b7357c8b |
521 | if (!iCnt) { |
522 | // no way to go . (Error) |
523 | return; |
4e57c75e |
524 | } |
b20eeb13 |
525 | // |
b7357c8b |
526 | if (iCnt==1) { |
527 | // the one and only way to go out . |
528 | pEdgeInfo=&anEI; |
529 | anIsFound=Standard_True; |
530 | break; |
531 | } |
b20eeb13 |
532 | // |
b7357c8b |
533 | if (aE.IsSame(aEOuta)) { |
534 | anAngle = aTwoPI; |
535 | } else { |
ecba6de3 |
536 | //check 2d distance |
537 | if (bIsClosed) { |
538 | gp_Pnt2d aP2Dx; |
539 | // |
540 | aP2Dx = Coord2dVf(aE, myFace); |
541 | // |
542 | aD2 = aP2Dx.SquareDistance(aPb); |
543 | if (aD2 > aTol2D2){ |
544 | continue; |
545 | } |
b20eeb13 |
546 | } |
b7357c8b |
547 | // |
ecba6de3 |
548 | // Look for minimal angle and make the choice. |
b7357c8b |
549 | anAngleOut=anEI.Angle(); |
b7357c8b |
550 | anAngle=ClockWiseAngle(anAngleIn, anAngleOut); |
551 | } |
3ba87fdb |
552 | if (anAngle < aMinAngle - eps) { |
b7357c8b |
553 | aMinAngle=anAngle; |
554 | pEdgeInfo=&anEI; |
555 | anIsFound=Standard_True; |
b20eeb13 |
556 | } |
4e57c75e |
557 | } |
b7357c8b |
558 | } // for (; anIt.More(); anIt.Next()) |
559 | // |
560 | if (!anIsFound) { |
561 | // no way to go . (Error) |
562 | return; |
4e57c75e |
563 | } |
b7357c8b |
564 | // |
565 | aVa = aVb; |
566 | aEOuta = pEdgeInfo->Edge(); |
567 | anEdgeInfo = pEdgeInfo; |
4e57c75e |
568 | } |
4e57c75e |
569 | } |
570 | //======================================================================= |
571 | // function: ClockWiseAngle |
572 | // purpose: |
573 | //======================================================================= |
574 | Standard_Real ClockWiseAngle(const Standard_Real aAngleIn, |
575 | const Standard_Real aAngleOut) |
576 | { |
577 | Standard_Real aTwoPi=M_PI+M_PI; |
578 | Standard_Real dA, A1, A2, AIn, AOut ; |
579 | |
580 | AIn=aAngleIn; |
581 | AOut=aAngleOut; |
582 | if (AIn >= aTwoPi) { |
583 | AIn=AIn-aTwoPi; |
584 | } |
585 | |
586 | if (AOut >= aTwoPi) { |
587 | AOut=AOut-aTwoPi; |
588 | } |
589 | |
590 | A1=AIn+M_PI; |
591 | |
592 | if (A1 >= aTwoPi) { |
593 | A1=A1-aTwoPi; |
594 | } |
595 | |
596 | A2=AOut; |
597 | |
598 | dA=A1-A2; |
599 | if (dA <= 0.) { |
600 | dA=aTwoPi+dA; |
601 | } |
602 | //xx |
603 | //else if (dA <= 1.e-15) { |
604 | else if (dA <= 1.e-14) { |
605 | dA=aTwoPi; |
606 | } |
607 | return dA; |
608 | } |
609 | //======================================================================= |
610 | // function: Coord2d |
611 | // purpose: |
612 | //======================================================================= |
613 | gp_Pnt2d Coord2d (const TopoDS_Vertex& aV1, |
614 | const TopoDS_Edge& aE1, |
615 | const TopoDS_Face& aF) |
616 | { |
617 | Standard_Real aT, aFirst, aLast; |
618 | Handle(Geom2d_Curve) aC2D; |
619 | gp_Pnt2d aP2D1; |
620 | // |
621 | aT=BRep_Tool::Parameter (aV1, aE1, aF); |
622 | aC2D=BRep_Tool::CurveOnSurface(aE1, aF, aFirst, aLast); |
623 | aC2D->D0 (aT, aP2D1); |
624 | // |
625 | return aP2D1; |
626 | } |
627 | //======================================================================= |
628 | // function: Coord2dVf |
629 | // purpose: |
630 | //======================================================================= |
631 | gp_Pnt2d Coord2dVf (const TopoDS_Edge& aE, |
632 | const TopoDS_Face& aF) |
633 | { |
634 | Standard_Real aCoord=99.; |
635 | gp_Pnt2d aP2D1(aCoord, aCoord); |
636 | TopoDS_Iterator aIt; |
637 | // |
638 | aIt.Initialize(aE); |
639 | for (; aIt.More(); aIt.Next()) { |
640 | const TopoDS_Shape& aVx=aIt.Value(); |
641 | if (aVx.Orientation()==TopAbs_FORWARD) { |
642 | |
643 | const TopoDS_Vertex& aVxx=(*(TopoDS_Vertex *)(&aVx));// TopoDS::Vertex(aVx); |
644 | aP2D1=Coord2d(aVxx, aE, aF); |
645 | return aP2D1; |
646 | } |
647 | } |
648 | return aP2D1; |
649 | } |
650 | |
651 | //======================================================================= |
652 | // function: NbWaysOut |
653 | // purpose: |
654 | //======================================================================= |
655 | Standard_Integer NbWaysOut(const BOPAlgo_ListOfEdgeInfo& aLEInfo) |
656 | { |
657 | Standard_Boolean bIsOut, bIsNotPassed; |
658 | Standard_Integer iCnt=0; |
659 | BOPAlgo_ListIteratorOfListOfEdgeInfo anIt; |
660 | // |
661 | anIt.Initialize(aLEInfo); |
662 | for (; anIt.More(); anIt.Next()) { |
663 | const BOPAlgo_EdgeInfo& anEI=anIt.Value(); |
664 | // |
665 | bIsOut=!anEI.IsIn(); |
666 | bIsNotPassed=!anEI.Passed(); |
667 | if (bIsOut && bIsNotPassed) { |
668 | iCnt++; |
669 | } |
670 | } |
671 | return iCnt; |
672 | } |
673 | |
674 | //======================================================================= |
675 | // function: AngleIn |
676 | // purpose: |
677 | //======================================================================= |
678 | Standard_Real AngleIn(const TopoDS_Edge& aEIn, |
679 | const BOPAlgo_ListOfEdgeInfo& aLEInfo) |
680 | { |
681 | Standard_Real anAngleIn; |
682 | Standard_Boolean anIsIn; |
683 | BOPAlgo_ListIteratorOfListOfEdgeInfo anIt; |
684 | |
685 | anIt.Initialize(aLEInfo); |
686 | for (; anIt.More(); anIt.Next()) { |
687 | const BOPAlgo_EdgeInfo& anEdgeInfo=anIt.Value(); |
688 | const TopoDS_Edge& aE=anEdgeInfo.Edge(); |
689 | anIsIn=anEdgeInfo.IsIn(); |
690 | // |
691 | if (anIsIn && aE==aEIn) { |
692 | anAngleIn=anEdgeInfo.Angle(); |
693 | return anAngleIn; |
694 | } |
695 | } |
696 | anAngleIn=0.; |
697 | return anAngleIn; |
698 | } |
699 | //======================================================================= |
700 | // function: GetNextVertex |
701 | // purpose: |
702 | //======================================================================= |
703 | void GetNextVertex(const TopoDS_Vertex& aV, |
704 | const TopoDS_Edge& aE, |
705 | TopoDS_Vertex& aV1) |
706 | { |
707 | TopoDS_Iterator aIt; |
708 | // |
709 | aIt.Initialize(aE); |
710 | for (; aIt.More(); aIt.Next()) { |
711 | const TopoDS_Shape& aVx=aIt.Value(); |
712 | if (!aVx.IsEqual(aV)) { |
713 | aV1=(*(TopoDS_Vertex *)(&aVx)); |
714 | return ; |
715 | } |
716 | } |
717 | aV1=aV; |
718 | } |
719 | //======================================================================= |
720 | // function: Angle2D |
721 | // purpose: |
722 | //======================================================================= |
723 | Standard_Real Angle2D (const TopoDS_Vertex& aV, |
724 | const TopoDS_Edge& anEdge, |
725 | const TopoDS_Face& myFace, |
726 | const GeomAdaptor_Surface& aGAS, |
51db0179 |
727 | const Standard_Boolean bIsIN, |
728 | const Handle(IntTools_Context)& theContext) |
4e57c75e |
729 | { |
730 | Standard_Real aFirst, aLast, aToler, dt, aTV, aTV1, anAngle, aTX; |
731 | gp_Pnt2d aPV, aPV1; |
732 | gp_Vec2d aV2D; |
733 | Handle(Geom2d_Curve) aC2D; |
734 | // |
735 | aTV=BRep_Tool::Parameter (aV, anEdge, myFace); |
736 | if (Precision::IsInfinite(aTV)) { |
737 | return 0.; |
738 | } |
739 | // |
740 | BOPTools_AlgoTools2D::CurveOnSurface (anEdge, myFace, aC2D, |
51db0179 |
741 | aFirst, aLast, aToler, theContext); |
3ba87fdb |
742 | Standard_Real tol2d =2.*Tolerance2D(aV, aGAS); |
743 | // |
744 | GeomAbs_CurveType aType; |
745 | Geom2dAdaptor_Curve aGAC2D(aC2D); |
746 | // |
747 | dt = Max(aGAC2D.Resolution(tol2d), Precision::PConfusion()); |
4e57c75e |
748 | // |
3ba87fdb |
749 | aType=aGAC2D.GetType(); |
750 | if (aType != GeomAbs_Line ) |
751 | { |
752 | Geom2dLProp_CLProps2d LProp(aC2D, aTV, 2, Precision::PConfusion()); |
753 | if(LProp.IsTangentDefined()) |
754 | { |
755 | Standard_Real R = LProp.Curvature(); |
756 | if(R > Precision::PConfusion()) |
757 | { |
758 | R = 1./R; |
759 | Standard_Real cosphi = R / (R + tol2d); |
760 | dt = Max(dt, ACos(cosphi)); //to avoid small dt for big R. |
761 | } |
762 | } |
763 | } |
4e57c75e |
764 | //for case chl/927/r9 |
3ba87fdb |
765 | aTX=0.05*(aLast - aFirst);//aTX=0.25*(aLast - aFirst); |
4e57c75e |
766 | if (aTX < 5.e-5) { |
767 | aTX = 5.e-5; |
768 | } |
769 | if(dt > aTX) { |
770 | // to save direction of the curve as much as it possible |
771 | // in the case of big tolerances |
772 | dt = aTX; |
773 | } |
3ba87fdb |
774 | |
4e57c75e |
775 | if (fabs (aTV-aFirst) < fabs(aTV - aLast)) { |
776 | aTV1=aTV + dt; |
777 | } |
778 | else { |
779 | aTV1=aTV - dt; |
780 | } |
781 | // |
3ba87fdb |
782 | aGAC2D.D0 (aTV1, aPV1); |
783 | aGAC2D.D0 (aTV, aPV); |
784 | // |
785 | aV2D = bIsIN ? gp_Vec2d(aPV1, aPV) : gp_Vec2d(aPV, aPV1); |
4e57c75e |
786 | // |
787 | gp_Dir2d aDir2D(aV2D); |
788 | anAngle=Angle(aDir2D); |
789 | // |
790 | return anAngle; |
791 | } |
792 | //======================================================================= |
793 | // function: Angle |
794 | // purpose: |
795 | //======================================================================= |
796 | Standard_Real Angle (const gp_Dir2d& aDir2D) |
797 | { |
798 | gp_Dir2d aRefDir(1., 0.); |
799 | Standard_Real anAngle; |
800 | |
801 | anAngle = aRefDir.Angle(aDir2D); |
802 | if (anAngle < 0.) |
803 | anAngle += M_PI + M_PI; |
804 | return anAngle; |
805 | } |
806 | //======================================================================= |
807 | // function: Tolerance2D |
808 | // purpose: |
809 | //======================================================================= |
810 | Standard_Real Tolerance2D (const TopoDS_Vertex& aV, |
811 | const GeomAdaptor_Surface& aGAS) |
812 | { |
813 | Standard_Real aTol2D, anUr, aVr, aTolV3D; |
814 | GeomAbs_SurfaceType aType; |
815 | // |
816 | aType=aGAS.GetType(); |
817 | aTolV3D=BRep_Tool::Tolerance(aV); |
818 | |
819 | anUr=aGAS.UResolution(aTolV3D); |
820 | aVr =aGAS.VResolution(aTolV3D); |
821 | aTol2D=(aVr>anUr) ? aVr : anUr; |
822 | // |
823 | if (aTol2D < aTolV3D) { |
824 | aTol2D=aTolV3D; |
825 | } |
826 | if (aType==GeomAbs_BSplineSurface) { |
827 | aTol2D=1.1*aTol2D; |
828 | } |
829 | // |
830 | return aTol2D; |
831 | } |
acccace3 |
832 | |
4e57c75e |
833 | //======================================================================= |
834 | //function : UTolerance2D |
835 | //purpose : |
836 | //======================================================================= |
837 | Standard_Real UTolerance2D (const TopoDS_Vertex& aV, |
838 | const GeomAdaptor_Surface& aGAS) |
839 | { |
840 | const Standard_Real aTolV3D = BRep_Tool::Tolerance(aV); |
841 | const Standard_Real anUr = aGAS.UResolution(aTolV3D); |
842 | // |
843 | return anUr; |
844 | } |
845 | |
846 | //======================================================================= |
847 | //function : VTolerance2D |
848 | //purpose : |
849 | //======================================================================= |
850 | Standard_Real VTolerance2D (const TopoDS_Vertex& aV, |
851 | const GeomAdaptor_Surface& aGAS) |
852 | { |
853 | const Standard_Real aTolV3D = BRep_Tool::Tolerance(aV); |
854 | const Standard_Real anVr = aGAS.VResolution(aTolV3D); |
855 | // |
856 | return anVr; |
857 | } |
858 | |
c5face6f |
859 | //======================================================================= |
860 | //function : RefineAngles |
861 | //purpose : |
862 | //======================================================================= |
863 | void RefineAngles(const TopoDS_Face& myFace, |
864 | const BOPCol_ListOfShape& myEdges, |
51db0179 |
865 | BOPAlgo_IndexedDataMapOfShapeListOfEdgeInfo& mySmartMap, |
866 | const Handle(IntTools_Context)& theContext) |
c5face6f |
867 | { |
868 | Standard_Integer aNb, i; |
319da2e4 |
869 | BOPCol_IndexedDataMapOfShapeInteger aMSI; |
c5face6f |
870 | BOPCol_MapOfShape aMBE; |
871 | BOPCol_ListIteratorOfListOfShape aIt; |
872 | // |
873 | // 1. Boundary Edges |
874 | aIt.Initialize(myEdges); |
875 | for(; aIt.More(); aIt.Next()) { |
876 | const TopoDS_Shape& aE=aIt.Value(); |
319da2e4 |
877 | if(aMSI.Contains(aE)) { |
878 | Standard_Integer& iCnt = aMSI.ChangeFromKey(aE); |
c5face6f |
879 | ++iCnt; |
880 | } |
881 | else { |
319da2e4 |
882 | Standard_Integer iCnt = 1; |
883 | aMSI.Add(aE, iCnt); |
c5face6f |
884 | } |
885 | } |
886 | // |
319da2e4 |
887 | aNb = aMSI.Extent(); |
888 | for (i = 1; i <= aNb; ++i) { |
889 | Standard_Integer iCnt = aMSI(i); |
890 | if (iCnt == 1) { |
891 | const TopoDS_Shape& aE = aMSI.FindKey(i); |
c5face6f |
892 | aMBE.Add(aE); |
893 | } |
c5face6f |
894 | } |
895 | // |
896 | aMSI.Clear(); |
897 | // |
319da2e4 |
898 | aNb = mySmartMap.Extent(); |
899 | for (i = 1; i <= aNb; ++i) { |
c5face6f |
900 | const TopoDS_Vertex& aV=*((TopoDS_Vertex*)&mySmartMap.FindKey(i)); |
901 | BOPAlgo_ListOfEdgeInfo& aLEI=mySmartMap(i); |
902 | // |
51db0179 |
903 | RefineAngles(aV, myFace, aMBE, aLEI, theContext); |
c5face6f |
904 | } |
905 | } |
906 | //======================================================================= |
907 | typedef NCollection_DataMap \ |
908 | <TopoDS_Shape, Standard_Real, TopTools_ShapeMapHasher> \ |
909 | BOPCol_DataMapOfShapeReal; |
910 | typedef BOPCol_DataMapOfShapeReal::Iterator \ |
911 | BOPCol_DataMapIteratorOfDataMapOfShapeReal; |
912 | // |
913 | //======================================================================= |
914 | //function : RefineAngles |
915 | //purpose : |
916 | //======================================================================= |
917 | void RefineAngles(const TopoDS_Vertex& aV, |
918 | const TopoDS_Face& myFace, |
919 | const BOPCol_MapOfShape& aMBE, |
51db0179 |
920 | BOPAlgo_ListOfEdgeInfo& aLEI, |
921 | const Handle(IntTools_Context)& theContext) |
c5face6f |
922 | { |
923 | Standard_Boolean bIsIn, bIsBoundary, bRefined; |
f56518cd |
924 | Standard_Integer iCntBnd, iCntInt; |
c5face6f |
925 | Standard_Real aA, aA1, aA2; |
926 | BOPCol_DataMapOfShapeReal aDMSR; |
927 | BOPAlgo_ListIteratorOfListOfEdgeInfo aItLEI; |
928 | // |
24542bc0 |
929 | aA1=0.; // angle of outgoing edge |
930 | aA2=0.; // angle of incoming edge |
f56518cd |
931 | iCntBnd=0; |
932 | iCntInt=0; |
c5face6f |
933 | aItLEI.Initialize(aLEI); |
934 | for (; aItLEI.More(); aItLEI.Next()) { |
935 | BOPAlgo_EdgeInfo& aEI=aItLEI.ChangeValue(); |
936 | const TopoDS_Edge& aE=aEI.Edge(); |
937 | bIsIn=aEI.IsIn(); |
938 | aA=aEI.Angle(); |
939 | // |
940 | if (aMBE.Contains(aE)) { |
f56518cd |
941 | ++iCntBnd; |
c5face6f |
942 | if (!bIsIn) { |
943 | aA1=aA; |
944 | } |
945 | else { |
24542bc0 |
946 | aA2=aA; |
c5face6f |
947 | } |
948 | } |
f56518cd |
949 | else { |
950 | ++iCntInt; |
951 | } |
c5face6f |
952 | } |
953 | // |
f56518cd |
954 | if (iCntBnd!=2) { |
c5face6f |
955 | return; |
956 | } |
957 | // |
24542bc0 |
958 | Standard_Real aDelta = ClockWiseAngle(aA2, aA1); |
c5face6f |
959 | aItLEI.Initialize(aLEI); |
960 | for (; aItLEI.More(); aItLEI.Next()) { |
961 | BOPAlgo_EdgeInfo& aEI=aItLEI.ChangeValue(); |
962 | const TopoDS_Edge& aE=aEI.Edge(); |
963 | // |
964 | bIsBoundary=aMBE.Contains(aE); |
965 | bIsIn=aEI.IsIn(); |
966 | if (bIsBoundary || bIsIn) { |
967 | continue; |
968 | } |
969 | // |
970 | aA=aEI.Angle(); |
24542bc0 |
971 | Standard_Real aDA = ClockWiseAngle(aA2, aA); |
972 | if (aDA < aDelta) { |
973 | continue; // already inside |
c5face6f |
974 | } |
975 | // |
24542bc0 |
976 | bRefined=RefineAngle2D(aV, aE, myFace, aA1, aA2, aDelta, aA, theContext); |
c5face6f |
977 | if (bRefined) { |
978 | aDMSR.Bind(aE, aA); |
979 | } |
f56518cd |
980 | else if (iCntInt == 2) { |
981 | aA = (aA <= aA1) ? (aA1 + Precision::Angular()) : |
982 | (aA2 - Precision::Angular()); |
983 | aDMSR.Bind(aE, aA); |
984 | } |
c5face6f |
985 | } |
986 | |
987 | if (aDMSR.IsEmpty()) { |
988 | return; |
989 | } |
990 | // |
991 | // update Angles |
992 | aItLEI.Initialize(aLEI); |
993 | for (; aItLEI.More(); aItLEI.Next()) { |
994 | BOPAlgo_EdgeInfo& aEI=aItLEI.ChangeValue(); |
995 | const TopoDS_Edge& aE=aEI.Edge(); |
996 | // |
997 | bIsIn=aEI.IsIn(); |
998 | if (!aDMSR.IsBound(aE)) { |
999 | continue; |
1000 | } |
1001 | // |
1002 | aA=aDMSR.Find(aE); |
1003 | if (bIsIn) { |
1004 | aA=aA+M_PI; |
1005 | } |
1006 | // |
1007 | aEI.SetAngle(aA); |
1008 | } |
1009 | } |
1010 | //======================================================================= |
1011 | //function : RefineAngle2D |
1012 | //purpose : |
1013 | //======================================================================= |
1014 | Standard_Boolean RefineAngle2D(const TopoDS_Vertex& aV, |
1015 | const TopoDS_Edge& aE, |
1016 | const TopoDS_Face& myFace, |
1017 | const Standard_Real aA1, |
1018 | const Standard_Real aA2, |
24542bc0 |
1019 | const Standard_Real aDelta, |
51db0179 |
1020 | Standard_Real& aA, |
1021 | const Handle(IntTools_Context)& theContext) |
c5face6f |
1022 | { |
1023 | Standard_Boolean bRet; |
f56518cd |
1024 | Standard_Integer i, j, aNbP; |
1025 | Standard_Real aTV, aTol, aT1, aT2, dT, aAngle, aT, aTOp; |
c5face6f |
1026 | Standard_Real aTolInt, aAi, aXi, aYi, aT1j, aT2j, aT1max, aT2max, aCf; |
1027 | gp_Pnt2d aPV, aP, aP1, aP2; |
1028 | Handle(Geom2d_Curve) aC2D; |
1029 | Handle(Geom2d_Line) aLi; |
1030 | Geom2dAdaptor_Curve aGAC1, aGAC2; |
1031 | Geom2dInt_GInter aGInter; |
1032 | IntRes2d_Domain aDomain1, aDomain2; |
1033 | // |
1034 | bRet=Standard_True; |
1035 | aCf=0.01; |
1036 | aTolInt=1.e-10; |
1037 | // |
51db0179 |
1038 | BOPTools_AlgoTools2D::CurveOnSurface(aE, myFace, aC2D, aT1, aT2, aTol, theContext); |
94f71cad |
1039 | aGAC1.Load(aC2D, aT1, aT2); |
c5face6f |
1040 | // |
1041 | aTV=BRep_Tool::Parameter (aV, aE, myFace); |
94f71cad |
1042 | aGAC1.D0(aTV, aPV); |
c5face6f |
1043 | // |
f56518cd |
1044 | aTOp = (fabs(aTV-aT1) < fabs(aTV-aT2)) ? aT2 : aT1; |
c5face6f |
1045 | // |
24542bc0 |
1046 | const Standard_Real MaxDT = 0.3 * (aT2 - aT1); |
94f71cad |
1047 | aGAC1.D0(aT1, aP1); |
1048 | aGAC1.D0(aT2, aP2); |
c5face6f |
1049 | aDomain1.SetValues(aP1, aT1, aTolInt, aP2, aT2, aTolInt); |
1050 | // |
1051 | for (i=0; i<2; ++i) { |
24542bc0 |
1052 | aAi=(!i) ? aA1 : (aA2 + M_PI); |
c5face6f |
1053 | aXi=cos(aAi); |
1054 | aYi=sin(aAi); |
1055 | gp_Dir2d aDiri(aXi, aYi); |
1056 | aLi=new Geom2d_Line(aPV, aDiri); |
1057 | // |
1058 | aGAC2.Load(aLi); |
c5face6f |
1059 | // |
1060 | aGInter.Perform(aGAC1, aDomain1, aGAC2, aDomain2, aTolInt, aTolInt); |
1061 | if (!aGInter.IsDone()) { |
1062 | continue; |
1063 | } |
1064 | // |
24542bc0 |
1065 | aNbP = aGInter.NbPoints(); |
1066 | aT1max = aTV; |
1067 | aT2max = -1.; |
1068 | for (j = 1; j <= aNbP; ++j) { |
1069 | const IntRes2d_IntersectionPoint& aIPj = aGInter.Point(j); |
1070 | aT1j = aIPj.ParamOnFirst(); |
1071 | aT2j = aIPj.ParamOnSecond(); |
c5face6f |
1072 | // |
24542bc0 |
1073 | if (aT2j > aT2max && Abs(aT1j - aTV) < MaxDT) { |
1074 | aT2max = aT2j; |
1075 | aT1max = aT1j; |
c5face6f |
1076 | } |
1077 | } |
1078 | // |
24542bc0 |
1079 | if (aT2max > 0) { |
1080 | dT = aTOp - aT1max; |
1081 | if (Abs(dT) < aTolInt) { |
1082 | continue; |
1083 | } |
1084 | // |
1085 | aT = aT1max + aCf*dT; |
1086 | aGAC1.D0(aT, aP); |
1087 | gp_Vec2d aV2D(aPV, aP); |
1088 | gp_Dir2d aDir2D(aV2D); |
1089 | // |
1090 | aAngle = Angle(aDir2D); |
1091 | Standard_Real aDA = ClockWiseAngle(aA2, aAngle); |
1092 | if (aDA < aDelta) { |
1093 | aA = aAngle; |
1094 | return bRet; |
1095 | } |
c5face6f |
1096 | } |
1097 | }// for (i=0; i<2; ++i) { |
1098 | return !bRet; |
24542bc0 |
1099 | } |