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b311480e | 1 | // Created on: 1995-10-19 |
2 | // Created by: Bruno DUMORTIER | |
3 | // Copyright (c) 1995-1999 Matra Datavision | |
4 | // Copyright (c) 1999-2012 OPEN CASCADE SAS | |
5 | // | |
6 | // The content of this file is subject to the Open CASCADE Technology Public | |
7 | // License Version 6.5 (the "License"). You may not use the content of this file | |
8 | // except in compliance with the License. Please obtain a copy of the License | |
9 | // at http://www.opencascade.org and read it completely before using this file. | |
10 | // | |
11 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
12 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
13 | // | |
14 | // The Original Code and all software distributed under the License is | |
15 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
16 | // Initial Developer hereby disclaims all such warranties, including without | |
17 | // limitation, any warranties of merchantability, fitness for a particular | |
18 | // purpose or non-infringement. Please see the License for the specific terms | |
19 | // and conditions governing the rights and limitations under the License. | |
20 | ||
7fd59977 | 21 | |
22 | ||
23 | #include <BRepOffset_Offset.ixx> | |
24 | ||
25 | #include <Adaptor3d_HCurveOnSurface.hxx> | |
26 | #include <Adaptor3d_CurveOnSurface.hxx> | |
27 | #include <BRepOffset.hxx> | |
28 | #include <BRepLib.hxx> | |
29 | #include <BRepLib_MakeFace.hxx> | |
30 | #include <BRepTools.hxx> | |
31 | #include <BRep_Tool.hxx> | |
32 | #include <BRep_Builder.hxx> | |
33 | #include <ElSLib.hxx> | |
34 | #include <GeomAPI.hxx> | |
35 | #include <Geom2d_Curve.hxx> | |
36 | #include <Geom2d_Line.hxx> | |
37 | #include <Geom2d_TrimmedCurve.hxx> | |
38 | #include <Geom_Line.hxx> | |
39 | #include <Geom_Circle.hxx> | |
40 | #include <Geom_Curve.hxx> | |
41 | #include <Geom_TrimmedCurve.hxx> | |
42 | #include <Geom_RectangularTrimmedSurface.hxx> | |
43 | #include <Geom_Surface.hxx> | |
44 | #include <Geom_OffsetSurface.hxx> | |
45 | #include <Geom_SphericalSurface.hxx> | |
46 | #include <Geom_ConicalSurface.hxx> | |
47 | #include <GeomAdaptor_HSurface.hxx> | |
48 | #include <GeomAdaptor_Surface.hxx> | |
49 | #include <GeomAdaptor_HCurve.hxx> | |
50 | #include <GeomAdaptor_Curve.hxx> | |
51 | #include <Geom2dAdaptor_HCurve.hxx> | |
52 | #include <Geom2dAdaptor_Curve.hxx> | |
53 | #include <GeomFill_Pipe.hxx> | |
54 | #include <GeomProjLib.hxx> | |
55 | #include <GeomConvert_ApproxSurface.hxx> | |
56 | #include <Precision.hxx> | |
57 | #include <Standard_ConstructionError.hxx> | |
58 | #include <TopoDS.hxx> | |
59 | #include <TopoDS_Wire.hxx> | |
60 | #include <TopExp.hxx> | |
61 | #include <TopExp_Explorer.hxx> | |
62 | #include <TopTools_ListIteratorOfListOfShape.hxx> | |
63 | #include <gp.hxx> | |
64 | #include <gp_Ax3.hxx> | |
65 | #include <gp_Cylinder.hxx> | |
66 | #include <gp_Torus.hxx> | |
67 | #include <gp_Lin.hxx> | |
68 | #include <gp_Pnt2d.hxx> | |
69 | ||
70 | #include <BRep_GCurve.hxx> | |
71 | #include <BRep_TEdge.hxx> | |
72 | #include <BRep_ListOfCurveRepresentation.hxx> | |
73 | #include <BRep_ListIteratorOfListOfCurveRepresentation.hxx> | |
74 | ||
75 | #include <TopTools_SequenceOfShape.hxx> | |
76 | #include <TopTools_MapOfShape.hxx> | |
77 | #include <BRepOffset_Tool.hxx> | |
78 | #include <GeomAPI_ExtremaCurveCurve.hxx> | |
79 | #include <GeomAPI_ProjectPointOnCurve.hxx> | |
80 | #include <GeomLib.hxx> | |
81 | ||
82 | #ifdef DEB | |
83 | static Standard_Boolean Affich = Standard_False; | |
84 | static Standard_Integer NbOFFSET = 0; | |
85 | #endif | |
86 | #ifdef DRAW | |
87 | #include <DrawTrSurf.hxx> | |
88 | #include <DBRep.hxx> | |
89 | #endif | |
90 | #include <stdio.h> | |
91 | ||
92 | //======================================================================= | |
93 | //function : UpdateEdge | |
94 | //purpose : | |
95 | //======================================================================= | |
96 | ||
97 | static void UpdateEdge(const TopoDS_Edge& E, | |
98 | const Handle(Geom_Curve)& C, | |
99 | const TopLoc_Location& L, | |
100 | const Standard_Real Tol) | |
101 | { | |
0d969553 | 102 | // Cut curves to avoid copies in the extensions. |
7fd59977 | 103 | BRep_Builder B; |
104 | Handle(Geom_TrimmedCurve) BC = Handle(Geom_TrimmedCurve)::DownCast(C); | |
105 | if (!BC.IsNull()) { | |
106 | B.UpdateEdge(E,BC->BasisCurve(),L,Tol); | |
107 | } | |
108 | else { | |
109 | B.UpdateEdge(E,C,L,Tol); | |
110 | } | |
111 | } | |
112 | ||
113 | //======================================================================= | |
114 | //function : UpdateEdge | |
115 | //purpose : | |
116 | //======================================================================= | |
117 | ||
118 | static void UpdateEdge(const TopoDS_Edge& E, | |
119 | const Handle(Geom2d_Curve)& C, | |
120 | const TopoDS_Face& F, | |
121 | const Standard_Real Tol) | |
122 | { | |
0d969553 | 123 | // Cut curves to avoid copies in the extensions. |
7fd59977 | 124 | BRep_Builder B; |
125 | Handle(Geom2d_TrimmedCurve) BC = Handle(Geom2d_TrimmedCurve)::DownCast(C); | |
126 | if (!BC.IsNull()) { | |
127 | B.UpdateEdge(E,BC->BasisCurve(),F,Tol); | |
128 | } | |
129 | else { | |
130 | B.UpdateEdge(E,C,F,Tol); | |
131 | } | |
132 | } | |
133 | ||
134 | //======================================================================= | |
135 | //function : UpdateEdge | |
136 | //purpose : | |
137 | //======================================================================= | |
138 | ||
139 | static void UpdateEdge (const TopoDS_Edge& E, | |
140 | const Handle(Geom2d_Curve)& C1, | |
141 | const Handle(Geom2d_Curve)& C2, | |
142 | const TopoDS_Face& F, | |
143 | const Standard_Real Tol) | |
144 | { | |
0d969553 | 145 | // Cut curves to avoid copies in the extensions. |
7fd59977 | 146 | BRep_Builder B; |
147 | Handle(Geom2d_Curve) NC1,NC2; | |
148 | Handle(Geom2d_TrimmedCurve) BC1 = Handle(Geom2d_TrimmedCurve)::DownCast(C1); | |
149 | Handle(Geom2d_TrimmedCurve) BC2 = Handle(Geom2d_TrimmedCurve)::DownCast(C2); | |
150 | if (!BC1.IsNull()) NC1 = BC1->BasisCurve(); else NC1 = C1; | |
151 | if (!BC2.IsNull()) NC2 = BC2->BasisCurve(); else NC2 = C2; | |
152 | B.UpdateEdge(E,NC1,NC2,F,Tol); | |
153 | } | |
154 | ||
155 | //======================================================================= | |
156 | //function : Range3d | |
157 | //purpose : Set the range only on the 3d curve | |
0d969553 | 158 | // waitint that BRep_Builder does it !! |
7fd59977 | 159 | //======================================================================= |
160 | ||
161 | static void Range3d (const TopoDS_Edge& E, | |
162 | const Standard_Real First, | |
163 | const Standard_Real Last) | |
164 | { | |
165 | // set the range to all the representations | |
166 | const Handle(BRep_TEdge)& TE = *((Handle(BRep_TEdge)*) &E.TShape()); | |
167 | ||
168 | BRep_ListOfCurveRepresentation& lcr = TE->ChangeCurves(); | |
169 | BRep_ListIteratorOfListOfCurveRepresentation itcr(lcr); | |
170 | Handle(BRep_GCurve) GC; | |
171 | ||
172 | while (itcr.More()) { | |
173 | GC = Handle(BRep_GCurve)::DownCast(itcr.Value()); | |
174 | if (!GC.IsNull()) { | |
175 | if (GC->IsCurve3D()) { | |
176 | GC->SetRange(First,Last); | |
177 | // Set the closedness flag to the correct value. | |
178 | Handle(Geom_Curve) C = GC->Curve3D(); | |
179 | if ( !C.IsNull() ) { | |
180 | Standard_Boolean closed = | |
181 | C->Value(First).IsEqual(C->Value(Last),BRep_Tool::Tolerance(E)); | |
182 | TE->Closed(closed); | |
183 | } | |
184 | } | |
185 | } | |
186 | itcr.Next(); | |
187 | } | |
188 | ||
189 | TE->Modified(Standard_True); | |
190 | } | |
191 | ||
192 | ||
193 | //======================================================================= | |
194 | //function : ComputeCurve3d | |
195 | //purpose : Particular case of Curve On Surface. | |
196 | //======================================================================= | |
197 | ||
198 | static void ComputeCurve3d(TopoDS_Edge Edge, | |
199 | Handle(Geom2d_Curve) Curve, | |
200 | Handle(Geom_Surface) Surf, | |
201 | const TopLoc_Location Loc, | |
202 | Standard_Real Tol) | |
203 | { | |
204 | // try to find the particular case | |
205 | // if not found call BRepLib::BuildCurve3d | |
206 | ||
207 | Standard_Boolean IsComputed = Standard_False; | |
208 | ||
0d969553 | 209 | // Search only isos on analytic surfaces. |
7fd59977 | 210 | Geom2dAdaptor_Curve C(Curve); |
211 | GeomAdaptor_Surface S(Surf); | |
212 | GeomAbs_CurveType CTy = C.GetType(); | |
213 | GeomAbs_SurfaceType STy = S.GetType(); | |
214 | BRep_Builder TheBuilder; | |
215 | ||
0d969553 | 216 | if ( STy != GeomAbs_Plane) { // if plane buildcurve3d manage KPart |
7fd59977 | 217 | if ( CTy == GeomAbs_Line) { |
218 | gp_Dir2d D = C.Line().Direction(); | |
219 | if ( D.IsParallel(gp::DX2d(),Precision::Angular())) { // Iso V. | |
220 | if ( STy == GeomAbs_Sphere) { | |
221 | gp_Pnt2d P = C.Line().Location(); | |
c6541a0c | 222 | if ( Abs( Abs(P.Y()) -M_PI/2. ) < Precision::PConfusion()) { |
7fd59977 | 223 | TheBuilder.Degenerated(Edge, Standard_True); |
224 | } | |
225 | else { | |
226 | gp_Sphere Sph = S.Sphere(); | |
227 | gp_Ax3 Axis = Sph.Position(); | |
228 | gp_Circ Ci = ElSLib::SphereVIso(Axis, | |
229 | Sph.Radius(), | |
230 | P.Y()); | |
231 | gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection()); | |
232 | gp_Ax1 AxeRev(Axis.Location(), DRev); | |
233 | Ci.Rotate(AxeRev, P.X()); | |
234 | Handle(Geom_Circle) Circle = new Geom_Circle(Ci); | |
235 | if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) | |
236 | Circle->Reverse(); | |
237 | UpdateEdge(Edge, Circle, Loc, Tol); | |
238 | } | |
239 | IsComputed = Standard_True; | |
240 | } | |
241 | else if ( STy == GeomAbs_Cylinder) { | |
242 | gp_Cylinder Cyl = S.Cylinder(); | |
243 | gp_Pnt2d P = C.Line().Location(); | |
244 | gp_Ax3 Axis = Cyl.Position(); | |
245 | gp_Circ Ci = ElSLib::CylinderVIso(Axis, | |
246 | Cyl.Radius(), | |
247 | P.Y()); | |
248 | gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection()); | |
249 | gp_Ax1 AxeRev(Axis.Location(), DRev); | |
250 | Ci.Rotate(AxeRev, P.X()); | |
251 | Handle(Geom_Circle) Circle = new Geom_Circle(Ci); | |
252 | if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) | |
253 | Circle->Reverse(); | |
254 | UpdateEdge(Edge, Circle, Loc, Tol); | |
255 | IsComputed = Standard_True; | |
256 | } | |
257 | else if ( STy == GeomAbs_Cone) { | |
258 | gp_Cone Cone = S.Cone(); | |
259 | gp_Pnt2d P = C.Line().Location(); | |
260 | gp_Ax3 Axis = Cone.Position(); | |
261 | gp_Circ Ci = ElSLib::ConeVIso(Axis, | |
262 | Cone.RefRadius(), | |
263 | Cone.SemiAngle(), | |
264 | P.Y()); | |
265 | gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection()); | |
266 | gp_Ax1 AxeRev(Axis.Location(), DRev); | |
267 | Ci.Rotate(AxeRev, P.X()); | |
268 | Handle(Geom_Circle) Circle = new Geom_Circle(Ci); | |
269 | if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) | |
270 | Circle->Reverse(); | |
271 | UpdateEdge(Edge, Circle, Loc, Tol); | |
272 | IsComputed = Standard_True; | |
273 | } | |
274 | else if ( STy == GeomAbs_Torus) { | |
275 | gp_Torus Tore = S.Torus(); | |
276 | gp_Pnt2d P = C.Line().Location(); | |
277 | gp_Ax3 Axis = Tore.Position(); | |
278 | gp_Circ Ci = ElSLib::TorusVIso(Axis, | |
279 | Tore.MajorRadius(), | |
280 | Tore.MinorRadius(), | |
281 | P.Y()); | |
282 | gp_Dir DRev = Axis.XDirection().Crossed(Axis.YDirection()); | |
283 | gp_Ax1 AxeRev(Axis.Location(), DRev); | |
284 | Ci.Rotate(AxeRev, P.X()); | |
285 | Handle(Geom_Circle) Circle = new Geom_Circle(Ci); | |
286 | if ( D.IsOpposite(gp::DX2d(),Precision::Angular())) | |
287 | Circle->Reverse(); | |
288 | UpdateEdge(Edge, Circle, Loc, Tol); | |
289 | IsComputed = Standard_True; | |
290 | } | |
291 | } | |
292 | else if ( D.IsParallel(gp::DY2d(),Precision::Angular())) { // Iso U. | |
293 | if ( STy == GeomAbs_Sphere) { | |
294 | gp_Sphere Sph = S.Sphere(); | |
295 | gp_Pnt2d P = C.Line().Location(); | |
296 | gp_Ax3 Axis = Sph.Position(); | |
0d969553 | 297 | // calculate iso 0. |
7fd59977 | 298 | gp_Circ Ci = ElSLib::SphereUIso(Axis, Sph.Radius(),0.); |
299 | ||
0d969553 | 300 | // set to sameparameter (rotation of circle - offset of Y) |
7fd59977 | 301 | gp_Dir DRev = Axis.XDirection().Crossed(Axis. Direction()); |
302 | gp_Ax1 AxeRev(Axis.Location(),DRev); | |
303 | Ci.Rotate(AxeRev, P.Y()); | |
304 | ||
305 | // transformation en iso U ( = P.X()) | |
306 | DRev = Axis.XDirection().Crossed(Axis.YDirection()); | |
307 | AxeRev = gp_Ax1(Axis.Location(), DRev); | |
308 | Ci.Rotate(AxeRev, P.X()); | |
309 | Handle(Geom_Circle) Circle = new Geom_Circle(Ci); | |
310 | ||
311 | if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) | |
312 | Circle->Reverse(); | |
313 | UpdateEdge(Edge, Circle, Loc, Tol); | |
314 | IsComputed = Standard_True; | |
315 | } | |
316 | else if ( STy == GeomAbs_Cylinder) { | |
317 | gp_Cylinder Cyl = S.Cylinder(); | |
318 | gp_Pnt2d P = C.Line().Location(); | |
319 | gp_Lin L = ElSLib::CylinderUIso(Cyl.Position(), | |
320 | Cyl.Radius(), | |
321 | P.X()); | |
322 | gp_Vec Tr(L.Direction()); | |
323 | Tr.Multiply(P.Y()); | |
324 | L.Translate(Tr); | |
325 | Handle(Geom_Line) Line = new Geom_Line(L); | |
326 | if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) | |
327 | Line->Reverse(); | |
328 | UpdateEdge(Edge, Line, Loc, Tol); | |
329 | IsComputed = Standard_True; | |
330 | } | |
331 | else if ( STy == GeomAbs_Cone) { | |
332 | gp_Cone Cone = S.Cone(); | |
333 | gp_Pnt2d P = C.Line().Location(); | |
334 | gp_Lin L = ElSLib::ConeUIso(Cone.Position(), | |
335 | Cone.RefRadius(), | |
336 | Cone.SemiAngle(), | |
337 | P.X()); | |
338 | gp_Vec Tr(L.Direction()); | |
339 | Tr.Multiply(P.Y()); | |
340 | L.Translate(Tr); Handle(Geom_Line) Line = new Geom_Line(L); | |
341 | if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) | |
342 | Line->Reverse(); | |
343 | UpdateEdge(Edge, Line, Loc, Tol); | |
344 | IsComputed = Standard_True; | |
345 | } | |
346 | else if ( STy == GeomAbs_Torus) { | |
347 | gp_Torus Tore = S.Torus(); | |
348 | gp_Pnt2d P = C.Line().Location(); | |
349 | gp_Ax3 Axis = Tore.Position(); | |
350 | gp_Circ Ci = ElSLib::TorusUIso(Axis, | |
351 | Tore.MajorRadius(), | |
352 | Tore.MinorRadius(), | |
353 | P.X()); | |
354 | Ci.Rotate(Ci.Axis(),P.Y()); | |
355 | Handle(Geom_Circle) Circle = new Geom_Circle(Ci); | |
356 | ||
357 | if ( D.IsOpposite(gp::DY2d(),Precision::Angular())) | |
358 | Circle->Reverse(); | |
359 | UpdateEdge(Edge, Circle, Loc, Tol); | |
360 | IsComputed = Standard_True; | |
361 | } | |
362 | } | |
363 | } | |
364 | } | |
365 | else { // Cas Plan | |
366 | Handle(Geom_Curve) C3d = GeomAPI::To3d(Curve,S.Plane()); | |
367 | UpdateEdge(Edge, C3d, Loc, Tol); | |
368 | IsComputed = Standard_True; | |
369 | } | |
370 | if ( !IsComputed) { | |
371 | //BRepLib::BuildCurves3d(Edge,Tol); | |
372 | //Les Courbes 3d des edges dans le cas general ne sont calcules que si | |
373 | // necessaire | |
374 | //ie dans les tuyaux et les bouchons .. | |
375 | // dans la derniere etapes de MakeShells on reconstruira les courbes3d | |
376 | // des edges du resultat qui n en ont pas. | |
377 | } | |
378 | } | |
379 | ||
380 | ||
381 | //======================================================================= | |
382 | //function : BRepOffset_Offset | |
383 | //purpose : | |
384 | //======================================================================= | |
385 | ||
386 | BRepOffset_Offset::BRepOffset_Offset() | |
387 | { | |
388 | } | |
389 | ||
390 | ||
391 | //======================================================================= | |
392 | //function : BRepOffset_Offset | |
393 | //purpose : | |
394 | //======================================================================= | |
395 | ||
396 | BRepOffset_Offset::BRepOffset_Offset(const TopoDS_Face& Face, | |
397 | const Standard_Real Offset, | |
398 | const Standard_Boolean OffsetOutside, | |
399 | const GeomAbs_JoinType JoinType) | |
400 | { | |
401 | Init(Face, Offset, OffsetOutside, JoinType); | |
402 | } | |
403 | ||
404 | ||
405 | //======================================================================= | |
406 | //function : BRepOffset_Offset | |
407 | //purpose : | |
408 | //======================================================================= | |
409 | ||
410 | BRepOffset_Offset::BRepOffset_Offset | |
411 | (const TopoDS_Face& Face, | |
412 | const Standard_Real Offset, | |
413 | const TopTools_DataMapOfShapeShape& Created, | |
414 | const Standard_Boolean OffsetOutside, | |
415 | const GeomAbs_JoinType JoinType) | |
416 | { | |
417 | Init(Face,Offset,Created,OffsetOutside,JoinType); | |
418 | } | |
419 | ||
420 | ||
421 | //======================================================================= | |
422 | //function : BRepOffset_Offset | |
423 | //purpose : | |
424 | //======================================================================= | |
425 | ||
426 | BRepOffset_Offset::BRepOffset_Offset(const TopoDS_Edge& Path, | |
427 | const TopoDS_Edge& Edge1, | |
428 | const TopoDS_Edge& Edge2, | |
429 | const Standard_Real Offset, | |
430 | const Standard_Boolean Polynomial, | |
431 | const Standard_Real Tol, | |
432 | const GeomAbs_Shape Conti) | |
433 | { | |
434 | Init(Path,Edge1,Edge2,Offset,Polynomial,Tol,Conti); | |
435 | } | |
436 | ||
437 | ||
438 | //======================================================================= | |
439 | //function : BRepOffset_Offset | |
440 | //purpose : | |
441 | //======================================================================= | |
442 | ||
443 | BRepOffset_Offset::BRepOffset_Offset | |
444 | (const TopoDS_Edge& Path, | |
445 | const TopoDS_Edge& Edge1, | |
446 | const TopoDS_Edge& Edge2, | |
447 | const Standard_Real Offset, | |
448 | const TopoDS_Edge& FirstEdge, | |
449 | const TopoDS_Edge& LastEdge, | |
450 | const Standard_Boolean Polynomial, | |
451 | const Standard_Real Tol, | |
452 | const GeomAbs_Shape Conti) | |
453 | { | |
454 | Init(Path,Edge1,Edge2,Offset,FirstEdge,LastEdge,Polynomial,Tol,Conti); | |
455 | } | |
456 | ||
457 | ||
458 | //======================================================================= | |
459 | //function : BRepOffset_Offset | |
460 | //purpose : | |
461 | //======================================================================= | |
462 | ||
463 | BRepOffset_Offset::BRepOffset_Offset(const TopoDS_Vertex& Vertex, | |
464 | const TopTools_ListOfShape& LEdge, | |
465 | const Standard_Real Offset, | |
466 | const Standard_Boolean Polynomial, | |
467 | const Standard_Real Tol, | |
468 | const GeomAbs_Shape Conti) | |
469 | { | |
470 | Init(Vertex,LEdge,Offset,Polynomial,Tol,Conti); | |
471 | } | |
472 | ||
473 | ||
474 | //======================================================================= | |
475 | //function : Init | |
476 | //purpose : | |
477 | //======================================================================= | |
478 | ||
479 | void BRepOffset_Offset::Init(const TopoDS_Face& Face, | |
480 | const Standard_Real Offset, | |
481 | const Standard_Boolean OffsetOutside, | |
482 | const GeomAbs_JoinType JoinType) | |
483 | { | |
484 | TopTools_DataMapOfShapeShape Empty; | |
485 | Init(Face,Offset,Empty,OffsetOutside,JoinType); | |
486 | } | |
487 | ||
488 | ||
489 | //======================================================================= | |
490 | //function : Init | |
491 | //purpose : | |
492 | //======================================================================= | |
493 | ||
494 | void BRepOffset_Offset::Init(const TopoDS_Face& Face, | |
495 | const Standard_Real Offset, | |
496 | const TopTools_DataMapOfShapeShape& Created, | |
497 | const Standard_Boolean OffsetOutside, | |
498 | const GeomAbs_JoinType JoinType) | |
499 | { | |
500 | myShape = Face; | |
501 | Standard_Real myOffset = Offset; | |
502 | if ( Face.Orientation() == TopAbs_REVERSED) | |
503 | myOffset *= -1.; | |
504 | ||
505 | TopLoc_Location L; | |
506 | Handle(Geom_Surface) S = BRep_Tool::Surface(Face,L); | |
507 | ||
508 | // On detrime les surfaces, evite des recopies dans les extensions. | |
509 | Handle(Geom_RectangularTrimmedSurface) RT = | |
510 | Handle(Geom_RectangularTrimmedSurface)::DownCast(S); | |
511 | if (!RT.IsNull()) S = RT->BasisSurface(); | |
512 | ||
513 | // particular case of cone | |
514 | Handle(Geom_ConicalSurface) Co; | |
515 | Co = Handle(Geom_ConicalSurface)::DownCast(S); | |
516 | if ( !Co.IsNull()) { | |
517 | Standard_Real Uc,Vc; | |
518 | gp_Pnt Apex = Co->Apex(); | |
519 | ElSLib::Parameters( Co->Cone(),Apex,Uc,Vc); | |
520 | Standard_Real UU1,UU2,VV1,VV2; | |
521 | BRepTools::UVBounds(Face,UU1,UU2,VV1,VV2); | |
522 | if ( VV2 < Vc && Co->SemiAngle() > 0 ) | |
523 | myOffset *= -1; | |
524 | else if ( VV1 > Vc && Co->SemiAngle() < 0 ) | |
525 | myOffset *= -1; | |
526 | if ( !Co->Position().Direct()) myOffset *= -1; | |
527 | } | |
528 | ||
529 | Handle(Geom_Surface) TheSurf = | |
530 | BRepOffset::Surface( S, myOffset, myStatus); | |
531 | ||
532 | //processing offsets of faces with possible degenerated edges | |
533 | Standard_Boolean VminDegen = Standard_False; | |
534 | Standard_Boolean VmaxDegen = Standard_False; | |
535 | gp_Pnt MinApex, MaxApex; | |
536 | Standard_Boolean HasSingularity = Standard_False; | |
537 | Standard_Real uf1, uf2, vf1, vf2, fpar, lpar; | |
538 | BRepTools::UVBounds(Face, uf1, uf2, vf1, vf2); | |
539 | if (!(OffsetOutside && JoinType == GeomAbs_Arc) && | |
540 | (TheSurf->DynamicType() == STANDARD_TYPE(Geom_ConicalSurface) || | |
541 | TheSurf->DynamicType() == STANDARD_TYPE(Geom_OffsetSurface))) | |
542 | { | |
543 | TopTools_SequenceOfShape DegEdges; | |
544 | TopExp_Explorer Explo(Face, TopAbs_EDGE); | |
545 | for (; Explo.More(); Explo.Next()) | |
546 | { | |
547 | const TopoDS_Edge& anEdge = TopoDS::Edge(Explo.Current()); | |
548 | if (BRep_Tool::Degenerated(anEdge)) | |
549 | DegEdges.Append(anEdge); | |
550 | } | |
551 | if (!DegEdges.IsEmpty()) | |
552 | { | |
553 | const Standard_Real TolApex = 1.e-5; | |
554 | if (DegEdges.Length() == 2) | |
555 | { | |
556 | VminDegen = Standard_True; | |
557 | VmaxDegen = Standard_True; | |
558 | } | |
559 | else //DegEdges.Length() == 1 | |
560 | { | |
561 | const TopoDS_Edge& theDegEdge = TopoDS::Edge(DegEdges(1)); | |
562 | Handle(Geom2d_Curve) aCurve = BRep_Tool::CurveOnSurface(theDegEdge, Face, fpar, lpar); | |
563 | gp_Pnt2d aPnt2d = aCurve->Value(fpar); | |
564 | if (Abs(aPnt2d.Y() - vf1) <= Precision::Confusion()) | |
565 | VminDegen = Standard_True; | |
566 | else | |
567 | VmaxDegen = Standard_True; | |
568 | } | |
569 | if (TheSurf->DynamicType() == STANDARD_TYPE(Geom_ConicalSurface)) | |
570 | { | |
571 | gp_Cone theCone = (*((Handle(Geom_ConicalSurface)*)&TheSurf))->Cone(); | |
572 | gp_Pnt apex = theCone.Apex(); | |
573 | Standard_Real Uapex, Vapex; | |
574 | ElSLib::Parameters( theCone, apex, Uapex, Vapex ); | |
575 | if (VminDegen) | |
576 | { | |
577 | TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, Vapex, vf2); | |
578 | MinApex = apex; | |
579 | HasSingularity = Standard_True; | |
580 | } | |
581 | else if (VmaxDegen) | |
582 | { | |
583 | TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, vf1, Vapex); | |
584 | MaxApex = apex; | |
585 | HasSingularity = Standard_True; | |
586 | } | |
587 | } | |
588 | else //TheSurf->DynamicType() == STANDARD_TYPE(Geom_OffsetSurface) | |
589 | { | |
590 | if (VminDegen) | |
591 | { | |
592 | Handle(Geom_Curve) viso = TheSurf->VIso( vf1 ); | |
593 | if (BRepOffset_Tool::Gabarit( viso ) > TolApex) | |
594 | { | |
595 | Handle(Geom_Surface) BasisSurf = (*((Handle(Geom_OffsetSurface)*)&TheSurf))->BasisSurface(); | |
596 | gp_Pnt Papex, Pfirst, Plast, Pmid; | |
597 | Papex = BasisSurf->Value( uf1, vf1 ); | |
598 | Pfirst = TheSurf->Value( uf1, vf1 ); | |
599 | Plast = TheSurf->Value( uf2, vf1 ); | |
600 | Pmid = TheSurf->Value( (uf1+uf2)/2., vf1 ); | |
601 | gp_Vec DirApex = gp_Vec(Pfirst,Pmid) ^ gp_Vec(Pfirst,Plast); | |
602 | Handle(Geom_Line) LineApex = new Geom_Line( Papex, DirApex ); | |
603 | gp_Vec DirGeneratrix = BasisSurf->DN( uf1, vf1, 0, 1 ); | |
604 | Handle(Geom_Line) LineGeneratrix = new Geom_Line( Pfirst, DirGeneratrix ); | |
605 | GeomAPI_ExtremaCurveCurve theExtrema( LineGeneratrix, LineApex ); | |
606 | gp_Pnt Pint1, Pint2; | |
607 | theExtrema.NearestPoints(Pint1, Pint2); | |
608 | Standard_Real length = Pfirst.Distance(Pint1); | |
609 | if (OffsetOutside) | |
610 | { | |
611 | TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, vf1, vf2); | |
612 | GeomLib::ExtendSurfByLength(*((Handle(Geom_BoundedSurface)*)&TheSurf), length, 1, | |
613 | Standard_False, Standard_False); | |
614 | Standard_Real u1, u2, v1, v2; | |
615 | TheSurf->Bounds( u1, u2, v1, v2 ); | |
616 | MinApex = TheSurf->Value( uf1, v1 ); | |
617 | } | |
618 | else | |
619 | { | |
620 | Handle(Geom_Curve) uiso = TheSurf->UIso( uf1 ); | |
621 | GeomAPI_ProjectPointOnCurve Projector( Pint1, uiso ); | |
622 | Standard_Real NewFirstV = Projector.LowerDistanceParameter(); | |
623 | TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, NewFirstV, vf2); | |
624 | MinApex = TheSurf->Value( uf1, NewFirstV ); | |
625 | //TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, vf1+length, vf2); | |
626 | //MinApex = TheSurf->Value( uf1, vf1+length ); | |
627 | } | |
628 | HasSingularity = Standard_True; | |
629 | } | |
630 | } //end of if (VminDegen) | |
631 | if (VmaxDegen) | |
632 | { | |
633 | Handle(Geom_Curve) viso = TheSurf->VIso( vf2 ); | |
634 | if (BRepOffset_Tool::Gabarit( viso ) > TolApex) | |
635 | { | |
636 | Handle(Geom_Surface) BasisSurf = (*((Handle(Geom_OffsetSurface)*)&TheSurf))->BasisSurface(); | |
637 | gp_Pnt Papex, Pfirst, Plast, Pmid; | |
638 | Papex = BasisSurf->Value( uf1, vf2 ); | |
639 | Pfirst = TheSurf->Value( uf1, vf2 ); | |
640 | Plast = TheSurf->Value( uf2, vf2 ); | |
641 | Pmid = TheSurf->Value( (uf1+uf2)/2., vf2 ); | |
642 | gp_Vec DirApex = gp_Vec(Pfirst,Pmid) ^ gp_Vec(Pfirst,Plast); | |
643 | Handle(Geom_Line) LineApex = new Geom_Line( Papex, DirApex ); | |
644 | gp_Vec DirGeneratrix = BasisSurf->DN( uf1, vf2, 0, 1 ); | |
645 | Handle(Geom_Line) LineGeneratrix = new Geom_Line( Pfirst, DirGeneratrix ); | |
646 | GeomAPI_ExtremaCurveCurve theExtrema( LineGeneratrix, LineApex ); | |
647 | gp_Pnt Pint1, Pint2; | |
648 | theExtrema.NearestPoints(Pint1, Pint2); | |
649 | Standard_Real length = Pfirst.Distance(Pint1); | |
650 | if (OffsetOutside) | |
651 | { | |
652 | TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, vf1, vf2); | |
653 | GeomLib::ExtendSurfByLength(*((Handle(Geom_BoundedSurface)*)&TheSurf), length, 1, | |
654 | Standard_False, Standard_True); | |
655 | Standard_Real u1, u2, v1, v2; | |
656 | TheSurf->Bounds( u1, u2, v1, v2 ); | |
657 | MaxApex = TheSurf->Value( uf1, v2 ); | |
658 | } | |
659 | else | |
660 | { | |
661 | Handle(Geom_Curve) uiso = TheSurf->UIso( uf1 ); | |
662 | GeomAPI_ProjectPointOnCurve Projector( Pint1, uiso ); | |
663 | Standard_Real NewLastV = Projector.LowerDistanceParameter(); | |
664 | TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, vf1, NewLastV); | |
665 | MaxApex = TheSurf->Value( uf1, NewLastV ); | |
666 | //TheSurf = new Geom_RectangularTrimmedSurface(TheSurf, uf1, uf2, vf1, vf2-length); | |
667 | //MaxApex = TheSurf->Value( uf1, vf2-length ); | |
668 | } | |
669 | HasSingularity = Standard_True; | |
670 | } | |
671 | } //end of if (VmaxDegen) | |
672 | } //end of else (case of Geom_OffsetSurface) | |
673 | } //end of if (!DegEdges.IsEmpty()) | |
674 | } //end of processing offsets of faces with possible degenerated edges | |
675 | ||
676 | // find the PCurves of the edges of <Faces> | |
677 | ||
678 | BRep_Builder myBuilder; | |
679 | myBuilder.MakeFace(myFace); | |
680 | myBuilder.UpdateFace(myFace,TheSurf,L,BRep_Tool::Tolerance(Face)); | |
681 | ||
682 | TopTools_DataMapOfShapeShape MapSS; | |
683 | ||
684 | // mise a jour de la map sur les vertex deja crees | |
685 | TopoDS_Shape aLocalShape = Face.Oriented(TopAbs_FORWARD); | |
686 | TopoDS_Face CurFace = TopoDS::Face(aLocalShape); | |
687 | // TopoDS_Face CurFace = TopoDS::Face(Face.Oriented(TopAbs_FORWARD)); | |
688 | ||
689 | TopTools_MapOfShape VonDegen; | |
690 | Standard_Real u1, u2, v1, v2; | |
691 | TheSurf->Bounds( u1, u2, v1, v2 ); | |
692 | ||
693 | TopExp_Explorer exp(CurFace, TopAbs_EDGE); | |
694 | for ( ; exp.More(); exp.Next()) { | |
695 | const TopoDS_Edge& E = TopoDS::Edge(exp.Current()); | |
696 | TopoDS_Vertex V1,V2,OV1,OV2; | |
697 | TopExp::Vertices(E ,V1 ,V2 ); | |
698 | if (HasSingularity && BRep_Tool::Degenerated(E)) | |
699 | VonDegen.Add( V1 ); | |
700 | if (Created.IsBound(E)) { | |
701 | const TopoDS_Edge& OE = TopoDS::Edge(Created(E)); | |
702 | TopExp::Vertices(OE,OV1,OV2); | |
703 | if (!MapSS.IsBound(V1)) MapSS.Bind(V1,OV1); | |
704 | if (!MapSS.IsBound(V2)) MapSS.Bind(V2,OV2); | |
705 | } | |
706 | if (Created.IsBound(V1)) { | |
707 | if (!MapSS.IsBound(V1)) MapSS.Bind(V1,Created(V1)); | |
708 | } | |
709 | if (Created.IsBound(V2)) { | |
710 | if (!MapSS.IsBound(V2)) MapSS.Bind(V2,Created(V2)); | |
711 | } | |
712 | } | |
713 | ||
714 | TopExp_Explorer expw(CurFace, TopAbs_WIRE); | |
715 | for ( ; expw.More(); expw.Next()) { | |
716 | const TopoDS_Wire& W = TopoDS::Wire(expw.Current()); | |
717 | TopExp_Explorer expe(W.Oriented(TopAbs_FORWARD), | |
718 | TopAbs_EDGE); | |
719 | TopoDS_Wire OW; | |
720 | myBuilder.MakeWire(OW); | |
721 | for ( ; expe.More(); expe.Next()) { | |
722 | const TopoDS_Edge& E = TopoDS::Edge(expe.Current()); | |
723 | TopoDS_Vertex V1,V2; | |
724 | TopExp::Vertices(E,V1,V2); | |
725 | gp_Pnt2d P2d1, P2d2; | |
726 | gp_Pnt P1, P2; | |
727 | Standard_Real vstart, vend; | |
728 | Standard_Real f,l; | |
729 | Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E,CurFace,f,l); | |
730 | TopoDS_Edge OE; | |
731 | if (MapSS.IsBound(E) && | |
732 | !VonDegen.Contains(V1) && !VonDegen.Contains(V2)) { // c`est un edge de couture | |
733 | OE = TopoDS::Edge(MapSS(E)); | |
734 | TopoDS_Shape aLocalShape = E.Reversed(); | |
735 | Handle(Geom2d_Curve) C2d_1 = | |
736 | BRep_Tool::CurveOnSurface(TopoDS::Edge(aLocalShape),CurFace,f,l); | |
737 | // Handle(Geom2d_Curve) C2d_1 = | |
738 | // BRep_Tool::CurveOnSurface(TopoDS::Edge(E.Reversed()),CurFace,f,l); | |
739 | if ( E.Orientation() == TopAbs_FORWARD) | |
740 | UpdateEdge(OE,C2d,C2d_1,myFace,BRep_Tool::Tolerance(E)); | |
741 | else | |
742 | UpdateEdge(OE,C2d_1,C2d,myFace,BRep_Tool::Tolerance(E)); | |
743 | myBuilder.Range(OE,f,l); | |
744 | } | |
745 | else { | |
746 | TopoDS_Shape aLocalShape = E.Oriented(TopAbs_FORWARD); | |
747 | TopoDS_Edge Eforward = TopoDS::Edge(aLocalShape); | |
748 | P2d1 = C2d->Value(BRep_Tool::Parameter(V1,Eforward,CurFace)); | |
749 | P2d2 = C2d->Value(BRep_Tool::Parameter(V2,Eforward,CurFace)); | |
750 | if (VonDegen.Contains(V1)) | |
751 | { | |
752 | if (Abs(P2d1.Y() - vf1) <= Precision::Confusion()) | |
753 | { | |
754 | P1 = MinApex; vstart = v1; | |
755 | } | |
756 | else | |
757 | { | |
758 | P1 = MaxApex; vstart = v2; | |
759 | } | |
760 | } | |
761 | else | |
762 | { | |
763 | TheSurf->D0(P2d1.X(),P2d1.Y(),P1); | |
764 | P1.Transform(L.Transformation()); | |
765 | vstart = P2d1.Y(); | |
766 | } | |
767 | if (VonDegen.Contains(V2)) | |
768 | { | |
769 | if (Abs(P2d2.Y() - vf1) <= Precision::Confusion()) | |
770 | { | |
771 | P2 = MinApex; vend = v1; | |
772 | } | |
773 | else | |
774 | { | |
775 | P2 = MaxApex; vend = v2; | |
776 | } | |
777 | } | |
778 | else | |
779 | { | |
780 | TheSurf->D0(P2d2.X(),P2d2.Y(),P2); | |
781 | P2.Transform(L.Transformation()); | |
782 | vend = P2d2.Y(); | |
783 | } | |
784 | // E a-t-il ume image dans la Map des Created ? | |
785 | if ( Created.IsBound(E)) { | |
786 | OE = TopoDS::Edge(Created(E)); | |
787 | } | |
788 | else if (MapSS.IsBound(E)) //seam edge | |
789 | OE = TopoDS::Edge(MapSS(E)); | |
790 | else { | |
791 | myBuilder.MakeEdge(OE); | |
792 | TopoDS_Vertex OV1,OV2; | |
793 | if ( MapSS.IsBound(V1)) { | |
794 | OV1 = TopoDS::Vertex(MapSS(V1)); | |
795 | } | |
796 | else { | |
797 | myBuilder.MakeVertex(OV1); | |
798 | myBuilder.UpdateVertex(OV1,P1,BRep_Tool::Tolerance(V1)); | |
799 | MapSS.Bind(V1,OV1); | |
800 | } | |
801 | if ( MapSS.IsBound(V2)) { | |
802 | OV2 = TopoDS::Vertex(MapSS(V2)); | |
803 | } | |
804 | else { | |
805 | myBuilder.MakeVertex(OV2); | |
806 | myBuilder.UpdateVertex(OV2,P2,BRep_Tool::Tolerance(V2)); | |
807 | MapSS.Bind(V2,OV2); | |
808 | } | |
809 | myBuilder.Add(OE,OV1.Oriented(V1.Orientation())); | |
810 | myBuilder.Add(OE,OV2.Oriented(V2.Orientation())); | |
811 | if (BRep_Tool::Degenerated(E)) { | |
812 | myBuilder.Degenerated(OE, Standard_True); | |
813 | /* | |
814 | #ifdef DEB | |
815 | gp_Pnt P1,P2; | |
816 | gp_Pnt2d P2d; | |
817 | P2d = C2d->Value(f); TheSurf->D0(P2d.X(),P2d.Y(),P1); | |
818 | P2d = C2d->Value(l); TheSurf->D0(P2d.X(),P2d.Y(),P2); | |
819 | Standard_Real Tol = BRep_Tool::Tolerance(V1); | |
820 | if (!P1.IsEqual(P2,Tol)) { | |
821 | cout <<"BRepOffset_Offset : E degenerated -> OE not degenerated"<<endl; | |
822 | } | |
823 | #endif | |
824 | */ | |
825 | } | |
826 | } | |
827 | if (VonDegen.Contains(V1) || VonDegen.Contains(V2)) | |
828 | { | |
829 | if (VonDegen.Contains(V1)) | |
830 | P2d1.SetY( vstart ); | |
831 | if (VonDegen.Contains(V2)) | |
832 | P2d2.SetY( vend ); | |
833 | C2d = new Geom2d_Line( P2d1, gp_Vec2d(P2d1, P2d2) ); | |
834 | f = 0.; l = P2d1.Distance( P2d2 ); | |
835 | if (MapSS.IsBound(E)) //seam edge | |
836 | { | |
837 | Handle(Geom2d_Curve) C2d_1 = BRep_Tool::CurveOnSurface(OE, myFace, f, l); | |
838 | if (E.Orientation() == TopAbs_FORWARD) | |
839 | UpdateEdge(OE,C2d,C2d_1,myFace,BRep_Tool::Tolerance(E)); | |
840 | else | |
841 | UpdateEdge(OE,C2d_1,C2d,myFace,BRep_Tool::Tolerance(E)); | |
842 | } | |
843 | else | |
844 | UpdateEdge(OE,C2d,myFace,BRep_Tool::Tolerance(E)); | |
845 | //myBuilder.Range(OE,f,l); | |
846 | myBuilder.Range(OE, myFace, f, l); | |
847 | if (!BRep_Tool::Degenerated(E) && TheSurf->IsUClosed()) | |
848 | { | |
849 | TopoDS_Shape aLocalShape = E.Reversed(); | |
850 | Handle(Geom2d_Curve) C2d_1 = | |
851 | BRep_Tool::CurveOnSurface(TopoDS::Edge(aLocalShape),CurFace,f,l); | |
852 | P2d1 = C2d_1->Value(BRep_Tool::Parameter(V1,E,CurFace)); | |
853 | P2d2 = C2d_1->Value(BRep_Tool::Parameter(V2,E,CurFace)); | |
854 | if (VonDegen.Contains(V1)) | |
855 | P2d1.SetY( vstart ); | |
856 | if (VonDegen.Contains(V2)) | |
857 | P2d2.SetY( vend ); | |
858 | C2d_1 = new Geom2d_Line( P2d1, gp_Vec2d(P2d1, P2d2) ); | |
859 | if ( E.Orientation() == TopAbs_FORWARD) | |
860 | UpdateEdge(OE,C2d,C2d_1,myFace,BRep_Tool::Tolerance(E)); | |
861 | else | |
862 | UpdateEdge(OE,C2d_1,C2d,myFace,BRep_Tool::Tolerance(E)); | |
863 | } | |
864 | /* | |
865 | if (!BRep_Tool::Degenerated(E)) | |
866 | { | |
867 | Handle(Geom_Line) theLine = new Geom_Line( P1, gp_Vec(P1, P2) ); | |
868 | myBuilder.UpdateEdge( OE, theLine, BRep_Tool::Tolerance(E) ); | |
869 | } | |
870 | */ | |
871 | } | |
872 | else | |
873 | { | |
874 | UpdateEdge(OE,C2d,myFace,BRep_Tool::Tolerance(E)); | |
875 | myBuilder.Range(OE,f,l); | |
876 | //ComputeCurve3d(OE,C2d,TheSurf,L,BRep_Tool::Tolerance(E)); | |
877 | } | |
878 | if (!BRep_Tool::Degenerated(OE)) | |
879 | ComputeCurve3d(OE,C2d,TheSurf,L,BRep_Tool::Tolerance(E)); | |
880 | MapSS.Bind(E,OE); | |
881 | } | |
882 | myBuilder.Add(OW, OE.Oriented(E.Orientation())); | |
883 | } | |
884 | myBuilder.Add(myFace, OW.Oriented(W.Orientation())); | |
885 | } | |
886 | ||
887 | myFace.Orientation(Face.Orientation()); | |
888 | ||
889 | BRepTools::Update(myFace); | |
890 | } | |
891 | ||
892 | ||
893 | //======================================================================= | |
894 | //function : Init | |
895 | //purpose : | |
896 | //======================================================================= | |
897 | ||
898 | void BRepOffset_Offset::Init(const TopoDS_Edge& Path, | |
899 | const TopoDS_Edge& Edge1, | |
900 | const TopoDS_Edge& Edge2, | |
901 | const Standard_Real Offset, | |
902 | const Standard_Boolean Polynomial, | |
903 | const Standard_Real Tol, | |
904 | const GeomAbs_Shape Conti) | |
905 | { | |
906 | TopoDS_Edge FirstEdge,LastEdge; | |
907 | Init(Path,Edge1,Edge2,Offset,FirstEdge,LastEdge,Polynomial,Tol,Conti); | |
908 | } | |
909 | ||
910 | ||
911 | //======================================================================= | |
912 | //function : Init | |
913 | //purpose : | |
914 | //======================================================================= | |
915 | ||
916 | void BRepOffset_Offset::Init(const TopoDS_Edge& Path, | |
917 | const TopoDS_Edge& Edge1, | |
918 | const TopoDS_Edge& Edge2, | |
919 | const Standard_Real Offset, | |
920 | const TopoDS_Edge& FirstEdge, | |
921 | const TopoDS_Edge& LastEdge, | |
922 | const Standard_Boolean Polynomial, | |
923 | const Standard_Real Tol, | |
924 | const GeomAbs_Shape Conti) | |
925 | { | |
926 | Standard_Boolean C1Denerated = Standard_False; | |
927 | Standard_Boolean C2Denerated = Standard_False; | |
928 | myStatus = BRepOffset_Good; | |
929 | myShape = Path; | |
930 | ||
931 | TopLoc_Location Loc; | |
932 | Standard_Real f[3],l[3]; | |
933 | ||
934 | Handle(Geom_Curve) CP = BRep_Tool::Curve(Path,Loc,f[0],l[0]); | |
935 | CP = new Geom_TrimmedCurve(CP,f[0], l[0]); | |
936 | CP->Transform(Loc.Transformation()); | |
937 | Handle(GeomAdaptor_HCurve) HCP = new GeomAdaptor_HCurve(CP); | |
938 | ||
939 | Handle(Geom_Curve) C1 = BRep_Tool::Curve(Edge1,Loc,f[1],l[1]); | |
940 | ||
941 | Handle(Adaptor3d_HCurve) HEdge1; | |
942 | Standard_Boolean C1is3D = Standard_True; | |
943 | if (C1.IsNull()) { | |
944 | C1is3D = Standard_False; | |
945 | Handle(Geom2d_Curve) C12d; | |
946 | Handle(Geom_Surface) S1; | |
947 | BRep_Tool::CurveOnSurface(Edge1,C12d,S1,Loc,f[1],l[1]); | |
948 | S1 = Handle(Geom_Surface)::DownCast(S1->Transformed(Loc.Transformation())); | |
949 | C12d = new Geom2d_TrimmedCurve(C12d,f[1],l[1]); | |
950 | Handle(GeomAdaptor_HSurface) HS1 = new GeomAdaptor_HSurface(S1); | |
951 | Handle(Geom2dAdaptor_HCurve) HC1 = new Geom2dAdaptor_HCurve(C12d); | |
952 | Adaptor3d_CurveOnSurface Cons(HC1,HS1); | |
953 | HEdge1 = new Adaptor3d_HCurveOnSurface(Cons); | |
954 | } | |
955 | else { | |
956 | C1 = new Geom_TrimmedCurve(C1, f[1], l[1]); | |
957 | C1->Transform(Loc.Transformation()); | |
958 | HEdge1 = new GeomAdaptor_HCurve(C1); | |
959 | GeomAdaptor_Curve AC1(C1); | |
960 | if ( AC1.GetType() == GeomAbs_Circle) { | |
961 | C1Denerated = (AC1.Circle().Radius() < Precision::Confusion()); | |
962 | } | |
963 | } | |
964 | ||
965 | Handle(Geom_Curve) C2 = BRep_Tool::Curve(Edge2,Loc,f[2],l[2]); | |
966 | ||
967 | Handle(Adaptor3d_HCurve) HEdge2; | |
968 | Standard_Boolean C2is3D = Standard_True; | |
969 | if (C2.IsNull()) { | |
970 | C2is3D = Standard_False; | |
971 | Handle(Geom2d_Curve) C12d; | |
972 | Handle(Geom_Surface) S1; | |
973 | BRep_Tool::CurveOnSurface(Edge2,C12d,S1,Loc,f[2],l[2]); | |
974 | S1 = Handle(Geom_Surface)::DownCast(S1->Transformed(Loc.Transformation())); | |
975 | C12d = new Geom2d_TrimmedCurve(C12d,f[2],l[2]); | |
976 | Handle(GeomAdaptor_HSurface) HS1 = new GeomAdaptor_HSurface(S1); | |
977 | Handle(Geom2dAdaptor_HCurve) HC1 = new Geom2dAdaptor_HCurve(C12d); | |
978 | Adaptor3d_CurveOnSurface Cons(HC1,HS1); | |
979 | HEdge2 = new Adaptor3d_HCurveOnSurface(Cons); | |
980 | } | |
981 | else { | |
982 | C2 = new Geom_TrimmedCurve(C2, f[2], l[2]); | |
983 | C2->Transform(Loc.Transformation()); | |
984 | HEdge2 = new GeomAdaptor_HCurve(C2); | |
985 | GeomAdaptor_Curve AC2(C2); | |
986 | if ( AC2.GetType() == GeomAbs_Circle) { | |
987 | C2Denerated = (AC2.Circle().Radius() < Precision::Confusion()); | |
988 | } | |
989 | } | |
990 | ||
991 | // Calcul du tuyau | |
992 | GeomFill_Pipe Pipe(HCP, HEdge1, HEdge2, Abs(Offset)); | |
993 | Pipe.Perform(Tol, Polynomial, Conti); | |
994 | Standard_Real ErrorPipe = Pipe.ErrorOnSurf(); | |
995 | ||
996 | Handle(Geom_Surface) S = Pipe.Surface(); | |
997 | Standard_Boolean ExchUV = Pipe.ExchangeUV(); | |
998 | Standard_Real f1,l1,f2,l2; | |
999 | S->Bounds(f1,l1,f2,l2); | |
1000 | ||
1001 | // Perform the face | |
1002 | Standard_Real PathTol = BRep_Tool::Tolerance(Path); | |
1003 | Standard_Real TheTol; | |
1004 | BRep_Builder myBuilder; | |
1005 | myBuilder.MakeFace(myFace); | |
1006 | TopLoc_Location Id; | |
1007 | myBuilder.UpdateFace(myFace,S,Id,PathTol); | |
1008 | ||
1009 | // update de Edge1. (Rem : has already a 3d curve) | |
1010 | Standard_Real U,U1,U2; | |
1011 | Handle(Geom2d_Curve) PC; | |
1012 | if ( ExchUV) { | |
1013 | PC = new Geom2d_Line(gp_Pnt2d(0,f2),gp_Dir2d(1,0)); | |
1014 | U1 = f1; | |
1015 | U2 = l1; | |
1016 | if (!C1is3D) C1 = S->VIso(f2); | |
1017 | } | |
1018 | else { | |
1019 | PC = new Geom2d_Line(gp_Pnt2d(f1,0),gp_Dir2d(0,1)); | |
1020 | U1 = f2; | |
1021 | U2 = l2; | |
1022 | if (!C1is3D) C1 = S->UIso(f1); | |
1023 | } | |
1024 | ||
1025 | Handle(Geom_Curve) Dummy; | |
1026 | if (!C1is3D) | |
1027 | UpdateEdge(Edge1,C1,Id,BRep_Tool::Tolerance(Edge1)); | |
1028 | else if ( C1Denerated) { | |
1029 | UpdateEdge(Edge1,Dummy,Id,BRep_Tool::Tolerance(Edge1)); | |
1030 | myBuilder.Degenerated(Edge1,Standard_True); | |
1031 | } | |
1032 | ||
1033 | TheTol = Max(PathTol, BRep_Tool::Tolerance(Edge1) + ErrorPipe); | |
1034 | UpdateEdge(Edge1, PC, myFace, TheTol); | |
1035 | ||
1036 | // mise a same range de la nouvelle pcurve. | |
1037 | if ( !C1is3D && !C1Denerated) | |
1038 | myBuilder.SameRange (Edge1,Standard_False); | |
1039 | if ( !C1is3D && !C1Denerated) | |
1040 | Range3d(Edge1,U1,U2); | |
1041 | myBuilder.Range (Edge1,myFace,U1,U2); | |
1042 | Range3d(Edge1,U1,U2); | |
1043 | myBuilder.Range (Edge1,myFace,U1,U2); | |
1044 | BRepLib::SameRange(Edge1); | |
1045 | ||
1046 | // mise a sameparameter pour les KPart | |
1047 | if (ErrorPipe == 0) { | |
1048 | TheTol = Max(TheTol, Tol); | |
1049 | myBuilder.SameParameter(Edge1,Standard_False); | |
1050 | BRepLib::SameParameter(Edge1, TheTol); | |
1051 | } | |
1052 | ||
1053 | // Update de edge2. (Rem : has already a 3d curve) | |
1054 | if (ExchUV) { | |
1055 | PC = new Geom2d_Line(gp_Pnt2d(0,l2),gp_Dir2d(1,0)); | |
1056 | U1 = f1; | |
1057 | U2 = l1; | |
1058 | if (!C2is3D) C2 = S->VIso(l2); | |
1059 | } | |
1060 | else { | |
1061 | PC = new Geom2d_Line(gp_Pnt2d(l1,0),gp_Dir2d(0,1)); | |
1062 | U1 = f2; | |
1063 | U2 = l2; | |
1064 | if (!C2is3D) C2 = S->UIso(l1); | |
1065 | } | |
1066 | ||
1067 | if (!C2is3D) | |
1068 | UpdateEdge(Edge2,C2,Id,BRep_Tool::Tolerance(Edge2)); | |
1069 | else if ( C2Denerated) { | |
1070 | UpdateEdge(Edge2,Dummy,Id,BRep_Tool::Tolerance(Edge2)); | |
1071 | myBuilder.Degenerated(Edge2,Standard_True); | |
1072 | } | |
1073 | ||
1074 | TheTol = Max(PathTol, BRep_Tool::Tolerance(Edge2) + ErrorPipe); | |
1075 | UpdateEdge(Edge2, PC, myFace, TheTol); | |
1076 | ||
1077 | // mise a same range de la nouvelle pcurve. | |
1078 | myBuilder.SameRange (Edge2,Standard_False); | |
1079 | if ( !C2is3D && !C2Denerated) Range3d(Edge2,U1,U2); | |
1080 | myBuilder.Range(Edge2,myFace,U1,U2); | |
1081 | BRepLib::SameRange(Edge2); | |
1082 | ||
1083 | // mise a sameparameter pour les KPart | |
1084 | if (ErrorPipe == 0) { | |
1085 | TheTol = Max(TheTol, Tol); | |
1086 | myBuilder.SameParameter(Edge2,Standard_False); | |
1087 | BRepLib::SameParameter(Edge2, TheTol); | |
1088 | } | |
1089 | ||
1090 | TopoDS_Edge Edge3, Edge4; | |
1091 | // eval edge3 | |
1092 | TopoDS_Vertex V1f,V1l,V2f,V2l; | |
1093 | TopExp::Vertices(Path,V1f,V1l); | |
1094 | Standard_Boolean IsClosed = ( V1f.IsSame(V1l)); | |
1095 | ||
1096 | TopExp::Vertices(Edge1,V1f,V1l); | |
1097 | TopExp::Vertices(Edge2,V2f,V2l); | |
1098 | ||
1099 | Standard_Boolean StartDegenerated = (V1f.IsSame(V2f)); | |
1100 | Standard_Boolean EndDegenerated = (V1l.IsSame(V2l)); | |
1101 | ||
1102 | Standard_Boolean E3rev = Standard_False; | |
1103 | Standard_Boolean E4rev = Standard_False; | |
1104 | ||
1105 | TopoDS_Vertex VVf,VVl; | |
1106 | if ( FirstEdge.IsNull()) { | |
1107 | myBuilder.MakeEdge(Edge3); | |
1108 | myBuilder.Add(Edge3,V1f.Oriented(TopAbs_FORWARD)); | |
1109 | myBuilder.Add(Edge3,V2f.Oriented(TopAbs_REVERSED)); | |
1110 | } | |
1111 | else { | |
1112 | TopoDS_Shape aLocalEdge = FirstEdge.Oriented(TopAbs_FORWARD); | |
1113 | Edge3 = TopoDS::Edge(aLocalEdge); | |
1114 | // Edge3 = TopoDS::Edge(FirstEdge.Oriented(TopAbs_FORWARD)); | |
1115 | TopExp::Vertices(Edge3,VVf,VVl); | |
1116 | #ifdef DEB | |
1117 | // si firstedge n est pas nul, il faut que les vertex soient partages | |
1118 | if ( !VVf.IsSame(V1f) && !VVf.IsSame(V2f) ) { | |
1119 | cout << "Attention Vertex non partages !!!!!!" << endl; | |
1120 | } | |
1121 | #endif | |
1122 | if ( !VVf.IsSame(V1f) && !VVf.IsSame(V2f) ) { | |
1123 | // On fait vraisemblablement des conneries !! | |
1124 | // On cree un autre edge, on appelle le Sewing apres. | |
1125 | myBuilder.MakeEdge(Edge3); | |
1126 | myBuilder.Add(Edge3,V1f.Oriented(TopAbs_FORWARD)); | |
1127 | myBuilder.Add(Edge3,V2f.Oriented(TopAbs_REVERSED)); | |
1128 | } | |
1129 | else if ( !VVf.IsSame(V1f)) { | |
1130 | Edge3.Reverse(); | |
1131 | E3rev = Standard_True; | |
1132 | } | |
1133 | } | |
1134 | ||
1135 | if ( IsClosed) | |
1136 | Edge4 = Edge3; | |
1137 | ||
1138 | Standard_Real TolApp = Precision::Approximation(); | |
1139 | ||
1140 | Handle(Geom2d_Line) L1,L2; | |
1141 | if ( IsClosed) { | |
1142 | if ( ExchUV) { | |
1143 | // rem : si ExchUv, il faut reverser le Wire. | |
1144 | // donc l'edge Forward dans la face sera E4 : d'ou L1 et L2 | |
1145 | L2 = new Geom2d_Line(gp_Pnt2d(f1,0),gp_Dir2d(0,1)); | |
1146 | L1 = new Geom2d_Line(gp_Pnt2d(l1,0),gp_Dir2d(0,1)); | |
1147 | U1 = f2; | |
1148 | U2 = l2; | |
1149 | } | |
1150 | else { | |
1151 | L1 = new Geom2d_Line(gp_Pnt2d(0,f2),gp_Dir2d(1,0)); | |
1152 | L2 = new Geom2d_Line(gp_Pnt2d(0,l2),gp_Dir2d(1,0)); | |
1153 | U1 = f1; | |
1154 | U2 = l1; | |
1155 | } | |
1156 | if ( E3rev) { | |
1157 | L1->Reverse(); L2->Reverse(); | |
1158 | U = -U1; | |
1159 | U1 = -U2; | |
1160 | U2 = U; | |
1161 | } | |
1162 | UpdateEdge(Edge3, L1, L2, myFace,PathTol); | |
1163 | myBuilder.Range(Edge3,myFace,U1,U2); | |
1164 | if (StartDegenerated) | |
1165 | myBuilder.Degenerated(Edge3,Standard_True); | |
1166 | else if (FirstEdge.IsNull()) // then the 3d curve has not been yet computed | |
1167 | ComputeCurve3d(Edge3,L1,S,Id,TolApp); | |
1168 | } | |
1169 | else { | |
1170 | if ( LastEdge.IsNull()) { | |
1171 | myBuilder.MakeEdge(Edge4); | |
1172 | myBuilder.Add(Edge4,V1l.Oriented(TopAbs_FORWARD)); | |
1173 | myBuilder.Add(Edge4,V2l.Oriented(TopAbs_REVERSED)); | |
1174 | } | |
1175 | else { | |
1176 | TopoDS_Shape aLocalEdge = LastEdge.Oriented(TopAbs_FORWARD); | |
1177 | Edge4 = TopoDS::Edge(aLocalEdge); | |
1178 | // Edge4 = TopoDS::Edge(LastEdge.Oriented(TopAbs_FORWARD)); | |
1179 | TopExp::Vertices(Edge4,VVf,VVl); | |
1180 | #ifdef DEB | |
1181 | // si lastedge n est pas nul, il faut que les vertex soient partages | |
1182 | if ( !VVf.IsSame(V1l) && !VVf.IsSame(V2l) ) { | |
1183 | cout << "Attention Vertex non partages !!!!!!" << endl; | |
1184 | } | |
1185 | #endif | |
1186 | if ( !VVf.IsSame(V1l) && !VVf.IsSame(V2l) ) { | |
1187 | // On fait vraisemblablement des conneries !! | |
1188 | // On cree un autre edge, on appelle le Sewing apres. | |
1189 | myBuilder.MakeEdge(Edge4); | |
1190 | myBuilder.Add(Edge4,V1l.Oriented(TopAbs_FORWARD)); | |
1191 | myBuilder.Add(Edge4,V2l.Oriented(TopAbs_REVERSED)); | |
1192 | } | |
1193 | else if ( !VVf.IsSame(V1l)) { | |
1194 | Edge4.Reverse(); | |
1195 | E4rev = Standard_True; | |
1196 | } | |
1197 | } | |
1198 | ||
1199 | if (ExchUV) { | |
1200 | L1 = new Geom2d_Line(gp_Pnt2d(f1,0),gp_Dir2d(0,1)); | |
1201 | U1 = f2; | |
1202 | U2 = l2; | |
1203 | } | |
1204 | else { | |
1205 | L1 = new Geom2d_Line(gp_Pnt2d(0,f2),gp_Dir2d(1,0)); | |
1206 | U1 = f1; | |
1207 | U2 = l1; | |
1208 | } | |
1209 | if ( E3rev) { | |
1210 | L1->Reverse(); | |
1211 | U = -U1; | |
1212 | U1 = -U2; | |
1213 | U2 = U; | |
1214 | } | |
1215 | UpdateEdge(Edge3,L1,myFace,PathTol); | |
1216 | myBuilder.Range(Edge3,myFace,U1,U2); | |
1217 | if (StartDegenerated) | |
1218 | myBuilder.Degenerated(Edge3,Standard_True); | |
1219 | else if (FirstEdge.IsNull()) // then the 3d curve has not been yet computed | |
1220 | ComputeCurve3d(Edge3,L1,S,Id,TolApp); | |
1221 | ||
1222 | if (ExchUV) { | |
1223 | L2 = new Geom2d_Line(gp_Pnt2d(l1,0),gp_Dir2d(0,1)); | |
1224 | U1 = f2; | |
1225 | U2 = l2; | |
1226 | } | |
1227 | else { | |
1228 | L2 = new Geom2d_Line(gp_Pnt2d(0,l2),gp_Dir2d(1,0)); | |
1229 | U1 = f1; | |
1230 | U2 = l1; | |
1231 | } | |
1232 | if ( E4rev) { | |
1233 | L2->Reverse(); | |
1234 | U = -U1; | |
1235 | U1 = -U2; | |
1236 | U2 = U; | |
1237 | } | |
1238 | UpdateEdge(Edge4,L2 ,myFace,PathTol); | |
1239 | myBuilder.Range(Edge4,myFace,U1,U2); | |
1240 | if (EndDegenerated) | |
1241 | myBuilder.Degenerated(Edge4,Standard_True); | |
1242 | else if (LastEdge.IsNull()) // then the 3d curve has not been yet computed | |
1243 | ComputeCurve3d(Edge4,L2,S,Id,TolApp); | |
1244 | } | |
1245 | ||
1246 | // SameParameter ?? | |
1247 | if ( !FirstEdge.IsNull() && !StartDegenerated) { | |
1248 | BRepLib::BuildCurve3d (Edge3,PathTol); | |
1249 | myBuilder.SameRange (Edge3,Standard_False); | |
1250 | myBuilder.SameParameter(Edge3,Standard_False); | |
1251 | BRepLib::SameParameter (Edge3, Tol); | |
1252 | } | |
1253 | if ( !LastEdge.IsNull() && !EndDegenerated) { | |
1254 | BRepLib::BuildCurve3d (Edge4,PathTol); | |
1255 | myBuilder.SameRange (Edge4,Standard_False); | |
1256 | myBuilder.SameParameter(Edge4,Standard_False); | |
1257 | BRepLib::SameParameter (Edge4, Tol); | |
1258 | } | |
1259 | ||
1260 | TopoDS_Wire W; | |
1261 | myBuilder.MakeWire(W); | |
1262 | ||
1263 | myBuilder.Add(W, Edge1.Oriented(TopAbs_REVERSED)); | |
1264 | myBuilder.Add(W, Edge2.Oriented(TopAbs_FORWARD)); | |
1265 | myBuilder.Add(W, Edge4.Reversed()); | |
1266 | myBuilder.Add(W, Edge3); | |
1267 | ||
1268 | if (ExchUV) { | |
1269 | W.Reverse(); | |
1270 | } | |
1271 | ||
1272 | myBuilder.Add(myFace, W); | |
1273 | if (ExchUV) myFace.Reverse(); | |
1274 | ||
1275 | BRepTools::Update(myFace); | |
1276 | ||
1277 | if ( Edge1.Orientation() == TopAbs_REVERSED) | |
1278 | myFace.Reverse(); | |
1279 | ||
1280 | } | |
1281 | ||
1282 | ||
1283 | //======================================================================= | |
1284 | //function : Init | |
1285 | //purpose : | |
1286 | //======================================================================= | |
1287 | ||
1288 | void BRepOffset_Offset::Init(const TopoDS_Vertex& Vertex, | |
1289 | const TopTools_ListOfShape& LEdge, | |
1290 | const Standard_Real Offset, | |
1291 | const Standard_Boolean Polynomial, | |
1292 | const Standard_Real TolApp, | |
1293 | const GeomAbs_Shape Conti) | |
1294 | { | |
1295 | myStatus = BRepOffset_Good; | |
1296 | myShape = Vertex; | |
1297 | ||
1298 | // evaluate the Ax3 of the Sphere | |
1299 | // find 3 different vertices in LEdge | |
1300 | TopTools_ListIteratorOfListOfShape it; | |
1301 | gp_Pnt P, P1, P2, P3; | |
1302 | TopoDS_Vertex V1, V2, V3, V4; | |
1303 | ||
1304 | ||
1305 | #ifdef DEB | |
1306 | char* name = new char[100]; | |
1307 | if (Affich) { | |
1308 | NbOFFSET++; | |
1309 | ||
1310 | sprintf(name,"VOnSph_%d",NbOFFSET); | |
1311 | #ifdef DRAW | |
1312 | DBRep::Set(name, Vertex); | |
1313 | #endif | |
1314 | Standard_Integer NbEdges = 1; | |
1315 | for (it.Initialize(LEdge); it.More(); it.Next()) { | |
7fd59977 | 1316 | sprintf(name,"EOnSph_%d_%d",NbOFFSET,NbEdges++); |
1317 | #ifdef DRAW | |
1318 | DBRep::Set(name, CurE); | |
1319 | #endif | |
1320 | } | |
1321 | ||
1322 | } | |
1323 | #endif | |
1324 | ||
1325 | ||
1326 | it.Initialize(LEdge); | |
1327 | TopExp::Vertices(TopoDS::Edge(it.Value()), V1, V2); | |
1328 | P1 = BRep_Tool::Pnt(V1); | |
1329 | P2 = BRep_Tool::Pnt(V2); | |
1330 | ||
1331 | if ( !it.More()) { | |
1332 | Standard_ConstructionError::Raise("BRepOffset_Sphere"); | |
1333 | } | |
1334 | it.Next(); | |
1335 | TopExp::Vertices(TopoDS::Edge(it.Value()), V3, V4); | |
1336 | ||
1337 | P3 = BRep_Tool::Pnt(V3); | |
1338 | Standard_Real eps = 1.e-8; | |
1339 | if ( P1.Distance(P3) < eps || P2.Distance(P3) < eps) | |
1340 | P3 = BRep_Tool::Pnt(V4); | |
1341 | ||
1342 | P = BRep_Tool::Pnt(Vertex); | |
1343 | ||
1344 | gp_Vec X = gp_Vec(P1,P2) ^ gp_Vec(P1,P3); | |
1345 | if ( X * gp_Vec(P1,P) < 0.) X.Reverse(); | |
1346 | ||
1347 | gp_Ax3 Axis( P, gp_Dir(gp_Vec(P1,P2)), gp_Dir(X)); | |
1348 | Handle(Geom_Surface) S | |
1349 | = new Geom_SphericalSurface( Axis, Abs(Offset)); | |
1350 | ||
1351 | Standard_Real f, l, Tol = BRep_Tool::Tolerance(Vertex); | |
1352 | ||
1353 | TopLoc_Location Loc; | |
1354 | BRep_Builder myBuilder; | |
1355 | myBuilder.MakeFace(myFace); | |
1356 | Handle(Geom_Surface) SS = S; | |
1357 | ||
1358 | // En polynomial, calcul de la surface par F(u,v). | |
1359 | // Pas de changement de parametre, donc ProjLib sur la Sphere | |
1360 | // reste OK. | |
1361 | if (Polynomial) { | |
1362 | GeomConvert_ApproxSurface Approx(S,TolApp,Conti,Conti,10,10,10,1); | |
1363 | if (Approx.IsDone()) { | |
1364 | SS = Approx.Surface(); | |
1365 | } | |
1366 | } | |
1367 | ||
1368 | myBuilder.UpdateFace(myFace, SS, Loc, Tol); | |
1369 | ||
1370 | TopoDS_Wire W; | |
1371 | myBuilder.MakeWire(W); | |
1372 | ||
1373 | #ifdef DRAW | |
1374 | // POP pour NT | |
1375 | // char name[100]; | |
1376 | if (Affich) { | |
1377 | sprintf(name,"SPHERE_%d",NbOFFSET); | |
1378 | DrawTrSurf::Set(name, S); | |
1379 | } | |
1380 | Standard_Integer CO = 1; | |
1381 | #endif | |
1382 | ||
1383 | for ( it.Initialize(LEdge); it.More(); it.Next()) { | |
1384 | TopoDS_Edge E = TopoDS::Edge(it.Value()); | |
1385 | ||
1386 | Handle(Geom_Curve) C = BRep_Tool::Curve(E,Loc,f,l); | |
1387 | if ( C.IsNull()) { | |
1388 | BRepLib::BuildCurve3d(E,BRep_Tool::Tolerance(E)); | |
1389 | C = BRep_Tool::Curve(E,Loc,f,l); | |
1390 | } | |
1391 | C = new Geom_TrimmedCurve(C, f, l); | |
1392 | C->Transform(Loc.Transformation()); | |
1393 | ||
1394 | #ifdef DRAW | |
1395 | if ( Affich) { | |
1396 | sprintf(name,"CURVE_%d_%d",NbOFFSET,CO); | |
1397 | DrawTrSurf::Set(name, C); | |
1398 | CO++; | |
1399 | } | |
1400 | #endif | |
1401 | ||
1402 | Handle(Geom2d_Curve) PCurve = GeomProjLib::Curve2d(C, S); | |
1403 | // check if the first point of PCurve in is the canonical boundaries | |
1404 | // of the sphere. Else move it. | |
1405 | // the transformation is : U` = U + PI + 2 k PI | |
1406 | // V` = +/- PI + 2 k` PI | |
1407 | gp_Pnt2d P2d = PCurve->Value(f); | |
1408 | Standard_Boolean IsToAdjust = Standard_False; | |
c6541a0c | 1409 | if ( P2d.Y() < -M_PI/2.) { |
7fd59977 | 1410 | IsToAdjust = Standard_True; |
c6541a0c | 1411 | PCurve->Mirror(gp_Ax2d(gp_Pnt2d(0.,-M_PI/2.),gp::DX2d())); |
7fd59977 | 1412 | } |
c6541a0c | 1413 | else if ( P2d.Y() > M_PI/2.) { |
7fd59977 | 1414 | IsToAdjust = Standard_True; |
c6541a0c | 1415 | PCurve->Mirror(gp_Ax2d(gp_Pnt2d(0., M_PI/2.),gp::DX2d())); |
7fd59977 | 1416 | } |
1417 | if ( IsToAdjust) { | |
1418 | // set the u firstpoint in [0,2*pi] | |
c6541a0c D |
1419 | gp_Vec2d Tr( M_PI, 0.); |
1420 | if ( P2d.X() > M_PI) Tr.Reverse(); | |
7fd59977 | 1421 | PCurve->Translate(Tr); |
1422 | } | |
1423 | ||
1424 | UpdateEdge(E, PCurve, myFace, Tol); | |
1425 | myBuilder.Range(E, myFace, f, l); | |
1426 | myBuilder.Add(W, E); | |
1427 | } | |
1428 | if ( Offset < 0.) { | |
1429 | myBuilder.Add(myFace, W.Oriented(TopAbs_REVERSED)); | |
1430 | myFace.Reverse(); | |
1431 | } | |
1432 | else { | |
1433 | myBuilder.Add(myFace, W); | |
1434 | } | |
1435 | ||
1436 | BRepTools::Update(myFace); | |
1437 | } | |
1438 | ||
1439 | ||
1440 | //======================================================================= | |
1441 | //function : Init | |
1442 | //purpose : | |
1443 | //======================================================================= | |
1444 | ||
1445 | void BRepOffset_Offset::Init(const TopoDS_Edge& Edge, | |
1446 | const Standard_Real Offset) | |
1447 | { | |
1448 | myShape = Edge; | |
1449 | Standard_Real myOffset = Abs(Offset); | |
1450 | ||
1451 | Standard_Real f,l; | |
1452 | TopLoc_Location Loc; | |
1453 | ||
1454 | Handle(Geom_Curve) CP = BRep_Tool::Curve(Edge,Loc,f,l); | |
1455 | CP = new Geom_TrimmedCurve(CP,f,l); | |
1456 | CP->Transform(Loc.Transformation()); | |
1457 | ||
1458 | GeomFill_Pipe Pipe(CP,myOffset); | |
1459 | Pipe.Perform(); | |
1460 | ||
1c72dff6 | 1461 | BRepLib_MakeFace MF(Pipe.Surface(), Precision::Confusion()); |
7fd59977 | 1462 | myFace = MF.Face(); |
1463 | ||
1464 | if ( Offset < 0.) myFace.Reverse(); | |
1465 | } | |
1466 | ||
1467 | ||
1468 | //======================================================================= | |
1469 | //function : Face | |
1470 | //purpose : | |
1471 | //======================================================================= | |
1472 | ||
1473 | const TopoDS_Face& BRepOffset_Offset::Face() const | |
1474 | { | |
1475 | return myFace; | |
1476 | } | |
1477 | ||
1478 | ||
1479 | //======================================================================= | |
1480 | //function : Generated | |
1481 | //purpose : | |
1482 | //======================================================================= | |
1483 | ||
1484 | TopoDS_Shape BRepOffset_Offset::Generated(const TopoDS_Shape& Shape) const | |
1485 | { | |
1486 | TopoDS_Shape aShape; | |
1487 | ||
1488 | switch ( myShape.ShapeType()) { | |
1489 | ||
1490 | case TopAbs_FACE: | |
1491 | { | |
1492 | TopExp_Explorer exp (myShape.Oriented(TopAbs_FORWARD), TopAbs_EDGE); | |
1493 | TopExp_Explorer expo(myFace .Oriented(TopAbs_FORWARD), TopAbs_EDGE); | |
1494 | for ( ; exp.More() && expo.More(); exp.Next(), expo.Next()) { | |
1495 | if ( Shape.IsSame(exp.Current())) { | |
1496 | if ( myShape.Orientation() == TopAbs_REVERSED) | |
1497 | aShape = expo.Current().Reversed(); | |
1498 | else | |
1499 | aShape = expo.Current(); | |
1500 | } | |
1501 | } | |
1502 | } | |
1503 | break; | |
1504 | ||
1505 | case TopAbs_EDGE: | |
1506 | // have generate a pipe. | |
1507 | { | |
1508 | TopoDS_Vertex V1, V2; | |
1509 | TopExp::Vertices(TopoDS::Edge(myShape), V1, V2); | |
1510 | ||
1511 | TopExp_Explorer expf(myFace .Oriented(TopAbs_FORWARD), TopAbs_WIRE); | |
1512 | TopExp_Explorer expo(expf.Current().Oriented(TopAbs_FORWARD), | |
1513 | TopAbs_EDGE); | |
1514 | expo.Next(); | |
1515 | expo.Next(); | |
1516 | ||
1517 | if ( V2.IsSame(Shape)) { | |
1518 | if ( expf.Current().Orientation() == TopAbs_REVERSED) | |
1519 | aShape = expo.Current().Reversed(); | |
1520 | else | |
1521 | aShape = expo.Current(); | |
1522 | } | |
1523 | else { | |
1524 | expo.Next(); | |
1525 | if ( expf.Current().Orientation() == TopAbs_REVERSED) | |
1526 | aShape = expo.Current().Reversed(); | |
1527 | else | |
1528 | aShape = expo.Current(); | |
1529 | } | |
1530 | if ( myFace.Orientation() == TopAbs_REVERSED) | |
1531 | aShape.Reverse(); | |
1532 | } | |
1533 | break; | |
7fd59977 | 1534 | default: |
1535 | break; | |
7fd59977 | 1536 | } |
1537 | ||
1538 | return aShape; | |
1539 | } | |
1540 | ||
1541 | ||
1542 | //======================================================================= | |
1543 | //function : Status | |
1544 | //purpose : | |
1545 | //======================================================================= | |
1546 | ||
1547 | BRepOffset_Status BRepOffset_Offset::Status() const | |
1548 | { | |
1549 | return myStatus; | |
1550 | } | |
1551 | ||
1552 | ||
1553 |