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b311480e | 1 | // Created on: 1996-12-05 |
2 | // Created by: Flore Lantheaume/Odile Olivier | |
3 | // Copyright (c) 1996-1999 Matra Datavision | |
973c2be1 | 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
b311480e | 5 | // |
973c2be1 | 6 | // This file is part of Open CASCADE Technology software library. |
b311480e | 7 | // |
d5f74e42 | 8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published | |
973c2be1 | 10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT | |
12 | // distribution for complete text of the license and disclaimer of any warranty. | |
b311480e | 13 | // |
973c2be1 | 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. | |
7fd59977 | 16 | |
7fd59977 | 17 | |
42cf5bc1 | 18 | #include <AIS.hxx> |
19 | #include <AIS_FixRelation.hxx> | |
7fd59977 | 20 | #include <AIS_Shape.hxx> |
7fd59977 | 21 | #include <BRep_Tool.hxx> |
22 | #include <BRepAdaptor_Curve.hxx> | |
42cf5bc1 | 23 | #include <DsgPrs_FixPresentation.hxx> |
24 | #include <ElCLib.hxx> | |
25 | #include <ElSLib.hxx> | |
26 | #include <Geom_Circle.hxx> | |
7fd59977 | 27 | #include <Geom_Curve.hxx> |
28 | #include <Geom_Line.hxx> | |
7fd59977 | 29 | #include <Geom_Plane.hxx> |
42cf5bc1 | 30 | #include <Geom_Transformation.hxx> |
31 | #include <gp_Ax1.hxx> | |
32 | #include <gp_Circ.hxx> | |
33 | #include <gp_Dir.hxx> | |
34 | #include <gp_Lin.hxx> | |
7fd59977 | 35 | #include <gp_Pnt.hxx> |
36 | #include <gp_Vec.hxx> | |
7fd59977 | 37 | #include <gp_XYZ.hxx> |
7fd59977 | 38 | #include <Precision.hxx> |
42cf5bc1 | 39 | #include <Prs3d_Presentation.hxx> |
40 | #include <Prs3d_Projector.hxx> | |
41 | #include <Select3D_SensitiveSegment.hxx> | |
42 | #include <SelectMgr_EntityOwner.hxx> | |
43 | #include <SelectMgr_Selection.hxx> | |
7fd59977 | 44 | #include <Standard_DomainError.hxx> |
42cf5bc1 | 45 | #include <Standard_NotImplemented.hxx> |
46 | #include <Standard_Type.hxx> | |
47 | #include <TColStd_ListIteratorOfListOfTransient.hxx> | |
48 | #include <TopAbs_ShapeEnum.hxx> | |
49 | #include <TopExp.hxx> | |
50 | #include <TopLoc_Location.hxx> | |
51 | #include <TopoDS.hxx> | |
52 | #include <TopoDS_Edge.hxx> | |
53 | #include <TopoDS_Shape.hxx> | |
54 | #include <TopoDS_Vertex.hxx> | |
55 | #include <TopoDS_Wire.hxx> | |
56 | #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx> | |
57 | #include <TopTools_IndexedMapOfShape.hxx> | |
58 | #include <TopTools_ListIteratorOfListOfShape.hxx> | |
7fd59977 | 59 | |
92efcf78 | 60 | IMPLEMENT_STANDARD_RTTIEXT(AIS_FixRelation,AIS_Relation) |
61 | ||
7fd59977 | 62 | static Standard_Boolean InDomain(const Standard_Real fpar, |
63 | const Standard_Real lpar, | |
64 | const Standard_Real para) | |
65 | { | |
66 | if (fpar >= 0.) { | |
67 | return ((para >= fpar) && (para <= lpar)); | |
68 | } | |
c6541a0c | 69 | if (para >= (fpar+2*M_PI)) return Standard_True; |
7fd59977 | 70 | if (para <= lpar) return Standard_True; |
71 | return Standard_False; | |
72 | } | |
73 | ||
74 | //======================================================================= | |
75 | //function : Constructor | |
76 | //purpose : vertex Fix Relation | |
77 | //======================================================================= | |
78 | ||
79 | AIS_FixRelation::AIS_FixRelation(const TopoDS_Shape& aShape, | |
80 | const Handle(Geom_Plane)& aPlane, | |
81 | const TopoDS_Wire& aWire) | |
82 | :AIS_Relation(), | |
258ff83b | 83 | myWire(aWire) |
7fd59977 | 84 | { |
85 | myFShape = aShape; | |
86 | myPlane = aPlane; | |
87 | myAutomaticPosition = Standard_True; | |
88 | myArrowSize = 5.; | |
89 | } | |
90 | ||
91 | //======================================================================= | |
92 | //function : Constructor | |
93 | //purpose : vertex Fix Relation | |
94 | //======================================================================= | |
95 | ||
96 | AIS_FixRelation::AIS_FixRelation(const TopoDS_Shape& aShape, | |
97 | const Handle(Geom_Plane)& aPlane, | |
98 | const TopoDS_Wire& aWire, | |
99 | const gp_Pnt& aPosition, | |
100 | const Standard_Real anArrowSize) | |
101 | :AIS_Relation(), | |
258ff83b | 102 | myWire(aWire) |
7fd59977 | 103 | { |
104 | myFShape = aShape; | |
105 | myPlane = aPlane; | |
106 | myPosition = aPosition; | |
7fd59977 | 107 | SetArrowSize( anArrowSize ); |
7fd59977 | 108 | myAutomaticPosition = Standard_False; |
109 | } | |
110 | ||
111 | ||
112 | //======================================================================= | |
113 | //function : Constructor | |
114 | //purpose : edge (line or circle) Fix Relation | |
115 | //======================================================================= | |
116 | ||
117 | AIS_FixRelation::AIS_FixRelation(const TopoDS_Shape& aShape, | |
258ff83b | 118 | const Handle(Geom_Plane)& aPlane) |
7fd59977 | 119 | { |
120 | myFShape = aShape; | |
121 | myPlane = aPlane; | |
122 | myAutomaticPosition = Standard_True; | |
123 | myArrowSize = 5.; | |
124 | } | |
125 | ||
126 | //======================================================================= | |
127 | //function : Constructor | |
128 | //purpose : edge (line or circle) Fix Relation | |
129 | //======================================================================= | |
130 | ||
131 | AIS_FixRelation::AIS_FixRelation( | |
132 | const TopoDS_Shape& aShape, | |
133 | const Handle(Geom_Plane)& aPlane, | |
134 | const gp_Pnt& aPosition, | |
258ff83b | 135 | const Standard_Real anArrowSize) |
7fd59977 | 136 | { |
137 | myFShape = aShape; | |
138 | myPlane = aPlane; | |
139 | myPosition = aPosition; | |
7fd59977 | 140 | SetArrowSize( anArrowSize ); |
7fd59977 | 141 | myAutomaticPosition = Standard_False; |
142 | } | |
143 | ||
144 | //======================================================================= | |
145 | //function : Wire | |
146 | //purpose : | |
147 | //======================================================================= | |
148 | ||
149 | TopoDS_Wire AIS_FixRelation::Wire() | |
150 | { | |
151 | return myWire; | |
152 | } | |
153 | ||
154 | //======================================================================= | |
155 | //function : SetWire | |
156 | //purpose : | |
157 | //======================================================================= | |
158 | ||
159 | void AIS_FixRelation::SetWire(const TopoDS_Wire& aWire) | |
160 | { | |
161 | myWire = aWire; | |
162 | } | |
163 | ||
164 | ||
165 | //======================================================================= | |
166 | //function : Compute | |
167 | //purpose : | |
168 | //======================================================================= | |
169 | ||
170 | void AIS_FixRelation::Compute(const Handle(PrsMgr_PresentationManager3d)&, | |
171 | const Handle(Prs3d_Presentation)& aPresentation, | |
172 | const Standard_Integer) | |
173 | { | |
81bba717 | 174 | // Calculate position of the symbol and |
175 | // point of attach of the segment on the shape | |
7fd59977 | 176 | gp_Pnt curpos; |
177 | if (myFShape.ShapeType() == TopAbs_VERTEX) | |
178 | ComputeVertex(TopoDS::Vertex(myFShape), curpos); | |
179 | else if (myFShape.ShapeType() == TopAbs_EDGE) | |
180 | ComputeEdge(TopoDS::Edge(myFShape), curpos); | |
181 | ||
182 | const gp_Dir& nor = myPlane->Axis().Direction(); | |
183 | ||
184 | ||
81bba717 | 185 | // calculate presentation |
186 | // definition of the symbol size | |
7fd59977 | 187 | if( !myArrowSizeIsDefined ) |
7fd59977 | 188 | myArrowSize = 5.; |
189 | ||
81bba717 | 190 | //creation of the presentation |
7fd59977 | 191 | DsgPrs_FixPresentation::Add(aPresentation, |
192 | myDrawer, | |
193 | myPntAttach, | |
194 | curpos, | |
195 | nor, | |
196 | myArrowSize); | |
197 | } | |
198 | ||
199 | //======================================================================= | |
200 | //function : Compute | |
201 | //purpose : to avoid warning | |
202 | //======================================================================= | |
203 | ||
204 | void AIS_FixRelation::Compute(const Handle(Prs3d_Projector)& aProjector, | |
205 | const Handle(Prs3d_Presentation)& aPresentation) | |
206 | { | |
207 | // Standard_NotImplemented::Raise("AIS_FixRelation::Compute(const Handle(Prs3d_Projector)&,const Handle(Prs3d_Presentation)&)"); | |
208 | PrsMgr_PresentableObject::Compute( aProjector , aPresentation ) ; | |
209 | } | |
210 | ||
7fd59977 | 211 | //======================================================================= |
212 | //function : Compute | |
213 | //purpose : | |
214 | //======================================================================= | |
215 | ||
857ffd5e | 216 | void AIS_FixRelation::Compute(const Handle(Prs3d_Projector)& aProjector, |
217 | const Handle(Geom_Transformation)& aTransformation, | |
218 | const Handle(Prs3d_Presentation)& aPresentation) | |
7fd59977 | 219 | { |
857ffd5e | 220 | // Standard_NotImplemented::Raise("AIS_FixRelation::Compute(const Handle(Prs3d_Projector)&, const Handle(Geom_Transformation)&, const Handle(Prs3d_Presentation)&)"); |
7fd59977 | 221 | PrsMgr_PresentableObject::Compute( aProjector , aTransformation , aPresentation ) ; |
222 | } | |
223 | ||
224 | //======================================================================= | |
225 | //function : ComputeSelection | |
226 | //purpose : | |
227 | //======================================================================= | |
228 | ||
229 | void AIS_FixRelation::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection, | |
230 | const Standard_Integer) | |
231 | { | |
232 | Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7); | |
233 | ||
81bba717 | 234 | // creation of segment sensible for the linked segment |
235 | // of the shape fixed to symbol 'Fix' | |
7fd59977 | 236 | Handle(Select3D_SensitiveSegment) seg; |
237 | seg = new Select3D_SensitiveSegment(own, | |
238 | myPntAttach, | |
239 | myPosition); | |
240 | aSelection->Add(seg); | |
241 | ||
81bba717 | 242 | // Creation of the sensible zone of symbol 'Fix' |
7fd59977 | 243 | gp_Dir norm = myPlane->Axis().Direction(); |
244 | ||
245 | gp_Vec dirac(myPntAttach,myPosition); | |
246 | dirac.Normalize(); | |
247 | gp_Vec norac = dirac.Crossed(gp_Vec(norm)); | |
248 | gp_Ax1 ax(myPosition, norm); | |
c6541a0c | 249 | norac.Rotate(ax, M_PI/8); |
7fd59977 | 250 | |
251 | norac*=(myArrowSize/2); | |
252 | gp_Pnt P1 = myPosition.Translated(norac); | |
253 | gp_Pnt P2 = myPosition.Translated(-norac); | |
254 | seg = new Select3D_SensitiveSegment(own, | |
255 | P1, | |
256 | P2); | |
257 | aSelection->Add(seg); | |
258 | ||
259 | norac*=0.8; | |
260 | P1 = myPosition.Translated(norac); | |
261 | P2 = myPosition.Translated(-norac); | |
262 | dirac*=(myArrowSize/2); | |
263 | gp_Pnt PF(P1.XYZ()); | |
264 | gp_Pnt PL = PF.Translated(dirac); | |
265 | PL.Translate(norac); | |
266 | seg = new Select3D_SensitiveSegment(own, | |
267 | PF, | |
268 | PL); | |
269 | aSelection->Add(seg); | |
270 | ||
271 | ||
272 | PF.SetXYZ(P2.XYZ()); | |
273 | PL = PF.Translated(dirac); | |
274 | PL.Translate(norac); | |
275 | seg = new Select3D_SensitiveSegment(own, | |
276 | PF, | |
277 | PL); | |
278 | aSelection->Add(seg); | |
279 | ||
280 | PF.SetXYZ( (P1.XYZ() + P2.XYZ()) /2 ); | |
281 | PL = PF.Translated(dirac); | |
282 | PL.Translate(norac); | |
283 | seg = new Select3D_SensitiveSegment(own, | |
284 | PF, | |
285 | PL); | |
286 | } | |
287 | ||
288 | //======================================================================= | |
289 | //function : ComputeVertex | |
290 | //purpose : computes myPntAttach and the position of the presentation | |
291 | // when you fix a vertex | |
292 | //======================================================================= | |
293 | ||
294 | void AIS_FixRelation::ComputeVertex(const TopoDS_Vertex& /*FixVertex*/, | |
295 | gp_Pnt& curpos) | |
296 | { | |
297 | myPntAttach = BRep_Tool::Pnt(TopoDS::Vertex(myFShape)); | |
298 | curpos = myPosition; | |
299 | if (myAutomaticPosition) { | |
300 | gp_Pln pln(myPlane->Pln()); | |
301 | gp_Dir dir(pln.XAxis().Direction()); | |
302 | gp_Vec transvec = gp_Vec(dir)*myArrowSize; | |
303 | curpos = myPntAttach.Translated(transvec);; | |
304 | myPosition = curpos; | |
305 | myAutomaticPosition = Standard_True; | |
306 | } | |
307 | } | |
308 | ||
309 | //======================================================================= | |
310 | //function : ComputePosition | |
311 | //purpose : | |
312 | //======================================================================= | |
313 | ||
314 | gp_Pnt AIS_FixRelation::ComputePosition(const Handle(Geom_Curve)& curv1, | |
315 | const Handle(Geom_Curve)& curv2, | |
316 | const gp_Pnt& firstp1, | |
317 | const gp_Pnt& lastp1, | |
318 | const gp_Pnt& firstp2, | |
319 | const gp_Pnt& lastp2) const | |
320 | { | |
321 | //--------------------------------------------------------- | |
81bba717 | 322 | // calculate the point of attach |
7fd59977 | 323 | //--------------------------------------------------------- |
324 | gp_Pnt curpos; | |
325 | ||
326 | if (curv1->IsInstance(STANDARD_TYPE(Geom_Circle)) || curv2->IsInstance(STANDARD_TYPE(Geom_Circle))) { | |
327 | Handle(Geom_Circle) gcirc = Handle(Geom_Circle)::DownCast(curv1); | |
328 | if (gcirc.IsNull()) gcirc = Handle(Geom_Circle)::DownCast(curv2); | |
329 | gp_Dir dir( gcirc->Location().XYZ() + myPntAttach.XYZ() ); | |
330 | gp_Vec transvec = gp_Vec(dir)*myArrowSize; | |
331 | curpos = myPntAttach.Translated(transvec); | |
332 | } | |
333 | ||
334 | else { | |
335 | gp_Vec vec1(firstp1,lastp1); | |
336 | gp_Vec vec2(firstp2,lastp2); | |
337 | ||
338 | if (!vec1.IsParallel(vec2, Precision::Angular()) ) { | |
339 | gp_Dir dir; | |
340 | Standard_Real conf =Precision::Confusion(); | |
341 | if (lastp1.IsEqual(firstp2,conf) || firstp1.IsEqual(lastp2,conf)) dir.SetXYZ(vec1.XYZ() - vec2.XYZ()); | |
342 | else dir.SetXYZ(vec1.XYZ() + vec2.XYZ()); | |
343 | gp_Vec transvec = gp_Vec(dir)*myArrowSize; | |
344 | curpos = myPntAttach.Translated(transvec); | |
345 | } | |
346 | else { | |
347 | gp_Vec crossvec = vec1.Crossed(vec2); | |
348 | vec1.Cross(crossvec); | |
349 | gp_Dir dir(vec1); | |
350 | curpos = myPntAttach.Translated(gp_Vec(dir)*myArrowSize); | |
351 | } | |
352 | } | |
353 | ||
354 | return curpos; | |
355 | } | |
356 | ||
357 | //======================================================================= | |
358 | //function : ComputePosition | |
359 | //purpose : Computes the position of the "fix dimension" when the | |
360 | // fixed object is a vertex which is set at the intersection | |
361 | // of two curves. | |
362 | // The "dimension" is in the "middle" of the two edges. | |
363 | //======================================================================= | |
364 | ||
365 | gp_Pnt AIS_FixRelation::ComputePosition(const Handle(Geom_Curve)& curv, | |
366 | const gp_Pnt& firstp, | |
367 | const gp_Pnt& lastp) const | |
368 | { | |
369 | //--------------------------------------------------------- | |
81bba717 | 370 | // calculate the point of attach |
7fd59977 | 371 | //--------------------------------------------------------- |
372 | gp_Pnt curpos; | |
373 | ||
374 | if (curv->IsKind(STANDARD_TYPE(Geom_Circle))) { | |
375 | ||
376 | Handle(Geom_Circle) gcirc = Handle(Geom_Circle)::DownCast(curv); | |
377 | gp_Dir dir( gcirc->Location().XYZ() + myPntAttach.XYZ() ); | |
378 | gp_Vec transvec = gp_Vec(dir)*myArrowSize; | |
379 | curpos = myPntAttach.Translated(transvec); | |
380 | ||
381 | } //if (curv->IsKind(STANDARD_TYPE(Geom_Circle)) | |
382 | ||
383 | else { | |
384 | // gp_Pln pln(Component()->WorkingPlane()->Plane()->GetValue()->Pln()); | |
385 | gp_Pln pln(myPlane->Pln()); | |
386 | gp_Dir NormPln = pln.Axis().Direction(); | |
387 | gp_Vec vec(firstp,lastp); | |
388 | vec.Cross( gp_Vec(NormPln)); | |
389 | vec.Normalize(); | |
390 | gp_Vec transvec = vec*myArrowSize; | |
391 | curpos = myPntAttach.Translated(transvec); | |
392 | gp_Ax1 RotAx( myPntAttach, NormPln); | |
c6541a0c | 393 | curpos.Rotate(RotAx, M_PI/10); |
7fd59977 | 394 | } |
395 | ||
396 | return curpos; | |
397 | } | |
398 | ||
399 | //======================================================================= | |
400 | //function : ComputeEdge | |
401 | //purpose : computes myPntAttach and the position of the presentation | |
402 | // when you fix an edge | |
403 | //======================================================================= | |
404 | ||
405 | void AIS_FixRelation::ComputeEdge(const TopoDS_Edge& FixEdge, gp_Pnt& curpos) | |
406 | { | |
407 | Handle(Geom_Curve) curEdge; | |
408 | gp_Pnt ptbeg,ptend; | |
409 | if (!AIS::ComputeGeometry(FixEdge,curEdge,ptbeg,ptend)) return; | |
410 | ||
411 | //--------------------------------------------------------- | |
412 | // calcul du point de positionnement du symbole 'fix' | |
413 | //--------------------------------------------------------- | |
81bba717 | 414 | //--> In case of a straight line |
7fd59977 | 415 | if (curEdge->IsKind(STANDARD_TYPE(Geom_Line))){ |
416 | gp_Lin glin = Handle(Geom_Line)::DownCast(curEdge)->Lin(); | |
417 | Standard_Real pfirst(ElCLib::Parameter(glin,ptbeg)); | |
418 | Standard_Real plast(ElCLib::Parameter(glin,ptend)); | |
419 | ComputeLinePosition(glin, curpos, pfirst, plast); | |
420 | } | |
421 | ||
81bba717 | 422 | //--> In case of a circle |
7fd59977 | 423 | else if (curEdge->IsKind(STANDARD_TYPE(Geom_Circle))) { |
424 | gp_Circ gcirc = Handle(Geom_Circle)::DownCast(curEdge)->Circ(); | |
425 | Standard_Real pfirst, plast; | |
426 | BRepAdaptor_Curve cu(FixEdge); | |
427 | pfirst = cu.FirstParameter(); | |
428 | plast = cu.LastParameter(); | |
429 | ComputeCirclePosition(gcirc, curpos, pfirst, plast); | |
430 | } | |
431 | ||
432 | else | |
433 | return; | |
434 | ||
435 | } | |
436 | ||
437 | //======================================================================= | |
438 | //function : ComputeLinePosition | |
439 | //purpose : compute the values of myPntAttach and the position <pos> of | |
440 | // the symbol when the fixed edge has a geometric support equal | |
441 | // to a line. | |
442 | //======================================================================= | |
443 | ||
444 | void AIS_FixRelation::ComputeLinePosition(const gp_Lin& glin, | |
445 | gp_Pnt& pos, | |
446 | Standard_Real& pfirst, | |
447 | Standard_Real& plast) | |
448 | { | |
449 | if (myAutomaticPosition) { | |
81bba717 | 450 | // point of attach is chosen as middle of the segment |
7fd59977 | 451 | myPntAttach = ElCLib::Value((pfirst+ plast)/2, glin); |
452 | ||
453 | gp_Dir norm = myPlane ->Axis().Direction(); | |
454 | ||
455 | norm.Cross(glin.Position().Direction()); | |
456 | pos = myPntAttach.Translated(gp_Vec(norm)*myArrowSize); | |
457 | myAutomaticPosition = Standard_True; | |
458 | } // if (myAutomaticPosition) | |
459 | ||
460 | else { | |
461 | pos = myPosition; | |
462 | Standard_Real linparam = ElCLib::Parameter(glin, pos); | |
463 | ||
81bba717 | 464 | // case if the projection of position is located between 2 vertices |
7fd59977 | 465 | // de l'edge |
466 | if ( (linparam >= pfirst) && (linparam <= plast) ) | |
467 | myPntAttach = ElCLib::Value(linparam,glin); | |
468 | ||
81bba717 | 469 | // case if the projection of Position is outside of the limits |
470 | // of the edge : the point closest to the projection is chosen | |
471 | // as the attach point | |
7fd59977 | 472 | else { |
473 | Standard_Real pOnLin; | |
474 | if (linparam > plast) | |
475 | pOnLin = plast; | |
476 | else | |
477 | pOnLin = pfirst; | |
478 | myPntAttach = ElCLib::Value(pOnLin,glin); | |
479 | gp_Dir norm = myPlane->Axis().Direction(); | |
480 | ||
481 | norm.Cross(glin.Position().Direction()); | |
482 | gp_Lin lsup(myPntAttach, norm); | |
483 | Standard_Real parpos = ElCLib::Parameter(lsup,myPosition); | |
484 | pos = ElCLib::Value(parpos,lsup); | |
485 | } | |
486 | ||
487 | } | |
488 | myPosition = pos; | |
489 | } | |
490 | ||
491 | //======================================================================= | |
492 | //function : ComputeCirclePosition | |
493 | //purpose : compute the values of myPntAttach and the position <pos> of | |
494 | // the symbol when the fixed edge has a geometric support equal | |
495 | // to a circle. | |
496 | //======================================================================= | |
497 | ||
498 | void AIS_FixRelation::ComputeCirclePosition( | |
499 | const gp_Circ& gcirc, | |
500 | gp_Pnt& pos, | |
501 | Standard_Real& pfirst, | |
502 | Standard_Real& plast) | |
503 | { | |
81bba717 | 504 | // readjust parametres on the circle |
c6541a0c D |
505 | if (plast > 2*M_PI ) { |
506 | Standard_Real nbtours = Floor(plast / (2*M_PI)); | |
507 | plast -= nbtours*2*M_PI; | |
508 | pfirst -= nbtours*2*M_PI; | |
7fd59977 | 509 | } |
510 | ||
511 | if (myAutomaticPosition) { | |
81bba717 | 512 | // the point attach is the "middle" of the segment (relatively |
513 | // to the parametres of start and end vertices of the edge | |
7fd59977 | 514 | |
515 | Standard_Real circparam = (pfirst + plast)/2.; | |
516 | ||
517 | if ( !InDomain(pfirst,plast,circparam)) { | |
c6541a0c D |
518 | Standard_Real otherpar = circparam + M_PI; |
519 | if (otherpar > 2*M_PI) otherpar -= 2*M_PI; | |
7fd59977 | 520 | circparam = otherpar; |
521 | } | |
522 | ||
523 | myPntAttach = ElCLib::Value(circparam, gcirc ); | |
524 | ||
525 | gp_Vec dir( gcirc.Location().XYZ(), myPntAttach.XYZ() ); | |
526 | dir.Normalize(); | |
527 | gp_Vec transvec = dir*myArrowSize; | |
528 | pos = myPntAttach.Translated(transvec); | |
529 | myPosition = pos; | |
530 | myAutomaticPosition = Standard_True; | |
531 | } // if (myAutomaticPosition) | |
532 | ||
533 | else { | |
81bba717 | 534 | // case if the projection of myPosition is outside of 2 |
535 | // vertices of the edge. In this case the parameter is readjusted | |
536 | // in the valid part of the circle | |
7fd59977 | 537 | pos = myPosition; |
538 | ||
539 | Standard_Real circparam = ElCLib::Parameter(gcirc, pos); | |
540 | ||
541 | if ( !InDomain(pfirst,plast,circparam)) { | |
c6541a0c D |
542 | Standard_Real otherpar = circparam + M_PI; |
543 | if (otherpar > 2*M_PI) otherpar -= 2*M_PI; | |
7fd59977 | 544 | circparam = otherpar; |
545 | } | |
546 | ||
547 | myPntAttach = ElCLib::Value(circparam,gcirc); | |
548 | } | |
549 | } | |
550 | ||
551 | //======================================================================= | |
552 | //function : ConnectedEdges | |
553 | //purpose : | |
554 | //======================================================================= | |
555 | Standard_Boolean AIS_FixRelation::ConnectedEdges(const TopoDS_Wire& WIRE, | |
556 | const TopoDS_Vertex& V, | |
557 | TopoDS_Edge& E1, | |
558 | TopoDS_Edge& E2) | |
559 | { | |
560 | TopTools_IndexedDataMapOfShapeListOfShape vertexMap; | |
561 | TopExp::MapShapesAndAncestors (WIRE,TopAbs_VERTEX,TopAbs_EDGE,vertexMap); | |
562 | ||
563 | Standard_Boolean found(Standard_False); | |
564 | TopoDS_Vertex theVertex; | |
565 | for (Standard_Integer i=1; i<=vertexMap.Extent() && !found; i++) { | |
566 | if (vertexMap.FindKey(i).IsSame(V)) { | |
567 | theVertex = TopoDS::Vertex(vertexMap.FindKey(i)); | |
568 | found = Standard_True; | |
569 | } | |
570 | } | |
571 | if (!found) { | |
572 | E1.Nullify(); | |
573 | E2.Nullify(); | |
574 | return Standard_False; | |
575 | } | |
576 | ||
577 | TopTools_ListIteratorOfListOfShape iterator(vertexMap.FindFromKey(theVertex)); | |
578 | if (iterator.More()) { | |
579 | E1 = TopoDS::Edge(iterator.Value()); | |
580 | BRepAdaptor_Curve curv(E1); | |
581 | iterator.Next(); | |
582 | } | |
583 | else { | |
584 | E1.Nullify(); | |
585 | return Standard_False; | |
586 | } | |
587 | ||
588 | if (iterator.More()) { | |
589 | E2 = TopoDS::Edge(iterator.Value()); | |
590 | BRepAdaptor_Curve curv(E2); | |
591 | iterator.Next(); | |
592 | } | |
593 | else { | |
594 | E2.Nullify(); | |
595 | return Standard_False; | |
596 | } | |
597 | ||
598 | if (iterator.More()) { | |
599 | E1.Nullify(); | |
600 | E2.Nullify(); | |
601 | return Standard_False; | |
602 | } | |
603 | return Standard_True; | |
604 | } |