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b311480e | 1 | // Created on: 1997-03-03 |
2 | // Created by: Jean-Pierre COMBE | |
3 | // Copyright (c) 1997-1999 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 | |
17 | #include <Standard_NotImplemented.hxx> | |
18 | ||
19 | #include <AIS_IdenticRelation.ixx> | |
20 | ||
21 | #include <AIS.hxx> | |
22 | #include <AIS_Shape.hxx> | |
23 | #include <AIS_Drawer.hxx> | |
24 | ||
25 | #include <BRep_Tool.hxx> | |
26 | ||
27 | #include <DsgPrs_IdenticPresentation.hxx> | |
28 | ||
29 | #include <ElCLib.hxx> | |
30 | ||
31 | #include <Geom_Circle.hxx> | |
32 | #include <Geom_Line.hxx> | |
33 | #include <Geom_Plane.hxx> | |
34 | #include <Geom_TrimmedCurve.hxx> | |
35 | ||
36 | #include <Precision.hxx> | |
37 | ||
38 | #include <Prs3d_Drawer.hxx> | |
39 | #include <Prs3d_LineAspect.hxx> | |
40 | ||
41 | #include <Select3D_SensitiveCurve.hxx> | |
42 | #include <Select3D_SensitiveSegment.hxx> | |
43 | #include <SelectMgr_EntityOwner.hxx> | |
44 | ||
45 | #include <TColStd_ListIteratorOfListOfTransient.hxx> | |
46 | ||
47 | #include <StdPrs_WFDeflectionShape.hxx> | |
48 | ||
49 | #include <TCollection_ExtendedString.hxx> | |
50 | ||
51 | #include <TopAbs.hxx> | |
52 | #include <TopExp.hxx> | |
53 | #include <TopoDS.hxx> | |
54 | #include <TopoDS_Edge.hxx> | |
55 | #include <TopoDS_Vertex.hxx> | |
56 | #include <TopoDS_Wire.hxx> | |
57 | #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx> | |
58 | #include <TopTools_ListIteratorOfListOfShape.hxx> | |
59 | ||
60 | #include <gp_Dir.hxx> | |
61 | #include <gp_Pnt.hxx> | |
62 | #include <gp_Pln.hxx> | |
63 | #include <gp_Vec.hxx> | |
64 | ||
65 | // jfa 15/10/2000 | |
66 | #include <Geom_Ellipse.hxx> | |
67 | #include <GeomAPI_ProjectPointOnCurve.hxx> | |
68 | ||
69 | static Standard_Real Modulo2PI(const Standard_Real ANGLE) | |
70 | { | |
c6541a0c D |
71 | if ( ANGLE < 0 ) return Modulo2PI(ANGLE + 2*M_PI); |
72 | else if ( ANGLE >= 2*M_PI ) return Modulo2PI(ANGLE - 2*M_PI); | |
7fd59977 | 73 | return ANGLE; |
74 | } | |
75 | ||
76 | static Standard_Boolean IsEqual2PI(const Standard_Real angle1, | |
77 | const Standard_Real angle2, const Standard_Real precision) | |
78 | { | |
79 | Standard_Real diff = Abs(angle1-angle2); | |
80 | if ( diff < precision ) return Standard_True; | |
c6541a0c | 81 | else if ( Abs(diff-2*M_PI) < precision ) return Standard_True; |
7fd59977 | 82 | return Standard_False; |
83 | } | |
84 | // jfa 15/10/2000 end | |
85 | ||
86 | //======================================================================= | |
87 | //function : AIS_Sort | |
88 | //purpose : sort an array of parameters <tab1> in increasing order | |
89 | // updates <tab2> and <tab3> according to <tab1> | |
90 | //======================================================================= | |
91 | static void AIS_Sort(Standard_Real tab1[4], | |
92 | gp_Pnt tab2[4], | |
93 | Standard_Integer tab3[4]) | |
94 | { | |
95 | Standard_Boolean found = Standard_True; | |
96 | Standard_Real cur; gp_Pnt cur1; Standard_Integer cur2; | |
97 | ||
98 | while (found) { | |
99 | found = Standard_False; | |
100 | for (Standard_Integer i=0; i< 3; i++) { | |
101 | if (tab1[i+1] < tab1[i]) { | |
102 | found = Standard_True; | |
103 | cur = tab1[i]; cur1 = tab2[i]; cur2 = tab3[i]; | |
104 | tab1[i] = tab1[i+1]; tab2[i] = tab2[i+1]; tab3[i] = tab3[i+1]; | |
105 | tab1[i+1] = cur; tab2[i+1] = cur1; tab3[i+1] = cur2; | |
106 | } | |
107 | } | |
108 | } | |
109 | } | |
110 | ||
111 | //======================================================================= | |
112 | //function : ConnectedEdges | |
113 | //purpose : | |
114 | //======================================================================= | |
115 | static Standard_Boolean ConnectedEdges(const TopoDS_Wire& WIRE, | |
116 | const TopoDS_Vertex& V, | |
117 | TopoDS_Edge& E1, | |
118 | TopoDS_Edge& E2) | |
119 | { | |
120 | TopTools_IndexedDataMapOfShapeListOfShape vertexMap; | |
121 | TopExp::MapShapesAndAncestors (WIRE,TopAbs_VERTEX,TopAbs_EDGE,vertexMap); | |
122 | ||
123 | Standard_Boolean found(Standard_False); | |
124 | TopoDS_Vertex theVertex; | |
125 | for (Standard_Integer i=1; i<=vertexMap.Extent() && !found; i++) { | |
126 | if (vertexMap.FindKey(i).IsSame(V)) { | |
127 | theVertex = TopoDS::Vertex(vertexMap.FindKey(i)); | |
128 | found = Standard_True; | |
129 | } | |
130 | } | |
131 | if (!found) { | |
132 | E1.Nullify(); | |
133 | E2.Nullify(); | |
134 | return Standard_False; | |
135 | } | |
136 | ||
137 | TopTools_ListIteratorOfListOfShape iterator(vertexMap.FindFromKey(theVertex)); | |
138 | if (iterator.More()) { | |
139 | E1 = TopoDS::Edge(iterator.Value()); | |
140 | iterator.Next(); | |
141 | } | |
142 | else { | |
143 | E1.Nullify(); | |
144 | return Standard_False; | |
145 | } | |
146 | ||
147 | if (iterator.More()) { | |
148 | E2 = TopoDS::Edge(iterator.Value()); | |
149 | iterator.Next(); | |
150 | } | |
151 | else { | |
152 | E2.Nullify(); | |
153 | return Standard_False; | |
154 | } | |
155 | ||
156 | if (iterator.More()) { | |
157 | E1.Nullify(); | |
158 | E2.Nullify(); | |
159 | return Standard_False; | |
160 | } | |
161 | return Standard_True; | |
162 | } | |
163 | ||
164 | // jfa 16/10/2000 | |
165 | //======================================================================= | |
166 | //function : ComputeAttach | |
167 | //purpose : Compute a point on the arc of <thecirc> | |
168 | // between <aFAttach> and <aSAttach> | |
169 | // corresponding to <aPosition> | |
170 | // Returns result into <aPosition> | |
171 | // Note : This function is to be used only in the case of circles. | |
172 | // The <aPosition> parameter is in/out. | |
173 | //======================================================================= | |
174 | static Standard_Boolean ComputeAttach(const gp_Circ& thecirc, | |
175 | const gp_Pnt& aFAttach, | |
176 | const gp_Pnt& aSAttach, | |
177 | gp_Pnt& aPosition) | |
178 | { | |
179 | gp_Pnt curpos = aPosition; | |
180 | ||
181 | // Case of confusion between the current position and the center | |
182 | // of the circle -> we move the current position | |
183 | Standard_Real confusion (Precision::Confusion()); | |
184 | gp_Pnt aCenter = thecirc.Location(); | |
185 | if ( aCenter.Distance(curpos) <= confusion ) | |
186 | { | |
187 | gp_Vec vprec(aCenter, aFAttach); | |
188 | vprec.Normalize(); | |
189 | curpos.Translate(vprec*1e-5); | |
190 | } | |
191 | ||
192 | Standard_Real pcurpos = ElCLib::Parameter(thecirc,curpos); | |
193 | Standard_Real pFAttach = ElCLib::Parameter(thecirc,aFAttach); | |
194 | Standard_Real pSAttach = ElCLib::Parameter(thecirc,aSAttach); | |
195 | ||
196 | Standard_Real pSAttachM = pSAttach; | |
197 | Standard_Real deltap = pSAttachM - pFAttach; | |
198 | if ( deltap < 0 ) | |
199 | { | |
c6541a0c D |
200 | deltap += 2 * M_PI; |
201 | pSAttachM += 2 * M_PI; | |
7fd59977 | 202 | } |
203 | pSAttachM -= pFAttach; | |
204 | ||
c6541a0c | 205 | Standard_Real pmiddleout = pSAttachM/2.0 + M_PI; |
7fd59977 | 206 | |
207 | Standard_Real pcurpos1 = pcurpos; | |
208 | // define where curpos lays | |
209 | if ( pcurpos1 < pFAttach ) | |
210 | { | |
c6541a0c | 211 | pcurpos1 = pcurpos1 + 2 * M_PI - pFAttach; |
7fd59977 | 212 | if ( pcurpos1 > pSAttachM ) // out |
213 | { | |
214 | if ( pcurpos1 > pmiddleout ) pcurpos = pFAttach; | |
215 | else pcurpos = pSAttach; | |
216 | } | |
217 | } | |
218 | else if ( pcurpos1 > (pFAttach + deltap) ) // out | |
219 | { | |
220 | pcurpos1 -= pFAttach; | |
221 | if ( pcurpos1 > pmiddleout ) pcurpos = pFAttach; | |
222 | else pcurpos = pSAttach; | |
223 | } | |
224 | ||
225 | aPosition = ElCLib::Value(pcurpos,thecirc); | |
226 | return Standard_True; | |
227 | } | |
228 | ||
229 | //======================================================================= | |
230 | //function : ComputeAttach | |
231 | //purpose : Compute a point on the arc of ellipse <theEll> | |
232 | // between <aFAttach> and <aSAttach> | |
233 | // corresponding to <aPosition> | |
234 | // Returns result into <aPosition> | |
235 | // Note : This function is to be used only in the case of ellipses. | |
236 | // The <aPosition> parameter is in/out. | |
237 | //======================================================================= | |
238 | static Standard_Boolean ComputeAttach(const gp_Elips& theEll, | |
239 | const gp_Pnt& aFAttach, | |
240 | const gp_Pnt& aSAttach, | |
241 | gp_Pnt& aPosition) | |
242 | { | |
243 | gp_Pnt curpos = aPosition; | |
244 | ||
245 | // Case of confusion between the current position and the center | |
246 | // of the circle -> we move the current position | |
247 | Standard_Real confusion (Precision::Confusion()); | |
248 | gp_Pnt aCenter = theEll.Location(); | |
249 | if ( aCenter.Distance(curpos) <= confusion ) | |
250 | { | |
251 | gp_Vec vprec(aCenter, aFAttach); | |
252 | vprec.Normalize(); | |
253 | curpos.Translate(vprec*1e-5); | |
254 | } | |
255 | ||
256 | // for ellipses it's not good Standard_Real pcurpos = ElCLib::Parameter(theEll,curpos); | |
257 | Handle(Geom_Ellipse) theEllg = new Geom_Ellipse(theEll); | |
258 | GeomAPI_ProjectPointOnCurve aProj (curpos, theEllg); | |
259 | Standard_Real pcurpos = aProj.LowerDistanceParameter(); | |
260 | ||
261 | Standard_Real pFAttach = ElCLib::Parameter(theEll,aFAttach); | |
262 | Standard_Real pSAttach = ElCLib::Parameter(theEll,aSAttach); | |
263 | ||
264 | Standard_Real pSAttachM = pSAttach; | |
265 | Standard_Real deltap = pSAttachM - pFAttach; | |
266 | if ( deltap < 0 ) | |
267 | { | |
c6541a0c D |
268 | deltap += 2 * M_PI; |
269 | pSAttachM += 2 * M_PI; | |
7fd59977 | 270 | } |
271 | pSAttachM -= pFAttach; | |
272 | ||
c6541a0c | 273 | Standard_Real pmiddleout = pSAttachM/2.0 + M_PI; |
7fd59977 | 274 | |
275 | Standard_Real pcurpos1 = pcurpos; | |
276 | // define where curpos lays | |
277 | if ( pcurpos1 < pFAttach ) | |
278 | { | |
c6541a0c | 279 | pcurpos1 = pcurpos1 + 2 * M_PI - pFAttach; |
7fd59977 | 280 | if ( pcurpos1 > pSAttachM ) // out |
281 | { | |
282 | if ( pcurpos1 > pmiddleout ) pcurpos = pFAttach; | |
283 | else pcurpos = pSAttach; | |
284 | } | |
285 | } | |
286 | else if ( pcurpos1 > (pFAttach + deltap) ) // out | |
287 | { | |
288 | pcurpos1 -= pFAttach; | |
289 | if ( pcurpos1 > pmiddleout ) pcurpos = pFAttach; | |
290 | else pcurpos = pSAttach; | |
291 | } | |
292 | ||
293 | aPosition = ElCLib::Value(pcurpos,theEll); | |
294 | return Standard_True; | |
295 | } | |
296 | // jfa 16/10/2000 end | |
297 | ||
298 | //======================================================================= | |
299 | //function : AIS_IdenticRelation | |
300 | //purpose : | |
301 | //======================================================================= | |
302 | AIS_IdenticRelation::AIS_IdenticRelation(const TopoDS_Shape& FirstShape, | |
303 | const TopoDS_Shape& SecondShape, | |
304 | const Handle(Geom_Plane)& aPlane) | |
305 | :isCircle(Standard_False) | |
306 | { | |
307 | myFShape = FirstShape; | |
308 | mySShape = SecondShape; | |
309 | myPlane = aPlane; | |
310 | } | |
311 | ||
312 | //======================================================================= | |
313 | //function : Compute | |
314 | //purpose : | |
315 | //======================================================================= | |
316 | void AIS_IdenticRelation::Compute(const Handle(PrsMgr_PresentationManager3d)&, | |
317 | const Handle(Prs3d_Presentation)& aprs, | |
318 | const Standard_Integer) | |
319 | { | |
320 | aprs->Clear(); | |
321 | ||
322 | switch ( myFShape.ShapeType() ) { | |
323 | ||
324 | case TopAbs_VERTEX: | |
325 | { | |
326 | switch ( mySShape.ShapeType() ) { | |
327 | case TopAbs_VERTEX: | |
328 | { | |
329 | ComputeTwoVerticesPresentation(aprs); | |
330 | } | |
331 | break; | |
332 | case TopAbs_EDGE: | |
333 | { | |
334 | ComputeOneEdgeOVertexPresentation(aprs); | |
335 | } | |
336 | break; | |
337 | default: | |
338 | break; | |
339 | } | |
340 | } | |
341 | break; | |
342 | ||
343 | case TopAbs_EDGE: | |
344 | { | |
345 | switch ( mySShape.ShapeType() ) { | |
346 | case TopAbs_VERTEX: | |
347 | { | |
348 | ComputeOneEdgeOVertexPresentation(aprs); | |
349 | } | |
350 | break; | |
351 | case TopAbs_EDGE: | |
352 | { | |
353 | ComputeTwoEdgesPresentation(aprs); | |
354 | } | |
355 | break; | |
356 | default: | |
357 | break; | |
358 | } | |
359 | } | |
360 | break; | |
361 | default: break; | |
362 | } | |
363 | } | |
364 | ||
365 | //======================================================================= | |
366 | //function : Compute | |
367 | //purpose : | |
368 | //======================================================================= | |
369 | void AIS_IdenticRelation::Compute(const Handle(Prs3d_Projector)& aProjector, | |
370 | const Handle(Prs3d_Presentation)& aPresentation) | |
371 | { | |
372 | // Standard_NotImplemented::Raise("AIS_IdenticRelation::Compute(const Handle(Prs3d_Projector)&,const Handle(Prs3d_Presentation)&)"); | |
373 | PrsMgr_PresentableObject::Compute( aProjector , aPresentation ) ; | |
374 | } | |
375 | ||
857ffd5e | 376 | void AIS_IdenticRelation::Compute(const Handle(Prs3d_Projector)& aProjector, const Handle(Geom_Transformation)& aTransformation, const Handle(Prs3d_Presentation)& aPresentation) |
7fd59977 | 377 | { |
857ffd5e | 378 | // Standard_NotImplemented::Raise("AIS_IdenticRelation::Compute(const Handle(Prs3d_Projector)&, const Handle(Geom_Transformation)&, const Handle(Prs3d_Presentation)&)"); |
7fd59977 | 379 | PrsMgr_PresentableObject::Compute( aProjector , aTransformation , aPresentation ) ; |
380 | } | |
381 | ||
382 | //======================================================================= | |
383 | //function : ComputeSelection | |
384 | //purpose : function used to compute the selection associated to the | |
385 | // "identic" presentation | |
386 | // note : if we are in the case of lines, we create a segment between | |
387 | // myFAttach and mySAttach. In the case of Circles, we create | |
81bba717 | 388 | // an arc of circle between the sames points. We Add a segment |
7fd59977 | 389 | // to link Position to its projection on the curve described |
390 | // before. | |
391 | //======================================================================= | |
392 | ||
393 | void AIS_IdenticRelation::ComputeSelection(const Handle(SelectMgr_Selection)& aSelection, | |
394 | const Standard_Integer) | |
395 | { | |
396 | Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7); | |
397 | ||
398 | Handle(Select3D_SensitiveSegment) seg; | |
399 | // attachement point of the segment linking position to the curve | |
400 | gp_Pnt attach; | |
401 | Standard_Real confusion (Precision::Confusion()); | |
402 | ||
403 | if ( myFAttach.IsEqual(mySAttach, confusion) ) | |
404 | { | |
405 | attach = myFAttach; | |
406 | } | |
407 | else | |
408 | { | |
409 | // jfa 24/10/2000 | |
410 | if ( myFShape.ShapeType() == TopAbs_EDGE ) | |
411 | { | |
412 | Handle(Geom_Curve) curv1,curv2; | |
413 | gp_Pnt firstp1,lastp1,firstp2,lastp2; | |
414 | Standard_Boolean isInfinite1,isInfinite2; | |
415 | Handle(Geom_Curve) extCurv; | |
416 | if ( !AIS::ComputeGeometry(TopoDS::Edge(myFShape),TopoDS::Edge(mySShape), | |
417 | myExtShape,curv1,curv2, | |
418 | firstp1,lastp1,firstp2,lastp2, | |
419 | extCurv,isInfinite1,isInfinite2,myPlane) ) return; | |
420 | ||
421 | if ( isCircle ) // case of Circles | |
422 | { | |
423 | Handle(Geom_Circle) thecirc = (Handle(Geom_Circle)&) curv1; | |
424 | Standard_Real udeb = ElCLib::Parameter(thecirc->Circ(),myFAttach); | |
425 | Standard_Real ufin = ElCLib::Parameter(thecirc->Circ(),mySAttach); | |
426 | Handle(Geom_TrimmedCurve) thecu = new Geom_TrimmedCurve(thecirc,udeb,ufin); | |
427 | ||
428 | Handle(Select3D_SensitiveCurve) scurv = new Select3D_SensitiveCurve(own, thecu); | |
429 | aSelection->Add(scurv); | |
430 | ||
431 | attach = myPosition; | |
432 | ComputeAttach(thecirc->Circ(),myFAttach,mySAttach,attach); | |
433 | } | |
434 | else if ( curv1->IsInstance(STANDARD_TYPE(Geom_Ellipse)) ) // case of ellipses | |
435 | { | |
436 | Handle(Geom_Ellipse) theEll = (Handle(Geom_Ellipse)&) curv1; | |
437 | ||
438 | Standard_Real udeb = ElCLib::Parameter(theEll->Elips(),myFAttach); | |
439 | Standard_Real ufin = ElCLib::Parameter(theEll->Elips(),mySAttach); | |
440 | Handle(Geom_TrimmedCurve) thecu = new Geom_TrimmedCurve(theEll,udeb,ufin); | |
441 | ||
442 | Handle(Select3D_SensitiveCurve) scurv = new Select3D_SensitiveCurve(own, thecu); | |
443 | aSelection->Add(scurv); | |
444 | ||
445 | attach = myPosition; | |
446 | ComputeAttach(theEll->Elips(),myFAttach,mySAttach,attach); | |
447 | } | |
448 | else if ( curv1->IsInstance(STANDARD_TYPE(Geom_Line)) ) // case of Lines | |
449 | { | |
450 | seg = new Select3D_SensitiveSegment(own, myFAttach, mySAttach); | |
451 | aSelection->Add(seg); | |
452 | ||
81bba717 | 453 | //attach = projection of Position() on the curve; |
7fd59977 | 454 | gp_Vec v1 (myFAttach, mySAttach); |
455 | gp_Vec v2 (myFAttach, myPosition); | |
456 | if ( v1.IsParallel(v2, Precision::Angular()) ) | |
457 | { | |
458 | attach = mySAttach; | |
459 | } | |
460 | else | |
461 | { | |
462 | gp_Lin ll (myFAttach, gp_Dir(v1)); | |
463 | attach = ElCLib::Value(ElCLib::Parameter(ll,myPosition), ll); | |
464 | } | |
465 | } | |
466 | else return; | |
467 | } | |
468 | // else if ( myFShape.ShapeType() == TopAbs_VERTEX ) | |
469 | // { | |
470 | // } | |
471 | // jfa 24/10/2000 end | |
472 | } | |
473 | ||
474 | // Creation of the segment linking the attachement point with the | |
475 | // position | |
476 | if ( !attach.IsEqual(myPosition, confusion) ) | |
477 | { | |
478 | seg = new Select3D_SensitiveSegment(own, attach, myPosition); | |
479 | aSelection->Add(seg); | |
480 | } | |
481 | } | |
482 | ||
483 | //======================================================================= | |
484 | //function : ComputeTwoEdgesPresentation | |
485 | //purpose : | |
486 | //======================================================================= | |
487 | void AIS_IdenticRelation::ComputeTwoEdgesPresentation(const Handle(Prs3d_Presentation)& aPrs) | |
488 | { | |
489 | Handle(Geom_Curve) curv1,curv2; | |
490 | gp_Pnt firstp1,lastp1,firstp2,lastp2; | |
491 | Standard_Boolean isInfinite1,isInfinite2; | |
492 | ||
493 | Handle(Geom_Curve) extCurv; | |
494 | if (!AIS::ComputeGeometry(TopoDS::Edge(myFShape), | |
495 | TopoDS::Edge(mySShape), | |
496 | myExtShape, | |
497 | curv1, | |
498 | curv2, | |
499 | firstp1, | |
500 | lastp1, | |
501 | firstp2, | |
502 | lastp2, | |
503 | extCurv, | |
504 | isInfinite1,isInfinite2, | |
505 | myPlane)) | |
506 | return; | |
507 | aPrs->SetInfiniteState((isInfinite1 || isInfinite2) && myExtShape != 0); | |
508 | ||
509 | // Treatement of the case of lines | |
510 | if ( curv1->IsInstance(STANDARD_TYPE(Geom_Line)) && curv2->IsInstance(STANDARD_TYPE(Geom_Line)) ) { | |
511 | // we take the line curv1 like support | |
512 | Handle(Geom_Line) thelin; | |
513 | if (isInfinite1 && !isInfinite2) thelin = (Handle(Geom_Line)&) curv2; | |
514 | else if (!isInfinite1 && isInfinite2) thelin = (Handle(Geom_Line)&) curv1; | |
515 | else thelin = (Handle(Geom_Line)&) curv1; | |
516 | ComputeTwoLinesPresentation(aPrs, thelin, firstp1, lastp1, firstp2, lastp2, isInfinite1, isInfinite2); | |
517 | } | |
518 | ||
519 | // Treatement of the case of circles | |
520 | else if ( curv1->IsInstance(STANDARD_TYPE(Geom_Circle)) && curv2->IsInstance(STANDARD_TYPE(Geom_Circle)) ) { | |
521 | //gp_Pnt curpos; | |
81bba717 | 522 | isCircle = Standard_True; // useful for ComputeSelection |
7fd59977 | 523 | const Handle(Geom_Circle)& thecirc = (Handle(Geom_Circle)&) curv1; |
524 | ComputeTwoCirclesPresentation(aPrs, thecirc, firstp1, lastp1, firstp2, lastp2); | |
525 | } | |
526 | ||
527 | // jfa 10/10/2000 | |
528 | // Treatement of the case of ellipses | |
529 | else if ( curv1->IsInstance(STANDARD_TYPE(Geom_Ellipse)) && curv2->IsInstance(STANDARD_TYPE(Geom_Ellipse)) ) | |
530 | { | |
531 | const Handle(Geom_Ellipse)& theEll = (Handle(Geom_Ellipse)&) curv1; | |
532 | ComputeTwoEllipsesPresentation(aPrs, theEll, firstp1, lastp1, firstp2, lastp2); | |
533 | } | |
534 | // jfa 10/10/2000 end | |
535 | else | |
536 | return; | |
537 | ||
81bba717 | 538 | // Calculate presentation of projected edges |
7fd59977 | 539 | if ( (myExtShape != 0) && !extCurv.IsNull()) { |
540 | if (myExtShape == 1 ) | |
541 | ComputeProjEdgePresentation(aPrs, TopoDS::Edge(myFShape), curv1, firstp1, lastp1); | |
542 | else | |
543 | ComputeProjEdgePresentation(aPrs, TopoDS::Edge(mySShape), curv2, firstp2, lastp2); | |
544 | } | |
545 | } | |
546 | ||
547 | //======================================================================= | |
548 | //function : ComputeTwoLinesPresentation | |
549 | //purpose : Compute the presentation of the 'identic' constraint | |
550 | // between two lines ( which are equal) | |
551 | //input : <thelin> : the | |
552 | // <firstp1>: first extremity of the 1st curve of the constraint | |
553 | // <lastp1> : last extremity of the 1st curve of the constraint | |
554 | // <firstp2>: first extremity of the 2nd curve of the constraint | |
555 | // <lastp2> :last extremity of the 2nd curve of the constraint | |
556 | //======================================================================= | |
557 | void AIS_IdenticRelation::ComputeTwoLinesPresentation(const Handle(Prs3d_Presentation)& aPrs, | |
558 | const Handle(Geom_Line)& thelin, | |
559 | gp_Pnt& firstp1, | |
560 | gp_Pnt& lastp1, | |
561 | gp_Pnt& firstp2, | |
562 | gp_Pnt& lastp2, | |
563 | const Standard_Boolean isInfinite1, | |
564 | const Standard_Boolean isInfinite2) | |
565 | { | |
566 | if (isInfinite1 && isInfinite2) { | |
567 | if ( myAutomaticPosition ) { | |
568 | myFAttach = mySAttach = thelin->Lin().Location(); | |
569 | gp_Pnt curpos; | |
570 | gp_Pln pln(myPlane->Pln()); | |
571 | gp_Dir dir(pln.XAxis().Direction()); | |
572 | gp_Vec transvec = gp_Vec(dir)*myArrowSize; | |
573 | curpos = myFAttach.Translated(transvec);; | |
574 | myPosition = curpos; | |
575 | myAutomaticPosition = Standard_True; | |
576 | } | |
577 | else { | |
578 | myFAttach = mySAttach = ElCLib::Value(ElCLib::Parameter(thelin->Lin(),myPosition),thelin->Lin()); | |
579 | } | |
580 | TCollection_ExtendedString vals(" =="); | |
581 | DsgPrs_IdenticPresentation::Add(aPrs, | |
582 | myDrawer, | |
583 | vals, | |
584 | myFAttach, | |
585 | myPosition); | |
586 | } | |
587 | else { | |
588 | // Computation of the parameters of the 4 points on the line <thelin> | |
589 | Standard_Real pf1, pf2, pl1, pl2; | |
590 | ||
591 | pf1 = ElCLib::Parameter(thelin->Lin(), firstp1); | |
592 | pl1 = ElCLib::Parameter(thelin->Lin(), lastp1); | |
593 | ||
594 | pf2 = ElCLib::Parameter(thelin->Lin(), firstp2); | |
595 | pl2 = ElCLib::Parameter(thelin->Lin(), lastp2); | |
596 | ||
597 | if (isInfinite1) { | |
598 | pf1 = pf2; | |
599 | pl1 = pl2; | |
600 | firstp1 = firstp2; | |
601 | lastp1 = lastp2; | |
602 | } | |
603 | else if (isInfinite2) { | |
604 | pf2 = pf1; | |
605 | pl2 = pl1; | |
606 | firstp2 = firstp1; | |
607 | lastp2 = lastp1; | |
608 | } | |
609 | ||
610 | Standard_Real tabRang1[4]; // array taht contains the parameters of the 4 points | |
611 | // ordered by increasing abscisses. | |
612 | ||
613 | gp_Pnt tabRang2[4]; // array containing the points corresponding to the | |
614 | // parameters in tabRang1 | |
615 | ||
616 | Standard_Integer tabRang3[4]; // array containing the number of the curve( 1 or 2) | |
617 | // of which belongs each point of tabRang2 | |
618 | ||
619 | // Filling of the arrays | |
620 | tabRang1[0] = pf1; tabRang2[0] = firstp1; tabRang3[0] = 1; | |
621 | tabRang1[1] = pf2; tabRang2[1] = firstp2; tabRang3[1] = 2; | |
622 | tabRang1[2] = pl1; tabRang2[2] = lastp1; tabRang3[2] = 1; | |
623 | tabRang1[3] = pl2; tabRang2[3] = lastp2; tabRang3[3] = 2; | |
624 | ||
625 | // Sort of the array of parameters (tabRang1) | |
626 | AIS_Sort(tabRang1, tabRang2, tabRang3); | |
627 | ||
628 | // Computation of myFAttach and mySAttach according to the | |
629 | // position of the 2 linear edges | |
630 | gp_Pnt curpos; | |
631 | gp_Pnt middle; | |
632 | ||
633 | if ( (tabRang1[0] == tabRang1[1]) && (tabRang1[2] == tabRang1[3]) ) { | |
634 | middle.SetXYZ((tabRang2[1].XYZ() + tabRang2[2].XYZ())/2. ); | |
635 | Standard_Real pmiddle = (tabRang1[1] + tabRang1[2]) / 2.; | |
636 | Standard_Real delta = (tabRang1[3] - tabRang1[0])/ 5.; | |
637 | myFAttach = ElCLib::Value(pmiddle-delta, thelin->Lin()); | |
638 | mySAttach = ElCLib::Value(pmiddle+delta, thelin->Lin()); | |
639 | } | |
640 | ||
641 | else if ( tabRang1[1] == tabRang1[2] ) { | |
642 | middle = tabRang2[1]; | |
643 | Standard_Real delta1 = tabRang1[1] - tabRang1[0]; | |
644 | Standard_Real delta2 = tabRang1[3] - tabRang1[2]; | |
645 | if ( delta1 > delta2 ) delta1 = delta2; | |
646 | myFAttach = ElCLib::Value(tabRang1[1]-delta1/2., thelin->Lin()); | |
647 | mySAttach = ElCLib::Value(tabRang1[1]+delta1/2., thelin->Lin()); | |
648 | } | |
649 | ||
650 | // Case of 2 disconnected segments -> the symbol completes the gap | |
651 | // between the 2 edges | |
652 | //-------------------------------- | |
653 | else if ( (tabRang3[0] == tabRang3[1]) && (tabRang1[1] != tabRang1[2])) { | |
654 | middle.SetXYZ((tabRang2[1].XYZ() + tabRang2[2].XYZ())/2. ); | |
655 | myFAttach = tabRang2[1]; | |
656 | mySAttach = tabRang2[2]; | |
657 | } | |
658 | else if ( (tabRang3[0] != tabRang3[1]) | |
659 | && (tabRang3[1] != tabRang3[2]) // Intersection | |
660 | && (tabRang1[1] != tabRang1[2]) ) { | |
661 | middle.SetXYZ((tabRang2[1].XYZ() + tabRang2[2].XYZ())/2. ); | |
662 | myFAttach = tabRang2[1]; | |
663 | mySAttach = tabRang2[2]; | |
664 | } | |
665 | else { // Inclusion | |
666 | myFAttach.SetXYZ((tabRang2[0].XYZ() + tabRang2[1].XYZ())/2. ); | |
667 | mySAttach.SetXYZ((tabRang2[1].XYZ() + tabRang2[2].XYZ())/2. ); | |
668 | middle.SetXYZ( (myFAttach.XYZ() + mySAttach.XYZ() )/2.); | |
669 | } | |
670 | ||
671 | ||
672 | if ( myAutomaticPosition ) { | |
673 | ||
674 | gp_Vec vtrans(myFAttach, mySAttach); | |
675 | vtrans.Normalize(); | |
676 | vtrans.Cross(gp_Vec(myPlane->Pln().Axis().Direction())); | |
677 | vtrans *= ComputeSegSize(); | |
678 | curpos = middle.Translated(vtrans); | |
679 | myPosition = curpos; | |
680 | myAutomaticPosition = Standard_True; | |
681 | } | |
682 | ||
683 | else { | |
684 | ||
685 | curpos = myPosition; | |
686 | Standard_Real pcurpos = ElCLib::Parameter(thelin->Lin() ,curpos); | |
687 | Standard_Real dist = thelin->Lin().Distance(curpos); | |
688 | gp_Pnt proj = ElCLib::Value( pcurpos, thelin->Lin()); | |
689 | gp_Vec trans; | |
690 | Standard_Real confusion(Precision::Confusion()); | |
691 | if ( dist >= confusion ) { | |
692 | trans = gp_Vec(proj, curpos); | |
693 | trans.Normalize(); | |
694 | } | |
695 | Standard_Real pf = ElCLib::Parameter(thelin->Lin() ,myFAttach); | |
696 | Standard_Real pl = ElCLib::Parameter(thelin->Lin() ,mySAttach); | |
697 | if ( pcurpos <= pf ) { | |
698 | pcurpos = pf + 1e-5; | |
699 | curpos = ElCLib::Value( pcurpos, thelin->Lin()); | |
700 | if ( dist >= confusion ) curpos.Translate(trans*dist); | |
701 | } | |
702 | else if ( pcurpos >= pl ) { | |
703 | pcurpos = pl - 1e-5; | |
704 | curpos = ElCLib::Value( pcurpos, thelin->Lin()); | |
705 | if ( dist >= confusion ) curpos.Translate(trans*dist); | |
706 | } | |
707 | SetPosition(curpos); | |
708 | } | |
709 | ||
710 | // Display of the presentation | |
711 | TCollection_ExtendedString vals(" =="); | |
712 | DsgPrs_IdenticPresentation::Add(aPrs, | |
713 | myDrawer, | |
714 | vals, | |
715 | myFAttach, | |
716 | mySAttach, | |
717 | curpos); | |
718 | } | |
719 | } | |
720 | ||
721 | // jfa 17/10/2000 | |
722 | //======================================================================= | |
723 | //function : ComputeTwoCirclesPresentation | |
724 | //purpose : Compute the presentation of the 'identic' constraint | |
725 | // between two circles ( which are equal) | |
726 | //input : <thecirc>: the circle | |
727 | // <firstp1>: first extremity of the 1st curve of the constraint | |
728 | // <lastp1> : last extremity of the 1st curve of the constraint | |
729 | // <firstp2>: first extremity of the 2nd curve of the constraint | |
730 | // <lastp2> :last extremity of the 2nd curve of the constraint | |
731 | //======================================================================= | |
732 | void AIS_IdenticRelation::ComputeTwoCirclesPresentation(const Handle(Prs3d_Presentation)& aPrs, | |
733 | const Handle(Geom_Circle)& thecirc, | |
734 | const gp_Pnt& firstp1, | |
735 | const gp_Pnt& lastp1, | |
736 | const gp_Pnt& firstp2, | |
737 | const gp_Pnt& lastp2) | |
738 | { | |
739 | Standard_Real confusion (Precision::Confusion()); | |
740 | ||
741 | // Searching of complete circles | |
742 | Standard_Boolean circ1complete = (firstp1.IsEqual(lastp1, confusion)); | |
743 | Standard_Boolean circ2complete = (firstp2.IsEqual(lastp2, confusion)); | |
744 | ||
745 | myCenter = thecirc->Location(); | |
746 | Standard_Real aSegSize = thecirc->Radius()/5.0; | |
c6541a0c | 747 | Standard_Real rad = M_PI / 5.0; |
7fd59977 | 748 | |
749 | // I. Case of 2 complete circles | |
750 | if ( circ1complete && circ2complete ) | |
751 | { | |
752 | if (myAutomaticPosition) | |
753 | { | |
754 | Standard_Real pfirst1 = ElCLib::Parameter(thecirc->Circ(), firstp1); | |
755 | myFAttach = ElCLib::Value(Modulo2PI(pfirst1-rad), thecirc->Circ()); | |
756 | mySAttach = ElCLib::Value(Modulo2PI(pfirst1+rad), thecirc->Circ()); | |
757 | ||
758 | gp_Pnt curpos = ElCLib::Value(pfirst1,thecirc->Circ()); | |
759 | gp_Vec vtrans(myCenter, curpos); | |
760 | vtrans.Normalize(); | |
761 | vtrans *= aSegSize; | |
762 | curpos.Translate(vtrans); | |
763 | myPosition = curpos; | |
764 | } | |
765 | else ComputeNotAutoCircPresentation(thecirc); | |
766 | } | |
767 | ||
768 | // II. Case of one complete circle and one arc | |
769 | else if ( (circ1complete && !circ2complete) || (!circ1complete && circ2complete) ) | |
770 | { | |
771 | gp_Pnt firstp, lastp; | |
772 | if ( circ1complete && !circ2complete) | |
773 | { | |
774 | firstp = firstp2; | |
775 | lastp = lastp2; | |
776 | } | |
777 | else | |
778 | { | |
779 | firstp = firstp1; | |
780 | lastp = lastp1; | |
781 | } | |
782 | ||
783 | if (myAutomaticPosition) | |
784 | { | |
785 | ComputeAutoArcPresentation(thecirc, firstp, lastp); | |
786 | } | |
787 | else | |
788 | { | |
789 | ComputeNotAutoArcPresentation(thecirc, firstp, lastp); | |
790 | } | |
791 | } | |
792 | ||
793 | // III and IV. Case of two arcs | |
794 | else if ( !circ1complete && !circ2complete ) | |
795 | { | |
796 | // We project all the points on the circle | |
797 | Standard_Real pf1, pf2, pl1, pl2; | |
798 | pf1 = ElCLib::Parameter(thecirc->Circ(), firstp1); | |
799 | pf2 = ElCLib::Parameter(thecirc->Circ(), firstp2); | |
800 | pl1 = ElCLib::Parameter(thecirc->Circ(), lastp1); | |
801 | pl2 = ElCLib::Parameter(thecirc->Circ(), lastp2); | |
802 | ||
803 | // III. Arcs with common ends | |
804 | // III.1. First of one and last of another | |
805 | if ( IsEqual2PI(pl1,pf2,confusion) || IsEqual2PI(pf1,pl2,confusion) ) | |
806 | { | |
807 | gp_Pnt curpos(0.,0.,0.); | |
808 | Standard_Real att=0.; | |
809 | if ( IsEqual2PI(pl1,pf2,confusion) ) | |
810 | { | |
811 | att = pl1; | |
812 | curpos = lastp1; | |
813 | } | |
814 | else if ( IsEqual2PI(pf1,pl2,confusion) ) | |
815 | { | |
816 | att = pf1; | |
817 | curpos = firstp1; | |
818 | } | |
819 | Standard_Real maxrad = Min(Modulo2PI(pl1 - pf1),Modulo2PI(pl2 - pf2))*3/4; | |
820 | if ( rad > maxrad ) rad = maxrad; | |
821 | Standard_Real pFAttach = Modulo2PI(att - rad); | |
822 | Standard_Real pSAttach = Modulo2PI(att + rad); | |
823 | myFAttach = ElCLib::Value(pFAttach, thecirc->Circ()); | |
824 | mySAttach = ElCLib::Value(pSAttach, thecirc->Circ()); | |
825 | if ( myAutomaticPosition ) | |
826 | { | |
827 | gp_Vec vtrans(myCenter,curpos); | |
828 | vtrans.Normalize(); | |
829 | vtrans *= aSegSize; | |
830 | curpos.Translate(vtrans); | |
831 | myPosition = curpos; | |
832 | } | |
833 | } | |
834 | // III.2. Two first or two last | |
835 | else if ( IsEqual2PI(pf1,pf2,confusion) || IsEqual2PI(pl1,pl2,confusion) ) | |
836 | { | |
837 | Standard_Real l1 = Modulo2PI(pl1 - pf1); | |
838 | Standard_Real l2 = Modulo2PI(pl2 - pf2); | |
839 | gp_Pnt firstp,lastp; | |
840 | if ( l1 < l2 ) | |
841 | { | |
842 | firstp = firstp1; | |
843 | lastp = lastp1; | |
844 | } | |
845 | else | |
846 | { | |
847 | firstp = firstp2; | |
848 | lastp = lastp2; | |
849 | } | |
850 | ||
851 | if ( myAutomaticPosition ) | |
852 | { | |
853 | ComputeAutoArcPresentation(thecirc, firstp, lastp); | |
854 | } | |
855 | else | |
856 | { | |
857 | ComputeNotAutoArcPresentation(thecirc, firstp, lastp); | |
858 | } | |
859 | } | |
860 | // IV. All others arcs (without common ends) | |
861 | else | |
862 | { | |
863 | // order the parameters; first will be pf1 | |
864 | Standard_Real pl1m = Modulo2PI(pl1 - pf1); | |
865 | Standard_Real pf2m = Modulo2PI(pf2 - pf1); | |
866 | Standard_Real pl2m = Modulo2PI(pl2 - pf1); | |
867 | ||
868 | Standard_Boolean case1 = Standard_False; | |
869 | // 1 - not intersecting arcs | |
870 | // 2 - intersecting arcs, but one doesn't contain another | |
871 | // 3a - first arc contains the second one | |
872 | // 3b - second arc contains the first one | |
873 | // 4 - two intersections | |
874 | ||
875 | gp_Pnt firstp, lastp; | |
876 | ||
877 | if ( pl1m < pf2m ) // 1 or 2b or 3b | |
878 | { | |
879 | if ( pl1m < pl2m ) // 1 or 3b | |
880 | { | |
881 | if ( pl2m < pf2m ) // 3b | |
882 | { | |
883 | firstp = firstp1; | |
884 | lastp = lastp1; | |
885 | } | |
886 | else // 1 | |
887 | { | |
888 | case1 = Standard_True; | |
889 | Standard_Real deltap1 = Modulo2PI(pf1 - pl2); | |
890 | Standard_Real deltap2 = Modulo2PI(pf2 - pl1); | |
891 | if ( ((deltap1 < deltap2) && (deltap1 < 2*rad)) || | |
892 | ((deltap2 < deltap1) && (deltap2 > 2*rad)) ) // deltap2 | |
893 | { | |
894 | firstp = lastp1; | |
895 | lastp = firstp2; | |
896 | } | |
897 | else // deltap1 | |
898 | { | |
899 | firstp = lastp2; | |
900 | lastp = firstp1; | |
901 | } | |
902 | } | |
903 | } | |
904 | else // 2b | |
905 | { | |
906 | firstp = firstp1; | |
907 | lastp = lastp2; | |
908 | } | |
909 | } | |
910 | else // 2a or 3a or 4 | |
911 | { | |
912 | if ( pl1m < pl2m ) // 2a | |
913 | { | |
914 | firstp = firstp2; | |
915 | lastp = lastp1; | |
916 | } | |
917 | else // 3a or 4 | |
918 | { | |
919 | if ( pl2m > pf2m ) // 3a | |
920 | { | |
921 | firstp = firstp2; | |
922 | lastp = lastp2; | |
923 | } | |
924 | else // 4 | |
925 | { | |
926 | Standard_Real deltap1 = Modulo2PI(pl1 - pf2); | |
927 | Standard_Real deltap2 = Modulo2PI(pl2 - pf1); | |
928 | if ( ((deltap1 < deltap2) && (deltap1 < 2*rad)) || | |
929 | ((deltap2 < deltap1) && (deltap2 > 2*rad)) ) // deltap2 | |
930 | { | |
931 | firstp = firstp1; | |
932 | lastp = lastp2; | |
933 | } | |
934 | else // deltap1 | |
935 | { | |
936 | firstp = firstp2; | |
937 | lastp = lastp1; | |
938 | } | |
939 | } | |
940 | } | |
941 | } | |
942 | ||
943 | if ( myAutomaticPosition ) | |
944 | { | |
945 | ComputeAutoArcPresentation(thecirc,firstp,lastp,case1); | |
946 | } | |
947 | else | |
948 | { | |
949 | if ( case1 ) | |
950 | { | |
951 | myFAttach = firstp; | |
952 | mySAttach = lastp; | |
953 | } | |
954 | else ComputeNotAutoArcPresentation(thecirc, firstp, lastp); | |
955 | } | |
956 | } | |
957 | } | |
958 | ||
959 | // Display of the presentation | |
960 | TCollection_ExtendedString vals(" =="); | |
961 | gp_Pnt attach = myPosition; | |
962 | ComputeAttach(thecirc->Circ(),myFAttach,mySAttach,attach); | |
963 | DsgPrs_IdenticPresentation::Add(aPrs, | |
964 | myDrawer, | |
965 | vals, | |
966 | myPlane->Pln().Position().Ax2(), | |
967 | myCenter, | |
968 | myFAttach, | |
969 | mySAttach, | |
970 | myPosition, | |
971 | attach); | |
972 | } | |
973 | ||
974 | //======================================================================= | |
975 | //function : ComputeAutoArcPresentation | |
976 | //purpose : Compute the presentation of the constraint where we are | |
977 | // not in the case of dragging. | |
978 | //======================================================================= | |
979 | void AIS_IdenticRelation::ComputeAutoArcPresentation(const Handle(Geom_Circle)& thecirc, | |
980 | const gp_Pnt& firstp, | |
981 | const gp_Pnt& lastp, | |
982 | const Standard_Boolean isstatic) | |
983 | { | |
984 | Standard_Real aSegSize = thecirc->Radius()/5.0; | |
c6541a0c | 985 | Standard_Real rad = M_PI / 5.0; |
7fd59977 | 986 | |
987 | Standard_Real pFA = ElCLib::Parameter(thecirc->Circ(),firstp); | |
988 | Standard_Real pSA = ElCLib::Parameter(thecirc->Circ(),lastp); | |
989 | Standard_Real maxrad = Modulo2PI(pSA - pFA)/2.0; | |
990 | ||
991 | if ( (rad > maxrad) || isstatic ) rad = maxrad; | |
992 | Standard_Real pmiddle = Modulo2PI(pFA + Modulo2PI(pSA - pFA)/2.0); | |
993 | ||
994 | myFAttach = ElCLib::Value(Modulo2PI(pmiddle - rad),thecirc->Circ()); | |
995 | mySAttach = ElCLib::Value(Modulo2PI(pmiddle + rad),thecirc->Circ()); | |
996 | ||
997 | gp_Pnt curpos = ElCLib::Value(pmiddle,thecirc->Circ()); | |
998 | gp_Vec vtrans(myCenter, curpos); | |
999 | vtrans.Normalize(); | |
1000 | vtrans *= aSegSize; | |
1001 | myPosition = curpos.Translated(vtrans); | |
1002 | } | |
1003 | ||
1004 | //======================================================================= | |
1005 | //function : ComputeNotAutoCircPresentation | |
1006 | //purpose : Compute the presentation of the constraint where we are | |
1007 | // in the case of dragging. | |
1008 | // Note : This function is to be used only in the case of full circles. | |
1009 | // The symbol of the constraint moves together with arc | |
1010 | // representing the constraint around all the circle. | |
1011 | //======================================================================= | |
1012 | void AIS_IdenticRelation::ComputeNotAutoCircPresentation(const Handle(Geom_Circle)& thecirc) | |
1013 | { | |
1014 | gp_Pnt curpos = myPosition; | |
1015 | ||
1016 | Handle(Geom_Circle) cirNotAuto = new Geom_Circle(thecirc->Circ()); | |
1017 | ||
1018 | // Case of confusion between the current position and the center | |
1019 | // of the circle -> we move the current position | |
1020 | Standard_Real confusion (Precision::Confusion()); | |
1021 | if ( myCenter.Distance(curpos) <= confusion ) | |
1022 | { | |
1023 | gp_Vec vprec(myCenter, myFAttach); | |
1024 | vprec.Normalize(); | |
1025 | curpos.Translate(vprec*1e-5); | |
1026 | } | |
1027 | ||
c6541a0c | 1028 | Standard_Real rad = M_PI / 5.0; |
7fd59977 | 1029 | Standard_Real pcurpos = ElCLib::Parameter(cirNotAuto->Circ(),curpos); |
1030 | Standard_Real pFAttach = pcurpos - rad; | |
1031 | Standard_Real pSAttach = pcurpos + rad; | |
1032 | myFAttach = ElCLib::Value(pFAttach,cirNotAuto->Circ()); | |
1033 | mySAttach = ElCLib::Value(pSAttach,cirNotAuto->Circ()); | |
1034 | } | |
1035 | ||
1036 | //======================================================================= | |
1037 | //function : ComputeNotAutoArcPresentation | |
1038 | //purpose : Compute the presentation of the constraint where we are | |
1039 | // in the case of dragging. | |
1040 | // Note : This function is to be used only in the case of circles. | |
1041 | // The symbol of the constraint moves only between myFAttach | |
1042 | // and mySAttach. | |
1043 | //======================================================================= | |
1044 | void AIS_IdenticRelation::ComputeNotAutoArcPresentation(const Handle(Geom_Circle)& thecirc, | |
1045 | const gp_Pnt& pntfirst, | |
1046 | const gp_Pnt& pntlast) | |
1047 | { | |
1048 | gp_Pnt curpos = myPosition; | |
1049 | ||
1050 | gp_Circ cirNotAuto = thecirc->Circ(); | |
1051 | ||
1052 | Standard_Real pFPnt = ElCLib::Parameter(cirNotAuto, pntfirst); | |
1053 | Standard_Real pSPnt = ElCLib::Parameter(cirNotAuto, pntlast); | |
1054 | Standard_Real deltap = Modulo2PI(pSPnt - pFPnt)/2.0; | |
1055 | ||
c6541a0c | 1056 | Standard_Real rad = M_PI / 5; |
7fd59977 | 1057 | if ( deltap < rad ) |
1058 | { | |
1059 | myFAttach = pntfirst; | |
1060 | mySAttach = pntlast; | |
1061 | } | |
1062 | else | |
1063 | { | |
1064 | gp_Pnt aFPnt = ElCLib::Value(Modulo2PI(pFPnt + rad), cirNotAuto); | |
1065 | gp_Pnt aSPnt = ElCLib::Value(Modulo2PI(pSPnt - rad), cirNotAuto); | |
1066 | ||
1067 | ComputeAttach(cirNotAuto,aFPnt,aSPnt,curpos); | |
1068 | ||
1069 | Standard_Real pcurpos = ElCLib::Parameter(cirNotAuto,curpos); | |
1070 | myFAttach = ElCLib::Value(pcurpos - rad, cirNotAuto); | |
1071 | mySAttach = ElCLib::Value(pcurpos + rad, cirNotAuto); | |
1072 | } | |
1073 | } | |
1074 | // jfa 17/10/2000 end | |
1075 | ||
1076 | // jfa 18/10/2000 | |
1077 | //======================================================================= | |
1078 | //function : ComputeTwoEllipsesPresentation | |
1079 | //purpose : Compute the presentation of the 'identic' constraint | |
1080 | // between two ellipses (which are equal) | |
1081 | //input : <theEll>: the ellipse | |
1082 | // <firstp1>: first extremity of the 1st curve of the constraint | |
1083 | // <lastp1> : last extremity of the 1st curve of the constraint | |
1084 | // <firstp2>: first extremity of the 2nd curve of the constraint | |
1085 | // <lastp2> :last extremity of the 2nd curve of the constraint | |
1086 | //======================================================================= | |
1087 | void AIS_IdenticRelation::ComputeTwoEllipsesPresentation(const Handle(Prs3d_Presentation)& aPrs, | |
1088 | const Handle(Geom_Ellipse)& theEll, | |
1089 | const gp_Pnt& firstp1, | |
1090 | const gp_Pnt& lastp1, | |
1091 | const gp_Pnt& firstp2, | |
1092 | const gp_Pnt& lastp2) | |
1093 | { | |
1094 | Standard_Real confusion (Precision::Confusion()); | |
1095 | ||
1096 | // Searching of complete ellipses | |
1097 | Standard_Boolean circ1complete = (firstp1.IsEqual(lastp1, confusion)); | |
1098 | Standard_Boolean circ2complete = (firstp2.IsEqual(lastp2, confusion)); | |
1099 | ||
1100 | myCenter = theEll->Location(); | |
1101 | Standard_Real aSegSize = theEll->MajorRadius()/5.0; | |
c6541a0c | 1102 | Standard_Real rad = M_PI / 5.0; |
7fd59977 | 1103 | |
1104 | // I. Case of 2 complete ellipses | |
1105 | if ( circ1complete && circ2complete ) | |
1106 | { | |
1107 | if (myAutomaticPosition) | |
1108 | { | |
1109 | Standard_Real pfirst1 = ElCLib::Parameter(theEll->Elips(), firstp1); | |
1110 | myFAttach = ElCLib::Value(Modulo2PI(pfirst1-rad), theEll->Elips()); | |
1111 | mySAttach = ElCLib::Value(Modulo2PI(pfirst1+rad), theEll->Elips()); | |
1112 | ||
1113 | gp_Pnt curpos = ElCLib::Value(pfirst1,theEll->Elips()); | |
1114 | gp_Vec vtrans(myCenter, curpos); | |
1115 | vtrans.Normalize(); | |
1116 | vtrans *= aSegSize; | |
1117 | curpos.Translate(vtrans); | |
1118 | myPosition = curpos; | |
1119 | } | |
1120 | else ComputeNotAutoElipsPresentation(theEll); | |
1121 | } | |
1122 | ||
1123 | // II. Case of one complete circle and one arc | |
1124 | else if ( (circ1complete && !circ2complete) || (!circ1complete && circ2complete) ) | |
1125 | { | |
1126 | gp_Pnt firstp, lastp; | |
1127 | if ( circ1complete && !circ2complete) | |
1128 | { | |
1129 | firstp = firstp2; | |
1130 | lastp = lastp2; | |
1131 | } | |
1132 | else | |
1133 | { | |
1134 | firstp = firstp1; | |
1135 | lastp = lastp1; | |
1136 | } | |
1137 | ||
1138 | if (myAutomaticPosition) | |
1139 | { | |
1140 | ComputeAutoArcPresentation(theEll, firstp, lastp); | |
1141 | } | |
1142 | else | |
1143 | { | |
1144 | ComputeNotAutoArcPresentation(theEll, firstp, lastp); | |
1145 | } | |
1146 | } | |
1147 | ||
1148 | // III and IV. Case of two arcs | |
1149 | else if ( !circ1complete && !circ2complete ) | |
1150 | { | |
1151 | // We project all the points on the circle | |
1152 | Standard_Real pf1, pf2, pl1, pl2; | |
1153 | pf1 = ElCLib::Parameter(theEll->Elips(), firstp1); | |
1154 | pf2 = ElCLib::Parameter(theEll->Elips(), firstp2); | |
1155 | pl1 = ElCLib::Parameter(theEll->Elips(), lastp1); | |
1156 | pl2 = ElCLib::Parameter(theEll->Elips(), lastp2); | |
1157 | ||
1158 | // III. Arcs with common ends | |
1159 | // III.1. First of one and last of another | |
1160 | if ( IsEqual2PI(pl1,pf2,confusion) || IsEqual2PI(pf1,pl2,confusion) ) | |
1161 | { | |
1162 | gp_Pnt curpos; | |
1163 | Standard_Real att=0.; | |
1164 | if ( IsEqual2PI(pl1,pf2,confusion) ) | |
1165 | { | |
1166 | att = pl1; | |
1167 | curpos = lastp1; | |
1168 | } | |
1169 | else if ( IsEqual2PI(pf1,pl2,confusion) ) | |
1170 | { | |
1171 | att = pf1; | |
1172 | curpos = firstp1; | |
1173 | } | |
1174 | Standard_Real maxrad = Min(Modulo2PI(pl1 - pf1),Modulo2PI(pl2 - pf2))*3/4; | |
1175 | if ( rad > maxrad ) rad = maxrad; | |
1176 | Standard_Real pFAttach = Modulo2PI(att - rad); | |
1177 | Standard_Real pSAttach = Modulo2PI(att + rad); | |
1178 | myFAttach = ElCLib::Value(pFAttach, theEll->Elips()); | |
1179 | mySAttach = ElCLib::Value(pSAttach, theEll->Elips()); | |
1180 | if ( myAutomaticPosition ) | |
1181 | { | |
1182 | gp_Vec vtrans(myCenter,curpos); | |
1183 | vtrans.Normalize(); | |
1184 | vtrans *= aSegSize; | |
1185 | curpos.Translate(vtrans); | |
1186 | myPosition = curpos; | |
1187 | } | |
1188 | } | |
1189 | // III.2. Two first or two last | |
1190 | else if ( IsEqual2PI(pf1,pf2,confusion) || IsEqual2PI(pl1,pl2,confusion) ) | |
1191 | { | |
1192 | Standard_Real l1 = Modulo2PI(pl1 - pf1); | |
1193 | Standard_Real l2 = Modulo2PI(pl2 - pf2); | |
1194 | gp_Pnt firstp,lastp; | |
1195 | if ( l1 < l2 ) | |
1196 | { | |
1197 | firstp = firstp1; | |
1198 | lastp = lastp1; | |
1199 | } | |
1200 | else | |
1201 | { | |
1202 | firstp = firstp2; | |
1203 | lastp = lastp2; | |
1204 | } | |
1205 | ||
1206 | if ( myAutomaticPosition ) | |
1207 | { | |
1208 | ComputeAutoArcPresentation(theEll, firstp, lastp); | |
1209 | } | |
1210 | else | |
1211 | { | |
1212 | ComputeNotAutoArcPresentation(theEll, firstp, lastp); | |
1213 | } | |
1214 | } | |
1215 | // IV. All others arcs (without common ends) | |
1216 | else | |
1217 | { | |
1218 | // order the parameters; first will be pf1 | |
1219 | Standard_Real pl1m = Modulo2PI(pl1 - pf1); | |
1220 | Standard_Real pf2m = Modulo2PI(pf2 - pf1); | |
1221 | Standard_Real pl2m = Modulo2PI(pl2 - pf1); | |
1222 | ||
1223 | Standard_Boolean case1 = Standard_False; | |
1224 | // 1 - not intersecting arcs | |
1225 | // 2 - intersecting arcs, but one doesn't contain another | |
1226 | // 3a - first arc contains the second one | |
1227 | // 3b - second arc contains the first one | |
1228 | // 4 - two intersections | |
1229 | ||
1230 | gp_Pnt firstp, lastp; | |
1231 | ||
1232 | if ( pl1m < pf2m ) // 1 or 2b or 3b | |
1233 | { | |
1234 | if ( pl1m < pl2m ) // 1 or 3b | |
1235 | { | |
1236 | if ( pl2m < pf2m ) // 3b | |
1237 | { | |
1238 | firstp = firstp1; | |
1239 | lastp = lastp1; | |
1240 | } | |
1241 | else // 1 | |
1242 | { | |
1243 | case1 = Standard_True; | |
1244 | Standard_Real deltap1 = Modulo2PI(pf1 - pl2); | |
1245 | Standard_Real deltap2 = Modulo2PI(pf2 - pl1); | |
1246 | if ( ((deltap1 < deltap2) && (deltap1 < 2*rad)) || | |
1247 | ((deltap2 < deltap1) && (deltap2 > 2*rad)) ) // deltap2 | |
1248 | { | |
1249 | firstp = lastp1; | |
1250 | lastp = firstp2; | |
1251 | } | |
1252 | else // deltap1 | |
1253 | { | |
1254 | firstp = lastp2; | |
1255 | lastp = firstp1; | |
1256 | } | |
1257 | } | |
1258 | } | |
1259 | else // 2b | |
1260 | { | |
1261 | firstp = firstp1; | |
1262 | lastp = lastp2; | |
1263 | } | |
1264 | } | |
1265 | else // 2a or 3a or 4 | |
1266 | { | |
1267 | if ( pl1m < pl2m ) // 2a | |
1268 | { | |
1269 | firstp = firstp2; | |
1270 | lastp = lastp1; | |
1271 | } | |
1272 | else // 3a or 4 | |
1273 | { | |
1274 | if ( pl2m > pf2m ) // 3a | |
1275 | { | |
1276 | firstp = firstp2; | |
1277 | lastp = lastp2; | |
1278 | } | |
1279 | else // 4 | |
1280 | { | |
1281 | Standard_Real deltap1 = Modulo2PI(pl1 - pf2); | |
1282 | Standard_Real deltap2 = Modulo2PI(pl2 - pf1); | |
1283 | if ( ((deltap1 < deltap2) && (deltap1 < 2*rad)) || | |
1284 | ((deltap2 < deltap1) && (deltap2 > 2*rad)) ) // deltap2 | |
1285 | { | |
1286 | firstp = firstp1; | |
1287 | lastp = lastp2; | |
1288 | } | |
1289 | else // deltap1 | |
1290 | { | |
1291 | firstp = firstp2; | |
1292 | lastp = lastp1; | |
1293 | } | |
1294 | } | |
1295 | } | |
1296 | } | |
1297 | ||
1298 | if ( myAutomaticPosition ) | |
1299 | { | |
1300 | ComputeAutoArcPresentation(theEll,firstp,lastp,case1); | |
1301 | } | |
1302 | else | |
1303 | { | |
1304 | if ( case1 ) | |
1305 | { | |
1306 | myFAttach = firstp; | |
1307 | mySAttach = lastp; | |
1308 | } | |
1309 | else ComputeNotAutoArcPresentation(theEll, firstp, lastp); | |
1310 | } | |
1311 | } | |
1312 | } | |
1313 | ||
1314 | // Display of the presentation | |
1315 | TCollection_ExtendedString vals(" =="); | |
1316 | gp_Pnt attach = myPosition; | |
1317 | ComputeAttach(theEll->Elips(),myFAttach,mySAttach,attach); | |
1318 | DsgPrs_IdenticPresentation::Add(aPrs, | |
1319 | myDrawer, | |
1320 | vals, | |
1321 | theEll->Elips(), | |
1322 | myFAttach, | |
1323 | mySAttach, | |
1324 | myPosition, | |
1325 | attach); | |
1326 | } | |
1327 | ||
1328 | //======================================================================= | |
1329 | //function : ComputeAutoArcPresentation | |
1330 | //purpose : Compute the presentation of the constraint where we are | |
1331 | // not in the case of dragging. | |
1332 | //======================================================================= | |
1333 | void AIS_IdenticRelation::ComputeAutoArcPresentation(const Handle(Geom_Ellipse)& theEll, | |
1334 | const gp_Pnt& firstp, | |
1335 | const gp_Pnt& lastp, | |
1336 | const Standard_Boolean isstatic) | |
1337 | { | |
1338 | Standard_Real aSegSize = theEll->MajorRadius()/5.0; | |
c6541a0c | 1339 | Standard_Real rad = M_PI / 5.0; |
7fd59977 | 1340 | |
1341 | gp_Elips anEll = theEll->Elips(); | |
1342 | ||
1343 | Standard_Real pFA = ElCLib::Parameter(anEll,firstp); | |
1344 | Standard_Real pSA = ElCLib::Parameter(anEll,lastp); | |
1345 | Standard_Real maxrad = Modulo2PI(pSA - pFA)/2.0; | |
1346 | ||
1347 | if ( (rad > maxrad) || isstatic ) rad = maxrad; | |
1348 | Standard_Real pmiddle = Modulo2PI(pFA + Modulo2PI(pSA - pFA)/2.0); | |
1349 | ||
1350 | myFAttach = ElCLib::Value(Modulo2PI(pmiddle - rad),anEll); | |
1351 | mySAttach = ElCLib::Value(Modulo2PI(pmiddle + rad),anEll); | |
1352 | ||
1353 | gp_Pnt curpos = ElCLib::Value(pmiddle,anEll); | |
1354 | gp_Vec vtrans(myCenter, curpos); | |
1355 | vtrans.Normalize(); | |
1356 | vtrans *= aSegSize; | |
1357 | myPosition = curpos.Translated(vtrans); | |
1358 | } | |
1359 | ||
1360 | //======================================================================= | |
1361 | //function : ComputeNotAutoElipsPresentation | |
1362 | //purpose : Compute the presentation of the constraint where we are | |
1363 | // in the case of dragging. | |
1364 | // Note : This function is to be used only in the case of ellipses. | |
1365 | // The symbol of the constraint moves only between myFAttach | |
1366 | // and mySAttach. | |
1367 | //======================================================================= | |
1368 | void AIS_IdenticRelation::ComputeNotAutoElipsPresentation(const Handle(Geom_Ellipse)& theEll) | |
1369 | { | |
1370 | gp_Pnt curpos = myPosition; | |
1371 | ||
1372 | gp_Elips anEll = theEll->Elips(); | |
1373 | ||
1374 | // Case of confusion between the current position and the center | |
1375 | // of the ellipse -> we move the current position | |
1376 | Standard_Real confusion (Precision::Confusion()); | |
1377 | if ( myCenter.Distance(curpos) <= confusion ) | |
1378 | { | |
1379 | gp_Vec vprec(myCenter, myFAttach); | |
1380 | vprec.Normalize(); | |
1381 | curpos.Translate(vprec*1e-5); | |
1382 | } | |
1383 | ||
c6541a0c | 1384 | Standard_Real rad = M_PI / 5.0; |
7fd59977 | 1385 | // Standard_Real pcurpos = ElCLib::Parameter(anEll,curpos); |
1386 | GeomAPI_ProjectPointOnCurve aProj (curpos, theEll); | |
1387 | Standard_Real pcurpos = aProj.LowerDistanceParameter(); | |
1388 | ||
1389 | Standard_Real pFAttach = pcurpos - rad; | |
1390 | Standard_Real pSAttach = pcurpos + rad; | |
1391 | myFAttach = ElCLib::Value(pFAttach,anEll); | |
1392 | mySAttach = ElCLib::Value(pSAttach,anEll); | |
1393 | } | |
1394 | ||
1395 | //======================================================================= | |
1396 | //function : ComputeNotAutoArcPresentation | |
1397 | //purpose : Compute the presentation of the constraint where we are | |
1398 | // in the case of dragging. | |
1399 | // Note : This function is to be used only in the case of ellipses. | |
1400 | // The symbol of the constraint moves only between myFAttach | |
1401 | // and mySAttach. | |
1402 | //======================================================================= | |
1403 | void AIS_IdenticRelation::ComputeNotAutoArcPresentation(const Handle(Geom_Ellipse)& theEll, | |
1404 | const gp_Pnt& pntfirst, | |
1405 | const gp_Pnt& pntlast) | |
1406 | { | |
1407 | gp_Pnt curpos = myPosition; | |
1408 | ||
1409 | gp_Elips anEll = theEll->Elips(); | |
1410 | ||
1411 | Standard_Real pFPnt = ElCLib::Parameter(anEll, pntfirst); | |
1412 | Standard_Real pSPnt = ElCLib::Parameter(anEll, pntlast); | |
1413 | Standard_Real deltap = Modulo2PI(pSPnt - pFPnt)/2.0; | |
1414 | ||
c6541a0c | 1415 | Standard_Real rad = M_PI / 5; |
7fd59977 | 1416 | if ( deltap < rad ) |
1417 | { | |
1418 | myFAttach = pntfirst; | |
1419 | mySAttach = pntlast; | |
1420 | } | |
1421 | else | |
1422 | { | |
1423 | gp_Pnt aFPnt = ElCLib::Value(Modulo2PI(pFPnt + rad), anEll); | |
1424 | gp_Pnt aSPnt = ElCLib::Value(Modulo2PI(pSPnt - rad), anEll); | |
1425 | ||
1426 | ComputeAttach(anEll,aFPnt,aSPnt,curpos); | |
1427 | ||
1428 | // Standard_Real pcurpos = ElCLib::Parameter(anEll,curpos); | |
1429 | GeomAPI_ProjectPointOnCurve aProj (curpos, theEll); | |
1430 | Standard_Real pcurpos = aProj.LowerDistanceParameter(); | |
1431 | ||
1432 | myFAttach = ElCLib::Value(pcurpos - rad, anEll); | |
1433 | mySAttach = ElCLib::Value(pcurpos + rad, anEll); | |
1434 | } | |
1435 | } | |
1436 | // jfa 18/10/2000 end | |
1437 | ||
1438 | //======================================================================= | |
1439 | //function : ComputeTwoVerticesPresentation | |
1440 | //purpose : | |
1441 | //======================================================================= | |
1442 | void AIS_IdenticRelation::ComputeTwoVerticesPresentation(const Handle(Prs3d_Presentation)& aPrs) | |
1443 | { | |
1444 | Standard_Boolean isOnPlane1, isOnPlane2; | |
1445 | const TopoDS_Vertex& FVertex = TopoDS::Vertex(myFShape); | |
1446 | const TopoDS_Vertex& SVertex = TopoDS::Vertex(mySShape); | |
1447 | ||
1448 | AIS::ComputeGeometry(FVertex, myFAttach, myPlane, isOnPlane1); | |
1449 | AIS::ComputeGeometry(SVertex, mySAttach, myPlane, isOnPlane2); | |
1450 | ||
1451 | if (isOnPlane1 && isOnPlane2) | |
1452 | myExtShape = 0; | |
1453 | else if ( isOnPlane1 && !isOnPlane2) | |
1454 | myExtShape = 2; | |
1455 | else if (!isOnPlane1 && isOnPlane2) | |
1456 | myExtShape = 1; | |
1457 | else | |
1458 | return ; | |
1459 | ||
1460 | ||
1461 | // The attachement points are the points themselves that must be | |
1462 | //identical | |
1463 | myFAttach = BRep_Tool::Pnt(FVertex); | |
1464 | mySAttach = myFAttach; | |
1465 | ||
1466 | gp_Pnt curpos; | |
1467 | if (myAutomaticPosition) | |
1468 | { | |
1469 | //Computation of the size of the symbol | |
1470 | Standard_Real symbsize = ComputeSegSize(); | |
1471 | if (symbsize <= Precision::Confusion()) symbsize = 1.; | |
1472 | symbsize*=5; | |
1473 | // Computation of the direction of the segment of the presentation | |
1474 | // we take the median of the edges connected to vertices | |
1475 | gp_Dir dF, dS; | |
1476 | gp_Dir myDir; | |
1477 | TColStd_ListIteratorOfListOfTransient it(Users()); | |
1478 | if (it.More()) | |
1479 | { | |
1480 | const Handle(AIS_Shape)& USER = Handle(AIS_Shape)::DownCast(it.Value()); | |
1481 | if (!USER.IsNull()) | |
1482 | { | |
1483 | const TopoDS_Shape& SH =USER->Shape(); | |
1484 | if ( (!SH.IsNull()) && (SH.ShapeType() == TopAbs_WIRE) ) | |
1485 | { | |
1486 | const TopoDS_Wire& WIRE = TopoDS::Wire(USER->Shape()); | |
1487 | Standard_Boolean done = ComputeDirection(WIRE,FVertex,dF); | |
1488 | if (!done) return; | |
1489 | done = ComputeDirection(WIRE,SVertex,dS); | |
1490 | if (!done) return; | |
1491 | } | |
1492 | else return; | |
1493 | } | |
1494 | else return; | |
1495 | ||
1496 | // computation of the segment direction like average | |
1497 | // of the 2 computed directions. | |
1498 | if ( dF.IsParallel(dS, Precision::Angular()) ) | |
1499 | { | |
1500 | myDir = dF.Crossed(myPlane->Pln().Axis().Direction()); | |
1501 | } | |
1502 | else | |
1503 | { | |
1504 | myDir.SetXYZ(dF.XYZ() + dS.XYZ()); | |
1505 | } | |
1506 | curpos = myFAttach.Translated(gp_Vec(myDir)*symbsize) ; | |
1507 | } | |
1508 | // jfa 11/10/2000 | |
1509 | else | |
1510 | { | |
1511 | curpos = myFAttach; | |
1512 | } | |
1513 | // jfa 11/10/2000 end | |
1514 | ||
1515 | myPosition = curpos; | |
1516 | myAutomaticPosition = Standard_False; | |
1517 | } | |
1518 | else | |
1519 | { | |
1520 | curpos = myPosition; | |
1521 | } | |
1522 | ||
1523 | // Presentation computation | |
1524 | TCollection_ExtendedString vals(" ++"); | |
1525 | DsgPrs_IdenticPresentation::Add(aPrs, | |
1526 | myDrawer, | |
1527 | vals, | |
1528 | myFAttach, | |
1529 | curpos); | |
81bba717 | 1530 | // Calculate the projection of vertex |
7fd59977 | 1531 | if ( myExtShape == 1) |
1532 | ComputeProjVertexPresentation(aPrs,FVertex,myFAttach); | |
1533 | else if ( myExtShape == 2) | |
1534 | ComputeProjVertexPresentation(aPrs,SVertex,mySAttach); | |
1535 | } | |
1536 | ||
1537 | ||
1538 | ||
1539 | //======================================================================= | |
1540 | //function : ComputeSegSize | |
1541 | //purpose : | |
1542 | //======================================================================= | |
1543 | Standard_Real AIS_IdenticRelation::ComputeSegSize() const | |
1544 | { | |
1545 | return 1.; | |
1546 | } | |
1547 | ||
1548 | //======================================================================= | |
1549 | //function : ComputeDirection | |
1550 | //purpose : Compute a direction according to the different geometric | |
1551 | // elements connected to the vertex <VERT>, in way to not have | |
81bba717 | 1552 | // overlap between the symbol and them. |
7fd59977 | 1553 | //======================================================================= |
1554 | Standard_Boolean AIS_IdenticRelation::ComputeDirection(const TopoDS_Wire& aWire, | |
1555 | const TopoDS_Vertex& VERT, | |
1556 | gp_Dir& dF) const | |
1557 | { | |
1558 | // we take the median of the edges connected to vertices | |
1559 | TopoDS_Edge edg1,edg2; | |
1560 | ConnectedEdges(aWire,VERT,edg1,edg2); | |
1561 | ||
1562 | if ( edg1.IsNull() && edg2.IsNull() ) { | |
1563 | return Standard_False; | |
1564 | } | |
1565 | ||
1566 | Handle(Geom_Curve) curv1,curv2; | |
1567 | gp_Pnt firstp1,lastp1,firstp2,lastp2; | |
1568 | ||
1569 | // Case with 2 edges connected to the vertex <VERT> | |
1570 | if ( !edg1.IsNull() && !edg2.IsNull() ) { | |
1571 | if ( !AIS::ComputeGeometry(edg1,edg2, | |
1572 | curv1,curv2, | |
1573 | firstp1, lastp1, | |
1574 | firstp2, lastp2,myPlane)) | |
1575 | return Standard_False; | |
1576 | ||
1577 | gp_Dir d1, d2; | |
1578 | if ( curv1->IsInstance(STANDARD_TYPE(Geom_Circle)) ) { | |
1579 | d1 = ComputeCircleDirection((Handle(Geom_Circle)&) curv1, VERT); | |
1580 | } | |
1581 | else if (curv1->IsInstance(STANDARD_TYPE(Geom_Line)) ) { | |
1582 | d1 = ComputeLineDirection((Handle(Geom_Line)&) curv1, firstp1); | |
1583 | } | |
1584 | else | |
1585 | return Standard_False; | |
1586 | ||
1587 | if ( curv2->IsInstance(STANDARD_TYPE(Geom_Circle)) ) { | |
1588 | d2 = ComputeCircleDirection( (Handle(Geom_Circle)&) curv2, VERT); | |
1589 | } | |
1590 | else if (curv2->IsInstance(STANDARD_TYPE(Geom_Line)) ) { | |
1591 | d2 =ComputeLineDirection( (Handle(Geom_Line)&) curv2, firstp2); | |
1592 | } | |
1593 | else | |
1594 | return Standard_False; | |
1595 | ||
1596 | if ( !d1.IsParallel(d2, Precision::Angular() )) | |
1597 | dF.SetXYZ( (d1.XYZ() + d2.XYZ())/2 ); | |
1598 | else { | |
1599 | dF= d1.Crossed(myPlane->Pln().Axis().Direction()); | |
1600 | } | |
1601 | } | |
1602 | ||
1603 | // Case where <VERT> is at an extremity of a wire. | |
1604 | else { | |
1605 | TopoDS_Edge VEdge; | |
1606 | if ( !edg1.IsNull() ) | |
1607 | VEdge = edg1; | |
1608 | else if (!edg2.IsNull() ) | |
1609 | VEdge = edg2; | |
1610 | else | |
1611 | return Standard_False; | |
1612 | ||
1613 | if ( !AIS::ComputeGeometry(VEdge, curv1, firstp1, lastp1) ) | |
1614 | return Standard_False; | |
1615 | if ( curv1->IsInstance(STANDARD_TYPE(Geom_Circle)) ) { | |
1616 | dF = ComputeCircleDirection( (Handle(Geom_Circle)&) curv1, VERT); | |
1617 | } | |
1618 | else if (curv1->IsInstance(STANDARD_TYPE(Geom_Line)) ) { | |
1619 | dF = ComputeLineDirection( (Handle(Geom_Line)&) curv1, firstp1); | |
1620 | } | |
1621 | else | |
1622 | return Standard_False; | |
1623 | } | |
1624 | ||
1625 | return Standard_True; | |
1626 | } | |
1627 | ||
1628 | //======================================================================= | |
1629 | //function : ComputeLineDirection | |
1630 | //purpose : | |
1631 | //======================================================================= | |
1632 | gp_Dir AIS_IdenticRelation::ComputeLineDirection(const Handle(Geom_Line)& lin, | |
1633 | const gp_Pnt& firstP) const | |
1634 | { | |
1635 | gp_Dir dir; | |
1636 | dir = lin->Lin().Direction(); | |
1637 | if ( !myFAttach.IsEqual(firstP, Precision::Confusion()) ) | |
1638 | dir.Reverse(); | |
1639 | return dir; | |
1640 | } | |
1641 | ||
1642 | //======================================================================= | |
1643 | //function : ComputeCircleDirection | |
1644 | //purpose : | |
1645 | //======================================================================= | |
1646 | gp_Dir AIS_IdenticRelation::ComputeCircleDirection(const Handle(Geom_Circle)& circ, | |
1647 | const TopoDS_Vertex& VERT) const | |
1648 | { | |
1649 | gp_Vec V(circ->Location(),BRep_Tool::Pnt(VERT)); | |
1650 | return gp_Dir(V); | |
1651 | } | |
1652 | ||
1653 | //======================================================================= | |
1654 | //function : ComputeOneEdgeOVertexPresentation | |
1655 | //purpose : | |
1656 | //======================================================================= | |
1657 | void AIS_IdenticRelation::ComputeOneEdgeOVertexPresentation(const Handle(Prs3d_Presentation)& aPrs) | |
1658 | { | |
1659 | TopoDS_Vertex V; | |
1660 | TopoDS_Edge E; | |
1661 | Standard_Integer numedge; | |
1662 | ||
1663 | if (myFShape.ShapeType() == TopAbs_VERTEX) { | |
1664 | V = TopoDS::Vertex(myFShape); | |
1665 | E = TopoDS::Edge(mySShape); | |
81bba717 | 1666 | numedge = 2;// edge = 2nd shape |
7fd59977 | 1667 | } |
1668 | else { | |
1669 | V = TopoDS::Vertex(mySShape); | |
1670 | E = TopoDS::Edge(myFShape); | |
81bba717 | 1671 | numedge = 1; // edge = 1st shape |
7fd59977 | 1672 | } |
1673 | gp_Pnt ptonedge1,ptonedge2; | |
1674 | Handle(Geom_Curve) aCurve; | |
1675 | Handle(Geom_Curve) extCurv; | |
1676 | Standard_Boolean isInfinite; | |
1677 | Standard_Boolean isOnPlanEdge, isOnPlanVertex; | |
1678 | if (!AIS::ComputeGeometry(E,aCurve,ptonedge1,ptonedge2,extCurv,isInfinite,isOnPlanEdge,myPlane)) | |
1679 | return; | |
1680 | aPrs->SetInfiniteState(isInfinite); | |
1681 | AIS::ComputeGeometry(V, myFAttach, myPlane, isOnPlanVertex); | |
1682 | ||
81bba717 | 1683 | // only the curve can be projected |
7fd59977 | 1684 | if (!isOnPlanEdge && !isOnPlanVertex) return; |
1685 | ||
1686 | if (!isOnPlanEdge) { | |
1687 | if (numedge == 1) myExtShape = 1; | |
1688 | else myExtShape = 2; | |
1689 | } | |
1690 | else if (!isOnPlanVertex) { | |
1691 | if (numedge == 1) myExtShape = 2; | |
1692 | else myExtShape = 1; | |
1693 | } | |
1694 | // The attachement points are the point | |
1695 | myFAttach = BRep_Tool::Pnt(V); | |
1696 | mySAttach = myFAttach; | |
1697 | ||
1698 | gp_Pnt curpos; | |
1699 | if (myAutomaticPosition) { | |
1700 | //Computation of the size of the symbol | |
1701 | Standard_Real symbsize = ComputeSegSize(); | |
1702 | symbsize*=5; | |
1703 | // Computation of the direction of the segment of the presentation | |
1704 | // we take the median of the edges connected to vertices | |
1705 | gp_Dir myDir; | |
1706 | if ( aCurve->IsKind(STANDARD_TYPE(Geom_Line))) { | |
1707 | myDir = ((Handle(Geom_Line)&) aCurve)->Lin().Direction(); | |
1708 | myDir.Cross(myPlane->Pln().Axis().Direction()); | |
1709 | } | |
1710 | else if (aCurve->IsKind(STANDARD_TYPE(Geom_Circle))) { | |
1711 | Handle(Geom_Circle) CIR = (Handle(Geom_Circle)&) aCurve; | |
1712 | myDir.SetXYZ(myFAttach.XYZ() - CIR->Location().XYZ()); | |
1713 | } | |
1714 | // jfa 10/10/2000 | |
1715 | else if (aCurve->IsKind(STANDARD_TYPE(Geom_Ellipse))) { | |
1716 | Handle(Geom_Ellipse) CIR = (Handle(Geom_Ellipse)&) aCurve; | |
1717 | myDir.SetXYZ(myFAttach.XYZ() - CIR->Location().XYZ()); | |
1718 | } | |
1719 | // jfa 10/10/2000 end | |
1720 | ||
1721 | curpos = myFAttach.Translated(gp_Vec(myDir)*symbsize) ; | |
1722 | myPosition = curpos; | |
1723 | myAutomaticPosition = Standard_True; | |
1724 | } | |
1725 | else { | |
1726 | curpos = myPosition; | |
1727 | } | |
1728 | ||
1729 | // Presentation computation | |
1730 | TCollection_ExtendedString vals(" -+-"); | |
1731 | DsgPrs_IdenticPresentation::Add(aPrs, | |
1732 | myDrawer, | |
1733 | vals, | |
1734 | myFAttach, | |
1735 | curpos); | |
1736 | if (myExtShape != 0) { | |
81bba717 | 1737 | if (!extCurv.IsNull()) { // the edge is not in the WP |
7fd59977 | 1738 | ComputeProjEdgePresentation(aPrs,E,(Handle(Geom_Line)&) aCurve,ptonedge1,ptonedge2); |
1739 | } | |
1740 | } | |
1741 | } |