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0031668: Visualization - WebGL sample doesn't work on Emscripten 1.39
[occt.git] / src / PrsDim / PrsDim_SymmetricRelation.cxx
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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
787ff240 17#include <PrsDim_SymmetricRelation.hxx>
7fd59977 18
787ff240 19#include <PrsDim.hxx>
7fd59977 20#include <BRep_Tool.hxx>
7fd59977 21#include <BRepAdaptor_Curve.hxx>
42cf5bc1 22#include <BRepAdaptor_Surface.hxx>
23#include <DsgPrs_SymmetricPresentation.hxx>
7fd59977 24#include <ElCLib.hxx>
42cf5bc1 25#include <gce_MakeLin.hxx>
26#include <Geom_Circle.hxx>
27#include <Geom_Line.hxx>
28#include <Geom_Plane.hxx>
7fd59977 29#include <gp_Ax1.hxx>
30#include <gp_Ax2.hxx>
42cf5bc1 31#include <gp_Circ.hxx>
32#include <gp_Dir.hxx>
33#include <gp_Lin.hxx>
34#include <gp_Pln.hxx>
35#include <gp_Pnt.hxx>
7fd59977 36#include <Precision.hxx>
7fd59977 37#include <Prs3d_ArrowAspect.hxx>
a6eb515f 38#include <Prs3d_DimensionAspect.hxx>
42cf5bc1 39#include <Prs3d_Drawer.hxx>
40#include <Prs3d_Presentation.hxx>
42cf5bc1 41#include <Select3D_SensitiveBox.hxx>
42#include <Select3D_SensitiveSegment.hxx>
43#include <SelectMgr_EntityOwner.hxx>
44#include <SelectMgr_Selection.hxx>
45#include <Standard_NotImplemented.hxx>
42cf5bc1 46#include <TopoDS.hxx>
47#include <TopoDS_Shape.hxx>
7fd59977 48
787ff240 49IMPLEMENT_STANDARD_RTTIEXT(PrsDim_SymmetricRelation, PrsDim_Relation)
92efcf78 50
7fd59977 51//=======================================================================
787ff240 52//function : PrsDim_SymmetricRelation
7fd59977 53//purpose :
54//=======================================================================
787ff240 55PrsDim_SymmetricRelation::PrsDim_SymmetricRelation(const TopoDS_Shape& aSymmTool,
7fd59977 56 const TopoDS_Shape& FirstShape,
57 const TopoDS_Shape& SecondShape,
58 const Handle(Geom_Plane)& aPlane)
787ff240 59:PrsDim_Relation(),
7fd59977 60 myTool(aSymmTool)
61{
62 SetFirstShape(FirstShape);
63 SetSecondShape(SecondShape);
64 SetPlane(aPlane);
65 myPosition = aPlane->Pln().Location();
66}
67
68//=======================================================================
69//function : Compute
70//purpose :
71//=======================================================================
787ff240 72void PrsDim_SymmetricRelation::Compute(const Handle(PrsMgr_PresentationManager3d)&,
7fd59977 73 const Handle(Prs3d_Presentation)& aprs,
74 const Standard_Integer)
75{
7fd59977 76 switch (myFShape.ShapeType()) {
77 case TopAbs_FACE :
78 {
79 // cas symetrie entre deux faces
80 ComputeTwoFacesSymmetric(aprs);
81 }
82 break;
83 case TopAbs_EDGE :
84 {
85 // cas symetrie entre deux edges
86 ComputeTwoEdgesSymmetric(aprs);
87 }
88 break;
89 case TopAbs_VERTEX :
90 {
91 // cas symetrie entre deux vertexs
92 ComputeTwoVerticesSymmetric(aprs);
93 }
94 break;
95 default:
96 break;
97 }
98 if (myTool.ShapeType() == TopAbs_EDGE) {
99 Handle(Geom_Curve) aCurve,extcurve;
100 gp_Pnt p1,p2;
101 Standard_Boolean isinfinite,isonplane;
787ff240 102 if (PrsDim::ComputeGeometry(TopoDS::Edge(myTool),
7fd59977 103 aCurve,p1,p2,
104 extcurve,
105 isinfinite,
106 isonplane,
107 myPlane)) {
108 if (!extcurve.IsNull()) {
109 gp_Pnt pf, pl;
110 if (!isinfinite) {
111 pf = p1;
112 pl = p2;
113 }
114 if (isinfinite) aprs->SetInfiniteState(Standard_True);
115 ComputeProjEdgePresentation(aprs,TopoDS::Edge(myTool),aCurve,pf,pl);
116 }
117 }
118 }
119}
120
7fd59977 121//=======================================================================
122//function : ComputeSelection
123//purpose :
124//=======================================================================
787ff240 125void PrsDim_SymmetricRelation::ComputeSelection(const Handle(SelectMgr_Selection)& aSel,
7fd59977 126 const Standard_Integer)
127{
128 Handle(Select3D_SensitiveSegment) seg;
129 Handle(SelectMgr_EntityOwner) own = new SelectMgr_EntityOwner(this,7);
130 Standard_Real F,L;
131
aa00364d 132 Handle(Geom_Curve) geom_axis, extcurve;
7fd59977 133 gp_Pnt p1,p2;
134 Standard_Boolean isinfinite,isonplane;
787ff240 135 if (!PrsDim::ComputeGeometry(TopoDS::Edge(myTool),
7fd59977 136 geom_axis,p1,p2,
137 extcurve,
138 isinfinite,
139 isonplane,
140 myPlane)) return;
141
aa00364d 142 Handle(Geom_Line) geom_line = Handle(Geom_Line)::DownCast (geom_axis);
143 gp_Lin laxis (geom_line->Lin());
7fd59977 144
145 if(myFShape.ShapeType() != TopAbs_VERTEX){
146 BRepAdaptor_Curve cu1(TopoDS::Edge(myFShape));
147
148 if(cu1.GetType() == GeomAbs_Line) {
149// gp_Lin L1 (myFAttach,myFDirAttach);
150 gp_Pnt PjAttachPnt1 = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
151 gp_Pnt PjOffSetPnt = ElCLib::Value(ElCLib::Parameter(laxis,myPosition),laxis);
152 Standard_Real h = fabs(PjOffSetPnt.Distance(PjAttachPnt1)/cos(myAxisDirAttach.Angle(myFDirAttach)));
153 gp_Vec VL1(myFDirAttach);
154 gp_Vec VLa(PjAttachPnt1,PjOffSetPnt);
155 Standard_Real scal = VL1.Dot(VLa);
156 if(scal < 0) VL1.Reverse();
157 VL1.Multiply(h);
158 gp_Pnt P1 = myFAttach.Translated(VL1);
159 gp_Pnt ProjAxis = ElCLib::Value(ElCLib::Parameter(laxis,P1),laxis);
160 gp_Vec v(P1,ProjAxis);
161 gp_Pnt P2 = ProjAxis.Translated(v);
162
163 gp_Lin L3;
164
165 if (!P1.IsEqual(P2,Precision::Confusion())) {
166 L3 = gce_MakeLin(P1,P2);
167 }
168 else {
169 L3 = gce_MakeLin(P1,myFDirAttach);
170 Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
171 Handle(Select3D_SensitiveBox) box =
172 new Select3D_SensitiveBox(own,
173 myPosition.X(),
174 myPosition.Y(),
175 myPosition.Z(),
176 myPosition.X()+size,
177 myPosition.Y()+size,
178 myPosition.Z()+size);
179 aSel->Add(box);
180 }
181 Standard_Real parmin,parmax,parcur;
182 parmin = ElCLib::Parameter(L3,P1);
183 parmax = parmin;
184
185 parcur = ElCLib::Parameter(L3,P2);
186 parmin = Min(parmin,parcur);
187 parmax = Max(parmax,parcur);
188
189 parcur = ElCLib::Parameter(L3,myPosition);
190 parmin = Min(parmin,parcur);
191 parmax = Max(parmax,parcur);
192
193 gp_Pnt PointMin = ElCLib::Value(parmin,L3);
194 gp_Pnt PointMax = ElCLib::Value(parmax,L3);
195
196 if (!PointMin.IsEqual(PointMax,Precision::Confusion())) {
197 seg = new Select3D_SensitiveSegment(own,
198 PointMin,
199 PointMax);
200 aSel->Add(seg);
201 }
202 if (!myFAttach.IsEqual(P1,Precision::Confusion())) {
203 seg = new Select3D_SensitiveSegment(own,
204 myFAttach,
205 P1);
206 aSel->Add(seg);
207 }
208 if (!mySAttach.IsEqual(P2,Precision::Confusion())) {
209 seg = new Select3D_SensitiveSegment(own,
210 mySAttach,
211 P2);
212 aSel->Add(seg);
213 }
214 }
215
216 //=======================Pour les arcs======================
217 if(cu1.GetType() == GeomAbs_Circle) {
7fd59977 218 Handle(Geom_Curve) aGeomCurve = BRep_Tool::Curve(TopoDS::Edge(myFShape),F,L);
c5f3a425 219 Handle(Geom_Circle) geom_circ1 = Handle(Geom_Circle)::DownCast (aGeomCurve) ;
7fd59977 220// Handle(Geom_Circle) geom_circ1 = (const Handle(Geom_Circle)&) BRep_Tool::Curve(TopoDS::Edge(myFShape),F,L);
221 gp_Circ circ1(geom_circ1->Circ());
222 gp_Pnt OffsetPnt(myPosition.X(),myPosition.Y(),myPosition.Z());
223 gp_Pnt Center1 = circ1.Location();
224 gp_Pnt ProjOffsetPoint = ElCLib::Value(ElCLib::Parameter(laxis,OffsetPnt),laxis);
225 gp_Pnt ProjCenter1 = ElCLib::Value(ElCLib::Parameter(laxis,Center1),laxis);
226 gp_Vec Vp(ProjCenter1,Center1);
227 if (Vp.Magnitude() <= Precision::Confusion()) Vp = gp_Vec(laxis.Direction())^myPlane->Pln().Position().Direction();
228 Standard_Real Dt,R,h;
229 Dt = ProjCenter1.Distance(ProjOffsetPoint);
230 R = circ1.Radius();
231 if (Dt > .999*R) {
232 Dt = .999*R;
233 gp_Vec Vout(ProjCenter1,ProjOffsetPoint);
234 ProjOffsetPoint = ProjCenter1.Translated(Vout.Divided(Vout.Magnitude()).Multiplied(Dt));
235 OffsetPnt = ProjOffsetPoint;
236 }
237 h = Sqrt(R*R - Dt*Dt);
238 gp_Pnt P1 = ProjOffsetPoint.Translated(Vp.Added(Vp.Divided(Vp.Magnitude()).Multiplied(h)));
239 gp_Vec v(P1,ProjOffsetPoint);
240 gp_Pnt P2 = ProjOffsetPoint.Translated(v);
241
242 gp_Lin L3;
243 if (!P1.IsEqual(P2,Precision::Confusion())) {
244 L3 = gce_MakeLin(P1,P2);
245 }
246 else {
247 L3 = gce_MakeLin(P1,laxis.Direction());
248 Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
249 Handle(Select3D_SensitiveBox) box =
250 new Select3D_SensitiveBox(own,
251 myPosition.X(),
252 myPosition.Y(),
253 myPosition.Z(),
254 myPosition.X()+size,
255 myPosition.Y()+size,
256 myPosition.Z()+size);
257 aSel->Add(box);
258 }
259 Standard_Real parmin,parmax,parcur;
260 parmin = ElCLib::Parameter(L3,P1);
261 parmax = parmin;
262
263 parcur = ElCLib::Parameter(L3,P2);
264 parmin = Min(parmin,parcur);
265 parmax = Max(parmax,parcur);
266
267 parcur = ElCLib::Parameter(L3,myPosition);
268 parmin = Min(parmin,parcur);
269 parmax = Max(parmax,parcur);
270
271 gp_Pnt PointMin = ElCLib::Value(parmin,L3);
272 gp_Pnt PointMax = ElCLib::Value(parmax,L3);
273
274 if (!PointMin.IsEqual(PointMax,Precision::Confusion())) {
275 seg = new Select3D_SensitiveSegment(own,
276 PointMin,
277 PointMax);
278 aSel->Add(seg);
279 }
280 }
281 }
282 //=======================Pour les points======================
283 else {
284 if (myFAttach.IsEqual(mySAttach,Precision::Confusion())) {
285 seg = new Select3D_SensitiveSegment(own,myPosition,myFAttach);
286 aSel->Add(seg);
287 }
288 else{
289 gp_Pnt ProjOffsetPoint = ElCLib::Value(ElCLib::Parameter(laxis,myPosition),laxis);
290 gp_Pnt ProjAttachmentPoint1 = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
291 gp_Vec PjAtt1_Att1(ProjAttachmentPoint1,myFAttach);
292 gp_Pnt P1 = ProjOffsetPoint.Translated(PjAtt1_Att1);
293 gp_Pnt P2 = ProjOffsetPoint.Translated(PjAtt1_Att1.Reversed());
294 gp_Lin L3;
295
296 if (!P1.IsEqual(P2,Precision::Confusion())) {
297 L3 = gce_MakeLin(P1,P2);
298 }
299 else {
300 L3 = gce_MakeLin(P1,myFDirAttach);
301 Standard_Real size(Min(myVal/100.+1.e-6,myArrowSize+1.e-6));
302 Handle(Select3D_SensitiveBox) box =
303 new Select3D_SensitiveBox(own,
304 myPosition.X(),
305 myPosition.Y(),
306 myPosition.Z(),
307 myPosition.X()+size,
308 myPosition.Y()+size,
309 myPosition.Z()+size);
310 aSel->Add(box);
311 }
312 Standard_Real parmin,parmax,parcur;
313 parmin = ElCLib::Parameter(L3,P1);
314 parmax = parmin;
315
316 parcur = ElCLib::Parameter(L3,P2);
317 parmin = Min(parmin,parcur);
318 parmax = Max(parmax,parcur);
319
320 parcur = ElCLib::Parameter(L3,myPosition);
321 parmin = Min(parmin,parcur);
322 parmax = Max(parmax,parcur);
323
324 gp_Pnt PointMin = ElCLib::Value(parmin,L3);
325 gp_Pnt PointMax = ElCLib::Value(parmax,L3);
326
327 if (!PointMin.IsEqual(PointMax,Precision::Confusion())) {
328 seg = new Select3D_SensitiveSegment(own,PointMin,PointMax);
329 aSel->Add(seg);
330 }
331 if (!myFAttach.IsEqual(P1,Precision::Confusion())) {
332 seg = new Select3D_SensitiveSegment(own,myFAttach,P1);
333 aSel->Add(seg);
334 }
335 if (!mySAttach.IsEqual(P2,Precision::Confusion())) {
336 seg = new Select3D_SensitiveSegment(own,mySAttach,P2);
337 aSel->Add(seg);
338 }
339 }
340 }
341}
342
343//=======================================================================
344//function : ComputeTwoFacesSymmetric
345//purpose :
346//=======================================================================
787ff240 347void PrsDim_SymmetricRelation::ComputeTwoFacesSymmetric(const Handle(Prs3d_Presentation)&)
7fd59977 348{
349}
350
351//=======================================================================
352//function : ComputeTwoEdgesSymmetric
353//purpose :
354//=======================================================================
787ff240 355void PrsDim_SymmetricRelation::ComputeTwoEdgesSymmetric(const Handle(Prs3d_Presentation)& aprs)
7fd59977 356{
357 BRepAdaptor_Curve cu1(TopoDS::Edge(myFShape));
358 if (cu1.GetType() != GeomAbs_Line && cu1.GetType() != GeomAbs_Circle) return;
359 BRepAdaptor_Curve cu2(TopoDS::Edge(mySShape));
360 if (cu2.GetType() != GeomAbs_Line && cu2.GetType() != GeomAbs_Circle) return;
361// gp_Pnt pint3d,ptat11,ptat12,ptat21,ptat22;
362 gp_Pnt ptat11,ptat12,ptat21,ptat22;
363 Handle(Geom_Curve) geom1,geom2;
364 Standard_Boolean isInfinite1,isInfinite2;
365 Handle(Geom_Curve) extCurv;
787ff240 366 if (!PrsDim::ComputeGeometry(TopoDS::Edge(myFShape),
7fd59977 367 TopoDS::Edge(mySShape),
368 myExtShape,
369 geom1,
370 geom2,
371 ptat11,
372 ptat12,
373 ptat21,
374 ptat22,
375 extCurv,
376 isInfinite1,isInfinite2,
377 myPlane)) {
378 return;
379 }
380 aprs->SetInfiniteState((isInfinite1 || isInfinite2) && (myExtShape !=0));
aa00364d 381 Handle(Geom_Curve) geom_axis,extcurve;
7fd59977 382 gp_Pnt p1,p2;
383 Standard_Boolean isinfinite,isonplane;
787ff240 384 if (!PrsDim::ComputeGeometry(TopoDS::Edge(myTool),
7fd59977 385 geom_axis,p1,p2,
386 extcurve,
387 isinfinite,
388 isonplane,
389 myPlane)) return;
390
aa00364d 391 Handle(Geom_Line) geom_line = Handle(Geom_Line)::DownCast (geom_axis);
392 gp_Lin laxis (geom_line->Lin());
7fd59977 393 myAxisDirAttach = laxis.Direction();
394
395 if(cu1.GetType() == GeomAbs_Line){
c5f3a425 396 Handle(Geom_Line) geom_lin1 (Handle(Geom_Line)::DownCast (geom1));
7fd59977 397 gp_Lin l1(geom_lin1->Lin());
398 myFDirAttach = l1.Direction();
399 }
400 gp_Circ circ;
401 if(cu1.GetType() == GeomAbs_Circle){
c5f3a425 402 Handle(Geom_Circle) geom_cir1 (Handle(Geom_Circle)::DownCast (geom1));
7fd59977 403 gp_Circ c(geom_cir1->Circ());
404 circ = c;
405 }
406
407 // recherche points attache
408 gp_Pnt ProjOffset = ElCLib::Value(ElCLib::Parameter(laxis,myPosition),laxis);
409
410/*//----------------------------------------------------
411 //Quand on fait la symetrie de 2 edges consecutifs:
412 //
413 // :<-- Axe
414 // :
415 // /:\
416 // Edge n --->/ : \
417 // / : \<-- Edge n+1
418 // :
419 //----------------------------------------------------
420*/
421 Standard_Boolean idem = Standard_False;
422 if (isInfinite1 && isInfinite2) { // geom1 et geom2 sont des lignes
c5f3a425 423 const gp_Lin& line2 = Handle(Geom_Line)::DownCast (geom2)->Lin();
7fd59977 424 if (myAutomaticPosition) {
c5f3a425 425 myFAttach = Handle(Geom_Line)::DownCast (geom1)->Lin().Location();
7fd59977 426 mySAttach = ElCLib::Value(ElCLib::Parameter(line2,myFAttach),line2);
427 }
428 else {
c5f3a425 429 const gp_Lin& line1 = Handle(Geom_Line)::DownCast (geom1)->Lin();
7fd59977 430 myFAttach = ElCLib::Value(ElCLib::Parameter(line1,myPosition),line1);
431 mySAttach = ElCLib::Value(ElCLib::Parameter(line2,myFAttach),line2);
432 }
433 }
434 else if (!isInfinite1 && !isInfinite2) {
435 if (ptat11.IsEqual(ptat21,Precision::Confusion())) {
436 myFAttach = ptat12;
437 mySAttach = ptat22;
438 idem = Standard_True;
439 }
440 if (ptat11.IsEqual(ptat22,Precision::Confusion())) {
441 myFAttach = ptat12;
442 mySAttach = ptat21;
443 idem = Standard_True;
444 }
445 if (ptat12.IsEqual(ptat21,Precision::Confusion())) {
446 myFAttach = ptat11;
447 mySAttach = ptat22;
448 idem = Standard_True;
449 }
450 if (ptat12.IsEqual(ptat22,Precision::Confusion())) {
451 myFAttach = ptat11;
452 mySAttach = ptat21;
453 idem = Standard_True;
454 }
455 if(!idem){
456 if( ProjOffset.SquareDistance(ptat11) > ProjOffset.SquareDistance(ptat12)) myFAttach = ptat12;
457 else myFAttach = ptat11;
458
459 if (ProjOffset.SquareDistance(ptat21) > ProjOffset.SquareDistance(ptat22)) mySAttach = ptat22;
460 else mySAttach = ptat21;
461 }
462 }
463 else if (isInfinite1) {// geom1 et geom2 sont des lignes
464 mySAttach = ptat21;
c5f3a425 465 const gp_Lin& line1 = Handle(Geom_Line)::DownCast (geom1)->Lin();
7fd59977 466 myFAttach = ElCLib::Value(ElCLib::Parameter(line1,mySAttach),line1);
467 }
468 else if (isInfinite2) {// geom1 et geom2 sont des lignes
469 myFAttach = ptat11;
c5f3a425 470 const gp_Lin& line2 = Handle(Geom_Line)::DownCast (geom2)->Lin();
7fd59977 471 mySAttach = ElCLib::Value(ElCLib::Parameter(line2,myFAttach),line2);
472 }
473
7fd59977 474 if( !myArrowSizeIsDefined )
7fd59977 475 myArrowSize = myFAttach.Distance(mySAttach)/50.;
476 //----------------------------------------------------
477
478 //----------------------------------------------------
479 // Si myFAttach <> mySAttach et PjFAttach = myFAttach
480 //----------------------------------------------------
481 gp_Pnt PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
482
483 if (PjFAttach.IsEqual(myFAttach,Precision::Confusion())){
c5f3a425 484 Handle(Geom_Line) geom_lin2 (Handle(Geom_Line)::DownCast (geom2));
7fd59977 485 gp_Lin l2(geom_lin2->Lin());
486 myFDirAttach = l2.Direction();
487 gp_Pnt PntTempo;
488 PntTempo = myFAttach;
489 myFAttach = mySAttach;
490 mySAttach = PntTempo;
491 PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
492 }
493
494 //----------------------------------------------------
495// gp_Pnt curpos;
496
497 if (myAutomaticPosition) {
498 //gp_Pnt PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
499 // offset pour eviter confusion Edge et Dimension
500 gp_Vec offset(myAxisDirAttach);
501 offset = offset * myArrowSize * (-5);
502 gp_Vec Vt(myFAttach, PjFAttach);
503 gp_Pnt curpos = PjFAttach.Translated(offset.Added(Vt.Multiplied(.15)));
504 myPosition = curpos;
505 }
506
507 gp_Pnt Pj1 = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
508 gp_Pnt Pj2 = ElCLib::Value(ElCLib::Parameter(laxis,mySAttach),laxis);
509 if ((myFAttach.SquareDistance(Pj1)+mySAttach.SquareDistance(Pj2)) <= Precision::Confusion()) myArrowSize = 0.;
a6eb515f 510 Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
511 Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
7fd59977 512 arr->SetLength(myArrowSize);
a6eb515f 513 arr = la->ArrowAspect();
7fd59977 514 arr->SetLength(myArrowSize);
515 if(cu1.GetType() == GeomAbs_Line)
516 DsgPrs_SymmetricPresentation::Add(aprs,
517 myDrawer,
518 myFAttach,
519 mySAttach,
520 myFDirAttach,
521 laxis,
522 myPosition);
523
524 if(cu1.GetType() == GeomAbs_Circle)
525 DsgPrs_SymmetricPresentation::Add(aprs,
526 myDrawer,
527 myFAttach,
528 mySAttach,
529 circ,
530 laxis,
531 myPosition);
532 if ( (myExtShape != 0) && !extCurv.IsNull()) {
533 gp_Pnt pf, pl;
534 if ( myExtShape == 1 ) {
535 if (!isInfinite1) {
536 pf = ptat11;
537 pl = ptat12;
538 }
539 ComputeProjEdgePresentation(aprs,TopoDS::Edge(myFShape),geom1,pf,pl);
540 }
541 else {
542 if (!isInfinite2) {
543 pf = ptat21;
544 pl = ptat22;
545 }
546 ComputeProjEdgePresentation(aprs,TopoDS::Edge(mySShape),geom2,pf,pl);
547 }
548 }
549}
550
551//=======================================================================
552//function : ComputeTwoVertexsSymmetric
553//purpose :
554//=======================================================================
787ff240 555void PrsDim_SymmetricRelation::ComputeTwoVerticesSymmetric(const Handle(Prs3d_Presentation)& aprs)
7fd59977 556{
557 if(myFShape.ShapeType() != TopAbs_VERTEX || mySShape.ShapeType() != TopAbs_VERTEX) return;
aa00364d 558 Handle(Geom_Curve) geom_axis,extcurve;
7fd59977 559 gp_Pnt p1,p2;
560 Standard_Boolean isinfinite,isonplane;
787ff240 561 if (!PrsDim::ComputeGeometry(TopoDS::Edge(myTool),
7fd59977 562 geom_axis,p1,p2,
563 extcurve,
564 isinfinite,
565 isonplane,
566 myPlane)) return;
567
568 Standard_Boolean isOnPlane1, isOnPlane2;
569
787ff240 570 PrsDim::ComputeGeometry(TopoDS::Vertex(myFShape), myFAttach, myPlane, isOnPlane1);
571 PrsDim::ComputeGeometry(TopoDS::Vertex(mySShape), mySAttach, myPlane, isOnPlane2);
7fd59977 572
7fd59977 573 if( !myArrowSizeIsDefined )
7fd59977 574 myArrowSize = myFAttach.Distance(mySAttach)/50.;
575
576 if (isOnPlane1 && isOnPlane2)
577 myExtShape = 0;
578 else if ( isOnPlane1 && !isOnPlane2)
579 myExtShape = 2;
580 else if (!isOnPlane1 && isOnPlane2)
581 myExtShape = 1;
582 else
583 return ;
aa00364d 584
585 Handle(Geom_Line) geom_line = Handle(Geom_Line)::DownCast (geom_axis);
586 gp_Lin laxis (geom_line->Lin());
7fd59977 587 myAxisDirAttach = laxis.Direction();
588
589 // recherche points attache
590// gp_Pnt curpos;
591 if (myAutomaticPosition) {
592 gp_Pnt PjFAttach = ElCLib::Value(ElCLib::Parameter(laxis,myFAttach),laxis);
593 // offset pour eviter confusion Edge et Dimension
594 gp_Vec offset(myAxisDirAttach);
595 offset = offset * myArrowSize * (-5);
596 gp_Vec Vt(myFAttach, PjFAttach);
597 gp_Pnt curpos = PjFAttach.Translated(offset.Added(Vt.Multiplied(.15)));
598 myPosition = curpos;
599 }
600 if (2*(myFAttach.Distance(mySAttach)) <= Precision::Confusion()) myArrowSize = 0.;
a6eb515f 601 Handle(Prs3d_DimensionAspect) la = myDrawer->DimensionAspect();
602 Handle(Prs3d_ArrowAspect) arr = la->ArrowAspect();
7fd59977 603 arr->SetLength(myArrowSize);
a6eb515f 604 arr = la->ArrowAspect();
7fd59977 605 arr->SetLength(myArrowSize);
606 DsgPrs_SymmetricPresentation::Add(aprs,
607 myDrawer,
608 myFAttach,
609 mySAttach,
610 laxis,
611 myPosition);
612 if ( myExtShape == 1)
613 ComputeProjVertexPresentation(aprs,TopoDS::Vertex(myFShape),myFAttach);
614 else if ( myExtShape == 2)
615 ComputeProjVertexPresentation(aprs,TopoDS::Vertex(mySShape),mySAttach);
616}
617
618
619
620
621
622
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