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0026886: Visualization, TKV3d - eliminate global variables
[occt.git] / src / AIS / AIS.cxx
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b311480e 1// Created on: 1996-12-11
2// Created by: Robert COUBLANC
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
18#include <Adaptor3d_HCurve.hxx>
19#include <Adaptor3d_HSurface.hxx>
42cf5bc1 20#include <AIS.hxx>
21#include <Bnd_Box.hxx>
22#include <BRep_Tool.hxx>
7fd59977 23#include <BRepAdaptor_Curve.hxx>
24#include <BRepAdaptor_HSurface.hxx>
25#include <BRepAdaptor_Surface.hxx>
42cf5bc1 26#include <BRepBuilderAPI_MakeEdge.hxx>
27#include <BRepBuilderAPI_MakeVertex.hxx>
60bf98ae 28#include <BRepTools.hxx>
42cf5bc1 29#include <BRepTopAdaptor_FClass2d.hxx>
7fd59977 30#include <ElCLib.hxx>
31#include <ElSLib.hxx>
7fd59977 32#include <GccEnt_QualifiedLin.hxx>
60bf98ae 33#include <gce_MakeDir.hxx>
34#include <gce_MakeLin.hxx>
7fd59977 35#include <Geom2d_Circle.hxx>
7fd59977 36#include <Geom_CartesianPoint.hxx>
37#include <Geom_Circle.hxx>
38#include <Geom_ConicalSurface.hxx>
39#include <Geom_Curve.hxx>
40#include <Geom_CylindricalSurface.hxx>
41#include <Geom_Ellipse.hxx>
42#include <Geom_Line.hxx>
43#include <Geom_OffsetSurface.hxx>
44#include <Geom_Plane.hxx>
45#include <Geom_SphericalSurface.hxx>
42cf5bc1 46#include <Geom_Surface.hxx>
7fd59977 47#include <Geom_SurfaceOfLinearExtrusion.hxx>
48#include <Geom_SurfaceOfRevolution.hxx>
49#include <Geom_ToroidalSurface.hxx>
50#include <Geom_TrimmedCurve.hxx>
42cf5bc1 51#include <GeomAPI_ExtremaCurveCurve.hxx>
52#include <GeomAPI_IntSS.hxx>
53#include <GeomAPI_ProjectPointOnCurve.hxx>
54#include <GeomAPI_ProjectPointOnSurf.hxx>
55#include <GeomLib.hxx>
56#include <GeomProjLib.hxx>
60bf98ae 57#include <gp_Ax1.hxx>
58#include <gp_Ax3.hxx>
59#include <gp_Dir.hxx>
60#include <gp_Elips.hxx>
61#include <gp_Lin.hxx>
62#include <gp_Pln.hxx>
63#include <gp_Pnt.hxx>
64#include <gp_Vec.hxx>
65#include <gp_XYZ.hxx>
7fd59977 66#include <Precision.hxx>
67#include <Prs3d_LineAspect.hxx>
68#include <Prs3d_PointAspect.hxx>
42cf5bc1 69#include <Prs3d_Presentation.hxx>
7fd59977 70#include <StdPrs_Point.hxx>
5ad8c033 71#include <StdPrs_WFShape.hxx>
7fd59977 72#include <TColStd_Array1OfReal.hxx>
73#include <TColStd_Array2OfReal.hxx>
74#include <TopExp.hxx>
75#include <TopExp_Explorer.hxx>
7fd59977 76#include <TopoDS.hxx>
42cf5bc1 77#include <TopoDS_Edge.hxx>
78#include <TopoDS_Face.hxx>
79#include <TopoDS_Shape.hxx>
80#include <TopoDS_Vertex.hxx>
81#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
7fd59977 82
08cd2f6b 83const Standard_Real SquareTolerance = Precision::SquareConfusion();
7fd59977 84
85//=======================================================================
86//function : Nearest
87//purpose :
88//=======================================================================
7fd59977 89gp_Pnt AIS::Nearest(const TopoDS_Shape& ashape, const gp_Pnt& apoint)
90{
91 Standard_Real dist2 = RealLast();
92 Standard_Real curdist2;
93 gp_Pnt result(0.0,0.0,0.0);
94 gp_Pnt curpnt(0.0,0.0,0.0);
95 TopExp_Explorer explo(ashape,TopAbs_VERTEX);
96 while (explo.More())
97 {
98 curpnt = BRep_Tool::Pnt(TopoDS::Vertex(explo.Current()));
99 curdist2 = apoint.SquareDistance(curpnt);
100 if (curdist2 < dist2)
101 {
102 result = curpnt;
103 dist2 = curdist2;
104 }
105 explo.Next();
106 }
107 return result;
108}
109
60bf98ae 110//=======================================================================
111//function : Nearest
112//purpose : For <thePoint> finds the nearest point on <theLine>.
113//=======================================================================
114gp_Pnt AIS::Nearest (const gp_Lin& theLine, const gp_Pnt& thePoint)
115{
116 Handle(Geom_Line) aLine = new Geom_Line (theLine);
117
118 GeomAPI_ProjectPointOnCurve aPointProj (thePoint, aLine);
119 return aPointProj.Point (1);
120}
121
122//=======================================================================
123//function : Nearest
124//purpose : For the given point finds nearest point on the curve,
125// return TRUE if found point is belongs to curve
126// and FALSE otherwise.
127//=======================================================================
128Standard_Boolean AIS::Nearest (const Handle(Geom_Curve)& theCurve,
129 const gp_Pnt& thePoint,
130 const gp_Pnt& theFirstPoint,
131 const gp_Pnt& theLastPoint,
132 gp_Pnt& theNearestPoint)
133{
134 GeomAPI_ProjectPointOnCurve aPointProj (thePoint, theCurve);
135 theNearestPoint = theCurve->Value (aPointProj.LowerDistanceParameter());
136
137 Standard_Real aLength = theFirstPoint.Distance (theLastPoint);
138
139 if (theNearestPoint.Distance (theFirstPoint) > aLength
140 || theNearestPoint.Distance (theLastPoint) >aLength)
141 {
142 return Standard_False;
143 }
144
145 return Standard_True;
146}
147
7fd59977 148//=======================================================================
149//function : Farest
150//purpose :
151//=======================================================================
7fd59977 152gp_Pnt AIS::Farest( const TopoDS_Shape& aShape, const gp_Pnt& aPoint )
153{
154 Standard_Real MaxDist2 = 0.0e0, curdist2;
155 gp_Pnt Result(0.0,0.0,0.0);
156 gp_Pnt curpnt(0.0,0.0,0.0);
157 TopExp_Explorer Explo( aShape, TopAbs_VERTEX );
158 for (; Explo.More(); Explo.Next())
159 {
160 curpnt = BRep_Tool::Pnt( TopoDS::Vertex( Explo.Current() ) );
161 curdist2 = aPoint.SquareDistance( curpnt );
162 if (curdist2 > MaxDist2)
163 {
164 MaxDist2 = curdist2;
165 Result = curpnt;
166 }
167 }
168 return Result;
169}
170
171
172//=======================================================================
173//function : ComputeGeometry
60bf98ae 174//purpose : for line, circle, ellipse.
7fd59977 175//=======================================================================
60bf98ae 176Standard_Boolean AIS::ComputeGeometry (const TopoDS_Edge& theEdge,
177 Handle(Geom_Curve)& theCurve,
178 gp_Pnt& theFirstPnt,
179 gp_Pnt& theLastPnt)
180{
181 TopLoc_Location anEdgeLoc;
182 Standard_Real aFirst, aLast;
183 theCurve = BRep_Tool::Curve (theEdge, anEdgeLoc, aFirst, aLast);
184 if (theCurve.IsNull())
185 {
186 return Standard_False;
187 }
188
189 if (!anEdgeLoc.IsIdentity())
190 {
191 Handle(Geom_Geometry) aGeometry = theCurve->Transformed (anEdgeLoc.Transformation());
c5f3a425 192 theCurve = Handle(Geom_Curve)::DownCast (aGeometry);
60bf98ae 193 }
194
195 if (theCurve->IsInstance (STANDARD_TYPE (Geom_TrimmedCurve)))
196 {
c5f3a425 197 theCurve = Handle(Geom_TrimmedCurve)::DownCast (theCurve)->BasisCurve();
60bf98ae 198 }
199
200 if (theCurve->IsInstance (STANDARD_TYPE (Geom_Line)))
201 {
c5f3a425 202 Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast (theCurve);
60bf98ae 203 theFirstPnt = ElCLib::Value (aFirst, aLine->Lin());
204 theLastPnt = ElCLib::Value (aLast, aLine->Lin());
205 }
206 else if (theCurve->IsInstance (STANDARD_TYPE (Geom_Circle)))
207 {
c5f3a425 208 Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast (theCurve);
60bf98ae 209
210 theFirstPnt = ElCLib::Value (aFirst, aCirc->Circ());
211 theLastPnt = ElCLib::Value (aLast, aCirc->Circ());
212 }
213 else if (theCurve->IsInstance (STANDARD_TYPE (Geom_Ellipse)))
214 {
c5f3a425 215 Handle(Geom_Ellipse) anEllipse = Handle(Geom_Ellipse)::DownCast (theCurve);
60bf98ae 216 theFirstPnt = ElCLib::Value (aFirst, anEllipse->Elips());
217 theLastPnt = ElCLib::Value (aLast, anEllipse->Elips());
218 }
219 else
220 {
221 return Standard_False;
222 }
7fd59977 223
60bf98ae 224 return Standard_True;
225}
226
227//=======================================================================
228//function : ComputeGeometry
229//purpose : for line, circle, ellipse.
230//=======================================================================
231Standard_Boolean AIS::ComputeGeometry (const TopoDS_Edge& theEdge,
232 Handle(Geom_Curve)& theCurve,
233 gp_Pnt& theFirstPnt,
234 gp_Pnt& theLastPnt,
235 Standard_Boolean& theIsInfinite)
7fd59977 236{
60bf98ae 237 Standard_Real aFirst, aLast;
238
239 BRepAdaptor_Curve anAdaptor (theEdge);
240
241 theCurve = Handle(Geom_Curve)::DownCast
242 (anAdaptor.Curve().Curve()->Transformed (anAdaptor.Trsf()));
243
244 if (theCurve.IsNull())
245 {
246 return Standard_False;
247 }
248
249 aFirst = anAdaptor.FirstParameter();
250 aLast = anAdaptor.LastParameter();
251
252 theIsInfinite = (Precision::IsInfinite (aFirst) || Precision::IsInfinite (aLast));
253
254 if (theCurve->IsInstance (STANDARD_TYPE (Geom_TrimmedCurve)))
255 {
c5f3a425 256 theCurve = Handle(Geom_TrimmedCurve)::DownCast (theCurve)->BasisCurve();
60bf98ae 257 }
258
259 if (!theIsInfinite)
260 {
261 theFirstPnt = theCurve->Value (aFirst);
262 theLastPnt = theCurve->Value (aLast);
263 }
264 else
265 {
266 theFirstPnt = gp::Origin();
267 theLastPnt = gp::Origin();
268 }
269
7fd59977 270 return Standard_True;
271}
272
273//=======================================================================
274//function : ComputeGeometry
275//purpose :
276//=======================================================================
277
60bf98ae 278Standard_Boolean AIS::ComputeGeometry (const TopoDS_Edge& theEdge,
279 Handle(Geom_Curve)& theCurve,
280 gp_Pnt& theFirstPnt,
281 gp_Pnt& theLastPnt,
282 Handle(Geom_Curve)& theExtCurve,
283 Standard_Boolean& theIsInfinite,
284 Standard_Boolean& theIsOnPlane,
285 const Handle(Geom_Plane)& thePlane)
7fd59977 286{
60bf98ae 287 if (thePlane.IsNull())
288 {
289 return Standard_False;
290 }
7fd59977 291
60bf98ae 292 Standard_Real aFirst, aLast;
293 BRepAdaptor_Curve aCurveAdaptor (theEdge);
294 theCurve = Handle(Geom_Curve)::DownCast (aCurveAdaptor.Curve().Curve()->Transformed (aCurveAdaptor.Trsf()));
295 aFirst = aCurveAdaptor.FirstParameter();
296 aLast = aCurveAdaptor.LastParameter();
7fd59977 297
60bf98ae 298 if (theCurve.IsNull())
299 {
300 return Standard_False;
301 }
7fd59977 302
60bf98ae 303 theExtCurve = theCurve;
304 theIsInfinite = (Precision::IsInfinite (aFirst) || Precision::IsInfinite (aLast));
305
306 // Checks that the projected curve is not in the plane.
307 theIsOnPlane = Standard_True;
308 if (theExtCurve->IsInstance (STANDARD_TYPE (Geom_TrimmedCurve)))
309 {
c5f3a425 310 theExtCurve = Handle(Geom_TrimmedCurve)::DownCast (theExtCurve)->BasisCurve();
60bf98ae 311 }
7fd59977 312
60bf98ae 313 if (theExtCurve->IsInstance (STANDARD_TYPE (Geom_Line)))
314 {
c5f3a425 315 Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast (theExtCurve);
60bf98ae 316 theIsOnPlane = thePlane->Pln().Contains (aLine->Lin(),
317 Precision::Confusion(),
318 Precision::Angular());
7fd59977 319 }
60bf98ae 320 else if (theExtCurve->IsInstance (STANDARD_TYPE (Geom_Circle)))
321 {
c5f3a425 322 Handle(Geom_Circle) aCircle = Handle(Geom_Circle)::DownCast (theExtCurve);
60bf98ae 323
324 gp_Ax3 aCircPos (aCircle->Position());
325 theIsOnPlane = aCircPos.IsCoplanar (thePlane->Pln().Position(),
326 Precision::Confusion(),
327 Precision::Angular());
328 }
329
330 if (theIsOnPlane)
331 {
332 theExtCurve.Nullify();
333 }
334
335 theCurve = GeomProjLib::ProjectOnPlane (theCurve, thePlane,
336 thePlane->Pln().Axis().Direction(),
337 Standard_False);
338
339 if (theCurve->IsInstance (STANDARD_TYPE (Geom_Line)))
340 {
c5f3a425 341 Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast (theCurve);
60bf98ae 342 if (!theIsInfinite)
343 {
344 theFirstPnt = ElCLib::Value (aFirst, aLine->Lin());
345 theLastPnt = ElCLib::Value (aLast, aLine->Lin());
7fd59977 346 }
347 }
60bf98ae 348 else if (theCurve->IsInstance (STANDARD_TYPE (Geom_Circle)))
349 {
c5f3a425 350 Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast (theCurve);
60bf98ae 351
352 theFirstPnt = ElCLib::Value (aFirst, aCirc->Circ());
353 theLastPnt = ElCLib::Value (aLast, aCirc->Circ());
7fd59977 354 }
60bf98ae 355 else if (theCurve->IsInstance (STANDARD_TYPE (Geom_Ellipse)))
7fd59977 356 {
c5f3a425 357 Handle(Geom_Ellipse) anEllipse = Handle(Geom_Ellipse)::DownCast (theCurve);
60bf98ae 358
359 theFirstPnt = ElCLib::Value (aFirst, anEllipse->Elips());
360 theLastPnt = ElCLib::Value (aLast, anEllipse->Elips());
7fd59977 361 }
60bf98ae 362 else
363 {
364 return Standard_False;
365 }
366
7fd59977 367 return Standard_True;
368}
369
370//=======================================================================
371//function : ComputeGeometry
372//purpose :
373//=======================================================================
60bf98ae 374Standard_Boolean AIS::ComputeGeometry (const TopoDS_Edge& theFirstEdge,
375 const TopoDS_Edge& theSecondEdge,
376 Handle(Geom_Curve)& theFirstCurve,
377 Handle(Geom_Curve)& theSecondCurve,
378 gp_Pnt& theFirstPnt1,
379 gp_Pnt& theLastPnt1,
380 gp_Pnt& theFirstPnt2,
381 gp_Pnt& theLastPnt2,
382 const Handle(Geom_Plane)& thePlane)
7fd59977 383{
60bf98ae 384 if (thePlane.IsNull())
385 {
386 return Standard_False;
387 }
7fd59977 388
60bf98ae 389 TopLoc_Location aFirstEdgeLoc, aSecondEdgeLoc;
390 Standard_Real aFirst1, aLast1, aFirst2, aLast2;
7fd59977 391
60bf98ae 392 theFirstCurve = BRep_Tool::Curve (theFirstEdge, aFirstEdgeLoc, aFirst1, aLast1);
393 theSecondCurve = BRep_Tool::Curve (theSecondEdge, aSecondEdgeLoc, aFirst2, aLast2);
7fd59977 394
60bf98ae 395 if (theFirstCurve.IsNull())
396 {
397 return Standard_False;
398 }
399
400 if (theSecondCurve.IsNull())
401 {
402 return Standard_False;
403 }
7fd59977 404
60bf98ae 405 if (!aFirstEdgeLoc.IsIdentity())
406 {
407 Handle(Geom_Geometry) aGeomGeometry = theFirstCurve->Transformed (aFirstEdgeLoc.Transformation());
c5f3a425 408 theFirstCurve = Handle(Geom_Curve)::DownCast (aGeomGeometry);
60bf98ae 409 }
410
411 if (!aSecondEdgeLoc.IsIdentity())
412 {
413 Handle(Geom_Geometry) aGeomGeometry = theSecondCurve->Transformed (aSecondEdgeLoc.Transformation());
c5f3a425 414 theSecondCurve = Handle(Geom_Curve)::DownCast (aGeomGeometry);
60bf98ae 415 }
416
417 theFirstCurve = GeomProjLib::ProjectOnPlane (theFirstCurve, thePlane,
418 thePlane->Pln().Axis().Direction(),
419 Standard_False);
420
421
422 theSecondCurve = GeomProjLib::ProjectOnPlane (theSecondCurve, thePlane,
423 thePlane->Pln().Axis().Direction(),
424 Standard_False);
425
426
427 if (theFirstCurve->IsInstance (STANDARD_TYPE(Geom_TrimmedCurve)))
428 {
c5f3a425 429 theFirstCurve = Handle(Geom_TrimmedCurve)::DownCast (theFirstCurve)->BasisCurve();
60bf98ae 430 }
431
432 if (theSecondCurve->IsInstance (STANDARD_TYPE (Geom_TrimmedCurve)))
433 {
c5f3a425 434 theSecondCurve = Handle(Geom_TrimmedCurve)::DownCast (theSecondCurve)->BasisCurve();
60bf98ae 435 }
436
437 if (theFirstCurve->IsInstance(STANDARD_TYPE(Geom_Line)))
438 {
c5f3a425 439 Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast (theFirstCurve);
60bf98ae 440
441 theFirstPnt1 = ElCLib::Value (aFirst1, aLine->Lin());
442 theLastPnt1 = ElCLib::Value (aLast1, aLine->Lin());
443 }
444 else if (theFirstCurve->IsInstance(STANDARD_TYPE(Geom_Circle)))
445 {
c5f3a425 446 Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast (theFirstCurve);
60bf98ae 447
448 theFirstPnt1 = ElCLib::Value (aFirst1, aCirc->Circ());
449 theLastPnt1 = ElCLib::Value (aLast1, aCirc->Circ());
450 }
451 else
452 {
453 return Standard_False;
454 }
455
456 if (theSecondCurve->IsInstance (STANDARD_TYPE (Geom_Line)))
457{
c5f3a425 458 Handle(Geom_Line) aLine = Handle(Geom_Line)::DownCast (theSecondCurve);
60bf98ae 459
460 theFirstPnt2 = ElCLib::Value (aFirst2, aLine->Lin());
461 theLastPnt2 = ElCLib::Value (aLast2, aLine->Lin());
462 }
463 else if (theSecondCurve->IsInstance (STANDARD_TYPE (Geom_Circle)))
464 {
c5f3a425 465 Handle(Geom_Circle) aCirc = Handle(Geom_Circle)::DownCast (theSecondCurve);
60bf98ae 466
467 theFirstPnt2 = ElCLib::Value (aFirst2, aCirc->Circ());
468 theLastPnt2 = ElCLib::Value (aLast2, aCirc->Circ());
469 }
470 else
471 {
472 return Standard_False;
473 }
7fd59977 474
475 return Standard_True;
476}
477
60bf98ae 478//=======================================================================
479//function : ComputeGeometry
480//purpose : Computes the geometry of the 2 edges.
481//=======================================================================
482Standard_Boolean AIS::ComputeGeometry (const TopoDS_Edge& theFirstEdge,
483 const TopoDS_Edge& theSecondEdge,
484 Handle(Geom_Curve)& theFirstCurve,
485 Handle(Geom_Curve)& theSecondCurve,
486 gp_Pnt& theFirstPnt1,
487 gp_Pnt& theLastPnt1,
488 gp_Pnt& theFirstPnt2,
489 gp_Pnt& theLastPnt2,
490 Standard_Boolean& theIsInfinite1,
491 Standard_Boolean& theIsInfinite2)
492{
493 theIsInfinite1 = theIsInfinite2 = Standard_False;
494
495 if (!AIS::ComputeGeometry (theFirstEdge, theFirstCurve,theFirstPnt1, theLastPnt1, theIsInfinite1))
496 {
497 return Standard_False;
498 }
499
500 if (!AIS::ComputeGeometry (theSecondEdge, theSecondCurve,theFirstPnt2, theLastPnt2, theIsInfinite2))
501 {
502 return Standard_False;
503 }
504
505 if (theIsInfinite1 || theIsInfinite2)
506 {
507 if (theFirstCurve->DynamicType() == theSecondCurve->DynamicType())
508 {
c5f3a425 509 gp_Lin aLin1 = Handle(Geom_Line)::DownCast (theFirstCurve)->Lin();
510 gp_Lin aLin2 = Handle(Geom_Line)::DownCast (theSecondCurve)->Lin();
60bf98ae 511
512 if (theIsInfinite1)
513 {
514 theFirstPnt1 = ElCLib::Value (ElCLib::Parameter (aLin2, theFirstPnt2), aLin1);
515 theLastPnt1 = ElCLib::Value (ElCLib::Parameter (aLin2, theLastPnt2), aLin1);
516 }
517 else if (theIsInfinite2)
518 {
519 theFirstPnt2 = ElCLib::Value (ElCLib::Parameter (aLin1, theFirstPnt1), aLin2);
520 theLastPnt2 = ElCLib::Value (ElCLib::Parameter (aLin1, theLastPnt1), aLin2);
521 }
522 }
523 else
524 {
525 if (theIsInfinite1 && !theIsInfinite2)
526 {
527 GeomAPI_ProjectPointOnCurve aProjector (theFirstPnt2, theFirstCurve);
528 theFirstPnt1 = theFirstCurve->Value (aProjector.LowerDistanceParameter ());
529
530 aProjector.Init (theLastPnt2, theFirstCurve);
531 theLastPnt1 = theFirstCurve->Value (aProjector.LowerDistanceParameter ());
532 }
533 else if (!theIsInfinite1 && theIsInfinite2)
534 {
535 GeomAPI_ProjectPointOnCurve aProjector (theFirstPnt1, theSecondCurve);
536 theFirstPnt2 = theSecondCurve->Value (aProjector.LowerDistanceParameter ());
537
538 aProjector.Init (theLastPnt1, theSecondCurve);
539 theLastPnt2 = theSecondCurve->Value (aProjector.LowerDistanceParameter ());
540 }
541 else
542 {
543 return Standard_False;
544 }
545 }
546 }
547
548 return Standard_True;
549}
550
7fd59977 551//=======================================================================
552//function : ComputeGeometry
553//purpose : Computes the geometry of the 2 edges in the current wp
a6eb515f 554// and the 'right' geometry of the edges if one doesn't
555// belong to the current working plane.
7fd59977 556// There may be only one curve that can't belong to the
a6eb515f 557// current working plane ( attachement constraint)
7fd59977 558// if the 2 edges belong to the current WP, <WhatProj> = 0
559//
560// indexExt = 0 2 edges are in the current wp
561// indexExt = 1 first edge is not in the current wp
562// indexExt = 2 second edge is not in the current wp
563// if none of the two edges is in the current wp ,
564// it returns Standard_False
565//=======================================================================
60bf98ae 566Standard_Boolean AIS::ComputeGeometry (const TopoDS_Edge& theFirstEdge,
567 const TopoDS_Edge& theSecondEdge,
568 Standard_Integer& theExtIndex,
569 Handle(Geom_Curve)& theFirstCurve,
570 Handle(Geom_Curve)& theSecondCurve,
571 gp_Pnt& theFirstPnt1,
572 gp_Pnt& theLastPnt1,
573 gp_Pnt& theFirstPnt2,
574 gp_Pnt& theLastPnt2,
575 Handle(Geom_Curve)& theExtCurve,
576 Standard_Boolean& theIsInfinite1,
577 Standard_Boolean& theIsInfinite2,
578 const Handle(Geom_Plane)& thePlane)
7fd59977 579{
60bf98ae 580 if (thePlane.IsNull())
581 {
582 return Standard_False;
583 }
584
585 theExtCurve.Nullify();
586 theExtIndex = 0;
587
588 Standard_Real aFirst1, aLast1, aFirst2, aLast2;
589 theIsInfinite1 = theIsInfinite2 = Standard_False;
7fd59977 590
60bf98ae 591 BRepAdaptor_Curve aFirstAdaptor (theFirstEdge);
592 BRepAdaptor_Curve aSecondAdaptor (theSecondEdge);
7fd59977 593
60bf98ae 594 theFirstCurve = Handle(Geom_Curve)::DownCast
595 (aFirstAdaptor.Curve().Curve()->Transformed (aFirstAdaptor.Trsf()));
596 theSecondCurve = Handle(Geom_Curve)::DownCast
597 (aSecondAdaptor.Curve().Curve()->Transformed (aSecondAdaptor.Trsf()));
598
599 if (theFirstCurve->IsInstance (STANDARD_TYPE (Geom_TrimmedCurve)))
600 {
c5f3a425 601 theFirstCurve = Handle(Geom_TrimmedCurve)::DownCast (theFirstCurve)->BasisCurve();
7fd59977 602 }
60bf98ae 603 if (theSecondCurve->IsInstance (STANDARD_TYPE (Geom_TrimmedCurve)))
604 {
c5f3a425 605 theSecondCurve = Handle(Geom_TrimmedCurve)::DownCast (theSecondCurve)->BasisCurve();
7fd59977 606 }
607
60bf98ae 608 aFirst1 = aFirstAdaptor.FirstParameter();
609 aLast1 = aFirstAdaptor.LastParameter();
7fd59977 610
60bf98ae 611 aFirst2 = aSecondAdaptor.FirstParameter();
612 aLast2 = aSecondAdaptor.LastParameter();
613
614 if (theFirstCurve.IsNull() || theSecondCurve.IsNull())
615 {
7fd59977 616 return Standard_False;
60bf98ae 617 }
618
619 Handle(Geom_Curve) aFirstSaved = theFirstCurve;
620 Handle(Geom_Curve) aSecondSaved = theSecondCurve;
621
622 // Checks that the projected curve is not in the plane
623 Standard_Boolean isFirstOnPlane,isSecondOnPlane;
624
625 if ((!ComputeGeomCurve (theFirstCurve, aFirst1, aLast1, theFirstPnt1, theLastPnt1, thePlane, isFirstOnPlane))
626 || (!ComputeGeomCurve( theSecondCurve, aFirst2, aLast2, theFirstPnt2, theLastPnt2, thePlane,isSecondOnPlane)))
627 {
628 return Standard_False;
629 }
630
631 if (Precision::IsInfinite (aFirst1) || Precision::IsInfinite (aLast1))
632 {
633 theIsInfinite1 = Standard_True;
634 theExtIndex = 1;
635 }
636 if (Precision::IsInfinite (aFirst2) || Precision::IsInfinite (aLast2))
637 {
638 theIsInfinite2 = Standard_True;
639 theExtIndex = 2;
640 }
641 if (theIsInfinite1 && theIsInfinite2)
642 {
643 theExtIndex = 0;
644 }
645
646 if (theIsInfinite1 || theIsInfinite2)
647 {
648 if (theFirstCurve->DynamicType() == theSecondCurve->DynamicType())
649 {
c5f3a425 650 gp_Lin aLin1 = Handle(Geom_Line)::DownCast (theFirstCurve)->Lin();
651 gp_Lin aLin2 = Handle(Geom_Line)::DownCast (theSecondCurve)->Lin();
60bf98ae 652
653 if (theExtIndex == 1)
654 {
655 theFirstPnt1 = ElCLib::Value (ElCLib::Parameter (aLin2, theFirstPnt2), aLin1);
656 theLastPnt1 = ElCLib::Value (ElCLib::Parameter (aLin2, theLastPnt2), aLin1);
7fd59977 657 }
60bf98ae 658 else if (theExtIndex == 2)
659 {
660 theFirstPnt2 = ElCLib::Value (ElCLib::Parameter (aLin1, theFirstPnt1), aLin2);
661 theLastPnt2 = ElCLib::Value (ElCLib::Parameter (aLin1, theLastPnt1), aLin2);
7fd59977 662 }
663 }
664 }
665
60bf98ae 666 if (isFirstOnPlane && isSecondOnPlane)
667 {
668 return Standard_True;
669 }
7fd59977 670
60bf98ae 671 if (!isFirstOnPlane && isSecondOnPlane)
672 {// curve 2 only in the plane
673 theExtIndex = 1;
674 theExtCurve = aFirstSaved;
7fd59977 675 }
60bf98ae 676 else if (isFirstOnPlane && !isSecondOnPlane)
677 {// curve 1 only in the plane
678 theExtIndex = 2;
679 theExtCurve = aSecondSaved;
7fd59977 680 }
681 else
60bf98ae 682 {
7fd59977 683 return Standard_False;
60bf98ae 684 }
685
7fd59977 686 return Standard_True;
687}
688
7fd59977 689//=======================================================================
690//function : ComputeGeomCurve
691//purpose : Checks if aCurve belongs to aPlane; if not, projects aCurve in aPlane
692// and returns aCurveproj;
693// Return TRUE if ok
694//=======================================================================
60bf98ae 695Standard_Boolean AIS::ComputeGeomCurve (Handle(Geom_Curve)& aCurve,
696 const Standard_Real first1,
697 const Standard_Real last1,
698 gp_Pnt& FirstPnt1,
699 gp_Pnt& LastPnt1,
700 const Handle(Geom_Plane)& aPlane,
701 Standard_Boolean& isOnPlane)
7fd59977 702{
703 isOnPlane = Standard_True;
7fd59977 704 const Standard_Integer NodeNumber = 20;
705 Standard_Real Delta = (last1 - first1) / (NodeNumber - 1);
706 if (Delta <= Precision::PConfusion())
60bf98ae 707 {
7fd59977 708 Delta = last1 - first1;
60bf98ae 709 }
710
711 gp_Pnt CurPnt(0.0, 0.0, 0.0);
7fd59977 712 Standard_Real CurPar = first1;
713 for (Standard_Integer i = 1; i <= NodeNumber; i++)
60bf98ae 714 {
715 CurPnt = aCurve->Value( CurPar );
716 if (aPlane->Pln().SquareDistance( CurPnt ) > SquareTolerance)
7fd59977 717 {
60bf98ae 718 isOnPlane = Standard_False;
719 break;
7fd59977 720 }
60bf98ae 721 CurPar += Delta;
722 }
723
724 if (!Precision::IsInfinite(first1) && !Precision::IsInfinite(last1))
725 {
726 FirstPnt1 = aCurve->Value (first1);
727 LastPnt1 = aCurve->Value (last1);
728 }
729
730 if (!isOnPlane)
731 {
732 Handle(Geom_Curve) aGeomCurve = GeomProjLib::ProjectOnPlane (aCurve,
733 aPlane,
734 aPlane->Pln().Axis().Direction(),
735 Standard_False);
736 aCurve = aGeomCurve;
737 if (aCurve->IsInstance(STANDARD_TYPE(Geom_TrimmedCurve)))
7fd59977 738 {
c5f3a425 739 aCurve = Handle(Geom_TrimmedCurve)::DownCast (aCurve)->BasisCurve();
7fd59977 740 }
60bf98ae 741 if (! Precision::IsInfinite(first1) && ! Precision::IsInfinite(last1))
742 {
7fd59977 743 FirstPnt1 = AIS::ProjectPointOnPlane( FirstPnt1, aPlane->Pln() );
744 LastPnt1 = AIS::ProjectPointOnPlane( LastPnt1, aPlane->Pln() );
745 }
746 }
747 return Standard_True;
748}
749
7fd59977 750//=======================================================================
751//function : ComputeGeometry
752//purpose : computes the point corresponding to the vertex <aVertex>
753// in the plane <aPlane>. If the vertex is already in the plane
754// <isOnPlane>, <isOnPlane> = true.
755// <point> is the projected vertex in the plane.
756//=======================================================================
7fd59977 757Standard_Boolean AIS::ComputeGeometry(const TopoDS_Vertex& aVertex,
758 gp_Pnt& point,
759 const Handle(Geom_Plane)& aPlane,
760 Standard_Boolean& isOnPlane)
761{
762 point = BRep_Tool::Pnt(aVertex);
763 isOnPlane = aPlane->Pln().Contains(point, Precision::Confusion());
764 if ( !isOnPlane) {
765 point = AIS::ProjectPointOnPlane( point, aPlane->Pln() );
766 }
767 return Standard_True;
768}
769
770//=======================================================================
771//function : GetPlaneFromFace
772//purpose :
773// Returns type of surface which can be Plane or OtherSurface
774//=======================================================================
60bf98ae 775Standard_Boolean AIS::GetPlaneFromFace(const TopoDS_Face& aFace,
7fd59977 776 gp_Pln & aPlane,
777 Handle( Geom_Surface )& aSurf,
778 AIS_KindOfSurface & aSurfType,
60bf98ae 779 Standard_Real & Offset)
7fd59977 780
781{
782 Standard_Boolean Result = Standard_False;
783 BRepAdaptor_Surface surf1( aFace );
784 Handle( Adaptor3d_HSurface ) surf2;
7fd59977 785 Standard_Boolean isOffset = Standard_False;
786
787 if (surf1.GetType() == GeomAbs_OffsetSurface)
60bf98ae 788 {
789 // Extracting Basis Surface
790 surf2 = surf1.BasisSurface();
791 isOffset = Standard_True;
792 }
7fd59977 793 else
794 surf2 = new BRepAdaptor_HSurface( surf1 );
795
796 aSurf = surf1.Surface().Surface();
797 // aSurf->Transform(surf1.Trsf()) ;
798 aSurf = Handle( Geom_Surface )::DownCast( aSurf->Transformed( surf1.Trsf() ) );
799
800 if (surf2->GetType() == GeomAbs_Plane)
60bf98ae 801 {
802 aPlane = surf2->Plane();
803 aSurfType = AIS_KOS_Plane;
804 Offset = 0.;
805 Result = Standard_True;
806 }
807
808 else if (surf2->GetType() == GeomAbs_SurfaceOfExtrusion)
809 {
810 Handle( Adaptor3d_HCurve ) BasisCurve = surf2->BasisCurve();
811 gp_Dir ExtrusionDir = surf2->Direction();
812 if (BasisCurve->GetType() == GeomAbs_Line)
7fd59977 813 {
60bf98ae 814 gp_Lin BasisLine = BasisCurve->Line();
815 gp_Dir LineDir = BasisLine.Direction();
816 gp_Pnt LinePos = BasisLine.Location();
817 gp_Pln thePlane( LinePos, LineDir ^ ExtrusionDir);
818 aPlane = thePlane;
7fd59977 819 aSurfType = AIS_KOS_Plane;
820 Offset = 0.;
821 Result = Standard_True;
822 }
60bf98ae 823 }
7fd59977 824
825 if (Result == Standard_True && isOffset)
60bf98ae 826 {
827 aSurf = (Handle( Geom_OffsetSurface )::DownCast( aSurf ))->Surface();
828 aPlane = (Handle( Geom_Plane )::DownCast( aSurf ))->Pln();
829 Offset = 0.0e0;
830 }
7fd59977 831 if (Result == Standard_False)
60bf98ae 832 {
833 if (isOffset)
7fd59977 834 {
7fd59977 835 Handle( Standard_Type ) TheType = aSurf->DynamicType();
60bf98ae 836 if (TheType == STANDARD_TYPE(Geom_CylindricalSurface) ||
837 TheType == STANDARD_TYPE(Geom_ConicalSurface) ||
838 TheType == STANDARD_TYPE(Geom_SphericalSurface) ||
839 TheType == STANDARD_TYPE(Geom_ToroidalSurface))
840 {
841 aSurf = (Handle( Geom_OffsetSurface )::DownCast( aSurf ))->Surface();
842 Offset = 0.0e0;
843 }
7fd59977 844 else
60bf98ae 845 {
846 Offset = (Handle( Geom_OffsetSurface )::DownCast( aSurf ))->Offset();
847 aSurf = (Handle( Geom_OffsetSurface )::DownCast( aSurf ))->BasisSurface();
848 }
7fd59977 849 }
60bf98ae 850 Handle( Standard_Type ) TheType = aSurf->DynamicType();
851 if (TheType == STANDARD_TYPE(Geom_CylindricalSurface))
852 aSurfType = AIS_KOS_Cylinder;
853 else if (TheType == STANDARD_TYPE(Geom_ConicalSurface))
854 aSurfType = AIS_KOS_Cone;
855 else if (TheType == STANDARD_TYPE(Geom_SphericalSurface))
856 aSurfType = AIS_KOS_Sphere;
857 else if (TheType == STANDARD_TYPE(Geom_ToroidalSurface))
858 aSurfType = AIS_KOS_Torus;
859 else if (TheType == STANDARD_TYPE(Geom_SurfaceOfRevolution))
860 aSurfType = AIS_KOS_Revolution;
861 else if (TheType == STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))
862 aSurfType = AIS_KOS_Extrusion;
863 else
864 aSurfType = AIS_KOS_OtherSurface;
865 }
7fd59977 866 return Result;
867}
868
869
870//=======================================================================
871//function : ProjectPointOnPlane
872//purpose :
873//=======================================================================
874
875gp_Pnt AIS::ProjectPointOnPlane( const gp_Pnt & aPoint, const gp_Pln & aPlane )
876{
877 gp_Vec aVec( aPlane.Location(), aPoint );
878 gp_Vec Normal = aPlane.Axis().Direction();
879 Normal = (aVec * Normal) * Normal;
880
881 return ( aPoint.Translated( -Normal ) );
882}
883
884//=======================================================================
885//function : ProjectPointOnLine
886//purpose :
887//=======================================================================
888
889gp_Pnt AIS::ProjectPointOnLine( const gp_Pnt & aPoint, const gp_Lin & aLine )
890{
891 gp_XYZ LinLoc = aLine.Location().XYZ();
892 gp_XYZ LinDir = aLine.Direction().XYZ();
893 Standard_Real Parameter = (aPoint.XYZ() - LinLoc) * LinDir;
894 gp_Pnt Result( LinLoc + Parameter * LinDir );
895 return Result;
896}
897
7fd59977 898//=======================================================================
899//function : InitFaceLength
900//purpose :
901//=======================================================================
60bf98ae 902void AIS::InitFaceLength (const TopoDS_Face& aFace,
903 gp_Pln & aPlane,
904 Handle(Geom_Surface) & aSurface,
905 AIS_KindOfSurface & aSurfaceType,
906 Standard_Real & anOffset)
7fd59977 907{
908 AIS::GetPlaneFromFace( aFace, aPlane, aSurface, aSurfaceType, anOffset );
909
910 if (Abs( anOffset ) > Precision::Confusion())
911 {
912 aSurface = new Geom_OffsetSurface( aSurface, anOffset );
913 anOffset = 0.0e0;
914 }
915
916}
917
918//=======================================================================
60bf98ae 919//function : InitAngleBetweenPlanarFaces
7fd59977 920//purpose :
921//=======================================================================
60bf98ae 922Standard_Boolean AIS::InitAngleBetweenPlanarFaces (const TopoDS_Face& theFirstFace,
923 const TopoDS_Face& theSecondFace,
924 gp_Pnt & theCenter,
925 gp_Pnt & theFirstAttach,
926 gp_Pnt & theSecondAttach,
927 const Standard_Boolean theIsFirstPointSet)
7fd59977 928{
60bf98ae 929 Handle(Geom_Plane) aFirstPlane = Handle(Geom_Plane)::DownCast (BRep_Tool::Surface (theFirstFace));
930 Handle(Geom_Plane) aSecondPlane = Handle(Geom_Plane)::DownCast (BRep_Tool::Surface (theSecondFace));
7fd59977 931
60bf98ae 932 GeomAPI_IntSS aPlaneIntersector (aFirstPlane, aSecondPlane, Precision::Confusion());
933
934 // Fails if two planes haven't only one intersection line.
935 if (!aPlaneIntersector.IsDone())
936 {
937 return Standard_False;
938 }
7fd59977 939
60bf98ae 940 if (aPlaneIntersector.NbLines() != 1)
941 {
942 return Standard_False;
943 }
7fd59977 944
60bf98ae 945 // Get intersect line.
946 Handle(Geom_Curve) anIntersectCurve = aPlaneIntersector.Line (1);
947
948 Handle(Geom_Line) anIntersectLine = Handle(Geom_Line)::DownCast (anIntersectCurve);
949
950 if (anIntersectLine.IsNull())
951 {
952 return Standard_False;
7fd59977 953 }
954
60bf98ae 955 gp_Lin anIntersectLin = anIntersectLine->Lin();
956
957 gp_Pnt aFirstCenter, aSecondCenter;
958 Standard_Real anU1Min, anU1Max, aV1Min, aV1Max;
959 Standard_Real anU2Min, anU2Max, aV2Min, aV2Max;
7fd59977 960
60bf98ae 961 BRepTools::UVBounds (theFirstFace, anU1Min, anU1Max, aV1Min, aV1Max);
962 BRepTools::UVBounds (theSecondFace, anU2Min, anU2Max, aV2Min, aV2Max);
963
964 // Get first and second attach.
965 if (theIsFirstPointSet)
966 {
967 GeomAPI_ProjectPointOnSurf aProjector (theFirstAttach, aFirstPlane);
968 if (!aProjector.IsDone())
7fd59977 969 {
60bf98ae 970 return Standard_False;
7fd59977 971 }
7fd59977 972
60bf98ae 973 aFirstCenter = aProjector.Point (1);
974 }
7fd59977 975 else
60bf98ae 976 {
977 aFirstCenter = aFirstPlane->Value ((anU1Min + anU1Max) * 0.5, (aV1Min + aV1Max) * 0.5);
978 }
979
980 aSecondCenter = aSecondPlane->Value ((anU2Min + anU2Max) * 0.5, (aV2Min + aV2Max) * 0.5);
981
982 GeomAPI_ProjectPointOnCurve aProj (aFirstCenter, anIntersectCurve);
983 theCenter = aProj.NearestPoint();
984
985 gp_Vec aFirstNormal = anIntersectLin.Direction() ^ aFirstPlane->Pln().Axis().Direction();
986 if (aFirstNormal * gp_Vec (theCenter, aFirstCenter) < 0.0)
987 {
988 aFirstNormal.Reverse();
989 }
990 theFirstAttach = theCenter.Translated (aFirstNormal);
991
992 gp_Vec aSecondNormal = anIntersectLin.Direction() ^ aSecondPlane->Pln().Axis().Direction();
993 if (aSecondNormal * gp_Vec (theCenter, aSecondCenter) < 0.0)
994 {
995 aSecondNormal.Reverse();
996 }
997 theSecondAttach = theCenter.Translated (aSecondNormal);
998
999 return Standard_True;
7fd59977 1000}
60bf98ae 1001
1002//=======================================================================
1003//function : InitAngleBetweenCurvilinearFaces
1004//purpose :
1005//=======================================================================
1006Standard_Boolean AIS::InitAngleBetweenCurvilinearFaces (const TopoDS_Face& theFirstFace,
1007 const TopoDS_Face& theSecondFace,
1008 const AIS_KindOfSurface theFirstSurfType,
1009 const AIS_KindOfSurface theSecondSurfType,
1010 gp_Pnt& theCenter,
1011 gp_Pnt& theFirstAttach,
1012 gp_Pnt& theSecondAttach,
1013 const Standard_Boolean theIsFirstPointSet)
7fd59977 1014{
60bf98ae 1015 Handle(Geom_Surface) aFirstSurf = BRep_Tool::Surface (theFirstFace);
1016 Handle(Geom_Surface) aSecondSurf = BRep_Tool::Surface (theSecondFace);
1017
1018 // Find intersection curve between two surfaces.
1019 GeomAPI_IntSS aSurfaceIntersector (aFirstSurf, aSecondSurf, Precision::Confusion());
1020
1021 // Fails if two planes haven't only one intersection line.
1022 if (!aSurfaceIntersector.IsDone())
1023 {
1024 return Standard_False;
1025 }
1026
1027 if (aSurfaceIntersector.NbLines() != 1)
1028 {
1029 return Standard_False;
1030 }
1031
1032 // Get intersect line.
1033 Handle(Geom_Curve) anIntersectCurve = aSurfaceIntersector.Line (1);
1034
1035 Handle(Geom_Line) aFirstLine, aSecondLine;
1036 Standard_Real aFirstU = 0.0;
1037 Standard_Real aFirstV = 0.0;
1038
1039 if (theIsFirstPointSet)
1040 {
1041 GeomAPI_ProjectPointOnSurf aProjector (theFirstAttach, aFirstSurf);
1042 if (!aProjector.IsDone())
7fd59977 1043 {
60bf98ae 1044 return Standard_False;
7fd59977 1045 }
7fd59977 1046
60bf98ae 1047 theFirstAttach = aProjector.Point (1);
1048 }
1049 else
1050 {
1051 theFirstAttach = aFirstSurf->Value (aFirstU, aFirstV);
1052 }
1053
1054 aFirstLine = Handle(Geom_Line)::DownCast (aFirstSurf->UIso (aFirstU));
1055
1056 if (theSecondSurfType == AIS_KOS_Cylinder)
1057 {
1058 Handle(Geom_CylindricalSurface) aCylinder = Handle(Geom_CylindricalSurface)::DownCast (aSecondSurf);
1059
1060 Standard_Real aSecondU = aCylinder->Cylinder().XAxis().Direction().Angle(
1061 gce_MakeDir (ProjectPointOnLine (theFirstAttach,
1062 gp_Lin (aCylinder->Cylinder().Axis())),
1063 theFirstAttach));
1064
1065 aSecondLine = Handle(Geom_Line)::DownCast (aCylinder->UIso (aSecondU));
1066 }
1067 else if (theSecondSurfType == AIS_KOS_Cone)
1068 {
1069 Handle(Geom_ConicalSurface) aCone = Handle(Geom_ConicalSurface)::DownCast (aSecondSurf);
1070
1071 gp_Dir anXdirection = aCone->Cone().XAxis().Direction();
1072
1073 gp_Dir aToFirstAttach = gce_MakeDir (ProjectPointOnLine (theFirstAttach,
1074 gp_Lin (aCone->Cone().Axis())),
1075 theFirstAttach);
1076
1077 Standard_Real aSecondU = anXdirection.Angle (aToFirstAttach);
1078
1079 // Check sign
1080 if (!anXdirection.IsEqual (aToFirstAttach, Precision::Angular()) &&
1081 !anXdirection.IsOpposite (aToFirstAttach, Precision::Angular()) &&
1082 (anXdirection ^ aToFirstAttach) * aCone->Cone().Axis().Direction() < 0.0)
7fd59977 1083 {
60bf98ae 1084 aSecondU = 2*M_PI - aSecondU;
7fd59977 1085 }
60bf98ae 1086 aSecondLine = Handle( Geom_Line )::DownCast (aCone->UIso(aSecondU));
1087 }
1088 else
1089 {
1090 return Standard_False;
1091 }
1092
1093 // If angle can be computed between two lines.
1094 if (!(aFirstLine->Lin().Direction().IsEqual (aSecondLine->Lin().Direction(), Precision::Angular() )) &&
1095 !(aFirstLine->Lin().Direction().IsOpposite (aSecondLine->Lin().Direction(), Precision::Angular())))
1096 {
1097 GeomAPI_ExtremaCurveCurve anIntersector (aFirstLine, aSecondLine);
1098 anIntersector.Points (1, theCenter, theCenter);
1099
1100 // Move theFirstAttach on aFirstLine if it is on theCenter.
1101 if (theCenter.SquareDistance(theFirstAttach ) <= SquareTolerance)
7fd59977 1102 {
60bf98ae 1103 gp_Vec aDir (aFirstLine->Lin().Direction());
1104 theFirstAttach = theCenter.Translated (aDir);
1105
1106 // theFirstAttach should be on theFirstSurf.
1107 Standard_Real anU, aV;
1108 if (theFirstSurfType == AIS_KOS_Cylinder)
1109 {
1110 ElSLib::Parameters ((Handle(Geom_CylindricalSurface)::DownCast (aFirstSurf))->Cylinder(),
1111 theFirstAttach, anU, aV);
1112
1113 theFirstAttach = ElSLib::Value (aFirstU, aV,
1114 (Handle( Geom_CylindricalSurface )::DownCast (aFirstSurf))->Cylinder() );
1115 }
1116 else if (theFirstSurfType == AIS_KOS_Cone)
1117 {
1118 ElSLib::Parameters ((Handle(Geom_ConicalSurface)::DownCast (aFirstSurf))->Cone(),
1119 theFirstAttach, anU, aV);
1120 theFirstAttach = ElSLib::Value (aFirstU, aV,
1121 (Handle(Geom_ConicalSurface)::DownCast (aFirstSurf))->Cone());
1122 }
1123 else
1124 {
1125 return Standard_False;
1126 }
7fd59977 1127 }
1128
60bf98ae 1129 // Find theSecondAttach
1130 GeomAPI_ProjectPointOnSurf aProjector (theFirstAttach, aSecondSurf);
1131 if (!aProjector.IsDone())
1132 {
1133 return Standard_False;
7fd59977 1134 }
60bf98ae 1135 Quantity_Parameter anU, aV;
1136 aProjector.LowerDistanceParameters (anU, aV);
1137 theSecondAttach = aSecondSurf->Value (anU, aV);
1138 }
1139 else // aFirstLine and aSecondLine are coincident
1140 {
1141 gp_Vec aDir (aFirstLine->Lin().Direction());
1142 theFirstAttach = theCenter.Translated (aDir);
1143 theSecondAttach = theCenter.Translated (-aDir);
1144 }
1145 return Standard_True;
7fd59977 1146}
1147
60bf98ae 1148//=======================================================================
1149//function : ComputeLengthBetweenCurvilinearFaces
1150//purpose :
1151//=======================================================================
1152void AIS::InitLengthBetweenCurvilinearFaces (const TopoDS_Face& theFirstFace,
1153 const TopoDS_Face& theSecondFace,
1154 Handle(Geom_Surface)& theFirstSurf,
1155 Handle(Geom_Surface)& theSecondSurf,
1156 gp_Pnt& theFirstAttach,
1157 gp_Pnt& theSecondAttach,
1158 gp_Dir& theDirOnPlane)
7fd59977 1159{
1160 GeomAPI_ProjectPointOnSurf aProjector;
60bf98ae 1161 Quantity_Parameter aPU, aPV;
1162
1163 TopExp_Explorer anExplorer (theFirstFace, TopAbs_VERTEX);
1164
1165 theFirstAttach = BRep_Tool::Pnt (TopoDS::Vertex (anExplorer.Current()));
1166 aProjector.Init (theFirstAttach, theFirstSurf);
1167
1168 theFirstAttach = aProjector.NearestPoint();
1169 aProjector.LowerDistanceParameters (aPU, aPV);
1170
1171 gp_Vec aD1U, aD1V;
1172 theFirstSurf->D1 (aPU, aPV, theFirstAttach, aD1U, aD1V);
1173
1174 if (aD1U.SquareMagnitude() <= SquareTolerance || aD1V.SquareMagnitude() <= SquareTolerance)
1175 {
1176 theFirstAttach = AIS::Farest (theFirstFace, theFirstAttach);
1177 aProjector.Init (theFirstAttach, theFirstSurf);
1178 aProjector.LowerDistanceParameters (aPU, aPV);
1179 theFirstSurf->D1 (aPU, aPV, theFirstAttach, aD1U, aD1V);
1180 }
7fd59977 1181
60bf98ae 1182 aD1U.Normalize();
1183 aD1V.Normalize();
1184
1185 theDirOnPlane = gp_Dir (aD1U);
1186
1187 gp_Dir aFirstSurfN = gp_Dir (aD1U ^ aD1V);
1188
1189 aProjector.Init (theFirstAttach, theSecondSurf);
1190
1191 Standard_Integer aBestPointIndex = 0;
1192 Quantity_Length aMinDist = RealLast();
1193 gp_Dir aLocalDir;
1194
1195 for (Standard_Integer aPointIt = 1; aPointIt <= aProjector.NbPoints(); aPointIt++)
1196 {
1197 aProjector.Parameters (aPointIt, aPU, aPV);
1198
1199 theSecondSurf->D1 (aPU, aPV, theSecondAttach, aD1U, aD1V);
1200
1201 aLocalDir = aD1U.SquareMagnitude() <= SquareTolerance || aD1V.SquareMagnitude() <= SquareTolerance
1202 ? gp_Dir (gp_Vec (theFirstAttach, aProjector.Point (aPointIt)))
1203 : gp_Dir (aD1U ^ aD1V);
1204
1205 if (aFirstSurfN.IsParallel (aLocalDir, Precision::Angular()) && aProjector.Distance (aPointIt) < aMinDist)
7fd59977 1206 {
60bf98ae 1207 aBestPointIndex = aPointIt;
1208 aMinDist = aProjector.Distance (aPointIt);
7fd59977 1209 }
60bf98ae 1210 }
7fd59977 1211
60bf98ae 1212 if (aBestPointIndex == 0)
1213 {
1214 theSecondAttach = theFirstAttach;
1215 }
1216 else
1217 {
1218 theSecondAttach = aProjector.Point (aBestPointIndex);
1219 aProjector.Parameters (aBestPointIndex, aPU, aPV);
1220
1221 // Now there is projection of FirstAttach onto SecondSurf in aProjector
1222 BRepTopAdaptor_FClass2d aClassifier (theSecondFace, Precision::Confusion());
1223
1224 TopAbs_State aState =
1225 aClassifier.Perform (gp_Pnt2d (aPU, aPV), theSecondSurf->IsUPeriodic() || theSecondSurf->IsVPeriodic());
1226
1227 if (aState == TopAbs_OUT || aState == TopAbs_UNKNOWN)
1228 {
1229 theSecondAttach = AIS::Nearest (theSecondFace, theSecondAttach);
7fd59977 1230 }
60bf98ae 1231 }
7fd59977 1232}
60bf98ae 1233
7fd59977 1234gp_Pnt AIS::TranslatePointToBound( const gp_Pnt & aPoint, const gp_Dir & aDir, const Bnd_Box & aBndBox )
1235{
1236 if (aBndBox.IsOut( aPoint ))
1237 return aPoint;
1238 else
1239 {
1240 gp_Pnt Result(0.0,0.0,0.0);
1241 TColStd_Array2OfReal Bound( 1, 3, 1, 2 );
1242 TColStd_Array1OfReal Origin( 1, 3 );
1243 TColStd_Array1OfReal Dir( 1, 3 );
1244 Standard_Real t;
1245
1246 aBndBox.Get( Bound(1,1), Bound(2,1), Bound(3,1), Bound(1,2), Bound(2,2), Bound(3,2) );
1247 aPoint.Coord( Origin(1), Origin(2), Origin(3) );
1248 aDir.Coord( Dir(1), Dir(2), Dir(3) );
1249
1250 Bnd_Box EnlargedBox = aBndBox;
1251 EnlargedBox.Enlarge( aBndBox.GetGap() + Precision::Confusion() );
1252
1253 Standard_Boolean IsFound = Standard_False;
1254 for (Standard_Integer i = 1; i <= 3; i++)
1255 {
1256 if (Abs( Dir( i ) ) <= gp::Resolution())
1257 continue;
1258 for (Standard_Integer j = 1; j <= 2; j++)
1259 {
1260 t = (Bound( i, j ) - Origin( i )) / Dir( i );
1261 if (t < 0.0e0)
1262 continue;
1263 Result = aPoint.Translated( gp_Vec( aDir ) * t );
1264 if (! EnlargedBox.IsOut( Result ))
1265 {
1266 IsFound = Standard_True;
1267 break;
1268 }
1269 }
1270 if (IsFound) break;
1271 }
1272 return Result;
1273 }
1274}
1275
1276
1277//=======================================================================
1278//function : InDomain
1279//purpose :
1280//=======================================================================
1281
1282Standard_Boolean AIS::InDomain(const Standard_Real fpar,
1283 const Standard_Real lpar,
1284 const Standard_Real para)
1285{
1286 if (fpar >= 0.) {
1287 if(lpar > fpar)
1288 return ((para >= fpar) && (para <= lpar));
1289 else { // fpar > lpar
c6541a0c 1290 Standard_Real delta = 2*M_PI-fpar;
7fd59977 1291 Standard_Real lp, par, fp;
1292 lp = lpar + delta;
1293 par = para + delta;
c6541a0c
D		 1294 while(lp > 2*M_PI) lp-=2*M_PI;
1295 while(par > 2*M_PI) par-=2*M_PI;
7fd59977 1296 fp = 0.;
1297 return ((par >= fp) && (par <= lp));
1298 }
1299
1300 }
c6541a0c 1301 if (para >= (fpar+2*M_PI)) return Standard_True;
7fd59977 1302 if (para <= lpar) return Standard_True;
1303 return Standard_False;
1304}
1305
1306//=======================================================================
1307//function : DistanceFromApex
1308//purpose : calculates parametric length arc of ellipse
1309//=======================================================================
1310
1311Standard_Real AIS::DistanceFromApex(const gp_Elips & elips,
1312 const gp_Pnt & Apex,
1313 const Standard_Real par)
1314{
1315 Standard_Real dist;
1316 Standard_Real parApex = ElCLib::Parameter ( elips, Apex );
c6541a0c 1317 if(parApex == 0.0 || parApex == M_PI)
7fd59977 1318 {//Major case
1319 if(parApex == 0.0) //pos Apex
c6541a0c 1320 dist = (par < M_PI) ? par : (2*M_PI - par);
7fd59977 1321 else //neg Apex
c6541a0c 1322 dist = (par < M_PI) ? ( M_PI - par) : ( par - M_PI );
7fd59977 1323 }
1324 else
1325 {// Minor case
c6541a0c 1326 if(parApex == M_PI / 2) //pos Apex
7fd59977 1327 {
c6541a0c 1328 if(par <= parApex + M_PI && par > parApex) // 3/2*M_PI < par < M_PI/2
7fd59977 1329 dist = par - parApex;
1330 else
1331 {
c6541a0c
D		 1332 if(par > parApex + M_PI) // 3/2*M_PI < par < 2*M_PI
1333 dist = 2*M_PI - par + parApex;
7fd59977 1334 else
1335 dist = parApex - par;
1336 }
1337 }
c6541a0c 1338 else //neg Apex == 3/2*M_PI
7fd59977 1339 {
c6541a0c 1340 if(par <= parApex && par >= M_PI/2) // M_PI/2 < par < 3/2*M_PI
7fd59977 1341 dist = parApex - par;
1342 else
1343 {
c6541a0c 1344 if(par > parApex) // 3/2*M_PI < par < 2*M_PI
7fd59977 1345 dist = par - parApex;
1346 else
c6541a0c 1347 dist = par + M_PI/2; // 0 < par < M_PI/2
7fd59977 1348 }
1349 }
1350 }
1351 return dist;
1352}
1353
1354//=======================================================================
1355//function : NearestApex
1356//purpose :
1357//=======================================================================
1358
1359gp_Pnt AIS::NearestApex(const gp_Elips & elips,
1360 const gp_Pnt & pApex,
1361 const gp_Pnt & nApex,
1362 const Standard_Real fpara,
1363 const Standard_Real lpara,
1364 Standard_Boolean & IsInDomain)
1365{
1366 Standard_Real parP, parN;
1367 gp_Pnt EndOfArrow(0.0,0.0,0.0);
1368 IsInDomain = Standard_True;
1369 parP = ElCLib::Parameter ( elips, pApex );
1370 if(InDomain(fpara, lpara, parP)) EndOfArrow = pApex;
1371 else
1372 {
1373 parN = ElCLib::Parameter ( elips, nApex );
1374 if(InDomain(fpara, lpara, parN)) EndOfArrow = nApex;
1375 else {
1376 IsInDomain = Standard_False;
1377 Standard_Real posd = Min(DistanceFromApex (elips,pApex, fpara),
1378 DistanceFromApex (elips,pApex, lpara));
1379 Standard_Real negd = Min(DistanceFromApex (elips,nApex, fpara),
1380 DistanceFromApex (elips,nApex, lpara));
1381 if( posd < negd )
1382 EndOfArrow = pApex;
1383 else
1384 EndOfArrow = nApex;
1385 }
1386 }
1387 return EndOfArrow;
1388}
1389
1390//=======================================================================
1391//function : ComputeProjEdgePresentation
1392//purpose :
1393//=======================================================================
1394
6262338c 1395void AIS::ComputeProjEdgePresentation (const Handle(Prs3d_Presentation)& aPresentation,
1396 const Handle(Prs3d_Drawer)& aDrawer,
1397 const TopoDS_Edge& anEdge,
1398 const Handle(Geom_Curve)& ProjCurve,
1399 const gp_Pnt& FirstP,
1400 const gp_Pnt& LastP,
1401 const Quantity_NameOfColor aColor,
1402 const Standard_Real aWidth,
1403 const Aspect_TypeOfLine aProjTOL,
1404 const Aspect_TypeOfLine aCallTOL)
7fd59977 1405{
6262338c 1406 if (!aDrawer->HasOwnWireAspect()){
7fd59977 1407 aDrawer->SetWireAspect(new Prs3d_LineAspect(aColor,aProjTOL,2.));}
1408 else {
1409 // CLE
1410 // const Handle(Prs3d_LineAspect)& li = aDrawer->WireAspect();
1411 Handle(Prs3d_LineAspect) li = aDrawer->WireAspect();
1412 // ENDCLE
1413 li->SetColor(aColor);
1414 li->SetTypeOfLine(aProjTOL);
1415 li->SetWidth(aWidth);
1416 }
1417
1418 Standard_Real pf, pl;
1419 TopLoc_Location loc;
1420 Handle(Geom_Curve) curve;
1421 Standard_Boolean isInfinite;
1422 curve = BRep_Tool::Curve(anEdge,loc,pf,pl);
1423 isInfinite = (Precision::IsInfinite(pf) || Precision::IsInfinite(pl));
1424
1425 TopoDS_Edge E;
1426
0d969553 1427 // Calculate presentation of the edge
7fd59977 1428 if (ProjCurve->IsInstance(STANDARD_TYPE(Geom_Line)) ) {
1429 // CLE
c5f3a425 1430 // Handle(Geom_Line) gl (Handle(Geom_Line)::DownCast (ProjCurve));
1431 Handle(Geom_Line) gl = Handle(Geom_Line)::DownCast (ProjCurve);
7fd59977 1432 // ENDCLE
1433 if ( !isInfinite) {
1434 pf = ElCLib::Parameter(gl->Lin(),FirstP);
1435 pl = ElCLib::Parameter(gl->Lin(),LastP);
1436 BRepBuilderAPI_MakeEdge MakEd(gl->Lin(), pf, pl);
1437 E = MakEd.Edge();
1438 }
1439 else {
1440 BRepBuilderAPI_MakeEdge MakEd(gl->Lin());
1441 E = MakEd.Edge();
1442 }
1443 }
1444 else if (ProjCurve->IsInstance(STANDARD_TYPE(Geom_Circle)) ) {
1445 // CLE
c5f3a425 1446 // Handle(Geom_Circle) gc (Handle(Geom_Circle)::DownCast (ProjCurve));
1447 Handle(Geom_Circle) gc = Handle(Geom_Circle)::DownCast (ProjCurve);
7fd59977 1448 // ENDCLE
1449 pf = ElCLib::Parameter(gc->Circ(),FirstP);
1450 pl = ElCLib::Parameter(gc->Circ(),LastP);
1451 BRepBuilderAPI_MakeEdge MakEd(gc->Circ(),pf, pl);
1452 E = MakEd.Edge();
1453 }
5ad8c033 1454 StdPrs_WFShape::Add (aPresentation, E, aDrawer);
7fd59977 1455
0d969553 1456 //Calculate the presentation of line connections
7fd59977 1457 aDrawer->WireAspect()->SetTypeOfLine(aCallTOL);
1458 if (!isInfinite) {
1459 gp_Pnt ppf(0.0,0.0,0.0), ppl(0.0,0.0,0.0);
1460 ppf = BRep_Tool::Pnt( TopExp::FirstVertex(TopoDS::Edge(anEdge)));
1461 ppl = BRep_Tool::Pnt( TopExp::LastVertex(TopoDS::Edge(anEdge)));
1462
1463 // it is patch!
5ad8c033 1464 if (FirstP.SquareDistance (ppf) > SquareTolerance)
1465 {
1466 BRepBuilderAPI_MakeEdge MakEd1 (FirstP, ppf);
1467 StdPrs_WFShape::Add (aPresentation, MakEd1.Edge(), aDrawer);
1468 }
7fd59977 1469 else
5ad8c033 1470 {
1471 BRepBuilderAPI_MakeVertex MakVert1 (FirstP);
1472 StdPrs_WFShape::Add (aPresentation, MakVert1.Vertex(), aDrawer);
1473 }
1474 if (LastP.SquareDistance (ppl) > SquareTolerance)
1475 {
1476 BRepBuilderAPI_MakeEdge MakEd2 (LastP, ppl);
1477 StdPrs_WFShape::Add (aPresentation, MakEd2.Edge(), aDrawer);
1478 }
7fd59977 1479 else
5ad8c033 1480 {
1481 BRepBuilderAPI_MakeVertex MakVert2 (LastP);
1482 StdPrs_WFShape::Add (aPresentation, MakVert2.Vertex(), aDrawer);
1483 }
7fd59977 1484/*
5ad8c033 1485 BRepBuilderAPI_MakeEdge MakEd1 (FirstP, ppf);
1486 StdPrs_WFShape::Add (aPresentation, MakEd1.Edge(), aDrawer);
1487 BRepBuilderAPI_MakeEdge MakEd2 (LastP, ppl);
1488 StdPrs_WFShape::Add (aPresentation, MakEd2.Edge(), aDrawer);
7fd59977 1489*/
1490 }
1491}
1492
1493//=======================================================================
1494//function : ComputeProjVertexPresentation
1495//purpose :
1496//=======================================================================
1497
6262338c 1498void AIS::ComputeProjVertexPresentation (const Handle( Prs3d_Presentation )& aPresentation,
1499 const Handle( Prs3d_Drawer )& aDrawer,
1500 const TopoDS_Vertex& aVertex,
1501 const gp_Pnt& ProjPoint,
1502 const Quantity_NameOfColor aColor,
1503 const Standard_Real aWidth,
1504 const Aspect_TypeOfMarker aProjTOM,
1505 const Aspect_TypeOfLine aCallTOL)
7fd59977 1506{
6262338c 1507 if (!aDrawer->HasOwnPointAspect()){
7fd59977 1508 aDrawer->SetPointAspect(new Prs3d_PointAspect(aProjTOM, aColor,1));}
1509 else {
1510 // CLE
1511 // const Handle(Prs3d_PointAspect)& pa = aDrawer->PointAspect();
1512 Handle(Prs3d_PointAspect) pa = aDrawer->PointAspect();
1513 // ENDCLE
1514 pa->SetColor(aColor);
1515 pa->SetTypeOfMarker(aProjTOM);
1516 }
1517
0d969553 1518 // calculate the projection
7fd59977 1519 StdPrs_Point::Add(aPresentation, new Geom_CartesianPoint(ProjPoint), aDrawer);
1520
6262338c 1521 if (!aDrawer->HasOwnWireAspect()){
7fd59977 1522 aDrawer->SetWireAspect(new Prs3d_LineAspect(aColor,aCallTOL,2.));}
1523 else {
1524 // CLE
1525 // const Handle(Prs3d_LineAspect)& li = aDrawer->WireAspect();
1526 Handle(Prs3d_LineAspect) li = aDrawer->WireAspect();
1527 // ENDCLE
1528 li->SetColor(aColor);
1529 li->SetTypeOfLine(aCallTOL);
1530 li->SetWidth(aWidth);
1531 }
1532
0d969553 1533 // If the points are not mixed...
5ad8c033 1534 if (!ProjPoint.IsEqual (BRep_Tool::Pnt (aVertex), Precision::Confusion()))
1535 {
0d969553 1536 // calculate the lines of recall
5ad8c033 1537 BRepBuilderAPI_MakeEdge MakEd (ProjPoint, BRep_Tool::Pnt (aVertex));
1538 StdPrs_WFShape::Add (aPresentation, MakEd.Edge(), aDrawer);
7fd59977 1539 }
1540}
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