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0024328: Revolution of a wire generates two interfered faces.
[occt.git] / src / IntPatch / IntPatch_Intersection.cxx
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b311480e 1// Created by: Modelization
2// Copyright (c) 1999-2012 OPEN CASCADE SAS
3//
4// The content of this file is subject to the Open CASCADE Technology Public
5// License Version 6.5 (the "License"). You may not use the content of this file
6// except in compliance with the License. Please obtain a copy of the License
7// at http://www.opencascade.org and read it completely before using this file.
8//
9// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
10// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
11//
12// The Original Code and all software distributed under the License is
13// distributed on an "AS IS" basis, without warranty of any kind, and the
14// Initial Developer hereby disclaims all such warranties, including without
15// limitation, any warranties of merchantability, fitness for a particular
16// purpose or non-infringement. Please see the License for the specific terms
17// and conditions governing the rights and limitations under the License.
18
7fd59977 19
20#include <IntPatch_Intersection.ixx>
21
22#include <IntPatch_ALineToWLine.hxx>
23#include <IntPatch_GLine.hxx>
24#include <IntPatch_ALine.hxx>
25#include <IntPatch_WLine.hxx>
26#include <IntPatch_RLine.hxx>
27#include <IntPatch_PrmPrmIntersection.hxx>
28#include <IntPatch_ImpPrmIntersection.hxx>
29#include <IntPatch_ImpImpIntersection.hxx>
30#include <IntSurf_Quadric.hxx>
31
32#include <stdio.h>
33
34#define DEBUG 0
788cbaf4 35static const Standard_Integer aNbPointsInALine = 200;
7fd59977 36
37//======================================================================
38// function: SequenceOfLine
39//======================================================================
40const IntPatch_SequenceOfLine& IntPatch_Intersection::SequenceOfLine() const { return(slin); }
41
42//======================================================================
43// function: IntPatch_Intersection
44//======================================================================
45IntPatch_Intersection::IntPatch_Intersection ()
46 : done(Standard_False),
47 //empt, tgte, oppo,
48 myTolArc(0.0), myTolTang(0.0),
49 myUVMaxStep(0.0), myFleche(0.0),
50 myIsStartPnt(Standard_False)
51 //myU1Start, myV1Start, myU2Start, myV2Start
52{
53}
54
55//======================================================================
56// function: IntPatch_Intersection
57//======================================================================
58IntPatch_Intersection::IntPatch_Intersection(const Handle(Adaptor3d_HSurface)& S1,
59 const Handle(Adaptor3d_TopolTool)& D1,
60 const Handle(Adaptor3d_HSurface)& S2,
61 const Handle(Adaptor3d_TopolTool)& D2,
62 const Standard_Real TolArc,
63 const Standard_Real TolTang)
64 : done(Standard_False),
65 //empt, tgte, oppo,
66 myTolArc(TolArc), myTolTang(TolTang),
67 myUVMaxStep(0.0), myFleche(0.0),
68 myIsStartPnt(Standard_False)
69 //myU1Start, myV1Start, myU2Start, myV2Start
70{
71 if(myTolArc<1e-8) myTolArc=1e-8;
72 if(myTolTang<1e-8) myTolTang=1e-8;
73 if(myTolArc>0.5) myTolArc=0.5;
74 if(myTolTang>0.5) myTolTang=0.5;
75 Perform(S1,D1,S2,D2,TolArc,TolTang);
76}
77
78//======================================================================
79// function: IntPatch_Intersection
80//======================================================================
81IntPatch_Intersection::IntPatch_Intersection(const Handle(Adaptor3d_HSurface)& S1,
82 const Handle(Adaptor3d_TopolTool)& D1,
83 const Standard_Real TolArc,
84 const Standard_Real TolTang)
85 : done(Standard_False),
86 //empt, tgte, oppo,
87 myTolArc(TolArc), myTolTang(TolTang),
88 myUVMaxStep(0.0), myFleche(0.0),
89 myIsStartPnt(Standard_False)
90 //myU1Start, myV1Start, myU2Start, myV2Start
91{
92 Perform(S1,D1,TolArc,TolTang);
93}
94
95//======================================================================
96// function: SetTolerances
97//======================================================================
98void IntPatch_Intersection::SetTolerances(const Standard_Real TolArc,
99 const Standard_Real TolTang,
100 const Standard_Real UVMaxStep,
101 const Standard_Real Fleche)
102{
103 myTolArc = TolArc;
104 myTolTang = TolTang;
105 myUVMaxStep = UVMaxStep;
106 myFleche = Fleche;
107 if(myTolArc<1e-8) myTolArc=1e-8;
108 if(myTolTang<1e-8) myTolTang=1e-8;
109 if(myTolArc>0.5) myTolArc=0.5;
110 if(myTolTang>0.5) myTolTang=0.5;
111 if(myFleche<1.0e-3) myFleche=1e-3;
112 if(myUVMaxStep<1.0e-3) myUVMaxStep=1e-3;
113 if(myFleche>10) myFleche=10;
114 if(myUVMaxStep>0.5) myUVMaxStep=0.5;
115}
116
117//======================================================================
118// function: Perform
119//======================================================================
120void IntPatch_Intersection::Perform(const Handle(Adaptor3d_HSurface)& S1,
121 const Handle(Adaptor3d_TopolTool)& D1,
122 const Standard_Real TolArc,
123 const Standard_Real TolTang)
124{
125 myTolArc = TolArc;
126 myTolTang = TolTang;
127 if(myFleche == 0.0) myFleche = 0.01;
128 if(myUVMaxStep==0.0) myUVMaxStep = 0.01;
129
130 done = Standard_True;
131 spnt.Clear();
132 slin.Clear();
133
134 empt = Standard_True;
135 tgte = Standard_False;
136 oppo = Standard_False;
137
138 switch (S1->GetType())
139 {
140 case GeomAbs_Plane:
141 case GeomAbs_Cylinder:
142 case GeomAbs_Sphere:
143 case GeomAbs_Cone:
144 case GeomAbs_Torus: break;
145 default:
146 {
147 IntPatch_PrmPrmIntersection interpp;
148 interpp.Perform(S1,D1,TolArc,TolTang,myFleche,myUVMaxStep);
149 if (interpp.IsDone())
150 {
151 done = Standard_True;
152 tgte = Standard_False;
153 empt = interpp.IsEmpty();
154 const Standard_Integer nblm = interpp.NbLines();
155 for (Standard_Integer i=1; i<=nblm; i++) slin.Append(interpp.Line(i));
156 }
157 }
158 break;
159 }
160}
161
162/////////////////////////////////////////////////////////////////////////////
163// These several support functions provide methods which can help basic //
164// algorithm to intersect infinite surfaces of the following types: //
165// //
166// a.) SurfaceOfExtrusion; //
167// b.) SurfaceOfRevolution; //
168// c.) OffsetSurface. //
169// //
170/////////////////////////////////////////////////////////////////////////////
171#include <TColgp_Array1OfXYZ.hxx>
172#include <TColgp_Array1OfPnt.hxx>
173#include <TColgp_SequenceOfPnt.hxx>
174#include <Extrema_ExtPS.hxx>
175#include <Extrema_POnSurf.hxx>
176#include <Geom2d_Curve.hxx>
177#include <Geom2dAPI_InterCurveCurve.hxx>
178#include <GeomAdaptor.hxx>
179#include <GeomAdaptor_HCurve.hxx>
180#include <GeomAdaptor_Curve.hxx>
181#include <GeomAdaptor_Surface.hxx>
182#include <Handle_GeomAdaptor_HSurface.hxx>
183#include <Geom_Plane.hxx>
184#include <ProjLib_ProjectOnPlane.hxx>
185#include <GeomProjLib.hxx>
186#include <ElCLib.hxx>
187#include <Geom_TrimmedCurve.hxx>
188#include <Geom_Surface.hxx>
189#include <Geom_SurfaceOfLinearExtrusion.hxx>
190#include <Geom_OffsetSurface.hxx>
191#include <Geom_SurfaceOfRevolution.hxx>
192#include <Geom_RectangularTrimmedSurface.hxx>
193
194//===============================================================
195//function: FUN_GetMinMaxXYZPnt
196//===============================================================
197static void FUN_GetMinMaxXYZPnt( const Handle(Adaptor3d_HSurface)& S,
198 gp_Pnt& pMin, gp_Pnt& pMax )
199{
200 const Standard_Real DU = 0.25 * Abs(S->LastUParameter() - S->FirstUParameter());
201 const Standard_Real DV = 0.25 * Abs(S->LastVParameter() - S->FirstVParameter());
202 Standard_Real tMinXYZ = RealLast();
203 Standard_Real tMaxXYZ = -tMinXYZ;
204 gp_Pnt PUV, ptMax, ptMin;
205 for(Standard_Real U = S->FirstUParameter(); U <= S->LastUParameter(); U += DU)
206 {
207 for(Standard_Real V = S->FirstVParameter(); V <= S->LastVParameter(); V += DV)
208 {
209 S->D0(U,V,PUV);
210 const Standard_Real cXYZ = PUV.XYZ().Modulus();
211 if(cXYZ > tMaxXYZ) { tMaxXYZ = cXYZ; ptMax = PUV; }
212 if(cXYZ < tMinXYZ) { tMinXYZ = cXYZ; ptMin = PUV; }
213 }
214 }
215 pMin = ptMin;
216 pMax = ptMax;
217}
218//==========================================================================
219//function: FUN_TrimInfSurf
220//==========================================================================
221static void FUN_TrimInfSurf(const gp_Pnt& Pmin,
222 const gp_Pnt& Pmax,
223 const Handle(Adaptor3d_HSurface)& InfSurf,
224 const Standard_Real& AlternativeTrimPrm,
225 Handle(Adaptor3d_HSurface)& TrimS)
226{
227 Standard_Real TP = AlternativeTrimPrm;
228 Extrema_ExtPS ext1(Pmin, InfSurf->Surface(), 1.e-7, 1.e-7);
229 Extrema_ExtPS ext2(Pmax, InfSurf->Surface(), 1.e-7, 1.e-7);
230 if(ext1.IsDone() || ext2.IsDone())
231 {
232 Standard_Real Umax = -1.e+100, Umin = 1.e+100, Vmax = -1.e+100, Vmin = 1.e+100, cU, cV;
233 if(ext1.IsDone())
234 {
235 for(Standard_Integer i = 1; i <= ext1.NbExt(); i++)
236 {
237 const Extrema_POnSurf & pons = ext1.Point(i);
238 pons.Parameter(cU,cV);
239 if(cU > Umax) Umax = cU;
240 if(cU < Umin) Umin = cU;
241 if(cV > Vmax) Vmax = cV;
242 if(cV < Vmin) Vmin = cV;
243 }
244 }
245 if(ext2.IsDone())
246 {
247 for(Standard_Integer i = 1; i <= ext2.NbExt(); i++)
248 {
249 const Extrema_POnSurf & pons = ext2.Point(i);
250 pons.Parameter(cU,cV);
251 if(cU > Umax) Umax = cU;
252 if(cU < Umin) Umin = cU;
253 if(cV > Vmax) Vmax = cV;
254 if(cV < Vmin) Vmin = cV;
255 }
256 }
257 TP = Max(Abs(Umin),Max(Abs(Umax),Max(Abs(Vmin),Abs(Vmax))));
258 }
259 if(TP == 0.) { TrimS = InfSurf; return; }
260 else
261 {
262 const Standard_Boolean Uinf = Precision::IsNegativeInfinite(InfSurf->FirstUParameter());
263 const Standard_Boolean Usup = Precision::IsPositiveInfinite(InfSurf->LastUParameter());
264 const Standard_Boolean Vinf = Precision::IsNegativeInfinite(InfSurf->FirstVParameter());
265 const Standard_Boolean Vsup = Precision::IsPositiveInfinite(InfSurf->LastVParameter());
266 Handle(Adaptor3d_HSurface) TmpSS;
267 Standard_Integer IsTrimed = 0;
268 const Standard_Real tp = 1000.0 * TP;
269 if(Vinf && Vsup) { TrimS = InfSurf->VTrim(-tp, tp, 1.0e-7); IsTrimed = 1; }
270 if(Vinf && !Vsup){ TrimS = InfSurf->VTrim(-tp, InfSurf->LastVParameter(), 1.0e-7); IsTrimed = 1; }
271 if(!Vinf && Vsup){ TrimS = InfSurf->VTrim(InfSurf->FirstVParameter(), tp, 1.0e-7); IsTrimed = 1; }
272 if(IsTrimed)
273 {
274 TmpSS = TrimS;
275 if(Uinf && Usup) TrimS = TmpSS->UTrim(-tp, tp, 1.0e-7);
276 if(Uinf && !Usup) TrimS = TmpSS->UTrim(-tp, InfSurf->LastUParameter(), 1.0e-7);
277 if(!Uinf && Usup) TrimS = TmpSS->UTrim(InfSurf->FirstUParameter(), tp, 1.0e-7);
278 }
279 else
280 {
281 if(Uinf && Usup) TrimS = InfSurf->UTrim(-tp, tp, 1.0e-7);
282 if(Uinf && !Usup) TrimS = InfSurf->UTrim(-tp, InfSurf->LastUParameter(), 1.0e-7);
283 if(!Uinf && Usup) TrimS = InfSurf->UTrim(InfSurf->FirstUParameter(), tp, 1.0e-7);
284 }
285 }
286}
287//================================================================================
288//function: FUN_GetUiso
289//================================================================================
290static void FUN_GetUiso(const Handle(Geom_Surface)& GS,
291 const GeomAbs_SurfaceType& T,
292 const Standard_Real& FirstV,
293 const Standard_Real& LastV,
294 const Standard_Boolean& IsVC,
295 const Standard_Boolean& IsVP,
296 const Standard_Real& U,
297 Handle(Geom_Curve)& I)
298{
299 if(T != GeomAbs_OffsetSurface)
300 {
301 Handle(Geom_Curve) gc = GS->UIso(U);
c6541a0c 302 if(IsVP && (FirstV == 0.0 && LastV == (2.*M_PI))) I = gc;
7fd59977 303 else
304 {
305 Handle(Geom_TrimmedCurve) gtc = new Geom_TrimmedCurve(gc,FirstV,LastV);
306 //szv:I = Handle(Geom_Curve)::DownCast(gtc);
307 I = gtc;
308 }
309 }
310 else//OffsetSurface
311 {
312 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&GS;
313 const Handle(Geom_Surface) bs = gos->BasisSurface();
314 Handle(Geom_Curve) gcbs = bs->UIso(U);
315 GeomAdaptor_Curve gac(gcbs);
316 const GeomAbs_CurveType GACT = gac.GetType();
317 if(IsVP || IsVC || GACT == GeomAbs_BSplineCurve || GACT == GeomAbs_BezierCurve || Abs(LastV - FirstV) < 1.e+5)
318 {
319 Handle(Geom_Curve) gc = gos->UIso(U);
c6541a0c 320 if(IsVP && (FirstV == 0.0 && LastV == (2*M_PI))) I = gc;
7fd59977 321 else
322 {
323 Handle(Geom_TrimmedCurve) gtc = new Geom_TrimmedCurve(gc,FirstV,LastV);
324 //szv:I = Handle(Geom_Curve)::DownCast(gtc);
325 I = gtc;
326 }
327 }
328 else//Offset Line, Parab, Hyperb
329 {
330 Standard_Real VmTr, VMTr;
331 if(GACT != GeomAbs_Hyperbola)
332 {
333 if(FirstV >= 0. && LastV >= 0.){ VmTr = FirstV; VMTr = ((LastV - FirstV) > 1.e+4) ? (FirstV + 1.e+4) : LastV; }
334 else if(FirstV < 0. && LastV < 0.){ VMTr = LastV; VmTr = ((FirstV - LastV) < -1.e+4) ? (LastV - 1.e+4) : FirstV; }
335 else { VmTr = (FirstV < -1.e+4) ? -1.e+4 : FirstV; VMTr = (LastV > 1.e+4) ? 1.e+4 : LastV; }
336 }
337 else//Hyperbola
338 {
339 if(FirstV >= 0. && LastV >= 0.)
340 {
341 if(FirstV > 4.) return;
342 VmTr = FirstV; VMTr = (LastV > 4.) ? 4. : LastV;
343 }
344 else if(FirstV < 0. && LastV < 0.)
345 {
346 if(LastV < -4.) return;
347 VMTr = LastV; VmTr = (FirstV < -4.) ? -4. : FirstV;
348 }
349 else { VmTr = (FirstV < -4.) ? -4. : FirstV; VMTr = (LastV > 4.) ? 4. : LastV; }
350 }
351 //Make trimmed surface
352 Handle(Geom_RectangularTrimmedSurface) rts = new Geom_RectangularTrimmedSurface(gos,VmTr,VMTr,Standard_True);
353 I = rts->UIso(U);
354 }
355 }
356}
357//================================================================================
358//function: FUN_GetViso
359//================================================================================
360static void FUN_GetViso(const Handle(Geom_Surface)& GS,
361 const GeomAbs_SurfaceType& T,
362 const Standard_Real& FirstU,
363 const Standard_Real& LastU,
364 const Standard_Boolean& IsUC,
365 const Standard_Boolean& IsUP,
366 const Standard_Real& V,
367 Handle(Geom_Curve)& I)
368{
369 if(T != GeomAbs_OffsetSurface)
370 {
371 Handle(Geom_Curve) gc = GS->VIso(V);
c6541a0c 372 if(IsUP && (FirstU == 0.0 && LastU == (2*M_PI))) I = gc;
7fd59977 373 else
374 {
375 Handle(Geom_TrimmedCurve) gtc = new Geom_TrimmedCurve(gc,FirstU,LastU);
376 //szv:I = Handle(Geom_Curve)::DownCast(gtc);
377 I = gtc;
378 }
379 }
380 else//OffsetSurface
381 {
382 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&GS;
383 const Handle(Geom_Surface) bs = gos->BasisSurface();
384 Handle(Geom_Curve) gcbs = bs->VIso(V);
385 GeomAdaptor_Curve gac(gcbs);
386 const GeomAbs_CurveType GACT = gac.GetType();
387 if(IsUP || IsUC || GACT == GeomAbs_BSplineCurve || GACT == GeomAbs_BezierCurve || Abs(LastU - FirstU) < 1.e+5)
388 {
389 Handle(Geom_Curve) gc = gos->VIso(V);
c6541a0c 390 if(IsUP && (FirstU == 0.0 && LastU == (2*M_PI))) I = gc;
7fd59977 391 else
392 {
393 Handle(Geom_TrimmedCurve) gtc = new Geom_TrimmedCurve(gc,FirstU,LastU);
394 //szv:I = Handle(Geom_Curve)::DownCast(gtc);
395 I = gtc;
396 }
397 }
398 else//Offset Line, Parab, Hyperb
399 {
400 Standard_Real UmTr, UMTr;
401 if(GACT != GeomAbs_Hyperbola)
402 {
403 if(FirstU >= 0. && LastU >= 0.){ UmTr = FirstU; UMTr = ((LastU - FirstU) > 1.e+4) ? (FirstU + 1.e+4) : LastU; }
404 else if(FirstU < 0. && LastU < 0.){ UMTr = LastU; UmTr = ((FirstU - LastU) < -1.e+4) ? (LastU - 1.e+4) : FirstU; }
405 else { UmTr = (FirstU < -1.e+4) ? -1.e+4 : FirstU; UMTr = (LastU > 1.e+4) ? 1.e+4 : LastU; }
406 }
407 else//Hyperbola
408 {
409 if(FirstU >= 0. && LastU >= 0.)
410 {
411 if(FirstU > 4.) return;
412 UmTr = FirstU; UMTr = (LastU > 4.) ? 4. : LastU;
413 }
414 else if(FirstU < 0. && LastU < 0.)
415 {
416 if(LastU < -4.) return;
417 UMTr = LastU; UmTr = (FirstU < -4.) ? -4. : FirstU;
418 }
419 else { UmTr = (FirstU < -4.) ? -4. : FirstU; UMTr = (LastU > 4.) ? 4. : LastU; }
420 }
421 //Make trimmed surface
422 Handle(Geom_RectangularTrimmedSurface) rts = new Geom_RectangularTrimmedSurface(gos,UmTr,UMTr,Standard_True);
423 I = rts->VIso(V);
424 }
425 }
426}
427//================================================================================
428//function: FUN_PL_Intersection
429//================================================================================
430static void FUN_PL_Intersection(const Handle(Adaptor3d_HSurface)& S1,
431 const GeomAbs_SurfaceType& T1,
432 const Handle(Adaptor3d_HSurface)& S2,
433 const GeomAbs_SurfaceType& T2,
434 Standard_Boolean& IsOk,
435 TColgp_SequenceOfPnt& SP,
436 gp_Vec& DV)
437{
438 IsOk = Standard_False;
439 // 1. Check: both surfaces have U(V)isos - lines.
440 DV = gp_Vec(0.,0.,1.);
441 Standard_Boolean isoS1isLine[2] = {0, 0};
442 Standard_Boolean isoS2isLine[2] = {0, 0};
443 Handle(Geom_Curve) C1, C2;
444 const GeomAdaptor_Surface & gas1 = *(GeomAdaptor_Surface*)(&(S1->Surface()));
445 const GeomAdaptor_Surface & gas2 = *(GeomAdaptor_Surface*)(&(S2->Surface()));
446 const Handle(Geom_Surface) gs1 = gas1.Surface();
447 const Handle(Geom_Surface) gs2 = gas2.Surface();
448 Standard_Real MS1[2], MS2[2];
449 MS1[0] = 0.5 * (S1->LastUParameter() + S1->FirstUParameter());
450 MS1[1] = 0.5 * (S1->LastVParameter() + S1->FirstVParameter());
451 MS2[0] = 0.5 * (S2->LastUParameter() + S2->FirstUParameter());
452 MS2[1] = 0.5 * (S2->LastVParameter() + S2->FirstVParameter());
453 if(T1 == GeomAbs_SurfaceOfExtrusion) isoS1isLine[0] = Standard_True;
454 else if(!S1->IsVPeriodic() && !S1->IsVClosed()) {
455 if(T1 != GeomAbs_OffsetSurface) C1 = gs1->UIso(MS1[0]);
456 else {
457 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&gs1;
458 const Handle(Geom_Surface) bs = gos->BasisSurface();
459 C1 = bs->UIso(MS1[0]);
460 }
461 GeomAdaptor_Curve gac(C1);
462 if(gac.GetType() == GeomAbs_Line) isoS1isLine[0] = Standard_True;
463 }
464 if(!S1->IsUPeriodic() && !S1->IsUClosed()) {
465 if(T1 != GeomAbs_OffsetSurface) C1 = gs1->VIso(MS1[1]);
466 else {
467 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&gs1;
468 const Handle(Geom_Surface) bs = gos->BasisSurface();
469 C1 = bs->VIso(MS1[1]);
470 }
471 GeomAdaptor_Curve gac(C1);
472 if(gac.GetType() == GeomAbs_Line) isoS1isLine[1] = Standard_True;
473 }
474 if(T2 == GeomAbs_SurfaceOfExtrusion) isoS2isLine[0] = Standard_True;
475 else if(!S2->IsVPeriodic() && !S2->IsVClosed()) {
476 if(T2 != GeomAbs_OffsetSurface) C2 = gs2->UIso(MS2[0]);
477 else {
478 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&gs2;
479 const Handle(Geom_Surface) bs = gos->BasisSurface();
480 C2 = bs->UIso(MS2[0]);
481 }
482 GeomAdaptor_Curve gac(C2);
483 if(gac.GetType() == GeomAbs_Line) isoS2isLine[0] = Standard_True;
484 }
485 if(!S2->IsUPeriodic() && !S2->IsUClosed()) {
486 if(T2 != GeomAbs_OffsetSurface) C2 = gs2->VIso(MS2[1]);
487 else {
488 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&gs2;
489 const Handle(Geom_Surface) bs = gos->BasisSurface();
490 C2 = bs->VIso(MS2[1]);
491 }
492 GeomAdaptor_Curve gac(C2);
493 if(gac.GetType() == GeomAbs_Line) isoS2isLine[1] = Standard_True;
494 }
495 Standard_Boolean IsBothLines = ((isoS1isLine[0] || isoS1isLine[1]) &&
496 (isoS2isLine[0] || isoS2isLine[1]));
497 if(!IsBothLines){
498 return;
499 }
500 // 2. Check: Uiso lines of both surfaces are collinear.
501 gp_Pnt puvS1, puvS2;
502 gp_Vec derS1[2], derS2[2];
503 S1->D1(MS1[0], MS1[1], puvS1, derS1[0], derS1[1]);
504 S2->D1(MS2[0], MS2[1], puvS2, derS2[0], derS2[1]);
505 C1.Nullify(); C2.Nullify();
506 Standard_Integer iso = 0;
507 if(isoS1isLine[0] && isoS2isLine[0] &&
508 derS1[1].IsParallel(derS2[1],Precision::Angular())) {
509 iso = 1;
510 FUN_GetViso(gs1,T1,S1->FirstUParameter(),S1->LastUParameter(),
511 S1->IsUClosed(),S1->IsUPeriodic(),MS1[1],C1);
512 FUN_GetViso(gs2,T2,S2->FirstUParameter(),S2->LastUParameter(),
513 S2->IsUClosed(),S2->IsUPeriodic(),MS2[1],C2);
514 }
515 else if(isoS1isLine[0] && isoS2isLine[1] &&
516 derS1[1].IsParallel(derS2[0],Precision::Angular())) {
517 iso = 1;
518 FUN_GetViso(gs1,T1,S1->FirstUParameter(),S1->LastUParameter(),
519 S1->IsUClosed(),S1->IsUPeriodic(),MS1[1],C1);
520 FUN_GetUiso(gs2,T2,S2->FirstVParameter(),S2->LastVParameter(),
521 S2->IsVClosed(),S2->IsVPeriodic(),MS2[0],C2);
522 }
523 else if(isoS1isLine[1] && isoS2isLine[0] &&
524 derS1[0].IsParallel(derS2[1],Precision::Angular())) {
525 iso = 0;
526 FUN_GetUiso(gs1,T1,S1->FirstVParameter(),S1->LastVParameter(),
527 S1->IsVClosed(),S1->IsVPeriodic(),MS1[0],C1);
528 FUN_GetViso(gs2,T2,S2->FirstUParameter(),S2->LastUParameter(),
529 S2->IsUClosed(),S2->IsUPeriodic(),MS2[1],C2);
530 }
531 else if(isoS1isLine[1] && isoS2isLine[1] &&
532 derS1[0].IsParallel(derS2[0],Precision::Angular())) {
533 iso = 0;
534 FUN_GetUiso(gs1,T1,S1->FirstVParameter(),S1->LastVParameter(),
535 S1->IsVClosed(),S1->IsVPeriodic(),MS1[0],C1);
536 FUN_GetUiso(gs2,T2,S2->FirstVParameter(),S2->LastVParameter(),
537 S2->IsVClosed(),S2->IsVPeriodic(),MS2[0],C2);
538 }
539 else {
540 IsOk = Standard_False;
541 return;
542 }
543 IsOk = Standard_True;
544 // 3. Make intersections of V(U)isos
545 if(C1.IsNull() || C2.IsNull()) return;
546 DV = derS1[iso];
547 Handle(Geom_Plane) GPln = new Geom_Plane(gp_Pln(puvS1,gp_Dir(DV)));
548 Handle(Geom_Curve) C1Prj =
549 GeomProjLib::ProjectOnPlane(C1,GPln,gp_Dir(DV),Standard_True);
550 Handle(Geom_Curve) C2Prj =
551 GeomProjLib::ProjectOnPlane(C2,GPln,gp_Dir(DV),Standard_True);
552 if(C1Prj.IsNull() || C2Prj.IsNull()) return;
553 Handle(Geom2d_Curve) C1Prj2d =
554 GeomProjLib::Curve2d(C1Prj,*(Handle_Geom_Surface *)&GPln);
555 Handle(Geom2d_Curve) C2Prj2d =
556 GeomProjLib::Curve2d(C2Prj,*(Handle_Geom_Surface *)&GPln);
557 Geom2dAPI_InterCurveCurve ICC(C1Prj2d,C2Prj2d,1.0e-7);
558 if(ICC.NbPoints() > 0 )
559 {
560 for(Standard_Integer ip = 1; ip <= ICC.NbPoints(); ip++)
561 {
562 gp_Pnt2d P = ICC.Point(ip);
563 gp_Pnt P3d = ElCLib::To3d(gp_Ax2(puvS1,gp_Dir(DV)),P);
564 SP.Append(P3d);
565 }
566 }
567}
568//================================================================================
569//function: FUN_NewFirstLast
570//================================================================================
571static void FUN_NewFirstLast(const GeomAbs_CurveType& ga_ct,
572 const Standard_Real& Fst,
573 const Standard_Real& Lst,
574 const Standard_Real& TrVal,
575 Standard_Real& NewFst,
576 Standard_Real& NewLst,
577 Standard_Boolean& NeedTr)
578{
579 NewFst = Fst; NewLst = Lst; NeedTr = Standard_False;
580 switch (ga_ct)
581 {
582 case GeomAbs_Line:
583 case GeomAbs_Parabola:
584 {
585 if(Abs(Lst - Fst) > TrVal)
586 {
587 if(Fst >= 0. && Lst >= 0.)
588 {
589 NewFst = Fst;
590 NewLst = ((Fst + TrVal) < Lst) ? (Fst + TrVal) : Lst;
591 }
592 if(Fst < 0. && Lst < 0.)
593 {
594 NewLst = Lst;
595 NewFst = ((Lst - TrVal) > Fst) ? (Lst - TrVal) : Fst;
596 }
597 else
598 {
599 NewFst = (Fst < -TrVal) ? -TrVal : Fst;
600 NewLst = (Lst > TrVal) ? TrVal : Lst;
601 }
602 NeedTr = Standard_True;
603 }
604 break;
605 }
606 case GeomAbs_Hyperbola:
607 {
608 if(Abs(Lst - Fst) > 10.)
609 {
610 if(Fst >= 0. && Lst >= 0.)
611 {
612 if(Fst > 4.) return;
613 NewFst = Fst;
614 NewLst = (Lst > 4.) ? 4. : Lst;
615 }
616 if(Fst < 0. && Lst < 0.)
617 {
618 if(Lst < -4.) return;
619 NewLst = Lst;
620 NewFst = (Fst < -4.) ? -4. : Fst;
621 }
622 else
623 {
624 NewFst = (Fst < -4.) ? -4. : Fst;
625 NewLst = (Lst > 4.) ? 4. : Lst;
626 }
627 NeedTr = Standard_True;
628 }
629 break;
630 }
631 }
632}
633//================================================================================
634//function: FUN_TrimBothSurf
635//================================================================================
636static void FUN_TrimBothSurf(const Handle(Adaptor3d_HSurface)& S1,
637 const GeomAbs_SurfaceType& T1,
638 const Handle(Adaptor3d_HSurface)& S2,
639 const GeomAbs_SurfaceType& T2,
640 const Standard_Real& TV,
641 Handle(Adaptor3d_HSurface)& NS1,
642 Handle(Adaptor3d_HSurface)& NS2)
643{
644 const GeomAdaptor_Surface & gas1 = *(GeomAdaptor_Surface*)(&(S1->Surface()));
645 const GeomAdaptor_Surface & gas2 = *(GeomAdaptor_Surface*)(&(S2->Surface()));
646 const Handle(Geom_Surface) gs1 = gas1.Surface();
647 const Handle(Geom_Surface) gs2 = gas2.Surface();
648 const Standard_Real UM1 = 0.5 * (S1->LastUParameter() + S1->FirstUParameter());
649 const Standard_Real UM2 = 0.5 * (S2->LastUParameter() + S2->FirstUParameter());
650 const Standard_Real VM1 = 0.5 * (S1->LastVParameter() + S1->FirstVParameter());
651 const Standard_Real VM2 = 0.5 * (S2->LastVParameter() + S2->FirstVParameter());
652 Handle(Geom_Curve) visoS1, visoS2, uisoS1, uisoS2;
653 if(T1 != GeomAbs_OffsetSurface){ visoS1 = gs1->VIso(VM1); uisoS1 = gs1->UIso(UM1); }
654 else
655 {
656 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&gs1;
657 const Handle(Geom_Surface) bs = gos->BasisSurface();
658 visoS1 = bs->VIso(VM1); uisoS1 = bs->UIso(UM1);
659 }
660 if(T2 != GeomAbs_OffsetSurface){ visoS2 = gs2->VIso(VM2); uisoS2 = gs2->UIso(UM2); }
661 else
662 {
663 const Handle(Geom_OffsetSurface) gos = *(Handle_Geom_OffsetSurface*)&gs2;
664 const Handle(Geom_Surface) bs = gos->BasisSurface();
665 visoS2 = bs->VIso(VM2); uisoS2 = bs->UIso(UM2);
666 }
667 if(uisoS1.IsNull() || uisoS2.IsNull() || visoS1.IsNull() || visoS2.IsNull()){ NS1 = S1; NS2 = S2; return; }
668 GeomAdaptor_Curve gau1(uisoS1);
669 GeomAdaptor_Curve gav1(visoS1);
670 GeomAdaptor_Curve gau2(uisoS2);
671 GeomAdaptor_Curve gav2(visoS2);
672 GeomAbs_CurveType GA_U1 = gau1.GetType();
673 GeomAbs_CurveType GA_V1 = gav1.GetType();
674 GeomAbs_CurveType GA_U2 = gau2.GetType();
675 GeomAbs_CurveType GA_V2 = gav2.GetType();
676 Standard_Boolean TrmU1 = Standard_False;
677 Standard_Boolean TrmV1 = Standard_False;
678 Standard_Boolean TrmU2 = Standard_False;
679 Standard_Boolean TrmV2 = Standard_False;
680 Standard_Real V1S1,V2S1,U1S1,U2S1, V1S2,V2S2,U1S2,U2S2;
681 FUN_NewFirstLast(GA_U1,S1->FirstVParameter(),S1->LastVParameter(),TV,V1S1,V2S1,TrmV1);
682 FUN_NewFirstLast(GA_V1,S1->FirstUParameter(),S1->LastUParameter(),TV,U1S1,U2S1,TrmU1);
683 FUN_NewFirstLast(GA_U2,S2->FirstVParameter(),S2->LastVParameter(),TV,V1S2,V2S2,TrmV2);
684 FUN_NewFirstLast(GA_V2,S2->FirstUParameter(),S2->LastUParameter(),TV,U1S2,U2S2,TrmU2);
685 if(TrmV1) NS1 = S1->VTrim(V1S1, V2S1, 1.0e-7);
686 if(TrmV2) NS2 = S2->VTrim(V1S2, V2S2, 1.0e-7);
687 if(TrmU1)
688 {
689 if(TrmV1)
690 {
691 Handle(Adaptor3d_HSurface) TS = NS1;
692 NS1 = TS->UTrim(U1S1, U2S1, 1.0e-7);
693 }
694 else NS1 = S1->UTrim(U1S1, U2S1, 1.0e-7);
695 }
696 if(TrmU2)
697 {
698 if(TrmV2)
699 {
700 Handle(Adaptor3d_HSurface) TS = NS2;
701 NS2 = TS->UTrim(U1S2, U2S2, 1.0e-7);
702 }
703 else NS2 = S2->UTrim(U1S2, U2S2, 1.0e-7);
704 }
705}
706
707//=======================================================================
708//function : Perform
709//purpose :
710//=======================================================================
788cbaf4 711void IntPatch_Intersection::Perform(const Handle(Adaptor3d_HSurface)& theS1,
712 const Handle(Adaptor3d_TopolTool)& theD1,
713 const Handle(Adaptor3d_HSurface)& theS2,
714 const Handle(Adaptor3d_TopolTool)& theD2,
7fd59977 715 const Standard_Real TolArc,
788cbaf4 716 const Standard_Real TolTang,
717 const Standard_Boolean isGeomInt)
718{
7fd59977 719 myTolArc = TolArc;
720 myTolTang = TolTang;
788cbaf4 721 if(myFleche <= Precision::PConfusion())
722 myFleche = 0.01;
723 if(myUVMaxStep <= Precision::PConfusion())
724 myUVMaxStep = 0.01;
725
7fd59977 726 done = Standard_False;
727 spnt.Clear();
728 slin.Clear();
729 empt = Standard_True;
730 tgte = Standard_False;
731 oppo = Standard_False;
732
788cbaf4 733 GeomAbs_SurfaceType typs1 = theS1->GetType();
734 GeomAbs_SurfaceType typs2 = theS2->GetType();
7fd59977 735
736 Standard_Boolean TreatAsBiParametric = Standard_False;
788cbaf4 737 if(typs1 == GeomAbs_Cone)
738 {
739 const gp_Cone Con1 = theS1->Cone();
740 const Standard_Real a1 = Abs(Con1.SemiAngle());
741 if((a1 < 0.02) || (a1 > 1.55))
742 {
743 if(typs2==GeomAbs_Plane)
744 {
745 if(a1 < 0.02)
746 {
747 const gp_Pln Plan2 = theS2->Plane();
748 const gp_Dir axec = Con1.Axis().Direction();
749 const gp_Dir axep = Plan2.Axis().Direction();
750 const Standard_Real ps = Abs(axec.Dot(axep));
751 if(ps < 0.015)
752 {
753 TreatAsBiParametric = Standard_True;
754 }
755 }
7fd59977 756 }
788cbaf4 757 else
758 TreatAsBiParametric = Standard_True;
7fd59977 759 }
760 }
788cbaf4 761
762 if(typs2 == GeomAbs_Cone)
763 {
764 const gp_Cone Con2 = theS2->Cone();
765 const Standard_Real a2 = Abs(Con2.SemiAngle());
766 if((a2 < 0.02) || (a2 > 1.55))
767 {
768 if(typs1 == GeomAbs_Plane)
769 {
770 if(a2 < 0.02)
771 {
772 const gp_Pln Plan1 = theS1->Plane();
773 const gp_Dir axec = Con2.Axis().Direction();
774 const gp_Dir axep = Plan1.Axis().Direction();
775 const Standard_Real ps = Abs(axec.Dot(axep));
776 if(ps<0.015)
777 {
778 TreatAsBiParametric = Standard_True;
779 }
780 }
7fd59977 781 }
788cbaf4 782 else
783 TreatAsBiParametric = Standard_True;
7fd59977 784 }
788cbaf4 785
7fd59977 786 //// modified by jgv, 15.12.02 for OCC565 ////
b92a64cc 787 if (typs1 == GeomAbs_Cone && TreatAsBiParametric)
788cbaf4 788 {
789 const gp_Cone Con1 = theS1->Cone();
790 const Standard_Real a1 = Abs(Con1.SemiAngle());
b92a64cc 791 //if collinear, treat as canonical
792 const gp_Ax1 A1 = Con1.Axis(), A2 = Con2.Axis();
793 const gp_Lin L1(A1);
794 if (A1.IsParallel(A2,Precision::Angular()) &&
795 (L1.Distance(A2.Location()) <= Precision::Confusion()))
788cbaf4 796 {
b92a64cc 797 TreatAsBiParametric = Standard_False;
7fd59977 798 }
788cbaf4 799 else if (a1 > 1.55 && a2 > 1.55) //quasi-planes: if same domain, treat as canonic
800 {
801 const gp_Ax1 A1 = Con1.Axis(), A2 = Con2.Axis();
802 if (A1.IsParallel(A2,Precision::Angular()))
803 {
804 const gp_Pnt Apex1 = Con1.Apex(), Apex2 = Con2.Apex();
805 const gp_Pln Plan1( Apex1, A1.Direction() );
806 if (Plan1.Distance( Apex2 ) <= Precision::Confusion())
807 {
808 TreatAsBiParametric = Standard_False;
809 }
810 }
7fd59977 811 }
bf0ba813 812 }// if (typs1 == GeomAbs_Cone) {
813 }// if(typs2 == GeomAbs_Cone) {
788cbaf4 814
815 if(theD1->DomainIsInfinite() || theD2->DomainIsInfinite()) {
bf0ba813 816 TreatAsBiParametric= Standard_False;
817 }
7fd59977 818
819// Modified by skv - Mon Sep 26 14:58:30 2005 Begin
820// if(TreatAsBiParametric) { typs1 = typs2 = GeomAbs_BezierSurface; }
788cbaf4 821 if(TreatAsBiParametric)
822 {
7fd59977 823 if (typs1 == GeomAbs_Cone && typs2 == GeomAbs_Plane)
824 typs1 = GeomAbs_BezierSurface; // Using Imp-Prm Intersector
825 else if (typs1 == GeomAbs_Plane && typs2 == GeomAbs_Cone)
826 typs2 = GeomAbs_BezierSurface; // Using Imp-Prm Intersector
827 else {
828 // Using Prm-Prm Intersector
829 typs1 = GeomAbs_BezierSurface;
830 typs2 = GeomAbs_BezierSurface;
831 }
832 }
833// Modified by skv - Mon Sep 26 14:58:30 2005 End
834
835 // Surface type definition
836 Standard_Integer ts1 = 0;
837 switch (typs1)
838 {
839 case GeomAbs_Plane:
840 case GeomAbs_Cylinder:
841 case GeomAbs_Sphere:
842 case GeomAbs_Cone: ts1 = 1; break;
843 default: break;
844 }
788cbaf4 845
7fd59977 846 Standard_Integer ts2 = 0;
847 switch (typs2)
848 {
849 case GeomAbs_Plane:
850 case GeomAbs_Cylinder:
851 case GeomAbs_Sphere:
852 case GeomAbs_Cone: ts2 = 1; break;
853 default: break;
854 }
788cbaf4 855
7fd59977 856 // Possible intersection types: 1. ts1 == ts2 == 1 <Geom-Geom>
857 // 2. ts1 != ts2 <Geom-Param>
858 // 3. ts1 == ts2 == 0 <Param-Param>
859
860 // Geom - Geom
861 if(ts1 == ts2 && ts1 == 1)
862 {
788cbaf4 863 const Standard_Boolean RestrictLine = Standard_True;
864 IntSurf_ListOfPntOn2S ListOfPnts;
865 ListOfPnts.Clear();
866 if(isGeomInt)
867 {
868 GeomGeomPerfom(theS1, theD1, theS2, theD2, TolArc, TolTang, ListOfPnts, RestrictLine, typs1, typs2);
869 }
870 else
871 {
872 ParamParamPerfom(theS1, theD1, theS2, theD2, TolArc, TolTang, ListOfPnts, RestrictLine, typs1, typs2);
873 }
7fd59977 874 }
788cbaf4 875
7fd59977 876 // Geom - Param
877 if(ts1 != ts2)
878 {
788cbaf4 879 GeomParamPerfom(theS1, theD1, theS2, theD2, ts1 == 0, typs1, typs2);
7fd59977 880 }
788cbaf4 881
7fd59977 882 // Param - Param
883 if(ts1 == ts2 && ts1 == 0)
884 {
788cbaf4 885 const Standard_Boolean RestrictLine = Standard_True;
886 IntSurf_ListOfPntOn2S ListOfPnts;
887 ListOfPnts.Clear();
888
889 ParamParamPerfom(theS1, theD1, theS2, theD2, TolArc, TolTang, ListOfPnts, RestrictLine, typs1, typs2);
7fd59977 890 }
891}
892
893//=======================================================================
894//function : Perform
895//purpose :
896//=======================================================================
788cbaf4 897void IntPatch_Intersection::Perform(const Handle(Adaptor3d_HSurface)& theS1,
898 const Handle(Adaptor3d_TopolTool)& theD1,
899 const Handle(Adaptor3d_HSurface)& theS2,
900 const Handle(Adaptor3d_TopolTool)& theD2,
7fd59977 901 const Standard_Real TolArc,
902 const Standard_Real TolTang,
903 IntSurf_ListOfPntOn2S& ListOfPnts,
788cbaf4 904 const Standard_Boolean RestrictLine,
905 const Standard_Boolean isGeomInt)
7fd59977 906{
907 myTolArc = TolArc;
908 myTolTang = TolTang;
788cbaf4 909 if(myFleche <= Precision::PConfusion())
910 myFleche = 0.01;
911 if(myUVMaxStep <= Precision::PConfusion())
912 myUVMaxStep = 0.01;
7fd59977 913
914 done = Standard_False;
915 spnt.Clear();
916 slin.Clear();
917 empt = Standard_True;
918 tgte = Standard_False;
919 oppo = Standard_False;
920
788cbaf4 921 GeomAbs_SurfaceType typs1 = theS1->GetType();
922 GeomAbs_SurfaceType typs2 = theS2->GetType();
7fd59977 923
924 Standard_Boolean TreatAsBiParametric = Standard_False;
788cbaf4 925 if(typs1 == GeomAbs_Cone)
926 {
927 const gp_Cone Con1 = theS1->Cone();
928 const Standard_Real a1 = Abs(Con1.SemiAngle());
929 if((a1 < 0.02) || (a1 > 1.55))
930 {
931 if(typs2==GeomAbs_Plane)
932 {
933 if(a1 < 0.02)
934 {
935 const gp_Pln Plan2 = theS2->Plane();
936 const gp_Dir axec = Con1.Axis().Direction();
937 const gp_Dir axep = Plan2.Axis().Direction();
938 const Standard_Real ps = Abs(axec.Dot(axep));
939 if(ps < 0.015)
940 {
941 TreatAsBiParametric = Standard_True;
942 }
943 }
7fd59977 944 }
788cbaf4 945 else
946 TreatAsBiParametric = Standard_True;
947 }
948 }
949
950 if(typs2 == GeomAbs_Cone)
951 {
952 const gp_Cone Con2 = theS2->Cone();
953 const Standard_Real a2 = Abs(Con2.SemiAngle());
954 if((a2 < 0.02) || (a2 > 1.55))
955 {
956 if(typs1 == GeomAbs_Plane)
957 {
958 if(a2 < 0.02)
959 {
960 const gp_Pln Plan1 = theS1->Plane();
961 const gp_Dir axec = Con2.Axis().Direction();
962 const gp_Dir axep = Plan1.Axis().Direction();
963 const Standard_Real ps = Abs(axec.Dot(axep));
964 if(ps<0.015)
965 {
966 TreatAsBiParametric = Standard_True;
967 }
968 }
7fd59977 969 }
788cbaf4 970 else
971 TreatAsBiParametric = Standard_True;
7fd59977 972 }
788cbaf4 973
974 //// modified by jgv, 15.12.02 for OCC565 ////
b92a64cc 975 if (typs1 == GeomAbs_Cone && TreatAsBiParametric)
788cbaf4 976 {
977 const gp_Cone Con1 = theS1->Cone();
978 const Standard_Real a1 = Abs(Con1.SemiAngle());
b92a64cc 979 //if collinear, treat as canonical
980 const gp_Ax1 A1 = Con1.Axis(), A2 = Con2.Axis();
981 const gp_Lin L1(A1);
982 if (A1.IsParallel(A2,Precision::Angular()) &&
983 (L1.Distance(A2.Location()) <= Precision::Confusion()))
788cbaf4 984 {
b92a64cc 985 TreatAsBiParametric = Standard_False;
7fd59977 986 }
788cbaf4 987 else if (a1 > 1.55 && a2 > 1.55) //quasi-planes: if same domain, treat as canonic
988 {
989 const gp_Ax1 A1 = Con1.Axis(), A2 = Con2.Axis();
990 if (A1.IsParallel(A2,Precision::Angular()))
991 {
992 const gp_Pnt Apex1 = Con1.Apex(), Apex2 = Con2.Apex();
993 const gp_Pln Plan1( Apex1, A1.Direction() );
994 if (Plan1.Distance( Apex2 ) <= Precision::Confusion())
995 {
996 TreatAsBiParametric = Standard_False;
997 }
998 }
7fd59977 999 }
788cbaf4 1000 }// if (typs1 == GeomAbs_Cone) {
1001 }// if(typs2 == GeomAbs_Cone) {
7fd59977 1002
788cbaf4 1003 if(theD1->DomainIsInfinite() || theD2->DomainIsInfinite()) {
bf0ba813 1004 TreatAsBiParametric= Standard_False;
1005 }
788cbaf4 1006
1007 if(TreatAsBiParametric)
1008 {
1009 // Using Prm-Prm Intersector
1010 typs1 = GeomAbs_BezierSurface;
1011 typs2 = GeomAbs_BezierSurface;
bf0ba813 1012 }
7fd59977 1013
1014 // Surface type definition
1015 Standard_Integer ts1 = 0;
1016 switch (typs1)
1017 {
1018 case GeomAbs_Plane:
1019 case GeomAbs_Cylinder:
1020 case GeomAbs_Sphere:
1021 case GeomAbs_Cone: ts1 = 1; break;
1022 default: break;
1023 }
788cbaf4 1024
7fd59977 1025 Standard_Integer ts2 = 0;
1026 switch (typs2)
1027 {
1028 case GeomAbs_Plane:
1029 case GeomAbs_Cylinder:
1030 case GeomAbs_Sphere:
1031 case GeomAbs_Cone: ts2 = 1; break;
1032 default: break;
1033 }
788cbaf4 1034
7fd59977 1035 // Possible intersection types: 1. ts1 == ts2 == 1 <Geom-Geom>
1036 // 2. ts1 != ts2 <Geom-Param>
1037 // 3. ts1 == ts2 == 0 <Param-Param>
1038
788cbaf4 1039 if(!isGeomInt)
7fd59977 1040 {
788cbaf4 1041 ParamParamPerfom(theS1, theD1, theS2, theD2, TolArc, TolTang, ListOfPnts, RestrictLine, typs1, typs2);
7fd59977 1042 }
788cbaf4 1043 else if(ts1 != ts2)
1044 {
1045 GeomParamPerfom(theS1, theD1, theS2, theD2, ts1 == 0, typs1, typs2);
1046 }
1047 else if (ts1 == 0)
1048 {
1049 ParamParamPerfom(theS1, theD1, theS2, theD2, TolArc, TolTang, ListOfPnts, RestrictLine, typs1, typs2);
1050 }
1051 else if(ts1 == 1)
1052 {
1053 GeomGeomPerfom(theS1, theD1, theS2, theD2, TolArc, TolTang, ListOfPnts, RestrictLine, typs1, typs2);
1054 }
1055}
1056
1057//=======================================================================
1058//function : ParamParamPerfom
1059//purpose :
1060//=======================================================================
1061void IntPatch_Intersection::ParamParamPerfom(const Handle(Adaptor3d_HSurface)& theS1,
1062 const Handle(Adaptor3d_TopolTool)& theD1,
1063 const Handle(Adaptor3d_HSurface)& theS2,
1064 const Handle(Adaptor3d_TopolTool)& theD2,
1065 const Standard_Real TolArc,
1066 const Standard_Real TolTang,
1067 IntSurf_ListOfPntOn2S& ListOfPnts,
1068 const Standard_Boolean RestrictLine,
1069 const GeomAbs_SurfaceType typs1,
1070 const GeomAbs_SurfaceType typs2)
1071{
1072 IntPatch_PrmPrmIntersection interpp;
1073 if(!theD1->DomainIsInfinite() && !theD2->DomainIsInfinite())
7fd59977 1074 {
788cbaf4 1075 Standard_Boolean ClearFlag = Standard_True;
1076 if(!ListOfPnts.IsEmpty())
1077 {
1078 interpp.Perform(theS1,theD1,theS2,theD2,TolArc,TolTang,myFleche,myUVMaxStep, ListOfPnts, RestrictLine);
1079 ClearFlag = Standard_False;
7fd59977 1080 }
788cbaf4 1081 interpp.Perform(theS1,theD1,theS2,theD2,TolArc,TolTang,myFleche,myUVMaxStep,ClearFlag); //double call!!!!!!!
7fd59977 1082 }
788cbaf4 1083 else if((theD1->DomainIsInfinite()) ^ (theD2->DomainIsInfinite()))
7fd59977 1084 {
788cbaf4 1085 gp_Pnt pMaxXYZ, pMinXYZ;
1086 if(theD1->DomainIsInfinite())
1087 {
1088 FUN_GetMinMaxXYZPnt( theS2, pMinXYZ, pMaxXYZ );
1089 const Standard_Real MU = Max(Abs(theS2->FirstUParameter()),Abs(theS2->LastUParameter()));
1090 const Standard_Real MV = Max(Abs(theS2->FirstVParameter()),Abs(theS2->LastVParameter()));
1091 const Standard_Real AP = Max(MU, MV);
1092 Handle(Adaptor3d_HSurface) SS;
1093 FUN_TrimInfSurf(pMinXYZ, pMaxXYZ, theS1, AP, SS);
1094 interpp.Perform(SS,theD1,theS2,theD2,TolArc,TolTang,myFleche,myUVMaxStep);
1095 }
1096 else
1097 {
1098 FUN_GetMinMaxXYZPnt( theS1, pMinXYZ, pMaxXYZ );
1099 const Standard_Real MU = Max(Abs(theS1->FirstUParameter()),Abs(theS1->LastUParameter()));
1100 const Standard_Real MV = Max(Abs(theS1->FirstVParameter()),Abs(theS1->LastVParameter()));
1101 const Standard_Real AP = Max(MU, MV);
1102 Handle(Adaptor3d_HSurface) SS;
1103 FUN_TrimInfSurf(pMinXYZ, pMaxXYZ, theS2, AP, SS);
1104 interpp.Perform(theS1, theD1, SS, theD2,TolArc,TolTang,myFleche,myUVMaxStep);
1105 }
1106 }//(theD1->DomainIsInfinite()) ^ (theD2->DomainIsInfinite())
1107 else
1108 {
1109 if(typs1 == GeomAbs_OtherSurface || typs2 == GeomAbs_OtherSurface)
1110 {
1111 done = Standard_False;
1112 return;
1113 }
1114
1115 Standard_Boolean IsPLInt = Standard_False;
1116 TColgp_SequenceOfPnt sop;
1117 gp_Vec v;
1118 FUN_PL_Intersection(theS1,typs1,theS2,typs2,IsPLInt,sop,v);
1119
1120 if(IsPLInt)
1121 {
1122 if(sop.Length() > 0)
1123 {
1124 for(Standard_Integer ip = 1; ip <= sop.Length(); ip++)
1125 {
1126 gp_Lin lin(sop.Value(ip),gp_Dir(v));
1127 Handle(IntPatch_GLine) gl = new IntPatch_GLine(lin,Standard_False);
1128 slin.Append(*(Handle_IntPatch_Line *)&gl);
1129 }
1130
1131 done = Standard_True;
7fd59977 1132 }
788cbaf4 1133 else
1134 done = Standard_False;
1135
1136 return;
1137 }// 'COLLINEAR LINES'
1138 else
1139 {
1140 Handle(Adaptor3d_HSurface) nS1 = theS1;
1141 Handle(Adaptor3d_HSurface) nS2 = theS2;
1142 FUN_TrimBothSurf(theS1,typs1,theS2,typs2,1.e+8,nS1,nS2);
1143 interpp.Perform(nS1,theD1,nS2,theD2,TolArc,TolTang,myFleche,myUVMaxStep);
1144 }// 'NON - COLLINEAR LINES'
1145 }// both domains are infinite
1146
1147 if (interpp.IsDone())
1148 {
1149 done = Standard_True;
1150 tgte = Standard_False;
1151 empt = interpp.IsEmpty();
1152
1153 for(Standard_Integer i = 1; i <= interpp.NbLines(); i++)
1154 {
1155 if(interpp.Line(i)->ArcType() != IntPatch_Walking)
1156 slin.Append(interpp.Line(i));
1157 }
1158
1159 for (Standard_Integer i = 1; i <= interpp.NbLines(); i++)
1160 {
1161 if(interpp.Line(i)->ArcType() == IntPatch_Walking)
1162 slin.Append(interpp.Line(i));
1163 }
1164 }
1165}
1166
1167//=======================================================================
1168////function : GeomGeomPerfom
1169//purpose :
1170//=======================================================================
1171void IntPatch_Intersection::GeomGeomPerfom(const Handle(Adaptor3d_HSurface)& theS1,
1172 const Handle(Adaptor3d_TopolTool)& theD1,
1173 const Handle(Adaptor3d_HSurface)& theS2,
1174 const Handle(Adaptor3d_TopolTool)& theD2,
1175 const Standard_Real TolArc,
1176 const Standard_Real TolTang,
1177 IntSurf_ListOfPntOn2S& ListOfPnts,
1178 const Standard_Boolean RestrictLine,
1179 const GeomAbs_SurfaceType typs1,
1180 const GeomAbs_SurfaceType typs2)
1181{
1182 IntPatch_ImpImpIntersection interii(theS1,theD1,theS2,theD2,myTolArc,myTolTang);
1183 const Standard_Boolean anIS = interii.IsDone();
1184 if (anIS)
1185 {
1186 done = anIS;
1187 empt = interii.IsEmpty();
1188 if (!empt)
1189 {
1190 tgte = interii.TangentFaces();
1191 if (tgte)
1192 oppo = interii.OppositeFaces();
1193
1194 for (Standard_Integer i = 1; i <= interii.NbLines(); i++)
1195 {
1196 const Handle_IntPatch_Line& line = interii.Line(i);
1197 if (line->ArcType() == IntPatch_Analytic)
1198 {
1199 const GeomAbs_SurfaceType typs1 = theS1->GetType();
1200 const GeomAbs_SurfaceType typs2 = theS2->GetType();
1201 IntSurf_Quadric Quad1,Quad2;
1202
1203 switch(typs1)
1204 {
1205 case GeomAbs_Plane:
1206 Quad1.SetValue(theS1->Plane());
1207 break;
1208
1209 case GeomAbs_Cylinder:
1210 Quad1.SetValue(theS1->Cylinder());
1211 break;
1212
1213 case GeomAbs_Sphere:
1214 Quad1.SetValue(theS1->Sphere());
1215 break;
1216
1217 case GeomAbs_Cone:
1218 Quad1.SetValue(theS1->Cone());
1219 break;
1220
1221 default:
1222 break;
1223 }
1224
1225 switch(typs2)
1226 {
1227 case GeomAbs_Plane:
1228 Quad2.SetValue(theS2->Plane());
1229 break;
1230 case GeomAbs_Cylinder:
1231 Quad2.SetValue(theS2->Cylinder());
1232 break;
1233
1234 case GeomAbs_Sphere:
1235 Quad2.SetValue(theS2->Sphere());
1236 break;
1237
1238 case GeomAbs_Cone:
1239 Quad2.SetValue(theS2->Cone());
1240 break;
1241
1242 default:
1243 break;
1244 }
1245
1246 IntPatch_ALineToWLine AToW(Quad1,Quad2,0.01,0.05,aNbPointsInALine);
1247 Handle(IntPatch_Line) wlin=AToW.MakeWLine((*((Handle_IntPatch_ALine *)(&line))));
1248 slin.Append(wlin);
1249 }
1250 else
1251 slin.Append(interii.Line(i));
1252 }
1253
1254 for (Standard_Integer i = 1; i <= interii.NbPnts(); i++)
1255 {
1256 spnt.Append(interii.Point(i));
1257 }
1258 }
1259 }
1260 else
1261 ParamParamPerfom(theS1, theD1, theS2, theD2, TolArc, TolTang, ListOfPnts, RestrictLine, typs1, typs2);
1262}
1263
1264//=======================================================================
1265////function : GeomParamPerfom
1266//purpose :
1267//=======================================================================
1268void IntPatch_Intersection::GeomParamPerfom(const Handle(Adaptor3d_HSurface)& theS1,
1269 const Handle(Adaptor3d_TopolTool)& theD1,
1270 const Handle(Adaptor3d_HSurface)& theS2,
1271 const Handle(Adaptor3d_TopolTool)& theD2,
1272 const Standard_Boolean isNotAnalitical,
1273 const GeomAbs_SurfaceType typs1,
1274 const GeomAbs_SurfaceType typs2)
1275{
1276 IntPatch_ImpPrmIntersection interip;
1277 if (myIsStartPnt)
1278 {
1279 if (isNotAnalitical/*ts1 == 0*/)
1280 interip.SetStartPoint(myU1Start,myV1Start);
1281 else
1282 interip.SetStartPoint(myU2Start,myV2Start);
1283 }
1284
1285 if(theD1->DomainIsInfinite() && theD2->DomainIsInfinite())
1286 {
1287 Standard_Boolean IsPLInt = Standard_False;
1288 TColgp_SequenceOfPnt sop;
1289 gp_Vec v;
1290 FUN_PL_Intersection(theS1,typs1,theS2,typs2,IsPLInt,sop,v);
1291
1292 if(IsPLInt)
1293 {
1294 if(sop.Length() > 0)
1295 {
1296 for(Standard_Integer ip = 1; ip <= sop.Length(); ip++)
1297 {
1298 gp_Lin lin(sop.Value(ip),gp_Dir(v));
1299 Handle(IntPatch_GLine) gl = new IntPatch_GLine(lin,Standard_False);
1300 slin.Append(*(Handle_IntPatch_Line *)&gl);
1301 }
1302
1303 done = Standard_True;
1304 }
1305 else
1306 done = Standard_False;
1307
1308 return;
1309 }
1310 else
1311 {
1312 Handle(Adaptor3d_HSurface) nS1 = theS1;
1313 Handle(Adaptor3d_HSurface) nS2 = theS2;
1314 FUN_TrimBothSurf(theS1,typs1,theS2,typs2,1.e+5,nS1,nS2);
1315 interip.Perform(nS1,theD1,nS2,theD2,myTolArc,myTolTang,myFleche,myUVMaxStep);
1316 }
1317 }
1318 else
1319 interip.Perform(theS1,theD1,theS2,theD2,myTolArc,myTolTang,myFleche,myUVMaxStep);
1320
1321 if (interip.IsDone())
1322 {
1323 done = Standard_True;
1324 empt = interip.IsEmpty();
1325
1326 if (!empt)
1327 {
1328 for(Standard_Integer i = 1; i <= interip.NbLines(); i++)
1329 {
1330 if(interip.Line(i)->ArcType() != IntPatch_Walking)
1331 slin.Append(interip.Line(i));
1332 }
1333
1334 for(Standard_Integer i = 1; i <= interip.NbLines(); i++)
1335 {
1336 if(interip.Line(i)->ArcType() == IntPatch_Walking)
1337 slin.Append(interip.Line(i));
1338 }
1339
1340 for (Standard_Integer i = 1; i <= interip.NbPnts(); i++)
1341 spnt.Append(interip.Point(i));
1342 }
7fd59977 1343 }
1344}
1345
788cbaf4 1346
7fd59977 1347void IntPatch_Intersection::Perform(const Handle(Adaptor3d_HSurface)& S1,
1348 const Handle(Adaptor3d_TopolTool)& D1,
1349 const Handle(Adaptor3d_HSurface)& S2,
1350 const Handle(Adaptor3d_TopolTool)& D2,
1351 const Standard_Real U1,
1352 const Standard_Real V1,
1353 const Standard_Real U2,
1354 const Standard_Real V2,
1355 const Standard_Real TolArc,
1356 const Standard_Real TolTang)
1357{
1358 myTolArc = TolArc;
1359 myTolTang = TolTang;
1360 if(myFleche == 0.0) {
1361#if DEBUG
1362 //cout<<" -- IntPatch_Intersection::myFleche fixe par defaut a 0.01 --"<<endl;
1363 //cout<<" -- Utiliser la Methode SetTolerances( ... ) "<<endl;
1364#endif
1365 myFleche = 0.01;
1366 }
1367 if(myUVMaxStep==0.0) {
1368#if DEBUG
1369 //cout<<" -- IntPatch_Intersection::myUVMaxStep fixe par defaut a 0.01 --"<<endl;
1370 //cout<<" -- Utiliser la Methode SetTolerances( ... ) "<<endl;
1371#endif
1372 myUVMaxStep = 0.01;
1373 }
1374
1375 done = Standard_False;
1376 spnt.Clear();
1377 slin.Clear();
1378
1379 empt = Standard_True;
1380 tgte = Standard_False;
1381 oppo = Standard_False;
1382
1383 const GeomAbs_SurfaceType typs1 = S1->GetType();
1384 const GeomAbs_SurfaceType typs2 = S2->GetType();
1385
1386 if( typs1==GeomAbs_Plane
1387 || typs1==GeomAbs_Cylinder
1388 || typs1==GeomAbs_Sphere
1389 || typs1==GeomAbs_Cone
1390 || typs2==GeomAbs_Plane
1391 || typs2==GeomAbs_Cylinder
1392 || typs2==GeomAbs_Sphere
1393 || typs2==GeomAbs_Cone)
1394 {
1395 myIsStartPnt = Standard_True;
1396 myU1Start = U1; myV1Start = V1; myU2Start = U2; myV2Start = V2;
1397 Perform(S1,D1,S2,D2,TolArc,TolTang);
1398 myIsStartPnt = Standard_False;
1399 }
1400 else
1401 {
1402 IntPatch_PrmPrmIntersection interpp;
1403 interpp.Perform(S1,D1,S2,D2,U1,V1,U2,V2,TolArc,TolTang,myFleche,myUVMaxStep);
1404 if (interpp.IsDone())
1405 {
1406 done = Standard_True;
1407 tgte = Standard_False;
1408 empt = interpp.IsEmpty();
1409 const Standard_Integer nblm = interpp.NbLines();
1410 Standard_Integer i = 1;
1411 for (; i<=nblm; i++) slin.Append(interpp.Line(i));
1412 }
1413 }
1414}
1415//======================================================================
1416#include <IntPatch_IType.hxx>
1417#include <IntPatch_LineConstructor.hxx>
1418#include <Handle_Adaptor2d_HCurve2d.hxx>
1419#define MAXR 200
1420
1421
1422//void IntPatch_Intersection__MAJ_R(Handle_Adaptor2d_HCurve2d *R1,
1423// Handle_Adaptor2d_HCurve2d *R2,
1424// int *NR1,
1425// int *NR2,
1426// Standard_Integer nbR1,
1427// Standard_Integer nbR2,
1428// const IntPatch_Point& VTX)
1429void IntPatch_Intersection__MAJ_R(Handle_Adaptor2d_HCurve2d *,
1430 Handle_Adaptor2d_HCurve2d *,
1431 int *,
1432 int *,
1433 Standard_Integer ,
1434 Standard_Integer ,
1435 const IntPatch_Point& )
1436{
1437 /*
1438 if(VTX.IsOnDomS1()) {
1439
1440 //-- long unsigned ptr= *((long unsigned *)(((Handle_Standard_Transient *)(&(VTX.ArcOnS1())))));
1441 for(Standard_Integer i=0; i<nbR1;i++) {
1442 if(VTX.ArcOnS1()==R1[i]) {
1443 NR1[i]++;
1444 printf("\n ******************************");
1445 return;
1446 }
1447 }
1448 printf("\n R Pas trouvee (IntPatch)\n");
1449
1450 }
1451 */
1452}
1453
1454
1455//void IntPatch_Intersection::Dump(const Standard_Integer Mode,
1456void IntPatch_Intersection::Dump(const Standard_Integer ,
1457 const Handle(Adaptor3d_HSurface)& S1,
1458 const Handle(Adaptor3d_TopolTool)& D1,
1459 const Handle(Adaptor3d_HSurface)& S2,
1460 const Handle(Adaptor3d_TopolTool)& D2) const
1461{
1462
1463 //-- ----------------------------------------------------------------------
1464 //-- construction de la liste des restrictions & vertex
1465 //--
1466 int NR1[MAXR],NR2[MAXR];
1467 Handle_Adaptor2d_HCurve2d R1[MAXR],R2[MAXR];
1468 Standard_Integer nbR1=0,nbR2=0;
1469 for(D1->Init();D1->More() && nbR1<MAXR; D1->Next()) {
1470 R1[nbR1]=D1->Value();
1471 NR1[nbR1]=0;
1472 nbR1++;
1473 }
1474 for(D2->Init();D2->More() && nbR2<MAXR; D2->Next()) {
1475 R2[nbR2]=D2->Value();
1476 NR2[nbR2]=0;
1477 nbR2++;
1478 }
1479
1480 printf("\nDUMP_INT: ----empt:%2d tgte:%2d oppo:%2d ---------------------------------",empt,tgte,empt);
1481 Standard_Integer i,j,nbr1,nbr2,nbgl,nbgc,nbge,nbgp,nbgh,nbl,nbr,nbg,nbw,nba;
1482 nbl=nbr=nbg=nbw=nba=nbgl=nbge=nbr1=nbr2=nbgc=nbgp=nbgh=0;
1483 nbl=NbLines();
1484 for(i=1;i<=nbl;i++) {
1485 const Handle(IntPatch_Line)& line=Line(i);
1486 const IntPatch_IType IType=line->ArcType();
1487 if(IType == IntPatch_Walking) nbw++;
1488 else if(IType == IntPatch_Restriction) {
1489 nbr++;
1490 Handle(IntPatch_RLine)& rlin =
1491 *((Handle(IntPatch_RLine) *)&line);
1492 if(rlin->IsArcOnS1()) nbr1++;
1493 if(rlin->IsArcOnS2()) nbr2++;
1494 }
1495 else if(IType == IntPatch_Analytic) nba++;
1496 else { nbg++;
1497 if(IType == IntPatch_Lin) nbgl++;
1498 else if(IType == IntPatch_Circle) nbgc++;
1499 else if(IType == IntPatch_Parabola) nbgp++;
1500 else if(IType == IntPatch_Hyperbola) nbgh++;
1501 else if(IType == IntPatch_Ellipse) nbge++;
1502 }
1503 }
1504
1505
1506 printf("\nDUMP_INT:Lines:%2d Wlin:%2d Restr:%2d(On1:%2d On2:%2d) Ana:%2d Geom:%2d(L:%2d C:%2d E:%2d H:%2d P:%2d)",
1507 nbl,nbw,nbr,nbr1,nbr2,nba,nbg,nbgl,nbgc,nbge,nbgh,nbgp);
1508
1509 IntPatch_LineConstructor LineConstructor(2);
1510
1511 Standard_Integer nbllc=0;
1512 nbw=nbr=nbg=nba=0;
1513 Standard_Integer nbva,nbvw,nbvr,nbvg;
1514 nbva=nbvr=nbvw=nbvg=0;
1515 for (j=1; j<=nbl; j++) {
1516 Standard_Integer v,nbvtx;
1517 const Handle(IntPatch_Line)& intersLinej = Line(j);
1518 Standard_Integer NbLines;
1519 LineConstructor.Perform(SequenceOfLine(),intersLinej,S1,D1,S2,D2,1e-7);
1520 NbLines = LineConstructor.NbLines();
1521
1522 for(Standard_Integer k=1;k<=NbLines;k++) {
1523 nbllc++;
1524 const Handle(IntPatch_Line)& LineK = LineConstructor.Line(k);
1525 if (LineK->ArcType() == IntPatch_Analytic) {
1526 Handle(IntPatch_ALine)& alin =
1527 *((Handle(IntPatch_ALine) *)&LineK);
1528 nbvtx=alin->NbVertex();
1529 nbva+=nbvtx; nba++;
1530 for(v=1;v<=nbvtx;v++) {
1531 IntPatch_Intersection__MAJ_R(R1,R2,NR1,NR2,nbR1,nbR2,alin->Vertex(v));
1532 }
1533 }
1534 else if (LineK->ArcType() == IntPatch_Restriction) {
1535 Handle(IntPatch_RLine)& rlin =
1536 *((Handle(IntPatch_RLine) *)&LineK);
1537 nbvtx=rlin->NbVertex();
1538 nbvr+=nbvtx; nbr++;
1539 for(v=1;v<=nbvtx;v++) {
1540 IntPatch_Intersection__MAJ_R(R1,R2,NR1,NR2,nbR1,nbR2,rlin->Vertex(v));
1541 }
1542 }
1543 else if (LineK->ArcType() == IntPatch_Walking) {
1544 Handle(IntPatch_WLine)& wlin =
1545 *((Handle(IntPatch_WLine) *)&LineK);
1546 nbvtx=wlin->NbVertex();
1547 nbvw+=nbvtx; nbw++;
1548 for(v=1;v<=nbvtx;v++) {
1549 IntPatch_Intersection__MAJ_R(R1,R2,NR1,NR2,nbR1,nbR2,wlin->Vertex(v));
1550 }
1551 }
1552 else {
1553 Handle(IntPatch_GLine)& glin =
1554 *((Handle(IntPatch_GLine) *)&LineK);
1555 nbvtx=glin->NbVertex();
1556 nbvg+=nbvtx; nbg++;
1557 for(v=1;v<=nbvtx;v++) {
1558 IntPatch_Intersection__MAJ_R(R1,R2,NR1,NR2,nbR1,nbR2,glin->Vertex(v));
1559 }
1560 }
1561 }
1562 }
1563 printf("\nDUMP_LC :Lines:%2d WLin:%2d Restr:%2d Ana:%2d Geom:%2d",
1564 nbllc,nbw,nbr,nba,nbg);
1565 printf("\nDUMP_LC :vtx :%2d r:%2d :%2d :%2d",
1566 nbvw,nbvr,nbva,nbvg);
1567
1568
1569
1570 printf("\n");
1571}
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