1 // Created on: 1998-03-16
2 // Created by: Pierre BARRAS
3 // Copyright (c) 1998-1999 Matra Datavision
4 // Copyright (c) 1999-2014 OPEN CASCADE SAS
6 // This file is part of Open CASCADE Technology software library.
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
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.
14 // Alternatively, this file may be used under the terms of Open CASCADE
15 // commercial license or contractual agreement.
17 // gka 30.04.99 S4137: extended for all types of surfaces
19 #include <Geom_BezierSurface.hxx>
20 #include <Geom_BSplineSurface.hxx>
21 #include <Geom_OffsetSurface.hxx>
22 #include <Geom_RectangularTrimmedSurface.hxx>
23 #include <Geom_Surface.hxx>
24 #include <Geom_SurfaceOfLinearExtrusion.hxx>
25 #include <Geom_SurfaceOfRevolution.hxx>
27 #include <Precision.hxx>
28 #include <ShapeExtend.hxx>
29 #include <ShapeExtend_CompositeSurface.hxx>
30 #include <ShapeUpgrade.hxx>
31 #include <ShapeUpgrade_SplitCurve3d.hxx>
32 #include <ShapeUpgrade_SplitSurface.hxx>
33 #include <Standard_ErrorHandler.hxx>
34 #include <Standard_Failure.hxx>
35 #include <Standard_Type.hxx>
36 #include <TColGeom_HArray1OfCurve.hxx>
37 #include <TColGeom_HArray2OfSurface.hxx>
38 #include <TColStd_Array1OfReal.hxx>
39 #include <TColStd_HSequenceOfReal.hxx>
41 IMPLEMENT_STANDARD_RTTIEXT(ShapeUpgrade_SplitSurface,MMgt_TShared)
43 //=======================================================================
44 //function : ShapeUpgrade_SplitSurface
46 //=======================================================================
47 ShapeUpgrade_SplitSurface::ShapeUpgrade_SplitSurface() : myStatus(0)
51 //=======================================================================
54 //=======================================================================
56 void ShapeUpgrade_SplitSurface::Init(const Handle(Geom_Surface)& S)
58 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
60 myUSplitValues = new TColStd_HSequenceOfReal();
61 myVSplitValues = new TColStd_HSequenceOfReal();
63 myResSurfaces = new ShapeExtend_CompositeSurface();
66 Standard_Real U1,U2,V1,V2;
67 mySurface->Bounds(U1,U2,V1,V2);
69 myUSplitValues->Append(U1);
70 myUSplitValues->Append(U2);
72 myVSplitValues->Append(V1);
73 myVSplitValues->Append(V2);
76 //=======================================================================
79 //=======================================================================
81 void ShapeUpgrade_SplitSurface::Init(const Handle(Geom_Surface)& S, const Standard_Real UFirst,const Standard_Real ULast,
82 const Standard_Real VFirst, const Standard_Real VLast)
84 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
87 myResSurfaces = new ShapeExtend_CompositeSurface();
88 myUSplitValues = new TColStd_HSequenceOfReal();
89 myVSplitValues = new TColStd_HSequenceOfReal();
94 Standard_Real U1,U2,V1,V2;
95 mySurface->Bounds(U1,U2,V1,V2);
96 Standard_Real precision = Precision::PConfusion();
97 if ( mySurface->IsUPeriodic() &&
98 ULast - UFirst <= U2 - U1 + precision ) { U1 = UFirst; U2 = U1 + mySurface->UPeriod(); }
99 if ( mySurface->IsVPeriodic() &&
100 VLast - VFirst <= V2 - V1 + precision ) { V1 = VFirst; V2 = V1 + mySurface->VPeriod(); }
101 Standard_Real UF,UL,VF,VL;
102 if( UFirst > U2-precision ||
103 ULast < U1-precision ) {
110 if( VFirst > V2-precision ||
111 VLast < V1-precision ) {
119 if(UL-UF < precision) {
120 Standard_Real p2 = precision/2.;
124 if(VL-VF < precision) {
125 Standard_Real p2 = precision/2.;
130 myUSplitValues->Append(UF);
131 myUSplitValues->Append(UL);
132 myVSplitValues->Append(VF);
133 myVSplitValues->Append(VL);
136 //=======================================================================
137 //function : SetSplitValues
139 //=======================================================================
141 void ShapeUpgrade_SplitSurface::SetUSplitValues(const Handle(TColStd_HSequenceOfReal)& UValues)
143 if(UValues.IsNull()) return;
144 Standard_Real precision = Precision::PConfusion();
145 Standard_Real UFirst = myUSplitValues->Value(1),
146 ULast = myUSplitValues->Value(myUSplitValues->Length());
147 Standard_Integer i =1;
148 Standard_Integer len = UValues->Length();
150 for(Standard_Integer ku =2; ku <= myUSplitValues->Length();ku++) {
151 ULast = myUSplitValues->Value(ku);
152 for(; i <= len; i++) {
153 if( (UFirst + precision) >= UValues->Value(i)) continue;
154 if((ULast - precision) <= UValues->Value(i)) break;
155 myUSplitValues->InsertBefore(ku++,UValues->Value(i));
161 //=======================================================================
162 //function : SetSplitVValues
164 //=======================================================================
166 void ShapeUpgrade_SplitSurface::SetVSplitValues(const Handle(TColStd_HSequenceOfReal)& VValues)
168 if(VValues.IsNull()) return;
169 Standard_Real precision = Precision::PConfusion();
170 Standard_Real VFirst = myVSplitValues->Value(1),
171 VLast = myVSplitValues->Value(myVSplitValues->Length());
172 Standard_Integer i =1;
173 Standard_Integer len = VValues->Length();
174 for(Standard_Integer kv =2; kv <= myVSplitValues->Length();kv++) {
175 VLast = myVSplitValues->Value(kv);
176 for(; i <= len; i++) {
177 if( (VFirst + precision) >= VValues->Value(i)) continue;
178 if((VLast - precision) <= VValues->Value(i)) break;
179 myVSplitValues->InsertBefore(kv++,VValues->Value(i));
185 //=======================================================================
188 //=======================================================================
190 void ShapeUpgrade_SplitSurface::Build(const Standard_Boolean Segment)
193 Standard_Real UFirst = myUSplitValues->Value(1);
194 Standard_Real ULast = myUSplitValues->Value(myUSplitValues->Length());
195 Standard_Real VFirst = myVSplitValues->Value(1);
196 Standard_Real VLast = myVSplitValues->Value(myVSplitValues->Length());
198 if(myUSplitValues->Length() > 2 || myVSplitValues->Length() > 2)
199 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_DONE1);
201 Standard_Real U1,U2,V1,V2;
202 mySurface->Bounds(U1, U2, V1, V2);
203 if (mySurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfRevolution))) {
204 Handle(Geom_SurfaceOfRevolution) Surface = Handle(Geom_SurfaceOfRevolution)::DownCast(mySurface);
205 Handle(Geom_Curve) BasCurve = Surface->BasisCurve();
206 ShapeUpgrade_SplitCurve3d spc;
207 spc.Init(BasCurve,VFirst,VLast);
208 spc.SetSplitValues(myVSplitValues);
210 Handle(TColGeom_HArray2OfSurface) Surfaces;
211 myNbResultingCol = spc.GetCurves()->Length();
212 if(myUSplitValues->Length()> 2) {
213 myNbResultingRow = myUSplitValues->Length() -1;
214 Surfaces = new TColGeom_HArray2OfSurface(1, myNbResultingRow,1,myNbResultingCol);
215 for(Standard_Integer nc =1; nc <= myNbResultingCol; nc++) {
216 Handle(Geom_SurfaceOfRevolution) NewSurfaceRev =
217 new Geom_SurfaceOfRevolution(spc.GetCurves()->Value(nc),Surface->Axis());
218 Standard_Real U1p,U2p,V1p,V2p;
219 NewSurfaceRev->Bounds(U1p,U2p,V1p,V2p);
220 for(Standard_Integer nc1 =1; nc1 <= myNbResultingRow; nc1++) {
221 Handle(Geom_RectangularTrimmedSurface) NewSurf =
222 new Geom_RectangularTrimmedSurface ( NewSurfaceRev, myUSplitValues->Value(nc1),
223 myUSplitValues->Value(nc1+1), V1p, V2p );
224 Surfaces->SetValue(nc1,nc,NewSurf);
229 Surfaces = new TColGeom_HArray2OfSurface(1,1,1,myNbResultingCol);
231 for(Standard_Integer nc =1; nc <= spc.GetCurves()->Length(); nc++) {
232 Handle(Geom_SurfaceOfRevolution) NewSurfaceRev =
233 new Geom_SurfaceOfRevolution ( spc.GetCurves()->Value(nc), Surface->Axis() );
234 NewSurfaceRev->Bounds(U1, U2, V1, V2);
235 if( UFirst == U1 && ULast == U2)
236 Surfaces ->SetValue(1,nc,NewSurfaceRev);
238 Handle(Geom_RectangularTrimmedSurface) NewSurf = new Geom_RectangularTrimmedSurface
239 (NewSurfaceRev,UFirst,ULast,V1,V2); //pdn correction for main seq
240 Surfaces ->SetValue(1,nc,NewSurf);
244 myResSurfaces->Init(Surfaces);
245 myResSurfaces->SetUFirstValue ( myUSplitValues->Sequence().First() );
246 myResSurfaces->SetVFirstValue ( myVSplitValues->Sequence().First() );
247 if ( spc.Status ( ShapeExtend_DONE1 ) )
248 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
249 if ( spc.Status ( ShapeExtend_DONE2 ) )
250 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
251 if ( spc.Status ( ShapeExtend_DONE3 ) )
252 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
256 if (mySurface->IsKind(STANDARD_TYPE(Geom_SurfaceOfLinearExtrusion))) {
257 Handle(Geom_SurfaceOfLinearExtrusion) Surface = Handle(Geom_SurfaceOfLinearExtrusion)::DownCast(mySurface);
258 Handle(Geom_Curve) BasCurve = Surface->BasisCurve();
259 ShapeUpgrade_SplitCurve3d spc;
260 spc.Init(BasCurve,UFirst,ULast);
261 spc.SetSplitValues(myUSplitValues);
263 myNbResultingRow = spc.GetCurves()->Length();
264 Handle(TColGeom_HArray2OfSurface) Surfaces;
265 if(myVSplitValues->Length() > 2) {
266 myNbResultingCol = myVSplitValues->Length() - 1;
267 Surfaces = new TColGeom_HArray2OfSurface(1,myNbResultingRow,1,myNbResultingCol);
268 for(Standard_Integer nc1 =1; nc1 <= myNbResultingRow; nc1++) {
269 Handle(Geom_SurfaceOfLinearExtrusion) NewSurfaceEx = new Geom_SurfaceOfLinearExtrusion(spc.GetCurves()->Value(nc1),
270 Surface->Direction());
271 Standard_Real U1p,U2p,V1p,V2p;
272 NewSurfaceEx->Bounds(U1p,U2p,V1p,V2p);
273 for(Standard_Integer nc2 =1; nc2 <= myNbResultingCol; nc2++) {
274 Handle(Geom_RectangularTrimmedSurface) NewSurf = new Geom_RectangularTrimmedSurface
275 (NewSurfaceEx,U1p,U2p,myVSplitValues->Value(nc2),myVSplitValues->Value(nc2+1));
276 Surfaces ->SetValue(nc1,nc2,NewSurf);
281 Surfaces = new TColGeom_HArray2OfSurface(1,myNbResultingRow,1,1);
283 for(Standard_Integer nc1 =1; nc1 <= myNbResultingRow; nc1++) {
284 Handle(Geom_SurfaceOfLinearExtrusion) NewSurfaceEx = new Geom_SurfaceOfLinearExtrusion(spc.GetCurves()->Value(nc1),Surface->Direction());
285 NewSurfaceEx->Bounds(U1,U2,V1,V2);
286 if(VFirst == V1 && VLast == V2)
287 Surfaces -> SetValue(nc1,1,NewSurfaceEx);
289 Handle(Geom_RectangularTrimmedSurface) NewSurf = new Geom_RectangularTrimmedSurface
290 (NewSurfaceEx,Max(U1,UFirst),Min(ULast,U2),Max(VFirst,V1),Min(VLast,V2));
291 Surfaces ->SetValue(nc1,1,NewSurf);
295 myResSurfaces->Init(Surfaces);
296 myResSurfaces->SetUFirstValue ( myUSplitValues->Sequence().First() );
297 myResSurfaces->SetVFirstValue ( myVSplitValues->Sequence().First() );
298 if ( spc.Status ( ShapeExtend_DONE1 ) )
299 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE1 );
300 if ( spc.Status ( ShapeExtend_DONE2 ) )
301 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE2 );
302 if ( spc.Status ( ShapeExtend_DONE3 ) )
303 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
307 if (mySurface->IsKind(STANDARD_TYPE(Geom_RectangularTrimmedSurface))) {
308 Handle(Geom_RectangularTrimmedSurface) tmp = Handle(Geom_RectangularTrimmedSurface)::DownCast (mySurface);
309 Handle(Geom_Surface) theSurf = tmp->BasisSurface();
310 ShapeUpgrade_SplitSurface sps;
311 sps.Init(theSurf,UFirst,ULast,VFirst,VLast);
312 sps.SetUSplitValues(myUSplitValues);
313 sps.SetVSplitValues(myVSplitValues);
314 sps.myStatus = myStatus;
316 myStatus |= sps.myStatus;
317 myResSurfaces = sps.myResSurfaces;
320 else if (mySurface->IsKind(STANDARD_TYPE(Geom_OffsetSurface))) {
321 Handle(Geom_OffsetSurface) tmp = Handle(Geom_OffsetSurface)::DownCast (mySurface);
322 Handle(Geom_Surface) theSurf = tmp->BasisSurface();
323 ShapeUpgrade_SplitSurface sps;
324 sps.Init(theSurf,UFirst,ULast,VFirst,VLast);
325 sps.SetUSplitValues(myUSplitValues);
326 sps.SetVSplitValues(myVSplitValues);
327 sps.myStatus = myStatus;
329 Handle(TColGeom_HArray2OfSurface) Patches = new TColGeom_HArray2OfSurface
330 (1,sps.ResSurfaces()->NbUPatches(),1,sps.ResSurfaces()->NbVPatches());
331 for(Standard_Integer i1 = 1; i1 <= sps.ResSurfaces()->NbUPatches(); i1++) {
332 for(Standard_Integer j1 = 1 ; j1 <= sps.ResSurfaces()->NbVPatches(); j1++) {
333 Handle(Geom_OffsetSurface) NewOffSur = new Geom_OffsetSurface(sps.ResSurfaces()->Patch(i1,j1),tmp->Offset());
334 Patches->SetValue(i1,j1,NewOffSur);
337 myResSurfaces->Init(Patches);
338 myResSurfaces->SetUFirstValue ( myUSplitValues->Sequence().First() );
339 myResSurfaces->SetVFirstValue ( myVSplitValues->Sequence().First() );
340 myStatus |= sps.myStatus;
344 // splitting the surfaces:
345 myNbResultingRow = myUSplitValues->Length() -1;
346 myNbResultingCol = myVSplitValues->Length() -1;
347 Handle(TColGeom_HArray2OfSurface) Surfaces =new TColGeom_HArray2OfSurface(1,myNbResultingRow,1,myNbResultingCol);
348 Standard_Boolean isBSpline = mySurface->IsKind(STANDARD_TYPE(Geom_BSplineSurface));
349 Standard_Boolean isBezier = mySurface->IsKind(STANDARD_TYPE(Geom_BezierSurface));
351 // Standard_Real U1,U2,V1,V2;
357 if(myNbResultingRow == 1 && myNbResultingCol == 1) {
358 mySurface->Bounds(U1, U2, V1, V2);
359 Standard_Boolean filled = Standard_True;
360 if ( Abs ( U1 - UFirst ) < Precision::PConfusion() &&
361 Abs ( U2 - ULast ) < Precision::PConfusion() &&
362 Abs ( V1 - VFirst ) < Precision::PConfusion() &&
363 Abs ( V2 - VLast ) < Precision::PConfusion() )
364 Surfaces->SetValue(1,1,mySurface);
365 else if ( ! Segment || ! mySurface->IsKind (STANDARD_TYPE (Geom_BSplineSurface) ) ||
366 ! Status ( ShapeExtend_DONE2 ) ) {
367 //pdn copying of surface
368 Handle(Geom_Surface) tmp = Handle(Geom_Surface)::DownCast(mySurface->Copy());
369 Handle(Geom_RectangularTrimmedSurface) Surf=
370 new Geom_RectangularTrimmedSurface(tmp,UFirst,ULast,VFirst,VLast);
371 Surfaces->SetValue(1,1,Surf);
373 else filled = Standard_False;
375 myResSurfaces->Init(Surfaces);
376 myResSurfaces->SetUFirstValue ( myUSplitValues->Sequence().First() );
377 myResSurfaces->SetVFirstValue ( myVSplitValues->Sequence().First() );
381 if (mySurface->IsKind (STANDARD_TYPE (Geom_BSplineSurface))) {
382 Handle(Geom_BSplineSurface) BsSurface = Handle(Geom_BSplineSurface)::DownCast(mySurface->Copy());
383 Standard_Integer FirstInd =BsSurface->FirstUKnotIndex(),
384 LastInd = BsSurface->LastUKnotIndex();
385 Standard_Integer j = FirstInd;
386 for(Standard_Integer ii =1 ; ii <= myUSplitValues->Length(); ii++) {
387 Standard_Real spval = myUSplitValues->Value(ii);
388 for(; j <=LastInd;j++) {
389 if( spval > BsSurface->UKnot(j) + Precision::PConfusion()) continue;
390 if( spval < BsSurface->UKnot(j) - Precision::PConfusion()) break;
391 myUSplitValues->ChangeValue(ii) = BsSurface->UKnot(j);
393 if(j == LastInd) break;
395 FirstInd =BsSurface->FirstVKnotIndex(),
396 LastInd = BsSurface->LastVKnotIndex();
398 for(Standard_Integer ii1 =1 ; ii1 <= myVSplitValues->Length(); ii1++) {
399 Standard_Real spval = myVSplitValues->Value(ii1);
400 for(; j <=LastInd;j++) {
401 if( spval > BsSurface->VKnot(j) + Precision::PConfusion()) continue;
402 if( spval < BsSurface->VKnot(j) - Precision::PConfusion()) break;
403 myVSplitValues->ChangeValue(ii1) =BsSurface->VKnot(j);
405 if(j == LastInd) break;
408 U1 = myUSplitValues->Value(1);
409 V1 = myVSplitValues->Value(1);
410 for(Standard_Integer irow = 2; irow <= myUSplitValues->Length(); irow++) {
411 U2 = myUSplitValues->Value(irow);
412 for(Standard_Integer icol = 2; icol <= myVSplitValues->Length(); icol++) {
413 V2 = myVSplitValues->Value(icol);
414 // if (ShapeUpgrade::Debug()) {
415 // cout<<".. bounds ="<<U1 <<","<<U2 <<","<<V1 <<","<<V2 <<endl;
416 // cout<<".. -> pos ="<<irow <<","<<icol<<endl;
418 // creates a copy of theSurf before to segment:
419 Handle(Geom_Surface) theNew = Handle(Geom_Surface)::DownCast ( mySurface->Copy() );
420 if ( isBSpline || isBezier ) {
424 Handle(Geom_BSplineSurface)::DownCast(theNew)->Segment(U1,U2,V1,V2);
425 else if ( isBezier ) {
426 //pdn K4L+ (work around)
427 // Standard_Real u1 = 2*U1 - 1;
428 // Standard_Real u2 = 2*U2 - 1;
429 // Standard_Real v1 = 2*V1 - 1;
430 // Standard_Real v2 = 2*V2 - 1;
431 //rln C30 (direct use)
432 Standard_Real u1 = U1;
433 Standard_Real u2 = U2;
434 Standard_Real v1 = V1;
435 Standard_Real v2 = V2;
436 Handle(Geom_BezierSurface)::DownCast(theNew)->Segment(u1,u2,v1,v2);
438 myStatus |= ShapeExtend::EncodeStatus ( ShapeExtend_DONE3 );
440 catch (Standard_Failure) {
442 cout << "Warning: ShapeUpgrade_SplitSurface::Build(): Exception in Segment :";
443 Standard_Failure::Caught()->Print(cout); cout << endl;
445 Handle(Geom_Surface) theNewSurf = theNew;
446 theNew = new Geom_RectangularTrimmedSurface(theNewSurf,U1,U2,V1,V2);
448 Surfaces->SetValue((irow-1),(icol-1),theNew);
451 // not a BSpline: trimming instead of segmentation
452 Handle(Geom_RectangularTrimmedSurface) SplittedSurf=
453 new Geom_RectangularTrimmedSurface(theNew,U1,U2,V1,V2);
454 Surfaces->SetValue((irow-1),(icol-1),SplittedSurf);
460 V1 = myVSplitValues->Value(1);
462 Standard_Integer nbU = myUSplitValues->Length();
463 TColStd_Array1OfReal UJoints(1,nbU);
464 Standard_Integer i;//svv Jan 10 2000 : porting on DEC
465 for(i = 1; i <= nbU; i++)
466 UJoints(i) = myUSplitValues->Value(i);
468 Standard_Integer nbV= myVSplitValues->Length();
469 TColStd_Array1OfReal VJoints(1,nbV);
470 for(i = 1; i <= nbV; i++)
471 VJoints(i) = myVSplitValues->Value(i);
472 myResSurfaces->Init(Surfaces,UJoints,VJoints);
473 // if (ShapeUpgrade::Debug()) cout<<"SplitSurface::Build - end"<<endl;
477 //=======================================================================
478 //function : GlobalUKnots
480 //=======================================================================
482 const Handle(TColStd_HSequenceOfReal)& ShapeUpgrade_SplitSurface::USplitValues() const
484 return myUSplitValues;
486 //=======================================================================
487 //function : GlobalVKnots
489 //=======================================================================
491 const Handle(TColStd_HSequenceOfReal)& ShapeUpgrade_SplitSurface::VSplitValues() const
493 return myVSplitValues;
495 //=======================================================================
498 //=======================================================================
500 void ShapeUpgrade_SplitSurface::Perform(const Standard_Boolean Segment)
503 // SetUSplitValues(myUSplitValues);
504 // SetVSplitValues(myVSplitValues);
508 //=======================================================================
511 //=======================================================================
513 void ShapeUpgrade_SplitSurface::Compute(const Standard_Boolean /*Segment*/)
515 myStatus = ShapeExtend::EncodeStatus (ShapeExtend_OK);
517 //=======================================================================
520 //=======================================================================
522 Standard_Boolean ShapeUpgrade_SplitSurface::Status(const ShapeExtend_Status status) const
524 return ShapeExtend::DecodeStatus (myStatus, status);
527 const Handle(ShapeExtend_CompositeSurface)& ShapeUpgrade_SplitSurface::ResSurfaces() const
529 return myResSurfaces;