1 // Copyright (c) 1999-2014 OPEN CASCADE SAS
3 // This file is part of Open CASCADE Technology software library.
5 // This library is free software; you can redistribute it and/or modify it under
6 // the terms of the GNU Lesser General Public License version 2.1 as published
7 // by the Free Software Foundation, with special exception defined in the file
8 // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
9 // distribution for complete text of the license and disclaimer of any warranty.
11 // Alternatively, this file may be used under the terms of Open CASCADE
12 // commercial license or contractual agreement.
14 //:k3 abv 25.11.98 rp1sd.stp
15 //:n4 abv 11.02.99 S4132: recognition of GeometricSet (instead of GeometricCurveSet)
16 // gka 05.04.99 S4136: eliminate parameter lastpreci
17 //gka,abv 14.04.99 S4136: maintain unit context, precision and maxtolerance values
19 #include <BRep_Builder.hxx>
20 #include <BRepCheck_Shell.hxx>
21 #include <BRepCheck_Status.hxx>
22 #include <Geom_Axis2Placement.hxx>
24 #include <gp_Trsf.hxx>
25 #include <HeaderSection_FileName.hxx>
26 #include <Interface_EntityIterator.hxx>
27 #include <Interface_Graph.hxx>
28 #include <Interface_InterfaceModel.hxx>
29 #include <Interface_Macros.hxx>
30 #include <Interface_Static.hxx>
31 #include <Message_Messenger.hxx>
32 #include <Message_ProgressSentry.hxx>
33 #include <OSD_Timer.hxx>
34 #include <Precision.hxx>
35 #include <Standard_ErrorHandler.hxx>
36 #include <Standard_Failure.hxx>
37 #include <Standard_Transient.hxx>
38 #include <Standard_Type.hxx>
39 #include <StepBasic_ProductDefinition.hxx>
40 #include <StepBasic_ProductRelatedProductCategory.hxx>
41 #include <STEPConstruct_Assembly.hxx>
42 #include <STEPConstruct_UnitContext.hxx>
43 #include <STEPControl_ActorRead.hxx>
44 #include <StepData_StepModel.hxx>
45 #include <StepDimTol_DatumFeature.hxx>
46 #include <StepDimTol_GeometricTolerance.hxx>
47 #include <StepDimTol_GeoTolAndGeoTolWthDatRefAndModGeoTolAndPosTol.hxx>
48 #include <StepGeom_Axis2Placement3d.hxx>
49 #include <StepGeom_CartesianTransformationOperator3d.hxx>
50 #include <StepGeom_Direction.hxx>
51 #include <StepGeom_GeometricRepresentationContextAndGlobalUnitAssignedContext.hxx>
52 #include <StepGeom_GeometricRepresentationItem.hxx>
53 #include <StepGeom_GeomRepContextAndGlobUnitAssCtxAndGlobUncertaintyAssCtx.hxx>
54 #include <StepRepr_GlobalUncertaintyAssignedContext.hxx>
55 #include <StepRepr_GlobalUnitAssignedContext.hxx>
56 #include <StepRepr_HArray1OfRepresentationItem.hxx>
57 #include <StepRepr_HSequenceOfRepresentationItem.hxx>
58 #include <StepRepr_ItemDefinedTransformation.hxx>
59 #include <StepRepr_MappedItem.hxx>
60 #include <StepRepr_NextAssemblyUsageOccurrence.hxx>
61 #include <StepRepr_ProductDefinitionShape.hxx>
62 #include <StepRepr_PropertyDefinition.hxx>
63 #include <StepRepr_Representation.hxx>
64 #include <StepRepr_RepresentationContext.hxx>
65 #include <StepRepr_RepresentationMap.hxx>
66 #include <StepRepr_RepresentationRelationship.hxx>
67 #include <StepRepr_ShapeAspect.hxx>
68 #include <StepRepr_ShapeRepresentationRelationship.hxx>
69 #include <StepRepr_ShapeRepresentationRelationshipWithTransformation.hxx>
70 #include <StepRepr_Transformation.hxx>
71 #include <StepShape_AdvancedBrepShapeRepresentation.hxx>
72 #include <StepShape_BrepWithVoids.hxx>
73 #include <StepShape_ContextDependentShapeRepresentation.hxx>
74 #include <StepShape_EdgeBasedWireframeModel.hxx>
75 #include <StepShape_EdgeBasedWireframeShapeRepresentation.hxx>
76 #include <StepShape_FaceBasedSurfaceModel.hxx>
77 #include <StepShape_FaceSurface.hxx>
78 #include <StepShape_FacetedBrep.hxx>
79 #include <StepShape_FacetedBrepAndBrepWithVoids.hxx>
80 #include <StepShape_FacetedBrepShapeRepresentation.hxx>
81 #include <StepShape_GeometricallyBoundedSurfaceShapeRepresentation.hxx>
82 #include <StepShape_GeometricallyBoundedWireframeShapeRepresentation.hxx>
83 #include <StepShape_GeometricSet.hxx>
84 #include <StepShape_ManifoldSolidBrep.hxx>
85 #include <StepShape_ManifoldSurfaceShapeRepresentation.hxx>
86 #include <StepShape_NonManifoldSurfaceShapeRepresentation.hxx>
87 #include <StepShape_ShapeDefinitionRepresentation.hxx>
88 #include <StepShape_ShapeRepresentation.hxx>
89 #include <StepShape_ShellBasedSurfaceModel.hxx>
90 #include <StepToGeom.hxx>
91 #include <StepToTopoDS_Builder.hxx>
92 #include <StepToTopoDS_DataMapOfTRI.hxx>
93 #include <StepToTopoDS_MakeTransformed.hxx>
94 #include <StepToTopoDS_Tool.hxx>
95 #include <StepToTopoDS_TranslateFace.hxx>
96 #include <TColStd_HSequenceOfTransient.hxx>
97 #include <TopExp_Explorer.hxx>
99 #include <TopoDS_Compound.hxx>
100 #include <TopoDS_Face.hxx>
101 #include <TopoDS_Iterator.hxx>
102 #include <TopoDS_Shape.hxx>
103 #include <TopoDS_Shell.hxx>
104 #include <TopoDS_Solid.hxx>
105 #include <TopTools_ListIteratorOfListOfShape.hxx>
106 #include <TopTools_ListOfShape.hxx>
107 #include <TopTools_MapOfShape.hxx>
108 #include <Transfer_Binder.hxx>
109 #include <Transfer_TransientProcess.hxx>
110 #include <TransferBRep.hxx>
111 #include <TransferBRep_ShapeBinder.hxx>
112 #include <UnitsMethods.hxx>
113 #include <XSAlgo.hxx>
114 #include <XSAlgo_AlgoContainer.hxx>
116 IMPLEMENT_STANDARD_RTTIEXT(STEPControl_ActorRead,Transfer_ActorOfTransientProcess)
118 // #include <Interface_InterfaceModel.hxx> // pour mise au point
122 //#include <StepBasic_UncertaintyMeasureWithUnit.hxx>
123 // Representation Relationship & cie
124 // For non-manifold topology processing (ssv; 12.11.2010)
127 // ============================================================================
128 // Function: DumpWhatIs
129 // Purpose: Use it in debug mode to dump your shapes
130 // ============================================================================
133 static void DumpWhatIs(const TopoDS_Shape& S) {
135 TopTools_MapOfShape aMapOfShape;
137 TopTools_ListOfShape aListOfShape;
138 aListOfShape.Append(S);
139 TopTools_ListIteratorOfListOfShape itL(aListOfShape);
140 Standard_Integer nbSolids = 0,
149 if (S.ShapeType() == TopAbs_COMPOUND)
152 for( ; itL.More(); itL.Next() ) {
153 TopoDS_Iterator it( itL.Value() );
154 for ( ; it.More(); it.Next() ) {
155 TopoDS_Shape aSubShape = it.Value();
156 if ( !aMapOfShape.Add(aSubShape) )
158 aListOfShape.Append(aSubShape);
159 if (aSubShape.ShapeType() == TopAbs_COMPOUND)
161 if (aSubShape.ShapeType() == TopAbs_SOLID)
163 if (aSubShape.ShapeType() == TopAbs_SHELL) {
164 if ( !aSubShape.Closed() )
168 if (aSubShape.ShapeType() == TopAbs_FACE)
170 if (aSubShape.ShapeType() == TopAbs_WIRE)
172 if (aSubShape.ShapeType() == TopAbs_EDGE)
174 if (aSubShape.ShapeType() == TopAbs_VERTEX)
179 cout << "//What is?// NB COMPOUNDS: " << nbCompounds << endl;
180 cout << "//What is?// NB SOLIDS: " << nbSolids << endl;
181 cout << "//What is?// NB SHELLS: " << nbShells << endl;
182 cout << "//What is?// OPEN SHELLS: " << nbOpenShells << endl;
183 cout << "//What is?// CLOSED SHELLS: " << nbShells - nbOpenShells << endl;
184 cout << "//What is?// NB FACES: " << nbFaces << endl;
185 cout << "//What is?// NB WIRES: " << nbWires << endl;
186 cout << "//What is?// NB EDGES: " << nbEdges << endl;
187 cout << "//What is?// NB VERTEXES: " << nbVertexes << endl;
192 // Set global var to inform outer methods that current representation item is non-manifold.
193 // The better way is to pass this information via binder or via TopoDS_Shape itself, however,
194 // this is very specific info to do so...
195 Standard_Boolean NM_DETECTED = Standard_False;
198 // ============================================================================
199 // Method : STEPControl_ActorRead::STEPControl_ActorRead ()
200 // Purpose : Empty constructor
201 // ============================================================================
203 STEPControl_ActorRead::STEPControl_ActorRead() {}
205 // ============================================================================
206 // Method : STEPControl_ActorRead::Recognize
207 // Purpose : tells if an entity is valid for transfer by this Actor
208 // ============================================================================
210 Standard_Boolean STEPControl_ActorRead::Recognize
211 (const Handle(Standard_Transient)& start)
213 if (start.IsNull()) return Standard_False;
215 if (start->IsKind(STANDARD_TYPE(StepBasic_ProductDefinition))) return Standard_True;
217 if (start->IsKind(STANDARD_TYPE(StepRepr_NextAssemblyUsageOccurrence))) return Standard_True;
219 TCollection_AsciiString aProdMode = Interface_Static::CVal("read.step.product.mode");
220 if(!aProdMode.IsEqual("ON"))
221 if(start->IsKind(STANDARD_TYPE(StepShape_ShapeDefinitionRepresentation))) return Standard_True;
223 DeclareAndCast(StepShape_ShapeRepresentation,sr,start);
225 Standard_Integer i,nb = sr->NbItems();
226 for (i = 1; i <= nb; i ++) {
227 if (Recognize (sr->ItemsValue(i)) ) return Standard_True;
229 return Standard_False;
232 if (start->IsKind(STANDARD_TYPE(StepShape_FacetedBrep))) return Standard_True;
233 if (start->IsKind(STANDARD_TYPE(StepShape_BrepWithVoids))) return Standard_True;
234 if (start->IsKind(STANDARD_TYPE(StepShape_ManifoldSolidBrep))) return Standard_True;
235 if (start->IsKind(STANDARD_TYPE(StepShape_ShellBasedSurfaceModel))) return Standard_True;
236 if (start->IsKind(STANDARD_TYPE(StepShape_FacetedBrepAndBrepWithVoids))) return Standard_True;
237 if (start->IsKind(STANDARD_TYPE(StepShape_GeometricSet))) return Standard_True;
238 if (start->IsKind(STANDARD_TYPE(StepRepr_MappedItem))) return Standard_True;
239 if (start->IsKind(STANDARD_TYPE(StepShape_FaceSurface))) return Standard_True;
240 if (start->IsKind(STANDARD_TYPE(StepShape_EdgeBasedWireframeModel))) return Standard_True;
241 if (start->IsKind(STANDARD_TYPE(StepShape_FaceBasedSurfaceModel))) return Standard_True;
244 // REPRESENTATION_RELATIONSHIP et consorts : on regarde le contenu ...
245 // On prend WithTransformation ou non ...
247 if (start->IsKind (STANDARD_TYPE(StepRepr_ShapeRepresentationRelationship))) {
248 DeclareAndCast(StepRepr_ShapeRepresentationRelationship,und,start);
250 // On prend son contenu
252 if (Recognize(und->Rep1()) || Recognize(und->Rep2())) return Standard_True;
253 return Standard_False;
256 if (start->IsKind(STANDARD_TYPE(StepShape_ContextDependentShapeRepresentation))) {
257 return Standard_True;
258 // on fait le pari que, si ce n est pas transferable tel quel,
259 // des CDSR implicitement references le sont ...
260 // Sinon cette entite n aurait pas grand sens ...
263 return Standard_False;
267 // ============================================================================
268 // Method : STEPControl_ActorRead::Transfer
269 // Purpose : recursive method that acces to the root entities and start the
271 // ============================================================================
273 Handle(Transfer_Binder) STEPControl_ActorRead::Transfer
274 (const Handle(Standard_Transient)& start,
275 const Handle(Transfer_TransientProcess)& TP)
277 // [BEGIN] Get version of preprocessor (to detect I-Deas case) (ssv; 23.11.2010)
278 Handle(StepData_StepModel) aStepModel = Handle(StepData_StepModel)::DownCast ( TP->Model() );
279 Interface_EntityIterator anEntIt = aStepModel->Header();
280 for ( anEntIt.Start(); anEntIt.More(); anEntIt.Next() ) {
281 DeclareAndCast( HeaderSection_FileName, aFileNameEntity, anEntIt.Value() );
282 if ( !aFileNameEntity.IsNull() ) {
283 Handle(TCollection_HAsciiString) aPPVersion = aFileNameEntity->PreprocessorVersion();
284 if(aPPVersion.IsNull())
287 cout << "Preprocessor version detected: " << aPPVersion->ToCString() << endl;
289 Standard_Integer anIDeasResult = aPPVersion->Search("I-DEAS");
290 if (anIDeasResult != -1) {
292 cout << "Recognized as I-DEAS STP" << endl;
294 myNMTool.SetIDEASCase(Standard_True);
298 // [END] Get version of preprocessor (to detect I-Deas case) (ssv; 23.11.2010)
299 return TransferShape (start,TP);
303 // ============================================================================
304 // auxiliary function : ApplyTransformation
305 // ============================================================================
306 static void ApplyTransformation (TopoDS_Shape& shape, const gp_Trsf &Trsf)
308 if ( Trsf.Form() == gp_Identity ) return;
309 TopLoc_Location theLoc ( Trsf );
314 // ============================================================================
315 // auxiliary function : FindContext
316 // ============================================================================
317 static Handle(StepRepr_Representation) FindContext (const Handle(Standard_Transient) &start,
318 const Handle(Transfer_TransientProcess) &TP,
319 const Standard_Integer level=10 )
321 Handle(StepRepr_Representation) rep;
322 const Interface_Graph& graph = TP->Graph();
323 Interface_EntityIterator subs = graph.Sharings(start);
324 for (subs.Start(); subs.More() && rep.IsNull(); subs.Next()) {
325 rep = Handle(StepRepr_Representation)::DownCast(subs.Value());
326 if ( rep.IsNull() && level >0 ) rep = FindContext ( subs.Value(), TP, level-1 );
331 //=======================================================================
332 //function : FindShapeReprType
333 //purpose : Returns integer corresponding to the type of the representation
334 // as defined in read.step.shape.repr_level parameter
335 //=======================================================================
337 static Standard_Integer FindShapeReprType (const Handle(Standard_Transient) &start)
339 if(start->IsKind(STANDARD_TYPE(StepShape_AdvancedBrepShapeRepresentation)))
341 if(start->IsKind(STANDARD_TYPE(StepShape_ManifoldSurfaceShapeRepresentation)))
343 if(start->IsKind(STANDARD_TYPE(StepShape_GeometricallyBoundedSurfaceShapeRepresentation)))
345 if(start->IsKind(STANDARD_TYPE(StepShape_FacetedBrepShapeRepresentation)))
347 if(start->IsKind(STANDARD_TYPE(StepShape_EdgeBasedWireframeShapeRepresentation)))
349 if(start->IsKind(STANDARD_TYPE(StepShape_GeometricallyBoundedWireframeShapeRepresentation)))
354 //=======================================================================
355 //function : getListSDR
356 //purpose : Get SDRs assigned to ShapeAspect, which may potentially
357 // correspond to hybrid models in AP203 before 1998
358 //=======================================================================
360 static void getListSDR(const Handle(StepRepr_ShapeAspect)& sa,
361 Handle(TColStd_HSequenceOfTransient)& listSDR,
362 const Handle(Transfer_TransientProcess)& TP)
364 const Interface_Graph& graph = TP->Graph();
366 // check whether this ShapeAspect is used in G&DT, and if yes, ignore it
367 if(sa->IsKind(STANDARD_TYPE(StepDimTol_DatumFeature))) return;
368 Interface_EntityIterator subs5 = graph.Sharings(sa);
369 for (subs5.Start(); subs5.More(); subs5.Next()) {
370 if(subs5.Value()->IsKind(STANDARD_TYPE(StepDimTol_GeometricTolerance)))
374 // reiterate by referred entities and take all SDRs; note that SDRs that
375 // refer to sub-shapes of main SDR will be filtered out further during translation
376 subs5 = graph.Sharings(sa);
377 for (subs5.Start(); subs5.More() ; subs5.Next()) {
378 Handle(StepRepr_PropertyDefinition) propd =
379 Handle(StepRepr_PropertyDefinition)::DownCast(subs5.Value());
380 if(propd.IsNull()) continue;
381 Interface_EntityIterator subs6 = graph.Sharings(propd);
382 for (subs6.Start(); subs6.More() ; subs6.Next()) {
383 Handle(StepShape_ShapeDefinitionRepresentation) sdr =
384 Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(subs6.Value());
385 if ( ! sdr.IsNull() )
386 listSDR->Append(sdr);
391 //=======================================================================
393 //purpose : Find all SDRs related to given PDS
394 //=======================================================================
396 static void getSDR(const Handle(StepRepr_ProductDefinitionShape)& PDS,
397 Handle(TColStd_HSequenceOfTransient)& listSDR,
398 Handle(TColStd_HSequenceOfTransient)& listNAUO,
399 Handle(TColStd_HSequenceOfTransient)& listSDRAspect,
400 const Handle(Transfer_TransientProcess)& TP)
402 // Flag indicating preferred shape representation type, to be chosen if
403 // several different representations are attached to the same shape
404 Standard_Integer delta = 100;
405 Standard_Integer ICS = Interface_Static::IVal("read.step.shape.repr");
406 Standard_Integer nbSDR0 = listSDR->Length();
408 // Iterate by entities referring PDS
409 const Interface_Graph& graph = TP->Graph();
410 Handle(StepShape_ShapeDefinitionRepresentation) NeedSDR;
411 Interface_EntityIterator subs4 = graph.Sharings(PDS);
412 for (subs4.Start(); subs4.More(); subs4.Next()) {
414 // Directly assigned SDR
415 Handle(StepShape_ShapeDefinitionRepresentation) sdr =
416 Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(subs4.Value());
417 if ( ! sdr.IsNull() ) {
418 Handle(StepRepr_Representation) rep = sdr->UsedRepresentation();
420 if ( !rep.IsNull()) {
421 // if specific representation type is preferred, choose the
422 // representations of the closest type
423 if ( ICS == 1 ) // translate all SDRs
424 listSDR->Append(sdr);
426 Standard_Integer iDiff = Abs ( FindShapeReprType(rep) - ICS );
427 // if more suitable representation is found, drop previous if any selected
428 if( iDiff < delta ) {
429 while ( listSDR->Length() > nbSDR0 )
430 listSDR->Remove(listSDR->Length());
433 // take all representations of preferred or closest type
434 if ( iDiff <= delta )
435 listSDR->Append(sdr);
441 // SDRs assigned via ShapeAspect; may correspond to hybrid model in AP203 before 1998
442 Handle(StepRepr_ShapeAspect) sa =
443 Handle(StepRepr_ShapeAspect)::DownCast(subs4.Value());
444 if ( ! sa.IsNull() ) {
445 getListSDR(sa,listSDRAspect,TP);
449 // NAUO is used to find sub-assemblies
450 Handle(StepRepr_NextAssemblyUsageOccurrence) NAUO =
451 Handle(StepRepr_NextAssemblyUsageOccurrence)::DownCast(subs4.Value());
452 if ( ! NAUO.IsNull() ) {
453 if ( PDS->Definition().ProductDefinition() == NAUO->RelatingProductDefinition() )
454 listNAUO->Append(NAUO);
461 //=======================================================================
462 //function : TransferEntity
464 //=======================================================================
465 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepBasic_ProductDefinition)& PD,
466 const Handle(Transfer_TransientProcess)& TP)
469 Handle(Message_Messenger) sout = TP->Messenger();
470 Handle(TransferBRep_ShapeBinder) shbinder;
472 TopoDS_Compound Cund;
473 TopoDS_Shape Result1;
475 B.MakeCompound (Cund);
477 // Find subcomponents of assembly (NAUO)
478 // and definitions of shape of the current product (SDR)
479 Handle(TColStd_HSequenceOfTransient) listSDR = new TColStd_HSequenceOfTransient;
480 Handle(TColStd_HSequenceOfTransient) listNAUO = new TColStd_HSequenceOfTransient;
481 Handle(TColStd_HSequenceOfTransient) listSDRAspect = new TColStd_HSequenceOfTransient;
482 const Interface_Graph& graph = TP->Graph();
483 Interface_EntityIterator subs3 = graph.Sharings(PD);
484 for (subs3.Start(); subs3.More() ; subs3.Next()) {
485 // PDS is used to find shape definitions attached to this product
486 Handle(StepRepr_ProductDefinitionShape) PDS =
487 Handle(StepRepr_ProductDefinitionShape)::DownCast(subs3.Value());
488 if ( ! PDS.IsNull() ) {
489 getSDR(PDS,listSDR,listNAUO,listSDRAspect,TP);
492 // NAUO is used to find sub-assemblies
493 Handle(StepRepr_NextAssemblyUsageOccurrence) NAUO =
494 Handle(StepRepr_NextAssemblyUsageOccurrence)::DownCast(subs3.Value());
495 if ( ! NAUO.IsNull() ) {
496 if ( PD == NAUO->RelatingProductDefinition() )
497 listNAUO->Append(NAUO);
502 // Flag indicating whether SDRs associated with the product`s main SDR
503 // by SRRs (which correspond to hybrid model representation in AP203 since 1998)
504 // should be taken into account
505 Standard_Integer readSRR = Interface_Static::IVal("read.step.shape.relationship");
507 // Flag indicating whether SDRs associated with the product`s main SDR
508 // by SAs (which correspond to hybrid model representation in AP203 before 1998)
509 // should be taken into account
510 Standard_Integer readSA = Interface_Static::IVal("read.step.shape.aspect");
512 listSDRAspect->Clear();
514 // remember number of normal SDRs (not those found via ShapeAspect)
515 // and merge both lists in one
516 Standard_Integer nbNotAspect = listSDR->Length();
517 listSDR->Append(listSDRAspect);
519 // Flag indicating level of reading assemblies: only structure (3),
520 // structure with shapes of final parts (2), or everything, including shapes
521 // possibly attached directly to intermediate assemblies (1)
522 // Special mode (4) is used to translate shape attached to this product only,
523 // ignoring sub-assemblies if any
524 Standard_Integer readAssembly = Interface_Static::IVal("read.step.assembly.level");
525 if ( readAssembly ==3 || ( readAssembly ==2 && listNAUO->Length() >0 ) )
527 else if ( readAssembly == 4 )
530 Standard_Integer nbEnt = listSDR->Length() + listNAUO->Length();
534 // common progress indicator for translation of own shapes and sub-assemblies
535 Message_ProgressSentry PS ( TP->GetProgress(), "Part", 0, nbEnt, 1 );
536 Standard_Integer nbComponents=0, nbShapes=0;
538 // translate sub-assemblies
539 for ( Standard_Integer nbNauo =1; nbNauo <= listNAUO->Length() && PS.More(); nbNauo++, PS.Next()) {
540 Handle(StepRepr_NextAssemblyUsageOccurrence) NAUO =
541 Handle(StepRepr_NextAssemblyUsageOccurrence)::DownCast(listNAUO->Value(nbNauo));
544 if (TP->TraceLevel() > 1)
545 sout<<" -- Actor : Ent.n0 "<<TP->Model()->Number(PD)<<" -> Shared Ent.no"<<TP->Model()->Number(NAUO)<<endl;
547 Handle(Transfer_Binder) binder;
548 if (!TP->IsBound(NAUO)) binder = TransferEntity(NAUO,TP);
549 else binder = TP->Find(NAUO);
551 TopoDS_Shape theResult = TransferBRep::ShapeResult (binder);
552 if (!theResult.IsNull()) {
554 // [BEGIN] ssv: OCCT#22436: extra compound in NMSSR case
555 if (NM_DETECTED && Result1.ShapeType() == TopAbs_COMPOUND)
557 TopoDS_Iterator it(Result1);
558 for ( ; it.More(); it.Next() )
560 TopoDS_Shape aSubShape = it.Value();
561 B.Add(Cund, aSubShape);
565 B.Add(Cund, theResult);
566 // [END] ssv: OCCT#22436: extra compound in NMSSR case
571 // translate shapes assigned directly
572 for(Standard_Integer i=1; i <= listSDR->Length() && PS.More(); i++, PS.Next()) {
573 Handle(StepShape_ShapeDefinitionRepresentation) sdr =
574 Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(listSDR->Value(i));
575 Handle(StepShape_ShapeRepresentation) rep = Handle(StepShape_ShapeRepresentation)::DownCast(sdr->UsedRepresentation());
579 // translate SDR representation
580 Standard_Boolean isBound = Standard_True;
581 Handle(Transfer_Binder) binder = TP->Find(rep);
583 binder = TransferEntity(rep,TP,isBound);
585 // if SDR is obtained from ShapeAspect and representation items have already been tramnslated,
586 // this means that that ShapeAspect is used to refer to sub-shape of the main shape
587 // (e.g. for validation properties), and we do not need to translate it actually;
588 // otherwise it is considered as part of hybrid representation in AP203 before 1998
589 if ( i > nbNotAspect && isBound)
592 // record shape resulting from translation
593 TopoDS_Shape theResult;
594 if ( ! binder.IsNull() ) {
595 theResult = TransferBRep::ShapeResult (binder);
596 if (!theResult.IsNull()) {
598 // [BEGIN] ssv: OCCT#22436: extra compound in NMSSR case
599 if (NM_DETECTED && Result1.ShapeType() == TopAbs_COMPOUND)
601 TopoDS_Iterator it(Result1);
602 for ( ; it.More(); it.Next() )
604 TopoDS_Shape aSubShape = it.Value();
605 B.Add(Cund, aSubShape);
609 B.Add(Cund, theResult);
610 // [END] ssv: OCCT#22436: extra compound in NMSSR case
615 // translate possible shapes related by SRRs, which corresponds to
616 // way of writing hybrid models in AP203 since 1998, and AP209
617 // Note that both AP203 and AP209 allow main representation to be non-empty
618 if ( readSRR && /*theResult.IsNull() &&*/ i <= nbNotAspect) {
619 Interface_EntityIterator subs1 = graph.Sharings(rep);
620 Handle(Standard_Type) tSRR = STANDARD_TYPE(StepRepr_ShapeRepresentationRelationship);
621 for (subs1.Start(); subs1.More(); subs1.Next()) {
622 Handle(Standard_Transient) anitem = subs1.Value();
623 if ( anitem->DynamicType() != tSRR ) continue;
624 Handle(StepRepr_ShapeRepresentationRelationship) SRR =
625 Handle(StepRepr_ShapeRepresentationRelationship)::DownCast(anitem);
626 Standard_Integer nbrep = ( rep == SRR->Rep1() ? 2 : 1 );
627 binder = TransferEntity(SRR, TP, nbrep);
628 if ( ! binder.IsNull() ) {
629 theResult = TransferBRep::ShapeResult (binder);
631 B.Add(Cund, theResult);
638 // make a warning if both own shape and sub-assemblies are present
639 if ( nbShapes >0 && nbComponents > 0 )
640 TP->AddWarning ( PD, "Product has both sub-assemblies and directly assigned shape" );
642 // if only single shape is read, add it as it is; otherwise add compound
643 if( nbShapes == 1 && nbComponents == 0 )
644 shbinder = new TransferBRep_ShapeBinder (Result1);
646 shbinder = new TransferBRep_ShapeBinder (Cund);
648 //TP->Unbind( PD ); //:j3: unbind start (let it be bound by TransferProcess)
649 TP->Bind(PD, shbinder);
653 //=======================================================================
654 //function : TransferEntity
656 //=======================================================================
658 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepRepr_NextAssemblyUsageOccurrence)& NAUO ,
659 const Handle(Transfer_TransientProcess)& TP)
661 Handle(TransferBRep_ShapeBinder) shbinder;
662 Handle(StepBasic_ProductDefinition) PD;
663 const Interface_Graph& graph = TP->Graph();
665 Standard_Boolean iatrsf=Standard_False, SRRReversed=Standard_False, IsDepend=Standard_False;
666 Handle(StepRepr_ShapeRepresentationRelationship) SRR;
667 Interface_EntityIterator subs1 = graph.Sharings(NAUO);
668 for (subs1.Start(); subs1.More(); subs1.Next()) {
669 Handle(StepRepr_ProductDefinitionShape) PDS =
670 Handle(StepRepr_ProductDefinitionShape)::DownCast(subs1.Value());
671 if(PDS.IsNull()) continue;
672 Interface_EntityIterator subs2 = graph.Sharings(PDS);
673 for (subs2.Start(); subs2.More(); subs2.Next()) {
674 Handle(StepShape_ContextDependentShapeRepresentation) CDSR =
675 Handle(StepShape_ContextDependentShapeRepresentation)::DownCast(subs2.Value());
676 if (CDSR.IsNull()) continue;
677 IsDepend=Standard_True;
678 Handle(StepRepr_RepresentationRelationship) RR = CDSR->RepresentationRelation();
679 if (RR.IsNull()) continue;
680 SRRReversed = STEPConstruct_Assembly::CheckSRRReversesNAUO ( graph, CDSR );
681 Handle(StepRepr_Representation) rep = ( SRRReversed ? RR->Rep2() : RR->Rep1() );
684 iatrsf = ComputeSRRWT ( RR, TP, Trsf );
685 // find real ProductDefinition used rep
686 Interface_EntityIterator subs3 = TP->Graph().Sharings(rep);
687 for (subs3.Start(); subs3.More(); subs3.Next()) {
688 const Handle(Standard_Transient)& aSubs3Val = subs3.Value();
689 if (Handle(StepShape_ShapeDefinitionRepresentation) SDR =
690 Handle(StepShape_ShapeDefinitionRepresentation)::DownCast (aSubs3Val))
692 Handle(StepRepr_ProductDefinitionShape) PDS1 =
693 Handle(StepRepr_ProductDefinitionShape)::DownCast(SDR->Definition().PropertyDefinition());
694 if(PDS1.IsNull()) continue;
695 Interface_EntityIterator subs4 = graph.Shareds(PDS1);
696 for (subs4.Start(); PD.IsNull() && subs4.More(); subs4.Next())
698 PD = Handle(StepBasic_ProductDefinition)::DownCast(subs4.Value());
701 else if (aSubs3Val->IsKind (STANDARD_TYPE(StepRepr_ShapeRepresentationRelationship)))
703 // NB: C cast is used instead of DownCast() to improve performance on some cases.
704 // This saves ~10% of elapsed time on "testgrid perf de bug29* -parallel 0".
705 SRR = (StepRepr_ShapeRepresentationRelationship*)(aSubs3Val.get());
711 Handle(Transfer_Binder) binder;
712 TopoDS_Shape theResult;
718 binder = TP->Find(PD);
719 if ( binder.IsNull() ) binder = TransferEntity(PD,TP);
720 theResult = TransferBRep::ShapeResult(binder);
721 if (!theResult.IsNull()) {
723 if ( SRRReversed ) ApplyTransformation ( theResult, Trsf.Inverted() );
724 else ApplyTransformation ( theResult, Trsf );
726 shbinder = new TransferBRep_ShapeBinder (theResult);
730 if ( theResult.IsNull() && !SRR.IsNull() ) {
731 binder = TP->Find(SRR);
732 if ( binder.IsNull() ) {
733 binder = TransferEntity(SRR,TP);
734 theResult = TransferBRep::ShapeResult (binder);
735 if (!theResult.IsNull())
736 shbinder = new TransferBRep_ShapeBinder (theResult);
741 TP->Bind(NAUO, shbinder);
745 //=======================================================================
746 //function : TransferEntity
748 //=======================================================================
750 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepShape_ShapeRepresentation)& sr,
751 const Handle(Transfer_TransientProcess)& TP,
752 Standard_Boolean& isBound)
754 NM_DETECTED = Standard_False;
755 Handle(TransferBRep_ShapeBinder) shbinder;
758 isBound = Standard_False;
759 Standard_Integer nb = sr->NbItems();
760 // Used in XSAlgo::AlgoContainer()->ProcessShape (ssv; 13.11.2010)
761 Standard_Integer nbTPitems = TP->NbMapped();
762 Handle(Message_Messenger) sout = TP->Messenger();
764 if (TP->TraceLevel() > 2)
765 sout<<" -- Actor : case ShapeRepr. NbItems="<<nb<<endl;
768 // Compute unit convertion factors and geometric Accuracy
769 Handle(StepRepr_Representation) oldSRContext = mySRContext; //:S4136
773 TopoDS_Compound comp;
774 B.MakeCompound (comp);
775 TopoDS_Shape OneResult;
776 Standard_Integer nsh = 0;
777 Message_ProgressSentry PS ( TP->GetProgress(), "Sub-assembly", 0, nb, 1 );
779 // [BEGIN] Proceed with non-manifold topology (ssv; 12.11.2010)
780 Standard_Boolean isNMMode = Interface_Static::IVal("read.step.nonmanifold") != 0;
781 Standard_Boolean isManifold = Standard_True;
782 if ( isNMMode && sr->IsKind(STANDARD_TYPE(StepShape_NonManifoldSurfaceShapeRepresentation)) ) {
783 isManifold = Standard_False;
784 NM_DETECTED = Standard_True;
786 Standard_Integer NMSSRItemsLen = sr->Items()->Length();
787 cout << "NMSSR with " << NMSSRItemsLen << " items detected" << endl;
790 // Special processing for I-DEAS STP case (ssv; 15.11.2010)
792 Standard_Integer isIDeasMode = Interface_Static::IVal("read.step.ideas");
793 if (isNMMode && myNMTool.IsIDEASCase() && isIDeasMode) {
794 isManifold = Standard_False;
795 NM_DETECTED = Standard_True;
797 cout << "I-DEAS post processing for non-manifold topology ENABLED" << endl;
801 else if ( myNMTool.IsIDEASCase() )
802 cout << "I-DEAS post processing for non-manifold topology DISABLED" << endl;
806 // Don't use NM tool in manifold cases (ssv; 24.11.2010)
807 myNMTool.SetActive(!isManifold && isNMMode);
808 // [END] Proceed with non-manifold topology (ssv; 12.11.2010)
810 for (Standard_Integer i = 1; i <= nb && PS.More(); i ++,PS.Next()) {
811 //for (i = 1; i <= nb ; i ++) {
813 if (TP->TraceLevel() > 2)
814 sout<<" -- Actor, shape_representation.item n0. "<<i<<endl;
816 Handle(StepRepr_RepresentationItem) anitem = sr->ItemsValue(i);
817 Handle(Transfer_Binder) binder;
818 if (!TP->IsBound(anitem)) {
819 binder = TransferShape(anitem, TP, isManifold);
822 isBound = Standard_True;
823 binder = TP->Find(anitem);
825 TopoDS_Shape theResult = TransferBRep::ShapeResult (binder);
826 if (!theResult.IsNull()) {
827 OneResult = theResult;
828 B.Add(comp, theResult);
833 // [BEGIN] Proceed with non-manifold topology (ssv; 12.11.2010)
836 Handle(Standard_Transient) info;
837 // IMPORTANT: any fixing on non-manifold topology must be done after the shape is transferred from STEP
838 TopoDS_Shape fixedResult =
839 XSAlgo::AlgoContainer()->ProcessShape( comp, myPrecision, myMaxTol,
840 "read.step.resource.name",
841 "read.step.sequence", info,
842 TP->GetProgress(), Standard_True);
843 XSAlgo::AlgoContainer()->MergeTransferInfo(TP, info, nbTPitems);
845 if (fixedResult.ShapeType() == TopAbs_COMPOUND)
847 comp = TopoDS::Compound(fixedResult);
852 B.MakeCompound(comp);
853 B.Add(comp, fixedResult);
856 BRep_Builder brepBuilder;
858 // [BEGIN] Try to close OPEN Shells in I-DEAS case (ssv; 17.11.2010)
859 if ( myNMTool.IsIDEASCase() ) {
861 // ==========================================================
862 // For each Shell (always OPEN in I-DEAS case) find all
863 // the possibilities to close it with adjacent non-manifold
864 // Shells which are stored separately in I-DEAS-like STP
865 // ==========================================================
867 TopTools_IndexedDataMapOfShapeListOfShape shellClosingsMap;
868 // Find possible closings for each shell
869 this->computeIDEASClosings(comp, shellClosingsMap);
871 // Make compound to store closed Shells
872 TopoDS_Compound compWithClosings;
873 brepBuilder.MakeCompound(compWithClosings);
875 // Attempt to close Shells one-by-one
876 for (Standard_Integer i = 1; i <= shellClosingsMap.Extent(); i++) {
877 TopoDS_Shell adjustedShell = this->closeIDEASShell( TopoDS::Shell( shellClosingsMap.FindKey(i) ),
878 shellClosingsMap.FindFromIndex(i) );
879 brepBuilder.Add(compWithClosings, adjustedShell);
881 // Put not suspected open Shells as they are (updated 23.11.2010)
882 TopExp_Explorer allShellsExp(comp, TopAbs_SHELL);
883 for ( ; allShellsExp.More(); allShellsExp.Next() ) {
884 TopoDS_Shape aCurrentShell = allShellsExp.Current();
885 if ( !myNMTool.IsPureNMShell(aCurrentShell) && !shellClosingsMap.Contains(aCurrentShell) )
886 brepBuilder.Add(compWithClosings, aCurrentShell);
888 comp = compWithClosings;
890 // [END] Try to close OPEN Shells in I-DEAS case (ssv; 17.11.2010)
892 // [BEGIN] Reconstruct Solids from Closed Shells (ssv; 15.11.2010)
893 TopoDS_Compound reconstComp;
894 brepBuilder.MakeCompound(reconstComp);
895 TopExp_Explorer exp(comp, TopAbs_SHELL);
896 for (; exp.More(); exp.Next())
898 TopoDS_Shape aSubShape = exp.Current();
899 if (aSubShape.ShapeType() == TopAbs_SHELL && aSubShape.Closed()) {
900 TopoDS_Solid nextSolid;
901 brepBuilder.MakeSolid(nextSolid);
902 brepBuilder.Add(nextSolid, aSubShape);
903 brepBuilder.Add(reconstComp, nextSolid);
905 else if (aSubShape.ShapeType() == TopAbs_SHELL)
906 brepBuilder.Add(reconstComp, aSubShape);
909 // [END] Reconstruct Solids from Closed Shells (ssv; 15.11.2010)
912 // Bind the resulting shape
913 if (nsh == 0) shbinder.Nullify();
914 else if (nsh == 1) shbinder = new TransferBRep_ShapeBinder (OneResult);
915 else shbinder = new TransferBRep_ShapeBinder (comp);
917 PrepareUnits ( oldSRContext, TP ); //:S4136
918 TP->Bind(sr, shbinder);
928 //=======================================================================
929 //function : TransferEntity
931 //=======================================================================
933 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepShape_ContextDependentShapeRepresentation)& CDSR,
934 const Handle(Transfer_TransientProcess)& TP)
936 Handle(TransferBRep_ShapeBinder) shbinder;
937 //:j2: treat SRRs here in order to compare them with NAUO
938 Handle(StepRepr_ShapeRepresentationRelationship) SRR = CDSR->RepresentationRelation();
939 if ( SRR.IsNull() ) return shbinder;
941 Standard_Boolean SRRReversed = STEPConstruct_Assembly::CheckSRRReversesNAUO ( TP->Graph(), CDSR );
942 Handle(StepRepr_Representation) rep1 = ( SRRReversed ? SRR->Rep2() : SRR->Rep1() );
943 Handle(StepShape_ShapeRepresentation) rep = Handle(StepShape_ShapeRepresentation)::DownCast(rep1);
946 TP->AddWarning ( SRR, "SRR reverses relation defined by NAUO; NAUO definition is taken" );
948 TopoDS_Shape theResult;
951 Standard_Boolean iatrsf = ComputeSRRWT ( SRR, TP, Trsf );
953 Handle(Transfer_Binder) binder;
954 Standard_Boolean isBound = Standard_False;
955 if (!TP->IsBound(rep)) binder = TransferEntity(rep,TP,isBound);
956 else binder = TP->Find(rep);
957 theResult = TransferBRep::ShapeResult (binder);
959 if ( ! theResult.IsNull() ) {
961 if ( SRRReversed ) ApplyTransformation ( theResult, Trsf.Inverted() );
962 else ApplyTransformation ( theResult, Trsf );
964 shbinder = new TransferBRep_ShapeBinder (theResult);
966 else shbinder.Nullify();
967 TP->Bind(CDSR, shbinder);
971 //=======================================================================
972 //function : TransferEntity
974 //=======================================================================
976 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepRepr_ShapeRepresentationRelationship)& und,
977 const Handle(Transfer_TransientProcess)& TP,
978 const Standard_Integer nbrep)
980 // REPRESENTATION_RELATIONSHIP et la famille
981 Handle(TransferBRep_ShapeBinder) shbinder;
983 if (und.IsNull()) return shbinder;
985 // On prend son contenu : Rep1 ou Rep2 , that is the question
986 // on prend les 2. Mais quoi faire des axes
988 TopoDS_Compound Cund;
989 TopoDS_Shape OneResult;
991 B.MakeCompound (Cund);
992 Standard_Integer nsh = 0;
995 Standard_Boolean iatrsf = ComputeSRRWT ( und, TP, Trsf );
997 // Transfert : que faut-il prendre au juste ?
999 for (Standard_Integer i = 1; i <= 2; i ++) {
1000 if(nbrep && nbrep != i)
1002 Handle(StepRepr_Representation) anitemt;
1003 if (i == 1) anitemt = und->Rep1();
1004 if (i == 2) anitemt = und->Rep2();
1005 Handle(StepShape_ShapeRepresentation) anitem = Handle(StepShape_ShapeRepresentation)::DownCast(anitemt);
1006 Handle(Transfer_Binder) binder;
1007 Standard_Boolean isBound = Standard_False;
1008 if (!TP->IsBound(anitem)) binder = TransferEntity(anitem,TP,isBound);
1009 else binder = TP->Find(anitem);
1010 TopoDS_Shape theResult = TransferBRep::ShapeResult (binder);
1011 if (!theResult.IsNull()) {
1012 OneResult = theResult;
1013 B.Add(Cund, theResult);
1018 // La Transformation : selon les cas
1020 // Appliquer la transformation
1023 if (nsh == 1) ApplyTransformation ( OneResult, Trsf );
1024 else if (nsh > 1) ApplyTransformation ( Cund, Trsf );
1026 if (nsh == 0) shbinder.Nullify();
1027 else if (nsh == 1) shbinder = new TransferBRep_ShapeBinder (OneResult);
1028 else shbinder = new TransferBRep_ShapeBinder (Cund);
1029 TP->Bind(und, shbinder);
1034 //=======================================================================
1035 //function : IsNeedRepresentation
1037 //=======================================================================
1039 static Standard_Boolean IsNeedRepresentation(const Handle(StepRepr_ShapeAspect)& sa,
1040 const Handle(StepRepr_Representation)&repA ,
1041 const Handle(Transfer_TransientProcess)& TP)
1043 Standard_Boolean IsSDRaspect=Standard_True;
1044 Handle(StepRepr_ProductDefinitionShape) PDSA = sa->OfShape();
1045 const Interface_Graph& graph = TP->Graph();
1046 Interface_EntityIterator subs7 = graph.Sharings(PDSA);
1047 for (subs7.Start(); ! PDSA.IsNull() && subs7.More(); subs7.Next()) {
1048 Handle(StepShape_ShapeDefinitionRepresentation) sdrA =
1049 Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(subs7.Value());
1050 if ( sdrA.IsNull() ) continue;
1051 // abv 23 Feb 00: use iterator to take into account AP203 hybrid models
1052 Interface_EntityIterator subs8 = graph.Shareds(sdrA);
1053 for (subs8.Start(); subs8.More(); subs8.Next()) {
1054 Handle(StepRepr_Representation) rep2 =
1055 Handle(StepRepr_Representation)::DownCast ( subs8.Value() );
1056 if ( rep2.IsNull() ) {
1057 Handle(StepRepr_ShapeRepresentationRelationship) SRR =
1058 Handle(StepRepr_ShapeRepresentationRelationship)::DownCast ( subs8.Value() );
1059 if ( SRR.IsNull() ) continue;
1060 rep2 = ( sdrA->UsedRepresentation() == SRR->Rep1() ? SRR->Rep2() : SRR->Rep1() );
1062 Standard_Integer i, j; // svv Jan 11 2000 : porting on DEC
1063 for ( i=1; i <= repA->NbItems(); i++ ) {
1064 Handle(StepRepr_RepresentationItem) it = repA->ItemsValue(i);
1065 for ( j=1; j <= rep2->NbItems(); j++ )
1066 if ( it == rep2->ItemsValue(j) ) break;
1067 if ( j > rep2->NbItems() ) break;
1069 if ( i > repA->NbItems() ) IsSDRaspect=Standard_False;
1074 //=======================================================================
1077 //=======================================================================
1079 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::OldWay(const Handle(Standard_Transient)& start,
1080 const Handle(Transfer_TransientProcess)& TP)
1082 Handle(Message_Messenger) sout = TP->Messenger();
1083 const Interface_Graph& graph = TP->Graph();
1084 Handle(TransferBRep_ShapeBinder) shbinder;
1085 DeclareAndCast(StepShape_ShapeDefinitionRepresentation,sdr,start);
1086 Handle(StepRepr_Representation) rep = sdr->UsedRepresentation();
1088 // abv 7 Oct 99: TRJ2: skip SDRs used only for defining SHAPE_ASPECT (validation properties)
1089 // BUT ONLY if they have representation duplicated with other SDR,
1090 // (SHAPE_ASPECT also used by some systems to define geometry)
1091 Handle(StepRepr_PropertyDefinition) PD = sdr->Definition().PropertyDefinition();
1092 if ( ! PD.IsNull() ) {
1093 Handle(StepRepr_ShapeAspect) SA = PD->Definition().ShapeAspect();
1094 if ( ! SA.IsNull() ) {
1095 if(!IsNeedRepresentation(SA,rep,TP))
1101 if (TP->TraceLevel() > 2)
1102 sout<<" -- Actor : case shape_definition_representation."<<endl;
1104 Handle(Transfer_Binder) binder = TP->Find(rep);
1105 if (binder.IsNull()) binder = TP->Transferring(rep);
1106 //:j2 if (!binder.IsNull()) return binder;
1108 // SDR designant des CDSR (lien implicite, via la UsedRepr)
1110 TopoDS_Compound Cund;
1111 TopoDS_Shape OneResult;
1113 B.MakeCompound (Cund);
1114 Standard_Integer nsh = 0;
1117 shbinder = new TransferBRep_ShapeBinder;
1118 TP->Bind ( start, shbinder ); //:j3 abv 23 Oct 98: rp1sd.stp: bind something to protect against loops
1119 if (!binder.IsNull()) {
1120 TopoDS_Shape theResult = TransferBRep::ShapeResult (binder);
1121 if (!theResult.IsNull()) {
1122 OneResult = theResult;
1123 B.Add(Cund, theResult);
1125 shbinder->SetResult (theResult);
1129 // process subcomponents of assembly (CDSR) and hybrid models (SRR)
1130 Interface_EntityIterator subs = graph.Shareds(start);
1131 Handle(Standard_Type) tCDSR = STANDARD_TYPE(StepShape_ContextDependentShapeRepresentation);
1132 Handle(Standard_Type) tSRR = STANDARD_TYPE(StepRepr_ShapeRepresentationRelationship);
1133 Standard_Integer nbitem=0;
1134 for (subs.Start();subs.More();subs.Next()) nbitem++;
1135 Message_ProgressSentry PS ( TP->GetProgress(), "Sub", 0, nbitem, 1 );
1136 for (subs.Start(); subs.More() && PS.More(); subs.Next() ,PS.Next()) {
1137 Handle(Standard_Transient) anitem = subs.Value();
1138 if ( anitem->DynamicType() != tCDSR && anitem->DynamicType() != tSRR ) continue;
1139 // DeclareAndCast(StepShape_ContextDependentShapeRepresentation,anitem,subs.Value());
1140 // if (anitem.IsNull()) continue;
1142 if (TP->TraceLevel() > 1)
1143 sout<<" -- Actor : Ent.n0 "<<TP->Model()->Number(start)<<" -> Shared Ent.no"<<TP->Model()->Number(anitem)<<endl;
1146 if (!TP->IsBound(anitem)) binder = TP->Transferring(anitem);
1147 else binder = TP->Find(anitem);
1148 TopoDS_Shape theResult = TransferBRep::ShapeResult (binder);
1149 if (!theResult.IsNull()) {
1150 OneResult = theResult;
1151 B.Add(Cund, theResult);
1152 nsh += 2; //abv 11.10.00: 2 instead of 1 in order to keep assembly structure
1156 if (nsh == 0) shbinder = new TransferBRep_ShapeBinder (Cund);//shbinder.Nullify();
1157 else if (nsh == 1) shbinder = new TransferBRep_ShapeBinder (OneResult);
1158 else shbinder = new TransferBRep_ShapeBinder (Cund);
1159 TP->Unbind( start ); //:j3: unbind start (let it be bound by TransferProcess)
1163 //=======================================================================
1164 //function : TransferEntity
1166 //=======================================================================
1168 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepGeom_GeometricRepresentationItem)& start,
1169 const Handle(Transfer_TransientProcess)& TP,
1170 const Standard_Boolean isManifold)
1172 Handle(Message_Messenger) sout = TP->Messenger();
1173 Handle(TransferBRep_ShapeBinder) shbinder;
1174 Standard_Boolean found = Standard_False;
1175 StepToTopoDS_Builder myShapeBuilder;
1176 TopoDS_Shape mappedShape;
1177 Standard_Integer nbTPitems = TP->NbMapped();
1180 if (TP->TraceLevel() > 2)
1181 sout << "Begin transfer STEP -> CASCADE, Type "
1182 << start->DynamicType()->Name() << endl;
1187 Handle(StepRepr_Representation) oldSRContext = mySRContext;
1188 if ( mySRContext.IsNull() ) { // if no context, try to find it (ex: r0701_ug.stp #4790)
1189 Handle(StepRepr_Representation) context = FindContext ( start, TP );
1190 if ( context.IsNull() ) {
1191 TP->AddWarning ( start, "Entity with no unit context; default units taken" );
1194 else PrepareUnits ( context, TP );
1196 myShapeBuilder.SetPrecision(myPrecision);
1197 myShapeBuilder.SetMaxTol(myMaxTol);
1199 // Start progress scope (no need to check if progress exists -- it is safe)
1200 Message_ProgressSentry aPSentry(TP->GetProgress(), "Transfer stage", 0, 2, 1);
1204 if (start->IsKind(STANDARD_TYPE(StepShape_FacetedBrep))) {
1205 myShapeBuilder.Init(GetCasted(StepShape_FacetedBrep, start), TP);
1206 found = Standard_True;
1208 else if (start->IsKind(STANDARD_TYPE(StepShape_BrepWithVoids))) {
1209 myShapeBuilder.Init(GetCasted(StepShape_BrepWithVoids, start), TP);
1210 found = Standard_True;
1212 else if (start->IsKind(STANDARD_TYPE(StepShape_ManifoldSolidBrep))) {
1213 myShapeBuilder.Init(GetCasted(StepShape_ManifoldSolidBrep, start), TP);
1214 found = Standard_True;
1216 else if (start->IsKind(STANDARD_TYPE(StepShape_ShellBasedSurfaceModel))) {
1217 myShapeBuilder.Init(GetCasted(StepShape_ShellBasedSurfaceModel, start), TP, myNMTool);
1218 found = Standard_True;
1220 else if (start->IsKind(STANDARD_TYPE(StepShape_FacetedBrepAndBrepWithVoids))) {
1221 myShapeBuilder.Init(GetCasted(StepShape_FacetedBrepAndBrepWithVoids, start), TP);
1222 found = Standard_True;
1224 else if (start->IsKind(STANDARD_TYPE(StepShape_GeometricSet))) {
1225 myShapeBuilder.Init(GetCasted(StepShape_GeometricSet, start), TP, this, isManifold);
1226 found = Standard_True;
1228 else if (start->IsKind(STANDARD_TYPE(StepShape_EdgeBasedWireframeModel))) {
1229 myShapeBuilder.Init(GetCasted(StepShape_EdgeBasedWireframeModel, start), TP);
1230 found = Standard_True;
1232 else if (start->IsKind(STANDARD_TYPE(StepShape_FaceBasedSurfaceModel))) {
1233 myShapeBuilder.Init(GetCasted(StepShape_FaceBasedSurfaceModel, start), TP);
1234 found = Standard_True;
1237 catch(Standard_Failure const&) {
1238 TP->AddFail(start,"Exeption is raised. Entity was not translated.");
1239 TP->Bind(start, shbinder);
1245 if (found && myShapeBuilder.IsDone()) {
1246 mappedShape = myShapeBuilder.Value();
1247 // Apply ShapeFix (on manifold shapes only. Non-manifold topology is processed separately: ssv; 13.11.2010)
1249 Handle(Standard_Transient) info;
1251 XSAlgo::AlgoContainer()->ProcessShape( mappedShape, myPrecision, myMaxTol,
1252 "read.step.resource.name",
1253 "read.step.sequence", info,
1254 TP->GetProgress() );
1255 XSAlgo::AlgoContainer()->MergeTransferInfo(TP, info, nbTPitems);
1258 found = !mappedShape.IsNull();
1259 if (found && shbinder.IsNull()) shbinder = new TransferBRep_ShapeBinder (mappedShape);
1262 if (TP->TraceLevel() > 2)
1263 sout<<"End transfer STEP -> CASCADE :" << (found ? "OK" : " : no result")<<endl;
1264 if (TP->TraceLevel() > 2)
1267 if ( oldSRContext.IsNull() && ! mySRContext.IsNull() ) //:S4136
1268 PrepareUnits ( oldSRContext, TP );
1269 TP->Bind(start, shbinder);
1274 //=======================================================================
1275 //function : TransferEntity
1277 //=======================================================================
1279 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepRepr_MappedItem)& mapit,
1280 const Handle(Transfer_TransientProcess)& TP)
1282 Handle(TransferBRep_ShapeBinder) shbinder;
1284 // --------------------------------------------------------------
1285 // On se trouve ici dans un contexte " d'assemblage geometrique "
1287 // --------------------------------------------------------------
1289 //:S4136: abv 20 Apr 99: as1ug.stp: MAPPED_ITEM transformation computed
1290 // taking into account units of origin and target SHAPE_REPRESENTATIONs
1292 // La Shape, et la mise en position
1293 Handle(StepShape_ShapeRepresentation) maprep = Handle(StepShape_ShapeRepresentation)::
1294 DownCast(mapit->MappingSource()->MappedRepresentation());
1295 Standard_Boolean isBound = Standard_False;
1296 Handle(Transfer_Binder) binder = TP->Find(maprep);
1297 if (binder.IsNull()) binder = TransferEntity(maprep,TP,isBound);
1298 shbinder = Handle(TransferBRep_ShapeBinder)::DownCast(binder);
1299 if (shbinder.IsNull()) TP->AddWarning(mapit,"No Shape Produced");
1301 TopoDS_Shape mappedShape = shbinder->Result();
1302 if ( ! mappedShape.IsNull() ) {
1304 // Positionnement : 2 formules
1305 // 1/ Ax2 dans Source et comme Target : passage de Source a Target
1306 // 2/ CartesianOperator3d comme Target : on applique
1309 Standard_Boolean ok = Standard_False;
1311 Handle(StepGeom_CartesianTransformationOperator3d) CartOp =
1312 Handle(StepGeom_CartesianTransformationOperator3d)::DownCast(mapit->MappingTarget());
1313 if ( ! CartOp.IsNull() ) {
1314 ok = StepToGeom::MakeTransformation3d (CartOp, Trsf);
1317 Handle(StepGeom_Axis2Placement3d) Origin =
1318 Handle(StepGeom_Axis2Placement3d)::DownCast(mapit->MappingSource()->MappingOrigin());
1319 Handle(StepGeom_Axis2Placement3d) Target =
1320 Handle(StepGeom_Axis2Placement3d)::DownCast(mapit->MappingTarget());
1321 if ( ! Origin.IsNull() && ! Target.IsNull() ) {
1323 Handle(StepRepr_Representation) rep = mySRContext; // NOTE: copy of handle !
1324 ComputeTransformation ( Origin, Target, maprep, rep, TP, Trsf );
1329 if ( ok ) ApplyTransformation ( mappedShape, Trsf );
1330 else TP->AddWarning (mapit,"Mapped Item, case not recognized, location ignored");
1332 shbinder = new TransferBRep_ShapeBinder (mappedShape);
1335 TP->Bind(mapit, shbinder);
1338 //=======================================================================
1339 //function : TransferEntity
1341 //=======================================================================
1343 Handle(TransferBRep_ShapeBinder) STEPControl_ActorRead::TransferEntity(const Handle(StepShape_FaceSurface)& fs,
1344 const Handle(Transfer_TransientProcess)& TP)
1347 // Cas bien utile meme si non reconnu explicitement
1348 Handle(TransferBRep_ShapeBinder) sb;
1349 Standard_Integer nbTPitems = TP->NbMapped();
1353 StepToTopoDS_Tool myTool;
1354 StepToTopoDS_DataMapOfTRI aMap;
1356 myTool.Init(aMap, TP);
1357 StepToTopoDS_TranslateFace myTF;
1358 myTF.SetPrecision(myPrecision);
1359 myTF.SetMaxTol(myMaxTol);
1361 // Non-manifold topology is not processed here (ssv; 15.11.2010)
1362 StepToTopoDS_NMTool dummyNMTool;
1363 myTF.Init(fs, myTool, dummyNMTool);
1364 Handle(StepRepr_Representation) oldSRContext = mySRContext;
1365 if (mySRContext.IsNull()) { // if no context, try to find it (ex: r0701_ug.stp #4790)
1366 Handle(StepRepr_Representation) context = FindContext(fs, TP);
1367 if (context.IsNull()) {
1368 TP->AddWarning(fs, "Entity with no unit context; default units taken");
1371 else PrepareUnits(context, TP);
1375 Handle(Transfer_Binder) binder = TP->Find(fs);
1376 sb = Handle(TransferBRep_ShapeBinder)::DownCast(binder);
1377 if (!sb.IsNull() && !sb->Result().IsNull()) {
1378 TopoDS_Shape S = sb->Result();
1380 Handle(Standard_Transient) info;
1381 TopoDS_Shape shape = XSAlgo::AlgoContainer()->ProcessShape(S, myPrecision, myMaxTol,
1382 "read.step.resource.name",
1383 "read.step.sequence", info,
1385 // TopoDS_Shape shape = XSAlgo::AlgoContainer()->PerformFixShape( S, TP, myPrecision, myMaxTol );
1387 sb->SetResult(shape);
1389 XSAlgo::AlgoContainer()->MergeTransferInfo(TP, info, nbTPitems);
1393 if (oldSRContext.IsNull() && !mySRContext.IsNull()) //:S4136
1394 PrepareUnits(oldSRContext, TP);
1396 return sb; // TP->Find (start);
1398 catch(Standard_Failure const&)
1400 TP->AddFail(fs,"Exeption is raised. Entity was not translated.");
1406 //=======================================================================
1407 //function : TransferShape
1409 //=======================================================================
1411 Handle(Transfer_Binder) STEPControl_ActorRead::TransferShape(const Handle(Standard_Transient)& start,
1412 const Handle(Transfer_TransientProcess)& TP,
1413 const Standard_Boolean isManifold)
1415 if (start.IsNull()) return NullResult();
1416 XSAlgo::AlgoContainer()->PrepareForTransfer();
1418 Handle(Message_Messenger) sout = TP->Messenger();
1420 // POUR MISE AU POINT, a supprimer ensuite
1421 if (TP->TraceLevel() > 1)
1422 sout<<" -- Actor : Transfer Ent.n0 "<<TP->Model()->Number(start)<<" Type "<<start->DynamicType()->Name()<<endl;
1425 Handle(TransferBRep_ShapeBinder) shbinder;
1428 // Product Definition Entities
1429 // They should be treated with Design Manager
1430 // case ShapeDefinitionRepresentation if ProductMode != ON
1431 TCollection_AsciiString aProdMode = Interface_Static::CVal("read.step.product.mode");
1432 if(!aProdMode.IsEqual("ON") &&
1433 start->IsKind(STANDARD_TYPE(StepShape_ShapeDefinitionRepresentation)))
1434 shbinder = OldWay(start,TP);
1437 else if (start->IsKind(STANDARD_TYPE(StepBasic_ProductDefinition))) {
1438 Handle(StepBasic_ProductDefinition) PD =
1439 Handle(StepBasic_ProductDefinition)::DownCast(start);
1440 shbinder = TransferEntity(PD, TP);
1443 // NextAssemblyUsageOccurrence
1444 else if (start->IsKind(STANDARD_TYPE(StepRepr_NextAssemblyUsageOccurrence))) {
1445 Handle(StepRepr_NextAssemblyUsageOccurrence) NAUO =
1446 Handle(StepRepr_NextAssemblyUsageOccurrence)::DownCast(start);
1447 shbinder = TransferEntity(NAUO, TP);
1451 // Shape Representation
1452 else if (start->IsKind(STANDARD_TYPE(StepShape_ShapeRepresentation))) {
1453 DeclareAndCast(StepShape_ShapeRepresentation,sr,start);
1454 Standard_Boolean isBound = Standard_False;
1455 shbinder = TransferEntity(sr,TP,isBound);
1458 // --------------------------------------------------------------
1459 // On se trouve ici aussi dans un contexte " d'assemblage geometrique "
1460 // - ShapeRepresentationRelationship + Transformation ou non
1461 // --------------------------------------------------------------
1463 else if (start->IsKind(STANDARD_TYPE(StepShape_ContextDependentShapeRepresentation))) {
1464 DeclareAndCast(StepShape_ContextDependentShapeRepresentation,CDSR,start);
1465 shbinder = TransferEntity(CDSR,TP);
1468 else if (start->IsKind (STANDARD_TYPE(StepRepr_ShapeRepresentationRelationship)) ) {
1469 // REPRESENTATION_RELATIONSHIP et la famille
1471 DeclareAndCast(StepRepr_ShapeRepresentationRelationship,und,start);
1472 shbinder = TransferEntity(und,TP);
1475 else if (start->IsKind (STANDARD_TYPE(StepGeom_GeometricRepresentationItem)) ) {
1476 // Here starts the entity to be treated : Shape Representation Subtype
1477 // It can be also other Root entities
1478 DeclareAndCast(StepGeom_GeometricRepresentationItem,git,start);
1479 shbinder = TransferEntity(git, TP, isManifold);
1481 else if (start->IsKind(STANDARD_TYPE(StepRepr_MappedItem))) {
1482 DeclareAndCast(StepRepr_MappedItem,mapit,start);
1483 shbinder= TransferEntity(mapit,TP);
1485 else if (start->IsKind(STANDARD_TYPE(StepShape_FaceSurface))) {
1486 DeclareAndCast(StepShape_FaceSurface,fs,start);
1487 shbinder = TransferEntity(fs,TP);
1490 // if (!shbinder.IsNull()) TP->Bind(start,binder);
1494 // ============================================================================
1495 // Method : STEPControl_ActorRead::PrepareUnits
1496 // Purpose : Set the unit conversion factors
1497 // ============================================================================
1499 void STEPControl_ActorRead::PrepareUnits(const Handle(StepRepr_Representation)& rep,
1500 const Handle(Transfer_TransientProcess)& TP)
1504 Standard_Integer stat1, stat2 = 0; // sera alimente par STEPControl_Unit
1510 // Get Units Applied to this model
1511 Handle(StepRepr_RepresentationContext) theRepCont = rep->ContextOfItems();
1512 if (theRepCont.IsNull()) {
1513 TP->AddWarning(rep,"Bad RepresentationContext, default unit taken");
1518 // --------------------------------------------------
1519 // Complex ENTITY : GeometricRepresentationContext &&
1520 // GlobalUnitAssignedContext
1521 // --------------------------------------------------
1523 STEPConstruct_UnitContext myUnit;
1524 Handle(StepRepr_GlobalUnitAssignedContext) theGUAC;
1525 Handle(StepRepr_GlobalUncertaintyAssignedContext) aTol;
1527 if (theRepCont->IsKind(STANDARD_TYPE(StepGeom_GeometricRepresentationContextAndGlobalUnitAssignedContext))) {
1528 DeclareAndCast(StepGeom_GeometricRepresentationContextAndGlobalUnitAssignedContext, theGRCAGAUC,theRepCont);
1529 theGUAC = theGRCAGAUC->GlobalUnitAssignedContext();
1532 // ----------------------------------------------------
1533 // Complex ENTITY : GeometricRepresentationContext &&
1534 // GlobalUnitAssignedContext &&
1535 // GlobalUncertaintyAssignedContext
1536 // ----------------------------------------------------
1538 if (theRepCont->IsKind(STANDARD_TYPE(StepGeom_GeomRepContextAndGlobUnitAssCtxAndGlobUncertaintyAssCtx))) {
1539 DeclareAndCast(StepGeom_GeomRepContextAndGlobUnitAssCtxAndGlobUncertaintyAssCtx,
1540 theGRCAGAUC,theRepCont);
1541 theGUAC = theGRCAGAUC->GlobalUnitAssignedContext();
1542 aTol = theGRCAGAUC->GlobalUncertaintyAssignedContext();
1546 // ----------------------------------------------------
1547 // Decoding and Setting the Values
1548 // ----------------------------------------------------
1550 if (!theGUAC.IsNull()) {
1551 stat1 = myUnit.ComputeFactors(theGUAC);
1552 Standard_Integer anglemode = Interface_Static::IVal("step.angleunit.mode");
1553 Standard_Real angleFactor = ( anglemode == 0 ? myUnit.PlaneAngleFactor() :
1554 anglemode == 1 ? 1. : M_PI/180. );
1555 UnitsMethods::InitializeFactors(myUnit.LengthFactor(),
1557 myUnit.SolidAngleFactor());
1558 if (stat1 != 0) TP->AddWarning (theRepCont,myUnit.StatusMessage(stat1));
1561 if (!aTol.IsNull()) {
1562 stat2 = myUnit.ComputeTolerance (aTol);
1563 if (stat2 != 0) TP->AddWarning (theRepCont,myUnit.StatusMessage(stat2));
1566 // myPrecision = Precision::Confusion();
1567 if (Interface_Static::IVal("read.precision.mode") == 1) //:i1 gka S4136 05.04.99
1568 myPrecision = Interface_Static::RVal("read.precision.val");
1569 else if (myUnit.HasUncertainty())
1570 myPrecision = myUnit.Uncertainty() * myUnit.LengthFactor();
1572 TP->AddWarning(theRepCont,"No Length Uncertainty, value of read.precision.val is taken");
1573 myPrecision = Interface_Static::RVal("read.precision.val");
1575 myMaxTol = Max ( myPrecision, Interface_Static::RVal("read.maxprecision.val") );
1576 // Assign uncertainty
1578 if (TP->TraceLevel() > 1)
1579 TP->Messenger() <<" Cc1ToTopoDS : Length Unit = "<<myUnit.LengthFactor()<<" Tolerance CASCADE = "<<myPrecision<<endl;
1583 //=======================================================================
1584 //function : ResetUnits
1586 //=======================================================================
1588 void STEPControl_ActorRead::ResetUnits ()
1590 UnitsMethods::InitializeFactors ( 1, 1, 1 );
1591 myPrecision = Interface_Static::RVal("read.precision.val");
1592 myMaxTol = Max ( myPrecision, Interface_Static::RVal("read.maxprecision.val") );
1595 //=======================================================================
1596 //function : ComputeTransformation
1598 //=======================================================================
1600 //:S4136 abv 20 Apr 99: as1ug.stp: compute transformation taking units into account
1601 Standard_Boolean STEPControl_ActorRead::ComputeTransformation (const Handle(StepGeom_Axis2Placement3d) &Origin,
1602 const Handle(StepGeom_Axis2Placement3d) &Target,
1603 const Handle(StepRepr_Representation) &OrigContext,
1604 const Handle(StepRepr_Representation) &TargContext,
1605 const Handle(Transfer_TransientProcess) &TP,
1608 Trsf = gp_Trsf(); // reinit
1609 if ( Origin.IsNull() || Target.IsNull() ) return Standard_False;
1611 //:abv 31.10.01: TEST_MCI_2.step: check that Ax1 and Ax2 belong to
1612 // corresponding reps and fix case of inversion error
1613 Handle(StepGeom_Axis2Placement3d) org = Origin;
1614 Handle(StepGeom_Axis2Placement3d) trg = Target;
1615 Standard_Boolean isOKOrigin = Standard_False, isSwapOrigin = Standard_False;
1616 Standard_Boolean isOKTarget = Standard_False, isSwapTarget = Standard_False;
1617 for (Standard_Integer i=1; i <= OrigContext->NbItems(); i++)
1619 if (OrigContext->ItemsValue(i) == org)
1620 isOKOrigin = Standard_True;
1621 else if (OrigContext->ItemsValue(i) == trg)
1622 isSwapTarget = Standard_True;
1624 for (Standard_Integer i=1; i <= TargContext->NbItems(); i++)
1626 if (TargContext->ItemsValue(i) == trg)
1627 isOKTarget = Standard_True;
1628 else if (TargContext->ItemsValue(i) == org)
1629 isSwapOrigin = Standard_True;
1631 if (! isOKOrigin || ! isOKTarget)
1633 if (isSwapOrigin && isSwapTarget)
1635 std::swap (org, trg);
1636 TP->AddWarning ( org, "Axis placements are swapped in SRRWT; corrected" );
1640 TP->AddWarning ( (isOKOrigin ? trg : org),
1641 "Axis placement used by SRRWT does not belong to corresponding representation" );
1645 // translate axis_placements taking units into account
1646 Handle(StepRepr_Representation) oldSRContext = mySRContext;
1647 if ( OrigContext != oldSRContext ) PrepareUnits(OrigContext,TP);
1648 Handle(Geom_Axis2Placement) theOrig = StepToGeom::MakeAxis2Placement (org);
1649 if ( TargContext != OrigContext ) PrepareUnits(TargContext,TP);
1650 Handle(Geom_Axis2Placement) theTarg = StepToGeom::MakeAxis2Placement (trg);
1651 if ( oldSRContext != TargContext ) PrepareUnits(oldSRContext,TP);
1653 gp_Ax3 ax3Orig(theOrig->Ax2());
1654 gp_Ax3 ax3Targ(theTarg->Ax2());
1656 // ne pas se tromper de sens !
1657 Trsf.SetTransformation(ax3Targ, ax3Orig);
1658 return Trsf.Form() != gp_Identity;
1661 //=======================================================================
1662 //function : ReadSRRWT
1664 //=======================================================================
1666 //:j2 abv 22 Oct 98: auxiliary function: reading transformation from SRRWT
1667 Standard_Boolean STEPControl_ActorRead::ComputeSRRWT (const Handle(StepRepr_RepresentationRelationship) &SRR,
1668 const Handle(Transfer_TransientProcess) &TP,
1671 Trsf = gp_Trsf(); // init
1673 DeclareAndCast(StepRepr_ShapeRepresentationRelationshipWithTransformation,srwt,SRR);
1674 if ( srwt.IsNull() ) return Standard_False;
1676 StepRepr_Transformation SelectTrans = srwt->TransformationOperator();
1678 // cartesian transformation
1679 Handle(StepGeom_CartesianTransformationOperator3d) CartOp =
1680 Handle(StepGeom_CartesianTransformationOperator3d)::DownCast(SelectTrans.Value());
1681 if ( ! CartOp.IsNull() ) {
1682 // reset units (by Rep2 - ?)
1683 Handle(StepRepr_Representation) oldSRContext = mySRContext;
1684 if ( SRR->Rep2() != oldSRContext ) PrepareUnits(SRR->Rep2(),TP);
1685 StepToGeom::MakeTransformation3d (CartOp, Trsf);
1686 if ( SRR->Rep2() != oldSRContext ) PrepareUnits(oldSRContext,TP);
1687 return Trsf.Form() != gp_Identity;
1690 // item-defined transformation
1691 Handle(StepRepr_ItemDefinedTransformation) ItemDef =
1692 SelectTrans.ItemDefinedTransformation();
1693 if ( ItemDef.IsNull() ) return Standard_False;
1695 Handle(StepGeom_Axis2Placement3d) Ax1 =
1696 Handle(StepGeom_Axis2Placement3d)::DownCast(ItemDef->TransformItem1());
1697 Handle(StepGeom_Axis2Placement3d) Ax2 =
1698 Handle(StepGeom_Axis2Placement3d)::DownCast(ItemDef->TransformItem2());
1699 if ( Ax1.IsNull() || Ax2.IsNull() ) return Standard_False;
1700 return ComputeTransformation ( Ax1, Ax2, SRR->Rep1(), SRR->Rep2(), TP, Trsf);
1703 //=======================================================================
1704 // Method : closeIDEASShell
1705 // Purpose : Attempts to close the passed Shell with the passed closing
1706 // Shells. Cuts redundant Faces from the closing Shells if any
1707 //=======================================================================
1709 TopoDS_Shell STEPControl_ActorRead::closeIDEASShell(const TopoDS_Shell& shell,
1710 const TopTools_ListOfShape& closingShells) {
1712 // Make Shell to provide closeness adjustments
1713 TopoDS_Shell result;
1714 BRep_Builder brepBuilder;
1715 brepBuilder.MakeShell(result);
1717 // Firstly, add all existing faces to the new Shell
1718 TopExp_Explorer currentFExp(shell, TopAbs_FACE);
1719 for ( ; currentFExp.More(); currentFExp.Next() ) {
1720 TopoDS_Face currentFace = TopoDS::Face( currentFExp.Current() );
1721 brepBuilder.Add(result, currentFace);
1724 TopTools_ListIteratorOfListOfShape itL(closingShells);
1725 TopTools_ListOfShape closingFaces;
1727 // Then add the closing faces
1728 for ( ; itL.More(); itL.Next() ) {
1729 TopoDS_Shape currentClosing = itL.Value();
1730 TopExp_Explorer faceExp(currentClosing, TopAbs_FACE);
1732 for ( ; faceExp.More(); faceExp.Next() ) {
1733 TopoDS_Face currentFace = TopoDS::Face( faceExp.Current() );
1734 brepBuilder.Add(result, currentFace);
1735 // Store each added closing face for subsequent processing
1736 closingFaces.Append(currentFace);
1740 // Check if the result is closed
1741 BRepCheck_Shell checker( TopoDS::Shell(result) );
1742 BRepCheck_Status checkStatus = checker.Closed();
1743 if (checkStatus == BRepCheck_NoError)
1744 result.Closed(Standard_True);
1746 return shell; // Cannot close this shell, skip it so...
1748 // Try to remove redundant Faces
1749 for ( itL.Initialize(closingFaces); itL.More(); itL.Next() ) {
1750 TopoDS_Face currentFace = TopoDS::Face( itL.Value() );
1751 // Remove face to see if Shell is still closed
1752 brepBuilder.Remove(result, currentFace);
1753 BRepCheck_Shell subChecker( TopoDS::Shell(result) );
1754 BRepCheck_Status subCheckStatus = subChecker.Closed();
1755 // If Shell becomes open, just put the deleted face back
1756 if (subCheckStatus != BRepCheck_NoError)
1757 brepBuilder.Add(result, currentFace);
1760 cout << "Redundant closing face detected: REMOVED from shell";
1769 //=======================================================================
1770 // Method : computeIDEASClosings
1771 // Purpose : For each Shell from the compound passed (comp), find all
1772 // non-manifold adjacent Shells and put the results into
1773 // the passed map (shellClosingMap)
1774 //=======================================================================
1776 void STEPControl_ActorRead::computeIDEASClosings(const TopoDS_Compound& comp,
1777 TopTools_IndexedDataMapOfShapeListOfShape& shellClosingsMap) {
1778 TopExp_Explorer shellExpA(comp, TopAbs_SHELL);
1780 for ( ; shellExpA.More(); shellExpA.Next() ) {
1781 TopoDS_Shape shellA = shellExpA.Current();
1782 TopExp_Explorer shellExpB(comp, TopAbs_SHELL);
1783 TopTools_ListOfShape closingShells;
1785 for ( ; shellExpB.More(); shellExpB.Next() ) {
1786 TopoDS_Shape shellB = shellExpB.Current();
1787 if ( shellA.IsSame(shellB) )
1789 // Check whether ShellB is non-manifold and adjacent to ShellA.
1790 // If so, ShellA has a chance to be closed with ShellB
1791 if ( myNMTool.IsSuspectedAsClosing(shellA, shellB) )
1792 closingShells.Append(shellB);
1795 if ( !closingShells.IsEmpty() )
1796 shellClosingsMap.Add(shellA, closingShells);