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2c25cc04e0
Static function stepstrcmp() in StepData_StepReaderData.cxx is replaced by plain strcmp() to have the full strings compared (stepstrcmp() returned true if one of strings was longer than the other but common part was equal). Protection is added to avoid exception for cases when representation entities are NULL
256 lines
10 KiB
C++
256 lines
10 KiB
C++
// Copyright (c) 1999-2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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//:k8 abv 06.01.99: TR10: writing unique names for NAUOs
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// :j4 16.03.99 gka S4134
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// abv 18.11.99 renamed from StepPDR_MakeItem
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#include <Interface_EntityIterator.hxx>
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#include <Interface_Graph.hxx>
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#include <Interface_InterfaceModel.hxx>
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#include <Standard_Transient.hxx>
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#include <StepBasic_ApplicationContext.hxx>
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#include <StepBasic_DesignContext.hxx>
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#include <StepBasic_HArray1OfProductContext.hxx>
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#include <StepBasic_MechanicalContext.hxx>
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#include <StepBasic_Product.hxx>
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#include <StepBasic_ProductDefinition.hxx>
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#include <StepBasic_ProductDefinitionFormationWithSpecifiedSource.hxx>
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#include <STEPConstruct_Assembly.hxx>
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#include <StepGeom_Axis2Placement3d.hxx>
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#include <StepRepr_CharacterizedDefinition.hxx>
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#include <StepRepr_HArray1OfRepresentationItem.hxx>
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#include <StepRepr_ItemDefinedTransformation.hxx>
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#include <StepRepr_NextAssemblyUsageOccurrence.hxx>
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#include <StepRepr_ProductDefinitionShape.hxx>
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#include <StepRepr_RepresentationContext.hxx>
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#include <StepRepr_ShapeRepresentationRelationshipWithTransformation.hxx>
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#include <StepRepr_Transformation.hxx>
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#include <StepShape_ContextDependentShapeRepresentation.hxx>
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#include <StepShape_ShapeDefinitionRepresentation.hxx>
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#include <StepShape_ShapeRepresentation.hxx>
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#include <TCollection_HAsciiString.hxx>
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// ProductDefinition (pour Relationship)
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// ContextDependentShapeRepresentation qui contient la Relationship
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// Relationship
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//=======================================================================
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//function : STEPConstruct_Assembly
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//purpose :
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//=======================================================================
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STEPConstruct_Assembly::STEPConstruct_Assembly ()
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{
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}
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//=======================================================================
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//function : Init
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//purpose :
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//=======================================================================
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void STEPConstruct_Assembly::Init (const Handle(StepShape_ShapeDefinitionRepresentation)& aSDR,
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const Handle(StepShape_ShapeDefinitionRepresentation)& SDR0,
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const Handle(StepGeom_Axis2Placement3d)& Ax0,
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const Handle(StepGeom_Axis2Placement3d)& AxLoc)
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{
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thesdr = aSDR;
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thesdr0 = SDR0;
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thesr = Handle(StepShape_ShapeRepresentation)::DownCast(aSDR->UsedRepresentation());
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thesr0 = Handle(StepShape_ShapeRepresentation)::DownCast(SDR0->UsedRepresentation());
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theval.Nullify();
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theax0 = Ax0;
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theloc = AxLoc;
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}
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//=======================================================================
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//function : MakeMappedItem
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//purpose :
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//=======================================================================
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//void STEPConstruct_Assembly::MakeMappedItem ()
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//{
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// not yet implemented
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//}
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//=======================================================================
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//function : MakeRelationship
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//purpose :
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//=======================================================================
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void STEPConstruct_Assembly::MakeRelationship ()
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{
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// get PDs for assembly (sdr0) and component (sdr)
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Handle(StepBasic_ProductDefinition) PDED =
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thesdr->Definition().PropertyDefinition()->Definition().ProductDefinition();
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Handle(StepBasic_ProductDefinition) PDING =
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thesdr0->Definition().PropertyDefinition()->Definition().ProductDefinition();
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// create NAUO
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//:k8 abv 06 Jan 99: TR10: writing unique names for NAUOs !!!!!
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Handle(StepRepr_NextAssemblyUsageOccurrence) NAUO =
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new StepRepr_NextAssemblyUsageOccurrence;
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static Standard_Integer id = 0;
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Handle(TCollection_HAsciiString) ocid = new TCollection_HAsciiString(++id);
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Handle(TCollection_HAsciiString) ocname = new TCollection_HAsciiString("");
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Handle(TCollection_HAsciiString) ocdesc = new TCollection_HAsciiString("");
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Handle(TCollection_HAsciiString) refdes; // reste nulle
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NAUO->Init (ocid,ocname,Standard_True,ocdesc,PDING,PDED,Standard_False,refdes);
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// create PDS for link CDSR->PDS->NAUO
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Handle(StepRepr_ProductDefinitionShape) PDS =
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new StepRepr_ProductDefinitionShape;
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Handle(TCollection_HAsciiString) pdsname = new TCollection_HAsciiString("Placement");
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Handle(TCollection_HAsciiString) pdsdesc = new TCollection_HAsciiString("Placement of an item");
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StepRepr_CharacterizedDefinition CD;
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CD.SetValue(NAUO);
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PDS->Init (pdsname,Standard_True,pdsdesc,CD);
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// create transformation
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Handle(StepRepr_ItemDefinedTransformation) ItemDef =
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new StepRepr_ItemDefinedTransformation;
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Handle(TCollection_HAsciiString) idname = new TCollection_HAsciiString("");
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Handle(TCollection_HAsciiString) idescr = new TCollection_HAsciiString("");
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ItemDef->Init (idname,idescr,theax0,theloc);
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// create SRRWT
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Handle(StepRepr_ShapeRepresentationRelationshipWithTransformation) SRRWT =
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new StepRepr_ShapeRepresentationRelationshipWithTransformation;
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Handle(TCollection_HAsciiString) stname = new TCollection_HAsciiString("");
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Handle(TCollection_HAsciiString) stescr = new TCollection_HAsciiString("");
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StepRepr_Transformation StepTrans;
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StepTrans.SetValue (ItemDef);
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SRRWT->Init (stname,stescr,thesr,thesr0,StepTrans);
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// create CDSR (final result, root)
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Handle(StepShape_ContextDependentShapeRepresentation) CDSR =
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new StepShape_ContextDependentShapeRepresentation;
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CDSR->Init (SRRWT,PDS);
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theval = CDSR;
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}
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//=======================================================================
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//function : ItemValue
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//purpose :
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//=======================================================================
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Handle(Standard_Transient) STEPConstruct_Assembly::ItemValue () const
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{
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if (theval.IsNull()) return Handle(Standard_Transient) (thesr);
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return theval;
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}
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//=======================================================================
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//function : ItemLocation
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//purpose :
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//=======================================================================
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Handle(StepGeom_Axis2Placement3d) STEPConstruct_Assembly::ItemLocation () const
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{
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return theloc;
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}
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//=======================================================================
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//function : GetNAUO
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//purpose :
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//=======================================================================
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Handle(StepRepr_NextAssemblyUsageOccurrence) STEPConstruct_Assembly::GetNAUO () const
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{
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Handle(StepShape_ContextDependentShapeRepresentation) CDSR =
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Handle(StepShape_ContextDependentShapeRepresentation)::DownCast ( ItemValue() );
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if ( ! CDSR.IsNull() ) {
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Handle(StepBasic_ProductDefinitionRelationship) PDR =
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CDSR->RepresentedProductRelation()->Definition().ProductDefinitionRelationship();
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return Handle(StepRepr_NextAssemblyUsageOccurrence)::DownCast ( PDR );
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}
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return 0;
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}
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//=======================================================================
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//function : CheckSRRReversesNAUO
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//purpose :
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//=======================================================================
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Standard_Boolean STEPConstruct_Assembly::CheckSRRReversesNAUO(const Interface_Graph& theGraph,
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const Handle(StepShape_ContextDependentShapeRepresentation) &CDSR)
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{
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Handle(StepRepr_NextAssemblyUsageOccurrence) nauo =
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Handle(StepRepr_NextAssemblyUsageOccurrence)::DownCast
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( CDSR->RepresentedProductRelation()->Definition().ProductDefinitionRelationship() );
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if ( nauo.IsNull() ) {
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#ifdef OCCT_DEBUG
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cout << "Warning: No NAUO found in CDSR !" << endl;
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#endif
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return Standard_False;
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}
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Handle(StepBasic_ProductDefinition) pd1, pd2;
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Handle(StepRepr_Representation) rep1 = CDSR->RepresentationRelation()->Rep1();
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Handle(StepRepr_Representation) rep2 = CDSR->RepresentationRelation()->Rep2();
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if( rep1.IsNull() || rep2.IsNull())
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return Standard_False;
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// find SDRs corresponding to Rep1 and Rep2 and remember their PDs
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Handle(Standard_Type) tSDR = STANDARD_TYPE(StepShape_ShapeDefinitionRepresentation);
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Interface_EntityIterator anIter = theGraph.Sharings(rep1);
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for (; anIter.More() && pd1.IsNull(); anIter.Next()) {
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Handle(Standard_Transient) enti = anIter.Value();
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if (enti->DynamicType() == tSDR) {
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Handle(StepShape_ShapeDefinitionRepresentation) SDR =
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Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(enti);
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if ( SDR->UsedRepresentation() == rep1 )
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pd1 = SDR->Definition().PropertyDefinition()->Definition().ProductDefinition();
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}
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}
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anIter = theGraph.Sharings(rep2);
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for (; anIter.More() && pd2.IsNull(); anIter.Next()) {
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Handle(Standard_Transient) enti = anIter.Value();
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if (enti->DynamicType() == tSDR) {
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Handle(StepShape_ShapeDefinitionRepresentation) SDR =
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Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(enti);
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if ( SDR->UsedRepresentation() == rep2 )
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pd2 = SDR->Definition().PropertyDefinition()->Definition().ProductDefinition();
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}
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}
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// checks..
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if ( pd1 == nauo->RelatedProductDefinition() && // OK
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pd2 == nauo->RelatingProductDefinition() ) return Standard_False;
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if ( pd2 == nauo->RelatedProductDefinition() && // Reversed
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pd1 == nauo->RelatingProductDefinition() ) {
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return Standard_True;
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}
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#ifdef OCCT_DEBUG
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cout << "Warning: SRR and NAUO are incompatible" << endl;
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// cout << "NAUO = " << Model->StringLabel(nauo)->ToCString() <<
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// ",\tCDSR = " << Model->StringLabel(CDSR)->ToCString() << endl;
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// cout << "Rep1 = " << Model->StringLabel(rep1)->ToCString() <<
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// ",\tRep2 = " << Model->StringLabel(rep2)->ToCString() << endl;
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// cout << "PD1 = " << Model->StringLabel(pd1)->ToCString() <<
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// ",\tPD2 = " << Model->StringLabel(pd2)->ToCString() << endl;
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// cout << "Rel1 = " << Model->StringLabel(nauo->RelatingProductDefinition())->ToCString() <<
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// ",\tRel2 = " << Model->StringLabel(nauo->RelatedProductDefinition())->ToCString() << endl;
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#endif
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if ( pd2 == nauo->RelatedProductDefinition() || //:k3 abv 25 Nov 98: rp1sd.stp - bad assemblies
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pd1 == nauo->RelatingProductDefinition() ) {
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return Standard_True;
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}
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return Standard_False;
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}
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