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0027570: Unacceptable performance during reading large STEP files

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Improvement of translating assemblies from STEP.
This commit is contained in:
ika
2016-06-15 14:29:32 +03:00
committed by apn
parent 1beb58d745
commit 9bba178dce
6 changed files with 53 additions and 14 deletions
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29
src/STEPConstruct/STEPConstruct_Assembly.cxx
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@@ -15,6 +15,8 @@
// :j4 16.03.99 gka S4134
// abv 18.11.99 renamed from StepPDR_MakeItem
#include <Interface_EntityIterator.hxx>
#include <Interface_Graph.hxx>
#include <Interface_InterfaceModel.hxx>
#include <Standard_Transient.hxx>
#include <StepBasic_ApplicationContext.hxx>
@@ -179,7 +181,7 @@ Handle(StepRepr_NextAssemblyUsageOccurrence) STEPConstruct_Assembly::GetNAUO ()
//purpose :
//=======================================================================
Standard_Boolean STEPConstruct_Assembly::CheckSRRReversesNAUO(const Handle(Interface_InterfaceModel) &Model,
Standard_Boolean STEPConstruct_Assembly::CheckSRRReversesNAUO(const Interface_Graph& theGraph,
const Handle(StepShape_ContextDependentShapeRepresentation) &CDSR)
{
Handle(StepRepr_NextAssemblyUsageOccurrence) nauo =
@@ -191,26 +193,35 @@ Standard_Boolean STEPConstruct_Assembly::CheckSRRReversesNAUO(const Handle(Inter
#endif
return Standard_False;
}
Handle(StepBasic_ProductDefinition) pd1, pd2;
Handle(StepRepr_Representation) rep1 = CDSR->RepresentationRelation()->Rep1();
Handle(StepRepr_Representation) rep2 = CDSR->RepresentationRelation()->Rep2();
// find SDRs corresponding to Rep1 and Rep2 and remember their PDs
Handle(Standard_Type) tSDR = STANDARD_TYPE(StepShape_ShapeDefinitionRepresentation);
Standard_Integer nb = Model->NbEntities();
for (Standard_Integer i = 1; i <= nb; i ++) {
Handle(Standard_Transient) enti = Model->Value(i);
Interface_EntityIterator anIter = theGraph.Sharings(rep1);
for (; anIter.More() && pd1.IsNull(); anIter.Next()) {
Handle(Standard_Transient) enti = anIter.Value();
if (enti->DynamicType() == tSDR) {
Handle(StepShape_ShapeDefinitionRepresentation) SDR =
Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(enti);
Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(enti);
if ( SDR->UsedRepresentation() == rep1 )
pd1 = SDR->Definition().PropertyDefinition()->Definition().ProductDefinition();
if ( SDR->UsedRepresentation() == rep2 )
pd2 = SDR->Definition().PropertyDefinition()->Definition().ProductDefinition();
pd1 = SDR->Definition().PropertyDefinition()->Definition().ProductDefinition();
}
}
anIter = theGraph.Sharings(rep2);
for (; anIter.More() && pd2.IsNull(); anIter.Next()) {
Handle(Standard_Transient) enti = anIter.Value();
if (enti->DynamicType() == tSDR) {
Handle(StepShape_ShapeDefinitionRepresentation) SDR =
Handle(StepShape_ShapeDefinitionRepresentation)::DownCast(enti);
if ( SDR->UsedRepresentation() == rep2 )
pd2 = SDR->Definition().PropertyDefinition()->Definition().ProductDefinition();
}
}
// checks..
if ( pd1 == nauo->RelatedProductDefinition() && // OK

3
src/STEPConstruct/STEPConstruct_Assembly.hxx
View File

@@ -29,6 +29,7 @@ class StepGeom_Axis2Placement3d;
class StepRepr_NextAssemblyUsageOccurrence;
class Interface_InterfaceModel;
class StepShape_ContextDependentShapeRepresentation;
class Interface_Graph;
//! This operator creates and checks an item of an assembly, from its
@@ -70,7 +71,7 @@ public:
//! Checks whether SRR's definition of assembly and component contradicts
//! with NAUO definition or not, according to model schema (AP214 or AP203)
Standard_EXPORT static Standard_Boolean CheckSRRReversesNAUO (const Handle(Interface_InterfaceModel)& Model, const Handle(StepShape_ContextDependentShapeRepresentation)& CDSR);
Standard_EXPORT static Standard_Boolean CheckSRRReversesNAUO (const Interface_Graph& theGraph, const Handle(StepShape_ContextDependentShapeRepresentation)& CDSR);