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0025816: IGES export - edges within compound are lost if BREP mode (IGES 5.1) is used

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Enable writing wires, edges, and vertices inside compound in IGES in BREP mode.
Create IGES group for compound even if it contains single shape.
This commit is contained in:
abv
2015-02-10 22:50:51 +03:00
committed by bugmaster
parent 859a47c3d1
commit 19589673b3
3 changed files with 40 additions and 12 deletions
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30
src/BRepToIGESBRep/BRepToIGESBRep_Entity.cxx
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@@ -869,6 +869,11 @@ Handle(IGESData_IGESEntity) BRepToIGESBRep_Entity::TransferCompound (const TopoD
for (Ex.Init(start, TopAbs_WIRE, TopAbs_FACE); Ex.More(); Ex.Next()) {
TopoDS_Wire S = TopoDS::Wire(Ex.Current());
AddWarning(S," a Wire alone is not an IGESBRep entity : no Transfer");
BRepToIGES_BRWire BW(*this);
BW.SetModel(GetModel());
IShape = BW.TransferWire(S);
if (!IShape.IsNull()) Seq->Append(IShape);
}
@@ -876,6 +881,11 @@ Handle(IGESData_IGESEntity) BRepToIGESBRep_Entity::TransferCompound (const TopoD
for (Ex.Init(start, TopAbs_EDGE, TopAbs_WIRE); Ex.More(); Ex.Next()) {
TopoDS_Edge S = TopoDS::Edge(Ex.Current());
AddWarning(S," a Edge alone is not an IGESBRep entity : no Transfer");
BRepToIGES_BRWire BW(*this);
BW.SetModel(GetModel());
IShape = BW.TransferEdge(S, Standard_False);
if (!IShape.IsNull()) Seq->Append(IShape);
}
@@ -883,27 +893,27 @@ Handle(IGESData_IGESEntity) BRepToIGESBRep_Entity::TransferCompound (const TopoD
for (Ex.Init(start, TopAbs_VERTEX, TopAbs_EDGE); Ex.More(); Ex.Next()) {
TopoDS_Vertex S = TopoDS::Vertex(Ex.Current());
AddWarning(S," a Vertex alone is not an IGESBRep entity : no Transfer");
BRepToIGES_BRWire BW(*this);
BW.SetModel(GetModel());
IShape = BW.TransferVertex(S);
if (!IShape.IsNull()) Seq->Append(IShape);
}
// construct the group
Standard_Integer nbshapes = Seq->Length();
Handle(IGESData_HArray1OfIGESEntity) Tab;
if (nbshapes > 1) {
Tab = new IGESData_HArray1OfIGESEntity(1,nbshapes);
if (nbshapes > 0) {
Handle(IGESData_HArray1OfIGESEntity) Tab =
new IGESData_HArray1OfIGESEntity(1,nbshapes);
for (Standard_Integer itab = 1; itab <= nbshapes; itab++) {
Handle(IGESData_IGESEntity) item = GetCasted(IGESData_IGESEntity, Seq->Value(itab));
Tab->SetValue(itab,item);
}
}
if (nbshapes == 1) {
res = IShape;
}
else if(nbshapes > 1) {
Handle(IGESBasic_Group) IGroup = new IGESBasic_Group;
IGroup->Init(Tab);
res = IGroup;
}
}
SetShapeResult ( start, res );