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Fix for bos #16261: PipeWithDifferentSections. Use ThruSections algorithm in certain conditions.

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jfa 2020-08-04 14:24:34 +03:00
parent 23d3a9b07a
commit fde5bbfe1c
1 changed files with 40 additions and 0 deletions
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40
src/GEOMImpl/GEOMImpl_PipeDriver.cxx
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@ -52,6 +52,7 @@
#include <GeomFill_CorrectedFrenet.hxx>
#include <BRepOffsetAPI_MakePipe.hxx>
#include <BRepOffsetAPI_MakePipeShell.hxx>
#include <BRepOffsetAPI_ThruSections.hxx>
#include <TopAbs.hxx>
#include <TopExp.hxx>
@ -1280,6 +1281,44 @@ TopoDS_Shape GEOMImpl_PipeDriver::CreatePipeWithDifferentSections
}
}
else {
// old implementation without splitting
// Generally, we should better use BRepOffsetAPI_ThruSections algorithm if
// 1) the path is a polyline, and
// 2) all break points of the path have correspondent sections
bool doThruSections = false;
if (!theWithContact && !theWithCorrect && theGroups == NULL &&
nbBases == Edges.Length() + 1) {
doThruSections = true;
// check if all edges are lines
Standard_Real aFP, aLP;
for (int ie = 1; ie <= Edges.Length() && doThruSections; ie++) {
TopoDS_Edge anE = TopoDS::Edge(Edges.Value(ie));
Handle(Geom_Curve) aC = BRep_Tool::Curve(anE, aFP, aLP);
if (!aC.IsNull()) {
while(aC->IsKind(STANDARD_TYPE(Geom_TrimmedCurve))) {
Handle(Geom_TrimmedCurve) aTc = Handle(Geom_TrimmedCurve)::DownCast(aC);
aC = aTc->BasisCurve();
}
if (!aC->IsKind(STANDARD_TYPE(Geom_Line)))
doThruSections = false;
}
}
}
if (doThruSections) {
BRepOffsetAPI_ThruSections aBuilder (NeedCreateSolid, Standard_True, Precision::Confusion()*10.0);
aBuilder.CheckCompatibility(Standard_False);
for (int ibase = 1; ibase <= nbBases; ibase++) {
TopoDS_Shape aBase = aSeqBases.Value(ibase);
aBuilder.AddWire(TopoDS::Wire(aBase));
}
aBuilder.Build();
aShape = aBuilder.Shape();
}
else {
// old implementation without splitting
BRepOffsetAPI_MakePipeShell aBuilder(aWirePath);
GeomFill_Trihedron theBestMode = EvaluateBestSweepMode(aWirePath);
@ -1358,6 +1397,7 @@ TopoDS_Shape GEOMImpl_PipeDriver::CreatePipeWithDifferentSections
for (j = 1; j <=usedBases.Length(); j++)
aBuilder.Delete(usedBases.Value(j));
}
}
}
return aShape;