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#823 fallback to BRepBuilderAPI_Transformed in case of errors

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Thomas Krijnen
2020-08-25 14:43:31 +02:00
parent 5c20e7b62a
commit 34c51fa9be
1 changed files with 15 additions and 3 deletions
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src/ifcgeom/IfcGeomShapes.cpp
+15 -3
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@@ -1191,13 +1191,25 @@ namespace {
result = BRepPrimAPI_MakeRevol(section, circ->Axis(), depth).Shape();
}
void process_sweep_as_pipe(const TopoDS_Wire& wire, const TopoDS_Wire& section, TopoDS_Shape& result) {
void process_sweep_as_pipe(const TopoDS_Wire& wire, const TopoDS_Wire& section, TopoDS_Shape& result, bool force_transformed=false) {
// This tolerance is fairly high due to the linear edge substitution for small (or large radii) conical curves.
const bool is_continuous = wire_is_c1_continuous(wire, 1.e-2);
static int i = 0;
std::string fn = "pipe-wire-" + boost::lexical_cast<std::string>(i++) + ".brep";
BRepTools::Write(wire, fn.c_str());
BRepOffsetAPI_MakePipeShell builder(wire);
builder.Add(section);
builder.SetTransitionMode(is_continuous ? BRepBuilderAPI_Transformed : BRepBuilderAPI_RightCorner);
builder.Build();
builder.SetTransitionMode(is_continuous || force_transformed ? BRepBuilderAPI_Transformed : BRepBuilderAPI_RightCorner);
try {
builder.Build();
} catch (Standard_Failure& e) {
// We fallback to BRepBuilderAPI_Transformed, but likely with visual artefacts.
if (!(is_continuous || force_transformed)) {
return process_sweep_as_pipe(wire, section, result, true);
} else {
throw e;
}
}
builder.MakeSolid();
result = builder.Shape();
}