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Fixes for degenerate polylines

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Thomas Krijnen
2018-09-17 14:42:22 +02:00
parent 8fe2d7e633
commit 36739b4c78
1 changed files with 5 additions and 1 deletions
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src/ifcgeom/IfcGeomWires.cpp
+5 -1
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@@ -492,7 +492,7 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcPolyline* l, TopoDS_Wire& resu
} }
const double eps = getValue(GV_PRECISION) * 10; const double eps = getValue(GV_PRECISION) * 10;
const bool closed_by_proximity = polygon.Length() >= 2 && polygon.First().Distance(polygon.Last()) < eps; const bool closed_by_proximity = polygon.Length() >= 3 && polygon.First().Distance(polygon.Last()) < eps;
if (closed_by_proximity) { if (closed_by_proximity) {
// tfk: note 1-based // tfk: note 1-based
polygon.Remove(polygon.Length()); polygon.Remove(polygon.Length());
@@ -500,6 +500,10 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcPolyline* l, TopoDS_Wire& resu
// Remove points that are too close to one another // Remove points that are too close to one another
remove_duplicate_points_from_loop(polygon, closed_by_proximity, eps); remove_duplicate_points_from_loop(polygon, closed_by_proximity, eps);
if (polygon.Length() < 2) {
return false;
}
BRepBuilderAPI_MakePolygon w; BRepBuilderAPI_MakePolygon w;
for (int i = 1; i <= polygon.Length(); ++i) { for (int i = 1; i <= polygon.Length(); ++i) {