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0029356: Modeling Algorithms - GCPnts_TangentialDeflection hangs on specific curve

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While UV Iso parameters are obtained in StdPrs_Isolines, UV limits should be applied only if face bounds has infinite values.
In the issue case, the UV values are greater than UVLimits and not infinite. This fix makes possible to have correct Iso lines in presentation without modification of UV limits beforehead.
This commit is contained in:
nds
2018-01-29 11:19:36 +03:00
committed by bugmaster
parent 06084bb8ec
commit d4efee2bfa
5 changed files with 73 additions and 4 deletions
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12
src/StdPrs/StdPrs_Isolines.cxx
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@@ -589,10 +589,14 @@ void StdPrs_Isolines::UVIsoParameters (const TopoDS_Face& theFace,
BRepTools::UVBounds (theFace, aUmin, aUmax, aVmin, aVmax);
aUmin = Max (aUmin, -theUVLimit);
aUmax = Min (aUmax, theUVLimit);
aVmin = Max (aVmin, -theUVLimit);
aVmax = Min (aVmax, theUVLimit);
if (Precision::IsInfinite (aUmin))
aUmin = -theUVLimit;
if (Precision::IsInfinite (aUmax))
aUmax = theUVLimit;
if (Precision::IsInfinite (aVmin))
aVmin = -theUVLimit;
if (Precision::IsInfinite (aVmax))
aVmax = theUVLimit;
TopLoc_Location aLocation;
const Handle(Geom_Surface)& aSurface = BRep_Tool::Surface (theFace, aLocation);