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0031199: BRepMesh fails on thin faces

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Use real tolerance of a face to define threshold for tolerance of discrete model instead of empirical values based on discrete model itself
This commit is contained in:
oan
2019-12-04 12:26:10 +03:00
committed by azv
parent fd47711d68
commit 90dfe2ccb0
1 changed files with 8 additions and 2 deletions
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10
src/BRepMesh/BRepMesh_DefaultRangeSplitter.cxx
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@@ -18,6 +18,7 @@
#include <GCPnts_AbscissaPoint.hxx> #include <GCPnts_AbscissaPoint.hxx>
#include <GeomAdaptor_Curve.hxx> #include <GeomAdaptor_Curve.hxx>
#include <GeomAbs_IsoType.hxx> #include <GeomAbs_IsoType.hxx>
#include <BRep_Tool.hxx>
//======================================================================= //=======================================================================
// Function: Reset // Function: Reset
@@ -125,9 +126,14 @@ void BRepMesh_DefaultRangeSplitter::computeTolerance(
const Standard_Real aDiffU = myRangeU.second - myRangeU.first; const Standard_Real aDiffU = myRangeU.second - myRangeU.first;
const Standard_Real aDiffV = myRangeV.second - myRangeV.first; const Standard_Real aDiffV = myRangeV.second - myRangeV.first;
const Standard_Real aTolerance = BRep_Tool::Tolerance (myDFace->GetFace());
const Adaptor3d_Surface& aSurface = GetSurface()->Surface();
const Standard_Real aResU = aSurface.UResolution (aTolerance);
const Standard_Real aResV = aSurface.VResolution (aTolerance);
const Standard_Real aDeflectionUV = 1.e-05; const Standard_Real aDeflectionUV = 1.e-05;
myTolerance.first = Max(Min(aDeflectionUV, 0.1 * aDiffU), 1e-7 * aDiffU); myTolerance.first = Max(Min(aDeflectionUV, aResU), 1e-7 * aDiffU);
myTolerance.second = Max(Min(aDeflectionUV, 0.1 * aDiffV), 1e-7 * aDiffV); myTolerance.second = Max(Min(aDeflectionUV, aResV), 1e-7 * aDiffV);
} }
//======================================================================= //=======================================================================