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0032859: Modeling Algorithms - BRepLib_FindSurface not return an expect plane

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BRepLib/BRepLib_FindSurface.cxx = removing very small values from coordinate of normal
bug32859 - test case added
This commit is contained in:
ifv 2022-09-08 14:08:00 +03:00 committed by smoskvin
parent 2949b238c1
commit 526c506cb0
2 changed files with 29 additions and 1 deletions
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9
src/BRepLib/BRepLib_FindSurface.cxx
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@ -506,7 +506,14 @@ void BRepLib_FindSurface::Init(const TopoDS_Shape& S,
if (!isSolved) if (!isSolved)
return; return;
//Removing very small values
Standard_Real aMaxV = Max(Abs(aVec(1)), Max(Abs(aVec(2)), Abs(aVec(3))));
Standard_Real eps = Epsilon(aMaxV);
for (i = 1; i <= 3; ++i)
{
if (Abs(aVec(i)) <= eps)
aVec(i) = 0.;
}
gp_Vec aN (aVec (1), aVec (2), aVec (3)); gp_Vec aN (aVec (1), aVec (2), aVec (3));
Handle(Geom_Plane) aPlane = new Geom_Plane (aBaryCenter, aN); Handle(Geom_Plane) aPlane = new Geom_Plane (aBaryCenter, aN);
myTolReached = Controle (aPoints, aPlane); myTolReached = Controle (aPoints, aPlane);

21
tests/bugs/modalg_8/bug32859 Normal file
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@ -0,0 +1,21 @@
puts "============================================================================================="
puts "0032859: Modeling Algorithms - BRepLib_FindSurface not return an expect plane"
puts "============================================================================================="
puts ""
vertex v1 -500 25 -6
vertex v2 -450 -25 -6
vertex v3 450 -25 -6
vertex v4 500 25 -6
edge e1 v1 v2
edge e2 v2 v3
edge e3 v3 v4
edge e4 v4 v1
wire w e1 e2 e3 e4
mkplane p w
mksurface s p
set log [eval dump s]
if {[regexp "Axis :0, 0, 1" ${log}] != 1} {
puts "Error: BRepLib_FindSurface algorithm does not return valid result"
}