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0028637: [regression] Extrema curve - curve can not find correct solution between edge based on the line and BSpline edge

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Adding condition for preventing decreasing Lipschitz constant if derivative are too small
Test case is created
This commit is contained in:
ifv 2017-05-18 16:10:45 +03:00 committed by bugmaster
parent 53d696bf51
commit b493028765
2 changed files with 18 additions and 0 deletions
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6
src/Extrema/Extrema_GenExtCC.gxx
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@ -220,6 +220,12 @@ void Extrema_GenExtCC::Perform()
// Change constant value according to the concrete curve types.
Standard_Boolean isConstLockedFlag = Standard_False;
//To prevent LipConst to became too small
const Standard_Real aCR = 0.001;
if (aMaxDer1 / aMaxDer < aCR || aMaxDer2 / aMaxDer < aCR)
{
isConstLockedFlag = Standard_True;
}
if (C1.GetType() == GeomAbs_Line)
{
aMaxDer = 1.0 / C2.Resolution(1.0);

12
tests/bugs/modalg_6/bug28637 Normal file
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@ -0,0 +1,12 @@
puts "========"
puts "OCC28637"
puts "========"
puts ""
####################################################################################
## [regression] Extrema curve - curve can not find correct solution between edge based on the line and BSpline edge
####################################################################################
restore [locate_data_file bug28637_shapes.brep] b
explode b
distmini d b_1 b_2
checkprops d -l 4.46857e-005 -deps 1.e-2