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0027261: Incorrect bounding boxes computed for the b-spline faces

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Protection from the out of bounds parameters is added.
Test cases are added.
This commit is contained in:
aml 2016-03-15 14:57:15 +03:00 committed by abv
parent 4b3541c68b
commit 447c7e54f0
3 changed files with 35 additions and 0 deletions
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5
src/BndLib/BndLib_AddSurface.cxx
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@ -195,6 +195,11 @@ void ComputePolesIndexes(const TColStd_Array1OfReal &theFlatKnots,
Standard_Integer &theOutMinIdx,
Standard_Integer &theOutMaxIdx)
{
// Set initial values for the result indexes to handle situation when requested parameter space
// is slightly greater than B-spline parameter space.
theOutMinIdx = theFlatKnots.Lower();
theOutMaxIdx = theFlatKnots.Upper();
// Compute first and last used flat knots.
for(Standard_Integer aKnotIdx = theFlatKnots.Lower();
aKnotIdx < theFlatKnots.Upper();

15
tests/bugs/moddata_3/bug27261_1 Normal file
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@ -0,0 +1,15 @@
puts "================"
puts "0027261"
puts "================"
puts ""
###############################################################
# Incorrect bounding box is created for the face
##############################################################
restore [locate_data_file bug27261_f1.brep] f1
bounding f1
# Visual check.
smallview
fit
checkview -screenshot -2d -path ${imagedir}/${test_image}.png

15
tests/bugs/moddata_3/bug27261_2 Normal file
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@ -0,0 +1,15 @@
puts "================"
puts "0027261"
puts "================"
puts ""
###############################################################
# Incorrect bounding box is created for the face
##############################################################
restore [locate_data_file bug27261_f2.brep] f2
bounding f2
# Visual check.
smallview
fit
checkview -screenshot -2d -path ${imagedir}/${test_image}.png