OCCT

puts "============"
puts "BUC60912"
puts "OCC83"
puts "============"
puts ""
###############################
## Section of simple BSpline surfaces is performed too slow
###############################

puts "2 case: perform section with planar BSpline surface"
restore [locate_data_file BUC60912_sec_slow.brep] c 
explode c
checkshape c_1
checkshape c_2

renamevar c_1 sh
renamevar c_2 pr
plane f 0 0 0 1 0 0
mkface f f -11 11 -11 11

puts "Info: perform section with planar BSpline surface"
dchrono h2 restart
bsection result sh pr
dchrono h2 stop counter bsection

checkprops result -l 42.879 
checkshape result 
checksection result
checkview -display result -2d -path ${imagedir}/${test_image}.png