puts "============"
puts "OCC16781"
puts "============"
puts ""
#######################################################################
# Wrong result of Cut operation.
#######################################################################

restore [locate_data_file OCC16781-wing_solid.brep] s1
restore [locate_data_file OCC16781-extr.brep] s2

bop s1 s2
bopcut result

checkprops result -s 3.92094e+07 
checkshape result
checknbshapes result -vertex 14 -edge 21 -wire 9 -face 9 -shell 1 -solid 1 -compsolid 0 -compound 1 -shape 56
checkview -display result -2d -path ${imagedir}/${test_image}.png