puts "========"
puts "OCC776"
puts "SAM1654"
puts "(case 2)"
puts "========"
puts ""
##########################################
## Impossible to cut one shape from another in the attachment
##########################################

restore [locate_data_file OCC776.brep] a 
explode a
checkshape a_1
checkshape a_2

bcut result a_2 a_1

checkprops result -s 40403.2 
checkshape result
set 2dviewer 0