puts "========="
puts " OCC497 "
puts "(case 1)"
puts "========="
puts ""
########################################################
## Result of cut and fuse operation are faulty shapes although arguments are valid.
########################################################

restore [locate_data_file OCC497a.brep] a_1 
checkshape a_1

restore [locate_data_file OCC497b.brep] a_2
checkshape a_2

explode a_2 so
bop a_2_1 a_2_2
bopfuse r1

if [catch {bcut result a_1 r1 } catch_result] {
    puts "Faulty OCC497:function CUT works wrongly "
} else {
    puts "OCC497 : function CUT works without hangs up "
}
set square 646.969
set 2dviewer 0