# Original bug : cts21128
# Date : 21August98

restore [locate_data_file cts21126_base.brep] base
restore [locate_data_file cts21128b.rle] cont

explode base face
copy base_3 funtil

## creation face infinie support
mksurface p3 base_3
mkface f3 p3

featprism base cont cont 0 0 1 0 1
featperform prism result f3

checkprops result -s 2814.01
