restore [locate_data_file cylindre.rle] cyl
restore [locate_data_file contour.rle] cont
mkplane cont cont
nexplode cyl F

ttranslate cont 0 0 -100
#
# flo : 25/06/1998 : Argument 3 featperform -> face et non surface
#
mksurface surf cyl_3
mkface face surf
featprism cyl cont cont 0 1 0 0 1
featperform prism result face

checkprops result -s 82351.1