# subtract_5 (Sheet/Sheet)
# written by John Dannenhoffer

# generate box and cylinder SheetBodys
BOX       0  0  0  3  2  1
EXTRACT   0
STORE     theBox

CYLINDER  3/2  -1  1/2  3/2  3  1/2  1/4
EXTRACT   0
STORE     theCylinder

# show outlines of theBox and theCylinder
RESTORE   theBox
ATTRIBUTE _name  $theBox
ATTRIBUTE _viz   $off

RESTORE   theCylinder
ATTRIBUTE _name  $theCylinder
ATTRIBUTE _viz   $off

# perform the SUBTRACTion (SheetBody)
RESTORE   theBox
RESTORE   theCylinder
UNION
ASSERT    @itype 2

END