// Define a leg
thigh = Cube
thigh.scaleFactor = [ .6 1.1 .6]
calf = Cube
calf.scaleFactor = [ .5 1.1 .5]
foot = Cube
foot.scaleFactor = [.4 .4 1]
draw foot
draw calf above foot and -1 behind foot
draw thigh above calf
save as "leg.iv"