1pcylinder b1 1 2 2dset r sqrt(3)/2 3box b2 -r -1 0 2*r 1+r 1 4trotate b2 0 0 0 0 0 1 30 5 6bop b1 b2 7bopcommon result 8 9checkprops result -s 11.8813 10checkview -display result -2d -otherwise { b1 b2 } -s -path ${imagedir}/${test_image}.png 11