box b1 0 0 0 1 1 1 nurbsconvert b1 b1 box b2 0 -0.5 0 0.5 0.5 1 bfuse result b2 b1 checkprops result -s 7.5 checkview -display result -2d -otherwise { b2 b1 } -s -path ${imagedir}/${test_image}.png