Red [ Title: "shape-rotation.red" .links: [ https://gitter.im/red/help?at=5b44b42363042f2df365e019 ] ] width: 100 view compose/deep [ title "Shape rotation demo" base 800x500 white draw [ shape [move 375x225] pen blue shape [ 'hline (width) 'vline (width) 'hline (0 - width) 'vline (0 - width) ] pen red rotate 30 (make pair! reduce [ (375 + width) (225 + width)]) shape [ 'hline (width) 'vline (width) 'hline (0 - width) 'vline (0 - width) ] rotate -30 (make pair! reduce [ (375 + width) (225 + width)]) pen black arc (as-pair 375 + width 225 + width) 50x50 180 30 ] ]