If you are using 2htdp/image, you can use 'rotate' http://pre.racket-lang.org/docs/html/teachpack/2htdpimage.html#(def._((lib._2htdp/image..rkt)._rotate))
If you are using a dc directly with draw-bitmap, you can use a different 'rotate' http://pre.racket-lang.org/docs/html/draw/dc___.html?q=draw-bitmap#(meth._(((lib._racket/draw..rkt)._dc~3c~25~3e)._rotate)) How are you drawing? Jay 2011年5月2日15:30 Jyu 。 <[email protected]>: > Hi ! > For a school project who use the chipmunk 2D physics library, I need to > rotate an image (instance of bitmap%).. > I searched for a long time but I have not found, someone know how can I do > this ? > Thanks. > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users > -- Jay McCarthy <[email protected]> Assistant Professor / Brigham Young University http://faculty.cs.byu.edu/~jay "The glory of God is Intelligence" - D&C 93 _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users

