[racket] rotate an image using 2htdp/image
On Jul 19, 2010, at 11:54 AM, Mathew Kurian <bluejamesbond at gmail.com> wrote:
> I am trying to rotate an image around a certain point. Using the 2htdp/image and its rotate function, it seems to be rotating the image.
>
> But what is it rotating around?
In a sense, it's the center (more precisely, the center of the bounding rectangle). But to do what you probably want to do, here's a little trick: overlay it on a white or transparent circle large enough to completely contain it. Wherever you put the center of the circle, that's what it'll rotate around.
Steve Bloch