Code example for transformation by mouse dragging

From: Wolfgang (Mott_at_nospam.UNM.edu)
Date: 01/31/04 

Date: Sat, 31 Jan 2004 02:56:46 GMT

I'm looking for a simple code example that uses the mouse to grab a
hold of geometric shape, say a circle (but can be something else), and
while dragging the mouse rotates and transforms the shape to reflect
it's new rotational position (in the case of a circle this would be
some ellipse) .

Can someone point me to a code example for this?

Thanks.

Wolfgang