[racket] rotate an image using 2htdp/image

From: Matthias Felleisen (matthias at ccs.neu.edu)
Date: Mon Jul 19 17:56:04 EDT 2010

But these are two orthogonal questions: 

 -- rotating an image 
 -- placing an image in a "constrained" background 

Shouldn't they be provided by two distinct functions? 

On Jul 19, 2010, at 5:32 PM, Eugene Wallingford wrote:

>>> Just want to clear up things....the how can adjust the pinhole or the
>>> rotation center?
>> There is no pinhole. My earlier reply was trying to tell you that this
>> question does not make sense.
>     Perhaps Matthew is concerned not so much with the
>     resulting orientation of the image as with its
>     resulting location in the original field.  If I
>     rotate an image 180 degrees about its upper
>     leftmost corner, most or all of it may be out 
>     the original view.
> ---- Eugene
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