[racket] 2htdp/image question

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Sat Sep 11 09:28:47 EDT 2010

Thanks!

Robby

On Fri, Sep 10, 2010 at 10:40 PM, Nadeem Abdul Hamid <nadeem at acm.org> wrote:
> Yes, it looks to me like it works fine now. I used yesterdays' nightly
> build: version 5.0.1.5--2010-09-09, on Windows XP.
> --- nadeem
>
> On Fri, Sep 10, 2010 at 6:22 PM, Robby Findler
> <robby at eecs.northwestern.edu> wrote:
>> I believe this has been fixed in the latest GIT version. If someone
>> has the opportunity and interest to verify that under windows, I would
>> be most grateful.
>>
>> More details can be found here, on the underlying issues (where to
>> draw lines for rectangles):
>>
>>  http://pre.racket-lang.org/docs/html/teachpack/2htdpimage.html?q=nitty#(part._nitty-gritty)
>>
>> (The change I made is to make the outline in empty scene actually draw
>> entirely inside the scene instead of using an "outline" rectangle.)
>>
>> Robby
>>
>> On Fri, Sep 10, 2010 at 4:33 PM, Justin Zamora <justin at zamora.com> wrote:
>>> This is a bug/limitation of the Windows implementation.  I filed a bug
>>> report against this a few months ago
>>> (http://bugs.racket-lang.org/query/?cmd=view&pr=10969).  It apparently
>>> has something to do with the way 1-pixel lines are drawn and clipped
>>> on different platforms.
>>>
>>> Justin
>>>
>>> On Fri, Sep 10, 2010 at 5:23 PM, Mark Engelberg
>>> <mark.engelberg at gmail.com> wrote:
>>>> Why is it that
>>>> (empty-scene 100 100) produces a white scene with a black border
>>>> around all four edges, but
>>>> (place-image (circle 10 'solid 'red) 10 10 (empty-scene 100 100))
>>>> produces a scene with a black border only on its top and left edges?
>>>>
>>>> (This is in Racket 5.0.1 on Windows)
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