Paul Kienzle wrote:
>
> On Nov 14, 2008, at 9:59 AM, Michael Droettboom wrote:
>
>> Paul Kienzle wrote:
>>> Hi,
>>>
>>> We found we needed to draw a partial ring, but didn't see one in 
>>> patches.py.
>>>
>>> Attached is a generalization of Wedge to accept an inner and an 
>>> outer radius.
>>>
>>> Should I add this to patches?
>> Looks like a useful feature to me.  Could be used for doing these 
>> sort of "hierarchical pie chart" graphs:
>>
>> http://linux.byexamples.com/wp-content/uploads/2007/04/baobab.png
>
> That's pretty, though I have no idea what it is supposed to represent.
It's the size of directories in a directory structure.  Each ring is a 
different depth of nesting.  Useful wherever you have a heirarchical 
percentages... 50% of %40 of %30...  Of course, suffers from the same 
usability problems of pie charts.  I'm not seriously suggesting we 
pursue this...  Your Ring class just reminded me of it.

Mike

-- 
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA


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