Re: [Matplotlib-users] XKCD style graphs?

[Phil E. <pel...@gm...>]

Nice challenge Fernando!

Damon, I love the solution! I do wonder whether we could do some
quirky transform on the lines to achieve a similar result, rather than
manipulating the data before plotting it. The benefit is that
everything should then get randomly Xkcd-ed automatically - maybe I
will save that one for a rainy day....

Thanks for posting!



On 4 October 2012 11:31, Damon McDougall <dam...@gm...> wrote:
> On Thu, Oct 4, 2012 at 10:44 AM, Damon McDougall
> <dam...@gm...> wrote:
>> On Thu, Oct 4, 2012 at 10:02 AM, Pierre Haessig
>> <pie...@cr...> wrote:
>>> Hi Fernando,
>>>
>>> Le 04/10/2012 09:16, Fernando Perez a écrit :
>>>> This would make for an awesome couple of examples for the gallery, the
>>>> mathematica solutions look really pretty cool:
>>>>
>>>> http://mathematica.stackexchange.com/questions/11350/xkcd-style-graphs
>>> I've never used Mathematica so that it's pretty difficult for me to
>>> understand the following lines of code which I guess do the main job of
>>> distorting the image
>>>
>>> xkcdDistort[p_] := Module[{r, ix, iy},
>>>    r = ImagePad[Rasterize@p, 10, Padding -> White];
>>>    {ix, iy} =
>>>     Table[RandomImage[{-1, 1}, ImageDimensions@r]~ImageConvolve~
>>>       GaussianMatrix[10], {2}];
>>>    ImagePad[ImageTransformation[r,
>>>      # + 15 {ImageValue[ix, #], ImageValue[iy, #]} &, DataRange ->
>>> Full], -5]];
>>>
>>>
>>> Is there somebody there that can describe this algorithm with words
>>> (English or Python ;-)) ?
>>>
>>> I feel like the key point is about adressing the rasterized plot image
>>> "r" with some slightly randomized indices "ix" and "iy". However, I
>>> really don't get the step that generates these indices.
>>>
>>> Best,
>>> Pierre
>>
>> I believe this is in your interests: http://i.imgur.com/5XwRO.png
>>
>> Here's the code: https://gist.github.com/3832579
>>
>> Disclaimer: The code is ugly; don't judge me. Also, I installed the
>> Humor Sans font but I couldn't get mpl to find it. Oh well :)
>
> I got the font working :) http://i.imgur.com/Dxemm.png
>
> --
> Damon McDougall
> http://www.damon-is-a-geek.com
> B2.39
> Mathematics Institute
> University of Warwick
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