[Chart] Chart Digest, Vol 7, Issue 4

Sacha Sokoloski sacha404 at gmail.com
Mon Oct 22 08:29:34 BST 2012


So I've implemented the marching squares algorithm for making contour 
plots in Haskell. It depends on containers in order to work, but other 
than that, it's pure simple haskell code. In order to render them more 
nicely, I'm working on an algorithm for making smooth line plots using 
the bezel line drawing functionality of cairo.

I was planning on building that into the PlotLines datatype. Basically, 
the degree of smoothing can be controlled with a single parameter, with 
0 being off. So one of the accessors to PlotLines would be 'smoothing' 
which defaults to 0, but when increased will smooth your plot.

If both of these sound like nice features, I'll wrap up a patch and send it.

  - Sacha

On 30/08/12 01:00 PM, chart-request at projects.haskell.org wrote:
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>     1. Re: no plots with invisible axes? (Tim Docker)
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> Message: 1
> Date: Wed, 29 Aug 2012 22:15:12 +1000
> From: Tim Docker <tim at dockerz.net>
> Subject: Re: [Chart] no plots with invisible axes?
> To: Alex Lang <lang at tsurucapital.com>
> Cc: chart at projects.haskell.org
> Message-ID: <DF028F1B-08D1-4206-ACCD-AEBE53478037 at dockerz.net>
> Content-Type: text/plain; charset=windows-1252
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> It's certainly unexpected - probably a bug.
>
> I'll take a look at this?
>
> Tim
>
>
> On 28/08/2012, at 9:11 PM, Alex Lang wrote:
>
>> Is it expected behaviour that my plots do not get rendered if all my
>> layout axes have laxis_visible set to const False?
>>
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> End of Chart Digest, Vol 7, Issue 4
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