[DAS] Scaling of DAS tracks

[Andy Jenkinson]

Hi Christian,

Did you use the 'max' and 'min' properties? These tell the client how  
to scale the data, otherwise it can only use the values it receives  
for any one region to guess what they are. Ensembl makes no  
assumptions that the scale for one track is the same for another, and  
in the absence of explicit min/max values assumes that the maximum is  
the highest score it received, and the minimum is the lowest.

If however the maximum height of the track itself is different (i.e.  
the height in pixels of the label region) this must be something else.  
If you show me the stylesheet and features response I can take a look  
for you.

The documentation link you posted works for me, is it still giving a  
404? In any case, I believe Ensembl supports all of the stylesheet  
functions in the specification.

Cheers,
Andy

On 11 Sep 2009, at 16:46, Christian Ruckert wrote:

> I have provided a histogram stylesheet for my DAS tracks, as  
> described at http://www.dasregistry.org/extension_stylesheet_histogram.jsp 
> .
>
> Now when viewing my tracks in ensembl I have problems with the  
> correct scaling. One track is displayed twice as high as the other,  
> despite the score values are only half as high.
>
> Is there some documentation which stylesheet commands are supported  
> by ensembl. The link to the ensembl stylesheet convention at http://www.dasregistry.org/spec_1.53E.jsp 
>  returns a 404 error.
>
> Thanks,
> Christian
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