[DAS] maxbins in DAS1.6?

[Jonathan Warren]

At the moment the test is with a small maxbins parameter and a very  
large one and if the number of features returned is different then it  
is specified as a valid maxbins server. I think I found one server  
that supported maxbins and this crude test worked. If you have servers  
that use maxbins I'd be interested in using them for testing as I  
wouldn't be surprised if there are issues with this.

The registry has recently changed so that it tests most capabilities  
irrespective of stated capabilities and shows a yellow light to  
indicate that a capability is possibly_valid. The registry sources cmd  
also has this information as a property.
http://www.dasregistry.org/das/sources

As you have just stated in your email - you can use capabilities in  
the headers for maxbins.

The registry is being developed to look at headers now as well to give  
feedback and gather statistics on servers.

Any feedback and suggestions obviously welcomed.

Jonathan.


On 15 Sep 2009, at 12:27, Thomas Down wrote:

> Out of curiosity, how are you testing the maxbins support (except, I  
> guess, checking that servers don't blow up when sent the maxbins  
> query parameter)?
>
> Also, is there any way for individual datasources to advertise  
> whether or not they're implementing maxbins?  In the past, clients  
> have been able to re-use cached data when the user zooms in, but  
> maxbins breaks that assumption.  But it would be nice to be able to  
> just re-fetch data for tiers which are actually likely to change  
> when you zoom.
>
>             Thomas.
>
>
>
> On Tue, Sep 15, 2009 at 12:14 PM, Jonathan Warren  
> <jw12 at sanger.ac.uk> wrote:
> Hi Thomas
>
> It's definitely going to be in 1.6 if it's not mentioned already.  
> There is also testing and support now in the registry for maxbins  
> with both the 1.5 and 1.6 specs.
>
>
>
> On 15 Sep 2009, at 11:52, Thomas Down wrote:
>
> As an enthusiastic user of the maxbins extension:
>
>               http://www.dasregistry.org/extension_maxbins.jsp
>
> I note that this isn't currently mentioned in the DAS1.6 spec.  Is the
> extension likely to be rolled into the revised spec?  Left as an  
> extension?
> Or is there some other plan out there now for handling high-density  
> data?
>
>            Thomas.
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> Jonathan Warren
> Senior Developer and DAS coordinator
> jw12 at sanger.ac.uk
> Ext: 2314
> Telephone: 01223 492314
>
>
>
>
>
>
>
> -- 
> The Wellcome Trust Sanger Institute is operated by Genome  
> ResearchLimited, a charity registered in England with number 1021457  
> and acompany registered in England with number 2742969, whose  
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>

Jonathan Warren
Senior Developer and DAS coordinator
jw12 at sanger.ac.uk
Ext: 2314
Telephone: 01223 492314








-- 
 The Wellcome Trust Sanger Institute is operated by Genome Research 
 Limited, a charity registered in England with number 1021457 and a 
 company registered in England with number 2742969, whose registered 
 office is 215 Euston Road, London, NW1 2BE.