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
<[email protected]> 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
[email protected]
Ext: 2314
Telephone: 01223 492314
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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
registeredoffice is 215 Euston Road, London, NW1 2BE.
Jonathan Warren
Senior Developer and DAS coordinator
[email protected]
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.
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