[Chameleon] Locate Widget

Paul Spencer pagameba at magma.ca
Tue Jul 20 07:52:20 EDT 2004

Ken, I don't know how the NTS MapSheet lookup service is implemented. 
We just connect to the service, provide input in a certain format and 
expect results back in another format.  I would expect that the naming 
convention of mapsheets is sufficient for them to locate the mapsheet 
geographically.  To Chameleon, it is immaterial how you implement the 
service but very important that you clearly define how data is passed to 
and from your service. Hope that helps,


Ken Sanderson wrote:
> Hello all,
> I have a couple questions in regards to the locate widget, specifically
> about what is happening at the service end.
> I have a need to setup something similar as the NTS Mapsheet tool, only
> using a different grid. How does the NTS lookup service work? Is it just
> a database where each mapsheet has a listed extent that you grab from
> the query response? I assume its not a WMS or WFS layer? Is it just a
> math formula given that the NTS grid follows Lat/Longs?
> Any general/specific information on this would be appreciated.
> Thanks,
> Ken Sanderson
> Miistakis
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> Chameleon at lists.maptools.org
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|Paul Spencer                           pspencer at dmsolutions.ca   |
|Applications & Software Development                              |
|DM Solutions Group Inc                 http://www.dmsolutions.ca/|

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