[Context.RWG] Using OWS Context to describe GML/WFS layers whichdecimate

Kralidis,Tom [Burlington] Tom.Kralidis at ec.gc.ca
Tue Oct 31 14:59:08 EST 2006


Cameron,

So you want one OWSContext FeatureType to hold many GML documents?

If yes, can you not define each GML doc as an OWSContext FeatureType,
each with respective scale rules?
 

> -----Original Message-----
> From: Cameron Shorter [mailto:cameron.shorter at gmail.com] 
> Sent: 30 October, 2006 7:29 PM
> To: Martin Daly
> Cc: context.rwg at opengeospatial.org; Kralidis,Tom 
> [Burlington]; webmap-discuss at mail.osgeo.org; Raj Singh
> Subject: Re: [Context.RWG] Using OWS Context to describe 
> GML/WFS layers whichdecimate
> 
> Martin,
> Point taken regarding G/Y/M maps. Replace zoomLevel with 
> sld:Min/MaxScaleDenominator in my previous comment.
> 
> I still need to reference different GML sources for each 
> layer depending on scale, which doesn't seem to be covered by 
> OWS Context yet.
> 
> 
> Martin Daly wrote:
> >>zoomLevel is a term used by Google/Yahoo/MSN Maps.
> >>It is a measure of resolution. As you zoom out, the zoomLevel 
> >>increases.
> > 
> > 
> > That is not a definition that will wash in a standard that aims for
> > interoperability.
> > 
> > In fact, OWS Context already uses sld:Min/MaxScaleDenominator in the
> > AbstractResourceType, so the capability already exists.
> > 
> > As with the previous long e-mail trail re. GYM data, this 
> spec. should
> > leverage de jure OGC standards, not de facto ones that 
> large parts of
> > the target audience cannot use.
> > 
> > M
> > 
> > 
> 
> 
> -- 
> Cameron Shorter
> http://cameron.shorter.net
> 




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