[gdal-dev] GDAL WMS questions...

[Travis Kirstine]

My guess is that SRS is used when connecting to a WMS Version <= 1.1.1 and
CRS is used when connection to 1.3

Regards


On 30 January 2013 15:03, Carl Godkin <cgodkin at gmail.com> wrote:

>
> Hi,
>
> I'm working with GDAL_WMS in 1.9.2 and have two questions.
>
> 1. Coordinate system
>
> The documentation on http://gdal.org/frmt_wms.html lists both <SRS>/<CRS>
> inside the <Service> element as well as <Projection> inside the root
> element, <GDAL_WMS>.
>
> What's the difference?  Both are defined simply as "Image projection."  Is
> there further information somewhere besides this page?
>
> 2. Tiles
>
> I don't understand why or when I'd use a tiled vs. untiled request.  If
> I'm interested in a JPEG or PNG from a particular server covering a
> particular area in a particular coordinate system, why would I choose one
> over the other?  Again, if this is explained elsewhere in the
> documentation, please point me there.
>
> Thanks very much,
>
> carl
>
>
>
>
>
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