SRS handling questions

Martin Schulze joey at infodrom.org
Thu Mar 25 19:45:05 CET 2004


Silke Reimer wrote:
> > My interpretation is that a layer is available for the SRS it
> > announces in the <BoundingBox> elements (and llbbox) with the
> > respective minimum enclosing rectangle as specified.
> 
> In my opinion the announcement of SRS is done in the SRS-element not
> in the BoundingBox-element (see above).

> You quote:
>
>      [..] A server which has the ability to transform data to different
>      SRSes may choose not to provide an explicit BoundingBox for every
>      possible SRS available for each Layer.
>
>      The server should provide BoundingBox information for a tleast the
>      native SRS of the Layer.
>
> Hence you can announce SRSes without giving a BoundingBox for a
> specific SRS. I interpretate this as: The announcement is done in
> the SRS element while you *can* provide a BoundingBox. 

*blush* You are correct.  I don't know how I managed to overlook this
during reading an typing.

Doesn't this pose a problem with non-existent knowledge in the client
about the known rectangle in that particular projection?  The server
can cope with it without a problem.

> I agree with you that the spec doesn't prevent you to provide a
> BoundingBox for a SRS which is not in the SRS-element but my
> interpretation of the spec is that this should not be the case. 

Ok.  I'll adjust the code.

-- 
We all know Linux is great... it does infinite loops in 5 seconds.
        -- Linus Torvalds




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