On Sat, Dec 23, 2017 at 10:06 PM, Nuno Oliveira <
[email protected]> wrote:
> Since the geometry is in a sub element it will not be recognized as the
> default geometry and we need
> to specify in the SLD the geometry XPath. My first try was to use the
> following XPath:
>
> <ogc:PropertyName>*st:Station**/*st:position/st:location</ogc:
> PropertyName>
>
> To my surprise this didn't work, after debugging the code it looks like
> the root feature type should not
> be provided at the start of the XPath, so this is what should be used:
>
> <ogc:PropertyName>*st:position/st:location*</ogc:PropertyName>
>
>
Yep, that makes it consistent with simple features, where the full path is
never used.
> Conclusion, the way of referencing properties of App-Schema defined
> feature types is different
> in WFS and WMS (at least for GetFeatrue and SLDs).
>
> In my opinion the WFS GetFeature full XPath path is the most natural one
> and both WFS and
> WMS should use \ accept the same XPath.
>
I would never have thought of using the full path, but I don't play with
complex features, so that
probably explains it :-p
> I propose to allow the use of the full XPath in WMS (equal to WFS) but
> keep accepting the shorten
> one in WMS for compatibility reasons, opinions ?
>
And also keep it for consistency with simple features and common usage in
SLD: check SLD cookbook,
but also the SLD specification, all of the examples use single unqualified
names.
Ideally, it would be best if one could use short relative paths or full
qualified paths in both cases,
simple features and complex features, to have a good overall consistency
(e.g., someone using
mostly complex features might end up using full path for simple ones as
well).
It's likely already handled as a fallback by the XmlXPathPropertyAcessor,
but does not
hurt checking.
Cheers
Andrea
==
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Ing. Andrea Aime
@geowolf
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