STYLEITEM with postgis datasource (via OGR)

[lionel]

Frank Warmerdam a écrit :

>
>Lionel,
>
>Are you hoping to have "OGR Auto-styling" kick in based on reading
>an attribute with style strings?  
>
Yes that's what I was hoping

>I don't think this works.  I believe that
>autostyling is only applied if you use specifically 'STYLEITEM "AUTO"' and
>then it fetches the style item from the "special" style attribute of
>the feature.
>  
>
I believed STYLEITEM could be "AUTO" or defined in the OGR layer, and 
then could be build on the fly in a query.

>This isn't a real attribute though, and even naming an attribute style
>isn't
>the same as the "official" style string.
>  
>
So, we will do it with a little mapscript code.

>What you need is a way of telling mapserver to use autostyling, but
>to read the style from a named attribute.  I don't think that exists, but
>it could be added reasonably easily.
>
>I would add that Daniel Morissette is the authority on OGR autostyling
>in mapserver, and might have more to add.  However, he is sometimes
>to busy to stay on top of mapserver-users questions.
>  
>
Thanks a lot and best regards,

Lionel