[OpenLayers-Users] Openlayers and Mapserver

[Till Adams]

Alessandro Ronchi schrieb:
> I've set up a mapserver. I can connect to it with qgis, but with
> openlayers I get a blank map.
>
> This is the url:
> http://ambiente.comune.forli.fc.it/rumore/mappa/
>
> Do you know what can cause the problem?
>
>
> A question: is it possible to get vector layer with openlayer and
> mapserver? I must show polygons informations.
>
>   
Alessandro,

if OL shows an image - although it is white - I guess you are on the 
wrong list....

For Mapserver an empty image could mean:

- you are in the wrong extent (e.g. BBOX and EPSG in your getMap Request 
don't fit.)
- there are no objects to be drawn, because you expressions might be wrong
(-->test with  EXPRESSION /./ in the first Class)

I'm sure there are more possible reasons, but it might be worth checking 
these first.

In Qgis - depending on the vesion - you'll have to adapt the standard 
ESPG number to the EPSG in which your WMS is able to serve.

Regards, Till

 



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