Hello Genis. I think the way the WMS spec works to request a tranparent background tile you need to set up OpenLayers to send TRANSPARENT=true as one of you getMap request parameters. This is not the way Mapnik works but how the OgcServer implementation works.
Dane On Oct 8, 2009, at 1:31 PM, Genis Pujol Hamelink <[email protected]> wrote: > Hello list, > > I've created a wms service using mapnik with 2 layers. > > One is being used as the base layer (using openlayers) and the 2nd > one is a switchable layer on top of that (it displays a UTM grid). > > The problem appears to be that the backgound of the 2nd layer (a > grid) is color white instead of transparent, so it renders on top of > the base layer... > > I know I can set the opacity of the polygon to 0, but how can I set > the background of the map to transparent? > > Kind Regards, > > G > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
