[OSM-newbies] newbies Digest, Vol 21, Issue 15

[Enzo Losantas]

Hi david,

thanks for replying on my post. actually we'd like to use it more for
describing density in a local area, say at a certain center-point, then try
to render a circle of variable radius. does this help enlighten you?

Andy Allan gave this reply in the dev mailing list:

*What kind of circles are you looking for? If you just want small circles to
mark point locations, then make a .png and use a
PointSymbolizer with it. But if you're trying to vary the size of the
circles, like for example "draw me a circle where the radius is proportional
to the population of the town", then you'd be better off creating polylines
in postgis (or shapefile) and then just
LineSymbolizer / PolygonSymbolizer depending on whether you want the outline
or it filled.*

although i wonder how exactly to implement this? we currently tried
installing a local osm, and pre-render tiles using mapnik as our tile
server.

thanks.
Enzo
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