Hi Dane, Thanks for tip - I'll try it. So, I can use this function to invert shapefiles? - Import into DB -> export via ST_DIFFERENCE?
-- RO On Mon, Apr 20, 2009 at 7:00 PM, Dane Springmeyer <[email protected]>wrote: > Hey Oleg, > > Sorry I missed responding to this earlier, but the answer is no AFAIK. > > Aside from assigning a map background color and then 'cutting' out that > color with polygon fill, there is no support for filling outer space of a > polygon. What is your use case? Is it possible to dynamically run a postgis > query that calculates an inverse polygon shape of this outer space given > your setup? You could do this by using the ST_DIFFERENCE function against a > bounding rectangle that covers your whole map and the polygon you want to > clip out. > > Cheers, > Dane > > > On Apr 13, 2009, at 2:32 AM, Oleg Shaniuk wrote: > > Hello to all >> >> I didn't get in with new mapnik's drawing possibilities - is it possible >> draw polygons in inverted manner - keep inner space of polygon transparent, >> draw borders and fill outer space? Does new RasterSymbolizer can do it? Is >> it possible at all? >> >> -- >> -- >> RO >> _______________________________________________ >> Mapnik-devel mailing list >> [email protected] >> https://lists.berlios.de/mailman/listinfo/mapnik-devel >> > > -- -- RO
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