Hi, you can do this with OpenLayers as well.
To get a clicked position use something like this: http://openlayers.org/dev/examples/click.html To render a circle buffer around the clicked position use this function: http://dev.openlayers.org/docs/files/OpenLayers/Geometry/Polygon-js.html#OpenLayers.Geometry.Polygon.createRegularPolygon Best regards, Chris On 30.01.2012 09:57, Raymond Nijssen wrote: > Try JSTS. It integrates very well with OpenLayers and contains the > Buffer-function client side in javascript. That means it works on > features in a vector-layer. I'm not sure if that is what you're > looking for though. > > https://github.com/bjornharrtell/jsts > > Good luck! > > Raymond > > > > On 01/30/2012 09:06 AM, Robert Buckley wrote: >> Hi, >> >> I need to implement a "simple" buffer tool. The tool should simply >> place a Buffer zone around the position clicked in the map when the >> tool is activated. >> >> ...the tool should work like this... >> >> 1. Activate tool in toolbar >> 2. Set Radius in map units >> 3. Click in map >> 4. buffer polygon based on the set radius is created and rendered in >> the map >> >> >> >> My system is Geoserver 2.1.2 / Postgis 1.5 >> >> I have done this with an sld and also in postgis ...but I really need >> the real-time effect in the map! >> >> any help or examples would be great, >> >> yours, >> >> Robert >> >> >> >> >> _______________________________________________ >> Users mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/openlayers-users > > -- > Terglobo > Ampèrestraat 110 > 5223 CT 's-Hertogenbosch > 06-25314983 > > > _______________________________________________ > Users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/openlayers-users
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