Kevin and Martin, Thanks for your suggestion! I will try the plug-in. It looks amazing.
Eric On Jan 19, 2008 12:35 AM, Kevin Neufeld <[EMAIL PROTECTED]> wrote: > Eric, > > Are you perhaps after generating voronoi skeletons with your areas? > > If so, you may be interested in the free Skeletonizer Utility (SK) > plugin for JUMP that we developed here at Refractions a while back. > http://www.jump-project.org/project.php?PID=SK&SID=OVER > > This utility will generate voronoi skeletons (center lines) given a > polygon and a set of input/output points. > > The attached picture shows the results using a long narrow lake and > stream input/output points as input. > > Cheers, > Kevin > > ------------- > Kevin Neufeld > Software Developer > Refractions Research Inc. > 300-1207 Douglas St. > Victoria, B.C., V8W 2E7 > > Phone: (250) 383-3022 > Email: [EMAIL PROTECTED] > > > > > Eric Yu wrote: > > Hi, > > > > Suppose I have a long shaped polygon, like river area or the road, > > is it possible to get the centerline of the area using PostGIS? > > Or with other GIS library/software? I searched and tried but failed to > > get any solution. > > > > Thank! > > > > Eric _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
