Matej Mailing <mailing@...> writes: > > Hi, > > I have a layer that contains roads in polygons and I need to get > central lines of the polygons. When I convert directly from polygons > to lines, I get two lines for each part of the road representing road > "boundaries" which isn't good. > > What is the best way to achieve it?
You may want to have a look at the OpenJUMP skeletonizer plugin, if not else then just getting some inspiration. http://sourceforge.net/projects/jump-pilot/files/OpenJUMP_plugins/More%20Plugins/JUMP%20Skeletonizer%20Plugin/ There seems to be an article about skeletonizing with PostGIS http://ageoguy.blogspot.fi/2010/12/squelettisation.html -Jukka Rahkonen- _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user
