I need to convert a road network in polygons to lines to do a network analysis.
I converted polygons to line by using v.type.bl- converting boundaries to
lines. Then instead of getting single lines, i'm getting border lines over the
polygon that was there earlier (No polygon its now line data).
Well, if roads are polygons it colud be a problem.
if you don't need atributes of roads I sugest to convert polygons to
raster, run r.thin, and convert raster to lines. But in that way you
will lost road attributes.
supunmali pisze:
I need to convert a road network in polygons to lines to
Is that mean it is not possible?? I need the attribute data to do network
analysis (e.g. optimal path). Pls suggest a method.
Well, if roads are polygons it colud be a problem.
if you don't need atributes of roads I sugest to convert polygons to
raster, run r.thin, and convert raster to
