[GRASS-user] grass : how to do Isochrone maps?

[image93]

Hello,

Thank you very much. The v.isochrones seems to require in input a vector
network (roads) with a speed attributes column. I have just checked my
openstreetmap roads vector layer. And this column is not fully completed,
data are lacking for many routes. How can I do? According to you, before
applying v.isochrones, should I do anything on the input data (editing about
attributes or/and geometry/topology) ? 

Thank you. 




--
View this message in context: http://osgeo-org.1560.x6.nabble.com/grass-how-to-do-Isochrone-maps-tp5176403p5177067.html
Sent from the Grass - Users mailing list archive at Nabble.com.