Matthew, you can find the legend here: http://www.grassbook.org/data_menu3rd.php -> ncexternal/: NC original data set sources, metadata and copies of some original data -> take metadata link -> Streets.shp ... streets_wake_legend.csv
Most columns are explained there (as I could reconstruct them from the original metadata which you also find linked there (see "Data URL")). Hope this helps, Markus Yancho wrote: > > Hi, > > Whilst I am waiting for the book to arrive I have started playing a bit > with > the sample dataset of North Carolina. I am interested in the streets layer > (dataset) since basiclaly I am about to do some routing work. > > Can someone please be kind enough to explain to me what do these columns > represent? > > frleft bigint, > toleft bigint, > frright bigint, > toright bigint, > frleft_a bigint, > toleft_a bigint, > frright_a bigint, > toright_a bigint, > one_way character varying(80), > ft_cost numeric, > tf_cost numeric, > shape_len numeric, > length double precision, > > Also what is the difference between shape_len and length please? > > My main concern are the one_ways and how I should treat them please. > > Any help will be extremely appreciated! > > Regards > > Matthew > > -- > Matthew Pulis > URL : http://www.solutions-lab.net > MSN : [EMAIL PROTECTED] > ICQ : 145951110 > Skype : solutions-lab.net > -- View this message in context: http://www.nabble.com/3rd-Grass-Book-Data-Set-tp14242058p14244689.html Sent from the Grass - Users mailing list archive at Nabble.com. _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
