Fri 03 Aug 2007 10:37, Joseph Guillaume wrote: > I'm trying to run a travelling salesman analysis between point features on a > road map, but it tells me that two nodes are unreachable from one another, > which is a fatal error. yes, i too guess vertex A is not connected with vertex B for some reason..
..sometimes the problem is quite subtle, like not matching charsets while importing data http://pgrouting.postlbs.org/discussion/12/27 etc.. there's some high-quality sample data available (download "Premium", free registation required) which you could use to check if the issue is really GRASS or your own (faulty) data .. http://www.adci.com/samples/navteq.html > find an OSS alternative that works on Debian - and it seems GRASS is the > only software currently able to do network analyses. NAK, have there's also http://pgrouting.postlbs.org/. _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
