Re: [GRASS-user] v.net.iso - service area

2010-05-12 Thread David Mahoney
that is strongly convex that protrudes into another service area. David -- __ David Mahoney GIS Analyst david.maho...@tecogroup.ca TECO Natural Resource Group Tel: (250) 562-2628 ext 232 Fax: (250) 562-694

Re: [GRASS-user] v.net.iso - service area

2010-04-08 Thread David Mahoney
I went through this last year, and as I remember, v.hull doesn't quite get you there, since the resultant polygon can't dip in to reach concave sections of a service area. I used v.delaunay to create a network of the nodes that made up the connections between service areas, and v.net.salesman to

Re: [GRASS-user] Using v.edit to snap dangling lines

2008-02-28 Thread David Mahoney
Works like a charm. Thanks! David On 27-Feb-08, at 2:01 PM, Martin Landa wrote: Hi, 2008/2/27, David Mahoney [EMAIL PROTECTED]: I rewrote today query=dangle part of v.edit to use the algorithm of v.clean tool=rmdangle|chdangle (lib/vector/Vlib/dangles.c). I am not sure if it can solve your

[GRASS-user] Using v.edit to snap dangling lines

2008-02-26 Thread David Mahoney
I've been trying to use v.edit to snap dangling lines after patching together a bunch of maps. However, the query=dangle option does not seem to work. I've tried: v.edit map=roads tool=select query=dangle thresh=0 v.edit map=roads tool=select query=dangle thresh=-0 v.edit map=roads