[GRASS-user] GIS Lock issue

Dear List, I am having GIS LOCK issue with a Location. Using my external storage device, I replaced the Location on my HD with a slightly older version of it (exactly the same name). However, at the start-up screen, the mapsets in this location are greyed out and I get the following message: /Use

[GRASS-user] Problem with overlaping buffers in GRASS - v.stats.rast

Hello, I am trying to calculate univariate statistics from a raster based on a series of buffer polygons that I created around a point layer. The problem is that the buffer polygons overlap with neighbouring ones, creating new polygons in areas where they intersect. As a result, when I run v

[GRASS-user] Re: Drivetime Isochrones

i think i have figured out where my problem lies. It is in the centre node costs... from the manual is says right at the top that centre node must be opened (costs >= 0). however i have not defined costs for the centre node at any point... could this be the issue? how do i go about defining costs f

[GRASS-user] r.walk, wrong symmetric results

Dear list, I've tried many times to calculate movement costs with r.walk (different DEMs, but mostly GeoTiff format) but every time I get symmetric/euclidean results (radial structure of the cost surface). First I want pure walking information, so I set lamda = 0. The friction surface should

Re: [GRASS-user] Grass7 r.in.lidar compile error

Thanks Markus - I'm glad there's a cleaner solution than that dirty hack! I'll test it ASAP, Pierre 2011/6/22 Markus Metz : > On Tue, Jun 21, 2011 at 2:28 PM, Daniel Victoria > wrote: >> Hi Pierre, >> >> I did the same thing you did and Grass compiled without errors. The >> only difference is t