Re: [GRASS-user] v.lidar.growing dbmi: Protocol error

2009-04-24 Thread Jack Lonsdale
On Fri, 2009-04-24 at 23:51 +0200, Markus Neteler wrote: > On Wed, Apr 22, 2009 at 10:58 PM, Jack Lonsdale wrote: > > I am continuing to try and use Grass to process my LiDAR data. However, > > having completed v.lidar.edgedetect successfully I am unable to complete > > v.lidar.growing > > > > fir

Re: [GRASS-user] v.lidar.growing dbmi: Protocol error

2009-04-24 Thread Markus Neteler
On Wed, Apr 22, 2009 at 10:58 PM, Jack Lonsdale wrote: > I am continuing to try and use Grass to process my LiDAR data. However, > having completed v.lidar.edgedetect successfully I am unable to complete > v.lidar.growing > > firstly, just to check, the 'first' parameter is the raw dataset? If not

Re: [GRASS-user] Re: v.lidar.growing dbmi: Protocol error

2009-04-24 Thread Jack Lonsdale
> First we need to know what you use: > > db.connect -p > > The db.connect manual page also shows how to switch to the > SQLite backend: ideally done in a new mapset. Then add the > previous mapset to the search path with g.mapsets and > repeat there the v.lidar.* commands the in new mapset. >

Re: [GRASS-user] about Analytic Hierarchy Process (AHP)

2009-04-24 Thread Zahid Parvez
Isn't it possible to make a new module within grass that support AHP. Arcview support AHP. Why don't GRASS. best zahid On Thu, Apr 23, 2009 at 3:04 AM, Milton Cezar Ribeiro < miltinho.astrona...@gmail.com> wrote: > How about some python solution? > Just a curious.. > > milton > > 2009/4/22 Raine

Re: [GRASS-user] buffer vector within a given area

2009-04-24 Thread Martin Schweizer
Annalisa Thanks for your help, but there is a little problem: I calculate the agricultural land around a city, then i buffer the vector, transform it into a raster map and subtract all the "not possible land". At the end, there is less agricultural land than I calculated. There must be a buffering

Re: [GRASS-user] buffer vector within a given area

2009-04-24 Thread Annalisa Minelli
Martin, after you have done the buffering operation (as Moritz said), and transformed vector map (buffer_areas) in raster (v.to rast), you can easily extract only the interested areas by using a mapalgebra operation.. for example: if "agri" is the map of your agricultural areas (green map) and "bu