Re: [GRASS-user] Generating DEM from bare ground LIDAR data: v.surf.idw or v.surf.bspline ?

stephen sefick wrote: I have a multitude of DEMs to generate at 1m resolution.  Are there any references that compare v.surf.idw and v.surf.bspline?  Any advice or experience with either of these two modules would be helpful. Which one of these modules creates the most accurate representation

[GRASS-user] Ubuntu GRASS Stable

Hi, i just wonder if the grass version in the sources (ubuntuggis, linked on the grass hp) is the latest stable release, because its named 6.4.0~rc6-2~lucid1. Sounds like an earlier rc. Are there any other repositorys for the stable release, or when will it be updated? christian

[GRASS-user] r.stream.basins error

Hi all, I am trying to generate a basins map from a dem using r.stream.basins I first cut the dem to the area I want to work on than run g.region to set the region to this map. Then I calculated streams and streams flow directions with r.stream.extract. In order to get stream basins I used

[GRASS-user] Compiling a C function in Windows (using OSGEO4w)

Greetings I'm used to Ubuntu-GRASS compilation and use but now I need to compile a function (image processing) for winGRASS with OSGEO4W and I just want to confirm how to do it. in Ubuntu I do: cd general source folder sudo make -C module MODULE_TOPDIR=path to installed GRASS is it similar with

[GRASS-user] Difference between r.series; r.patch

Hi there I have a sequence of satellite images (e.g 1 in the north, other in the center and other in south) that I want to merge in a single image. I found three GRASS methodologies: - r.series - r.patch - i.image.mosaic. Which one is the best to perform what I need? Thanks Katrin

Re: [GRASS-user] Line of Sight/Viewshed help

Dan Connors wrote: A cell phone provider wants to install a cell tower in our neighborhood along a protected ridgeline. I am working with some of the neighbors to see what options our town has to regulate the location of the tower. I have been trying to learn the GRASS system and volunteered

Re: [GRASS-user] r.stream.basins error

Francesco Mirabella wrote: Hi all, I am trying to generate a basins map from a dem using r.stream.basins I first cut the dem to the area I want to work on than run g.region to set the region to this map. Then I calculated streams and streams flow directions with r.stream.extract. In order

Re: [GRASS-user] r.stream.basins error

Francesco Mirabella pisze: Hi all, I am trying to generate a basins map from a dem using r.stream.basins I first cut the dem to the area I want to work on than run g.region to set the region to this map. Then I calculated streams and streams flow directions with r.stream.extract. In order

[GRASS-user] Grass Script- Implementing a Quadratic Mahalanobis Distance

Greetings I need to implement a Quadratic Mahaloanobis Distance by using GRASS. This is based on medium vector and covariance matrix. 1- As anyone implemented anything similar? 2- If not, Is there any GRASS script that accesses medium vector and Covariance matrix in its processing? Thanks

[GRASS-user] r.in.wms with other file types... (Arc Grid and others)

Does r.in.wms work with any other formats than the defaults. I am trying to connect to a usgs server to grab a large amount of data and being able to use ArcGrid, Bil, Bil_1, Integer, TIFF, GridFloat would be very handy. Are there any options for this? kindest regards, Stephen Sefick

Re: [GRASS-user] r.univar.zonal not installing

Hi Laura, Did you have to recompile an updated Grass65 from svn? I am still unable to install this either from g.extension or compiling it from source.. Vishal On Fri, Oct 8, 2010 at 1:43 AM, Laura Poggio laura.pog...@gmail.com wrote: Dear all, it worked using g.extension on an updated