[GRASS-user] GRASS winver 6.3.svn(2007)

Malm Paul paul.malm at saabgroup.com
Wed Jan 16 09:16:17 EST 2008


-----Original Message-----
From: Moritz Lennert [mailto:mlennert at club.worldonline.be] 
Sent: den 16 januari 2008 13:08
To: Malm Paul
Cc: grass-user at lists.osgeo.org
Subject: Re: [GRASS-user] GRASS winver 6.3.svn(2007)


On 16/01/08 10:53, Malm Paul wrote:
> Hi, it is native. 

How come you use d.erase then which is not usable in wingrass (as it is
relevant only for monitors, not the gis.m display ? 
As I said I'm a new user of GRASS, I used the the command sequence from
a book "Open source GIS A GRASS GIS Approach".

Could you also answer the other questions or comments, so that we can
find out what the problem is ?
Ok, but it could be me that does it the wrong way as I'm not used to
GRASS.
/Paul

Moritz

> 
> Kind regards,
> 
> 
> 
> Paul Malm
> 
> -----Original Message-----
> From: Moritz Lennert [mailto:mlennert at club.worldonline.be]
> Sent: den 9 januari 2008 11:44
> To: Malm Paul
> Cc: grass-user at lists.osgeo.org
> Subject: Re: [GRASS-user] GRASS winver 6.3.svn(2007)
> 
> 
> On 08/01/08 10:05, Malm Paul wrote:
>>  
>> Hi,
>> has anyone qot the windows version to work?
>> I'm new to GRASS and I'm not sure if I'm doing this the right way.
>> I'm trying to create contour lines from a DTED file (name=f2227)
>>
>> g.region rast=f2227 -p
>> d.erase
>> d.rast f2227
> 
> Which windows version are you using ? Cygwin or native ? If you can 
> run d.mon x0, then this must be Cygwin.
Answer: Native
> 
> 
>> r.contour in=f2227 out=elev_c_10m step=10 --o  the r.contour program 
>> starts but nothing happends!!
> 
> works perfectly in native wingrass
> 
> 
>> I'm also trying to triangulate the dted file:
>>
>> First I tried to create vector points from the dted file r.to.vect 
>> input=f2227 output=point1 feature=point -s  the program starts but 
>> nothing happends!!
> 
> idem
> 
> 
>> Then I succeded to create the point file in Qgis GRASS module after 
>> that I draped the pointfile with the elevation file (2D to 3D)
> in
>> Qgis.
>> It created a new point (point3d) file but I can't se if it is in 3D.
> 
> How did you create this file ?

Answer: First r.to.vect (in QGIS) then v.drape (QGIS)
> 
>> but the:
>> v.delaunay input=point3d output=deltriang
> 
> I don't know what point3d is, and am not a triangulation expert, but I

> don't see how the output of r.to.vect is useful for triangulation, 
> unless you change resolution before r.to.vect...
> 
> 
>> Craches after a while in Qgis
> 
> Works in native wingrass.
> 
> 
>> in WinGRASS
>> the delaunay function completes (without any succeed- or error
> message).
> 
> How do you launch it ?
Answer: the same way as in QGIS => v.delaunay input=point3d
output=deltriang
> 
>> But when I'm trying to view the layer, I'm getting the following
>> message:
>> "coor files of vector deltriang is larger than it should be (9287051 
>> bytes excess)"
>> and
>> "Cannot display areas, topology not availible"
> 
> Try running v.build on the file.
> 
> Moritz
> 



More information about the grass-user mailing list