Hello,
I would need some help with the handling of vector data. I figured already out (more or less) how to use v.in.ascii but I don't understand how I can connect single points to lines (polygones) and areas? Do I have to use a external drawing software which can export shp or is this directly possible in grass. Is a formatting of these vectors possible (line style, filling,...)?
Thanks
Wolfgang
Hello Wolfgang,
I was curious whether you received an answer to you question. I have the same question, and am interested in the answer, too.
Dave
On Mar 1, 2006, at 8:22 AM, Wolfgang Zillig wrote:
Hello,
I would need some help with the handling of vector data. I figured already out (more or less) how to use v.in.ascii but I don't understand how I can connect single points to lines (polygones) and areas? Do I have to use a external drawing software which can export shp or is this directly possible in grass. Is a formatting of these vectors possible (line style, filling,...)?
Thanks
Wolfgang
Hello Dave,
I did not get an answer jet! Probably it is simply no possible. But as this is not urgent for me, I have some time to think about an solution or possible alternatives.
Wolfgang
Dave Kindem schrieb:
Hello Wolfgang,
I was curious whether you received an answer to you question. I have the same question, and am interested in the answer, too.
Dave
On Mar 1, 2006, at 8:22 AM, Wolfgang Zillig wrote:
Hello,
I would need some help with the handling of vector data. I figured already out (more or less) how to use v.in.ascii but I don't understand how I can connect single points to lines (polygones) and areas? Do I have to use a external drawing software which can export shp or is this directly possible in grass. Is a formatting of these vectors possible (line style, filling,...)?
Thanks
Wolfgang
On Friday 03 March 2006 08:39 am, Wolfgang Zillig wrote:
Hello Dave,
I did not get an answer jet! Probably it is simply no possible. But as
this is not urgent for me, I have some time to think about an solution
or possible alternatives.Wolfgang
Dave Kindem schrieb:
> Hello Wolfgang,
>
> I was curious whether you received an answer to you question. I have
> the same question, and am interested in the answer, too.
>
> Dave
>
> On Mar 1, 2006, at 8:22 AM, Wolfgang Zillig wrote:
>> Hello,
>>
>> I would need some help with the handling of vector data. I figured
>> already out (more or less) how to use v.in.ascii but I don't
>> understand how I can connect single points to lines (polygones) and
>> areas? Do I have to use a external drawing software which can export
>> shp or is this directly possible in grass. Is a formatting of these
>> vectors possible (line style, filling,...)?
>>
>> Thanks
>>
>> Wolfgang
I have used something like this to convert GPS track data into lines:
awk '
BEGIN{print "VERTI:"; n = 0}
{
vertex = $6" "$7
if( (n > 0 && n < 3) ) {print "L 2\n"old_vertex"\n"vertex}
else if(n >2 ) {print "L 2\n"old_vertex"\n"vertex}
old_vertex = vertex
n++
}' walk1.raw > walk1.ascii
where my x and y data are stored in columns 6 and 7 of the input file.
use v.in.ascii format=standard to import
cheers,
--
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341