[GRASSLIST:7978] Re: v.out.ascii - vertices in a line

[Dylan Beaudette]

Maciek,

Sure, it was something like this:

...
utm_easting utm_northing
utm_easting utm_northing
utm_easting utm_northing
utm_easting utm_northing
...

just a simple list of x,y coordinate pairs.

Hope that helps,

Dylan

On Thursday 18 August 2005 01:31 pm, Maciek Sieczka wrote:
> Dylan
>
> Thanks! I'm not familiar with the GPS points data format, so could I ask
> you to post a few lines of your input and output for me to understand your
> sript better?
>
> Maciek
>
> ----- Original Message -----
> From: "Dylan Beaudette" <dylan at iici.no-ip.org>
> To: "Maciek Sieczka" <werchowyna at epf.pl>
> Cc: <GRASSLIST at baylor.edu>
> Sent: Wednesday, August 17, 2005 11:25 PM
> Subject: [GRASSLIST:7961] Re: v.out.ascii - vertices in a line
>
> > On Wednesday 17 August 2005 12:27 pm, Maciek Sieczka wrote:
> >> Hi
> >>
> >> I need to craft an ascii vector file, where the first and last vertex
> >> are given in one line, like in this example:
> >>
> >> 885.824 634.545 874.954 452.858
> >> 874.954 452.858 910.670 327.075
> >> 910.670 327.075 1013.160 219.927
> >>
> >> instead of what v.out.ascii  format=standard gives:
> >>
> >> 885.824 634.545
> >> 874.954 452.858
> >> 910.670 327.075
> >> 1013.160 219.927
> >>
> >> How can I do it? Please help me.
> >>
> >> Maciek
> >
> > my first thought is awk ...
> >
> > v.out.ascii | awk '{script here}'
> >
> > i have done the opposite -- convert x,y into line segment data from GPS
> > points.
> > here is how i did it (rather hackish...) walk1.raw contained x,y pairs.
> >
> > --------------------
> > 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
> > -----------
> >
> > then imported walk1.ascii with v.in.ascii
> >
> >
> > also, Hamish  once suggested looking at the v.in.garmin.sh script for
> > ideas...
> >
> > --
> > Dylan Beaudette
> > Soils and Biogeochemistry Graduate Group
> > University of California at Davis
> > 530.754.7341

-- 
Dylan Beaudette
Soils and Biogeochemistry Graduate Group
University of California at Davis
530.754.7341