Re: [GRASS-user] Elevation profile from intersecting shapefiles‏

[Dylan Beaudette]

Dude- It is saturday night. Your request is for a fairly simple
operation, but there are several steps.

Some hints:

1. convert your contours into a DEM:
v.surf.rst

2. sample the elevation model along your line segments:
v.to.db
v.drape

you may need to densify the line segments-- i.e. add more vertices
along each line segment. if you need to do this, run v.segment before
either of the above two commands.

Also check the mailing list archives.

Cheers,

Dylan


On Sat, Nov 29, 2008 at 10:21 PM, georgew <gws293 at hotmail.com> wrote:
>
> What, no takers? Just a Yes or No will be already of great help to me,
> anything more, like some hint on a possible solution would be cream on top.
> Thanks all the same for reading this.
> George
>
>
>
> georgew wrote:
>>
>> Hi, I am totally new to GRASS and overwhelmed by its scope and not sure
>> whether the following is possible:
>> I have a set of topographic maps in shapefile format containing contours
>> and walking tracks. The track data does not include elevation (only lat.
>> and long.), but the contour lines do include elevation. Is it possible
>> (and how?) to create an elevation profile for the length of the walking
>> track using the intersecting points between the track and the contour
>> lines to obtain the elevation values?
>> Many thanks for any assistance you can give me.
>> George
>>
>
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