[GRASS-user] <Q>animal's distribution and the altitude

[Michael Barton]

On Dec 24, 2008, at 10:00 AM, <grass-user-request at lists.osgeo.org> <grass-user-request at lists.osgeo.org 
 > wrote:

> Date: Wed, 24 Dec 2008 08:41:32 +0900
> From: SGW00412 at nifty.com
> Subject: [GRASS-user] <Q>animal's distribution and the altitude
> To: grass-user at lists.osgeo.org
> Message-ID: <JP200812240841323.4027203 at nifty.com>
> Content-Type: text/plain; charset=ISO-2022-JP
>
> Dear grass users:
>
> I am a beginner of grass. I wish to express my gratitude for past  
> advices.
>
> I am researching relation between animal's distribution and the  
> altitude.
>
> Animal's distribution is composed of the point vector data. In a  
> word, this is a
> location information.
>
> The altitude data was converted from DEM into the raster data.
>
> The rastere data was divided into ten categories by using reclass  
> function.
>
> I want to summarize the frequency distribution of the animal above  
> altitude
> level.
>
> However, I do not know the analysis of grass command.
>
> I'll try to itersect with the point vector data and mesh polygon  
> converted form
> raster data.
>
> Will this method be appropriate ?

Add a column for elevation to your vector point attribute table. Use  
r.what.rast to put the elevation (or elevation class) directly into  
the elevation field of your points table. No need to convert raster to  
vector.

Michael