[GRASS-user] Add-ons of SVN; install through SVN or UbuntuGIS?

[Patrick Schirmer]

v.vect.stats fits perfect to what I was looking for. Thanks a lot! Am 
using the GRASS-Version 6.4 coming out of UbuntuGIS(unstable) and didn't 
know about additional tools in the SVN that could be implemented. I 
guess the repository is not the latest version of GRASS, though.
That leads to a more general question installation practice for GRASS on 
Ubuntu. It seemed the simpliest way to install it though the 
UbuntuGIS-repository (apt-get/synaptics). An installation through the 
svn-branch would be more up-to-date, but this becomes a local 
installation and compatibility with the rest of my System would not be 
checked (please correct me if I am wrong here). What is your experience 
on this and what would be best-practice for a non-developer? Maybe 
somebody of the developers also knows how often the UbuntuGIS(unstable) 
repository is being updated concerning GRASS. This seems to be a 
relevant question for people who want to start with GRASS, as I just did.

Thanks and kind regards,

Patrick




On 27.08.2010 18:01, Markus Metz wrote:
> Patrick_schirmer wrote:
>    
>> Dear all,
>>
>> Unfortunately I am not really used to work with GRASS so this might be a
>> rookie-question. But I am not able to solve it alone, don't find any hint on
>> the net and thus will need your help:
>> I got a map of polygones and a map of points. My aim is to sum up the
>> attributes of a defined column in the point-map to the polygone where they
>> are lying in. So what I am looking for is a function saying 'spatial join'
>> of polygons and points with the options 'contains' by using the function
>> 'sum'. The only thing I can find will be v.what.vect. which will allow to
>> give the point the value of the polygone, but not the other way round.
>>
>> Is there a simple solution to that question within GRASS6.4? (I think QGIS
>> is having this option, but I would like to solve it within GRASS6.4).
>>
>>      
> Try v.vect.stats from grass-addons, this would do the job in one step,
> optionally updating polygon attributes with statistics calculated on
> point attributes per polygon.
>
> svn checkout https://svn.osgeo.org/grass/grass-addons/vector/v.vect.stats
>
> Markus M
>
>