[GRASS-dev] new addon: v.what.rast.multi

Veronica Andreo veroandreo at gmail.com
Tue May 9 05:37:16 PDT 2017

Hello Pierre,

Thanks for this new add-on! Comes on time for me :)

I'm testing it and I have observed something odd.
I'm querying integer maps but v.what.rast.multi gives me float values. I
run v.what.rast and I get the proper integer values. Does it have anything
to do with what Paulo just pointed out?

Thanks much!

2017-05-09 9:30 GMT+02:00 Paulo van Breugel <p.vanbreugel at gmail.com>:

> Hi Pierre,
> I have one question about the code. In lines 126-130 you create an object
> 'fl', which you subsequently do not seem to use. Perhaps in line 150 it
> should be flags=fl ?
> Something else, last year I wrote an addon r.what.rastlabel (
> https://github.com/ecodiv/GRASS-scripts/tree/master/v.what.rastlabel)
> which can be used to (multiple) raster values and labels. Optionally, it
> can also upload raster values only, like your addon (that part uses the
> same approach you use). I have not yet added it to the grass addon
> repository. I might do that later, at which point we can also see if it
> makes sense to merge the two.
> Cheers,
> Paulo
> On 5/9/17 8:36 AM, Luca Delucchi wrote:
>> On 8 May 2017 at 07:16, Pierre Roudier <pierre.roudier at gmail.com> wrote:
>>> Hi all,
>>> Hi,
>> FYI I just submitted my (first!) GRASS add-on, called v.what.rast.multi
>>> [0].
>>> It is a super simple Python wrapper around v.what.rast, and allows to
>>> query
>>> a suite of rasters in one go:
>>> thanks, it is useful
>> to improve a little bit, you add multiprocessing to the module, for
>> example a process for each raster
> Interesting, could help to speed up with large point data layers.
>> Cheers,
>>> Pierre
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