Hi,
Multicore is accessible for the rendering. Some algorithms use OpenGL. I
guess some multiprocessing could be accessed when writing a python plugin. Not
sure about this last one.
Nicolas Cadieux
https://gitlab.com/njacadieux
> Le 18 mai 2021 à 19:26, Grant Boxer a écrit :
>
> I have
On Wed, 19 May 2021 at 08:26, Grant Boxer wrote:
>
> I have had a query from a user - does QGIS uses multi cores during
> processing?
It depends on the particular algorithm you're running, but generally
they will only use a single core.
Nyall
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I have had a query from a user - does QGIS uses multi cores during
processing?
Cheers Grant
Perth Western Australia
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Thank you vey much Richard, this will be usefull for sure.
Guillermo D'Angelo
Departamento de Geografía
DESyTC - DINTAD - MIDES
(+598) 240 0 0302 int. 3151
De: "Richard Duivenvoorde"
Para: "Guillermo D'angelo" , "qgis-user"
Enviados: Martes, 18 de Mayo 2021 16:01:15
Asunto: Re:
On 5/18/21 8:27 PM, Guillermo D'Angelo wrote:
> Hello list.
> Is it possible to load a raster from a Web Coverage Service through PyQGIS?
> I'm struggling with this and can't find a working code snippet on the web.
Hi, I wrote some about WCS requests for our national service here:
urce
tables, the data of the point layer is not modified and another time i need
to create the point layer for update it.
So , exist any option for activate the synchronize?
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Hello list.
Is it possible to load a raster from a Web Coverage Service through PyQGIS?
I'm struggling with this and can't find a working code snippet on the web.
Thanks in advance.
Guillermo D'Angelo
Departamento de Geografía
División de Estudios Sociales y Trabajo de Campo
Hey!
The version QGIS 3.18.3 version is not available on macOS although on the site
is advertised and if you open QGIS is telling you that there is a new version.
However, when you download you get the 3.18.
I try to answer without attached images (size limit)...
values are correct. I made first a virtual field in which I have "N" or "R" in
the "Colore" filed through an expression and it works. My problem is the colour
now.
I tried also with 'Colore' instead of "Colore", but nothing change.
Giacomo Fontanelli-2 wrote
> rasterLayer = QgsRasterLayer("home/test/prova.tif", "raster")
>
>> > "EXPRESSION": "10 * ( log10 ( rasterLayer@1 ) )",
Ciao Giacomo,
il nome del raster nell'espressione è errato. Nell'espressione non devi
usare il nome della variabile a cui è stato
Worked like a charm! and FAST! Thanks all!
Don't understand what the overhead is with QGIS and why it is so much slower
though but on to other challenges I guess.
--
Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html
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Hi!
How about just execute some SQL in an algorithm or model since you have the
data in Postgis? And do the spatial join directly in the database. Like (not
tested):
UPDATE polygonlayer p
SET p.field = pt.field
FROM pointlayer pt
WHERE st_within(pt.geom,p.geom);
Karl-Magnus Jönsson
Från:
I can appreciate that but it forces to create another layer/file I think.
I really don't want to have to re-import my entire table back into postgis
just to get this one column.
On Mon, May 17, 2021, 10:29 PM Nyall Dawson wrote:
> On Tue, 18 May 2021 at 11:59, Ryan Peel wrote:
> >
> > I have
Ciao Andrea
ho risolto seguendo il tuo consiglio, ovvero la sintassi giusta per il
parametro expression è
"EXPRESSION": "10 * ( log10 ( home/test/prova.tif@1 ) )",
grazie mille
Giacomo
Il giorno mar 18 mag 2021 alle ore 11:24 Andrea Giudiceandrea <
andreaer...@libero.it> ha scritto:
>
Ciao Andrea
il file in ingresso rasterLayer equivale a
rasterLayer = QgsRasterLayer("home/test/prova.tif", "raster")
e il file outPathFile è "home/test/out.tif"
ho provato anche a cambiare formula ma il risultato non cambia
grazie
Il giorno lun 17 mag 2021 alle ore 20:56 Andrea
I add google road map layer to canvas, but it seem load incorrect CRS?
QgsDataSourceUri ds;
ds.setParam("type", "xyz");
ds.setParam("url", QString("
https://mt1.google.com/vt/lyrs=m={x}={y}={z};));
QgsRasterLayer* layer = new QgsRasterLayer(ds.encodedUri(), "my map",
"wms");
QList layers =
get_feature() will get you the feature.Your current expression will get you
the first feature from 'V_TB_ATTIVITA_PT_NR' layer where the "Colore" value
is 'N'. - I don't think that is what you want. You need to query for a
feature from another layer that relates to the current feature, (using a
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