Once you have your centroids you can use the Lat Lon Tools plugin and run
the "Point Layer to Fields" algorithm to extract the geometry and add it to
one or two attribute fields. You can also specify the CRS that you want it
in and what format (ie. decimal degrees, DMS and a lot of other formats)
Hi Francesca,
Assuming that your layer has a geographic coordinate system like 4326. And you
have found your centroids already:
Use the field calculator to add a new or virtual field with a numeric data
type, e.g. double, and name it something like "lat". Then in the expression
area enter the
That is "select by location" and it lives either as the yellow square
with the blue pin in the first row of icons, or search its address in
the toolbox.
Am 24.05.22 um 14:29 schrieb Yamen Tekaji via Qgis-user:
Hello all,
I need to do Spatial Filtering for my data. meaning, to select a
Hello all,
I need to do Spatial Filtering for my data. meaning, to select a concession
(polygon) and to ask QGIS to find all wells (points) that exist (or does
not exist) in this polygon.
is this possible? what is the tool name?
Thanks
Yamen
___
I tested against:
PostgreSQL 11.5 on x86_64-alpine-linux-musl, compiled by gcc (Alpine 8.3.0)
8.3.0, 64-bit
Postgis:
2.5 USE_GEOS=1 USE_PROJ=1 USE_STATS=1
Karl-Magnus Jönsson
Från: Andreas Neumann
Skickat: den 24 maj 2022 12:22
Till: Karl Magnus Jönsson
Kopia: QGIS User List
Ämne: Re: Sv:
Easiest way I can think of doing what you want is to create a VRT of the three
raster’s.
Raster ==> Miscellaneous ==> Build Virtual Raster
When you do this set the Nodata value to 0 (the default transparent value form
the Georeference Tool)
This should create a merged raster for you and allow
Hello,
I georeferenced three maps ... all good, quite easy by using points from map
canvas. When my map was ready it has a black border (image 1). This is solved
by ~Custom transparency options~, and a black border disappears. But this
solution is just temporarily, because if I close and reopen
Hi Karl-Magnus,
Thank you for your confirmation.
It must be something weird about 3D detection from QGIS for Postgis
layers. I tested with other 3D layers and they work fine, but the layer
that fails to work with Z-Values is from a much older Postgis-DB.
Maybe it would work fine if we
Hi!
It seems to work for me in 3.22.5 with Postgis PolygonZ. Can’t remember that
I’ve done any custom settings for that.
[cid:image001.png@01D86F60.2F0463B0]
Karl-Magnus Jönsson
Från: Qgis-user För Andreas Neumann via
Qgis-user
Skickat: den 24 maj 2022 10:53
Till: QGIS User List
Ämne:
Hi,
We have a a Postgis PolygonZ data set an want to query the third
dimension of the closest vertex. According to my users, this used to
work fine in older QGIS versions, but now we can only see the x/y values
and not z-values anymore.
I just tested it on QGIS 3.22 (LTR) and can conform
Greeting!
How old is the Bing Arial photo's on the latest version and how frequent it is
update?
Thanks in advance.
Sabelo
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Hello group,
I would like to ask you what is in your opinion the best way to identify
the lat-lon attributes of derived centroids in order to export them to an
extra-QGis database where corresponding coordinates should match with
identified locations.
So far I've tried with Geocoding and MMQGIS
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