I am wondering if anyone has any ideas of how I can recover a project that is
stored in a PostGIS database. When I try to open the project it loads
indefinitely (I shut it off after a few hours) for a project that used to load
in a minute or so. There is no network activity to suggest that the
Hi Neil,
I think that means that you neglected to fill in a value for a required field,
the 35th feature is the one causing the problem. If you open the attribute
table and sort the column that you normally put values into you should be able
to find features without values.
-Thayer
On
a very good day!
Best,Francesca
Il giorno ven 18 ago 2023 alle ore 22:29 Thayer Young via QGIS-User
ha scritto:
Hi Francesca,
This is the same error as you had before, just for a different python module,
mgwr this time. The "Spatial Analysis Toolbox" page in the Plugin Man
Hi Michael,
Not sure what the current state of the art is in opensource AI for building
recognition from aerial imagery is, but I think you can at least get started
with Orfeo Toolbox, and or TensorFlow. Orfeo can be used in QGIS but you have
to download and install it separately.As you are a
Thank you both for this question and answer! This is tremendous! QGIS for ARM
Macs, and with point cloud tools!
-Thayer
> On Monday, August 21, 2023 at 03:00:31 PM EDT,
qgis-user-requ...@lists.osgeo.org wrote:
> From: Saber Razmjooei
> To: dworm...@post.harvard.edu
> Cc:
f9d-5058c3e51...@libero.it>
Content-Type: text/plain; charset=UTF-8; format=flowed
> Thayer Young via QGIS-User Fri, 18 Aug 2023 13:28:49 -0700
> this means that geopandas is not installed. (It is installed in Lima not
> Firenze.)
Hi Thayer,
it seems to me the Python module "geo
.
> I think I'm still missing a piece, I'm not so familiar with the python
> environment as you can assume.
>
> These are the steps I followed:
>
> [image: image.png]
> --->
> [image: image.png]
> Then I clicked on "python3.dll", which downloaded the file I tried to
Does the older PDAL, 2.3.0 in the MacOS binaries explain why the new point
cloud processing algorithms are not available in Lima 3.32.1? The Windows .msi
installer for 3.32.1 (PDAL 2.5.5) does have the algorithms and they work. Is it
correct to say the new point cloud algorithms are a wrapper
in for your time and any other inputs you may
have!Francesca
Il giorno ven 11 ago 2023 alle ore 19:20 Thayer Young via QGIS-User
ha scritto:
Hi Francesca,
If you don't know how to install Geopandas, I would like to add to what Paolo
said. Geopandas needs to be installed in the python that QGI
Hi Francesca,
If you don't know how to install Geopandas, I would like to add to what Paolo
said. Geopandas needs to be installed in the python that QGIS is using.You can
check the location of the python installation by going to the overall
preferences for QGIS (command comma on a Mac,
Hi Enrique,
In the OGC standard the start and end points of a simple polygon will be the
same point. So the azimuth will be 0. For a polygon containing rings it will
probably be the start point of the outer boundary and the end point of the last
ring, etc.. None of those is not going to be
nd not the side-tools like
gdal/ogr , grass etc.
Kind regards,
Gert-Jan
On 20-6-2023 15:29, Thayer Young via QGIS-User wrote:
> I am wondering if someone can please recommend the installation for
> Windows 10 that has the lowest barrier to success? I need to make a
> recommendat
I am wondering if someone can please recommend the installation for Windows 10
that has the lowest barrier to success? I need to make a recommendation to a
client on how to install it on Windows. I had trouble a month or so ago with
the OSGEO4W installer recently saying that I don't have the
Hi Spaska,
Have you tried the Debugging/Development Tools panel? to see if you can get
more of the information you are looking for? You also will probably want to use
a better IDE than the Python Console, I have heard good things about the
IPython plugin for QGIS.
If you have specific
This sounds like a question for the Mapserver list:
https://www.mapserver.org/community/lists.htmlIf this error is indeed from
QGIS, please give more detail about what you did.
-Thayer
On Tuesday, April 18, 2023 at 03:00:51 PM EDT,
qgis-user-requ...@lists.osgeo.org wrote:
From: Boubacar
Hi Paul,
In your question you ask about how to display background shields for road
numbers. I answered this question recently
here:https://www.mail-archive.com/qgis-user@lists.osgeo.org/msg52139.html
>From Alexandre Neto's answer to the same question, the documentation page for
>label
Hi Dario,
In the QGIS 'Preferences' under 'Map Tools' at the top of the window 'Identify'
you can set the 'Search radius for identifying features and displaying map
tips' the default is 2.00 mm.
In the 'Identify Results' panel you can also set the tool to 'Identify Features
by Radius', which
This GIS Stackexchange question and answer should help you:
https://gis.stackexchange.com/questions/312150/why-are-labels-and-looks-different-between-print-layout-and-map-canvas-at-same-s
-Thayer
On Thursday, April 6, 2023 at 11:40:51 AM EDT, Michael Raymond
wrote:
Thank you, I am
Hi Mike,
Firstly I would say that you should seriously think about updating your QGIS,
as 2.18.28 is very old. The current long term release version is 3.28.5. QGIS 3
has many improvements over 2, and has been in development for long enough that
the bugs are mostly worked out. I can not
Hi Adam,
I should have said to activate it from the "View" menu, by clicking on "Show
Map Tips" there, I did find that the first time I tried with the icon it did
not seem to work, but when I clicked on it in the "View" menu it did start
working, and after that I was able to toggle it on and
Hi Adam
Make sure you have the layer selected in the table of contents and hover over
the feature for several seconds (e.g. 2 or 3). When I say hover, I mean do not
move the pointer. Make sure that there is a check mark by "Show Map Tips" in
the "View" top menu.
You might want to try
Hi Mike,
Download an SVG (scalable vector graphic file) of each shield from Wikipedia
and then set in the Labels tab of the Layer Styling panel set the text to your
road's name as you like, then in the Background subtab (looks like a US
interstate shield) check "Draw background", set shape
Hi Mike,
1:20 will fit a city, or a small county, but not all of WV. I think your
map is much larger than the page you are fitting it to.I recommend:1) delete
the map.
You will probably see a lot of grey with a small white box. The white box is
what gets printed. Note that by default
Hi Mike,
Try the Project menu, "New Print Layout" should be 4th from the bottom. You can
also use the control-p or command-p keyboard combination.
-Thayer
On Monday, March 20, 2023 at 03:00:41 PM EDT,
qgis-user-requ...@lists.osgeo.org wrote:
Date: Mon, 20 Mar 2023 11:45:25 -0700
From:
Hi Dennis,
Chris gave some good suggestions. If you are only concerned with the geometry,
you can try these suggestions. First, make sure that you have a spatial index
on the layer. Second I think you want to dissolve the polygons, not union them.
You can also try using the Subdivide
Hi Assil,
To save yourself from having to click away all of the error popups, you should
always click the "Test Connection" button below the authentication section when
you are creating a new connection.
If Hannes' answer does not solve your problem, it would be helpful if you send
the full
Hi Andrea,
I have not upgraded to 13 yet, but on 12.6 my experience is the same as John
Layt's, with no requirement for holding down Option.
I would add however, that I always have to launch QGIS twice after a fresh
install. The first can be a double click, right click or command-O from
Hi Fabian,
Assuming 2 things, first that you lines have a unique ID field, and second that
you are not concerned with network connectivity: You can use the "Join
Attributes by Nearest" tool. Set your points to input layer1 and your lines to
layer 2. For the "Layer 2 fields to copy" choose the
Thanks again Dirk for pointing out this bug. I submitted the report and copied
Alessandro. Happy mapping!
https://github.com/qgis/QGIS/issues/50841
-Thayer
On Wednesday, November 9, 2022 at 12:42:30 AM EST,
dirk.pisp...@stadt-koeln.de wrote:
Hi Thayer,
sorry, I’m very busy
Hi Dirk,
I have not seen a bug report for this yet. Would you like me to issue one?
I was able to reproduce that the provider for views of raster tables did work
in 3.10 but stopped working by 3.14.
-Thayer
On Friday, November 4, 2022 at 08:06:48 AM EDT, Alessandro Pasotti
wrote:
On
Hi Magnus,
This is the correct place for asking your questions.
If you have a unique identifier you can join your altered Excel file to your
original geometry file. From the Layer Properties of the layer with geometry
choose "Joins" and click the green plus sign in the bottom left. Then choose
Hi Dirk,
I have looked into this and found no easy solution. As you have noticed there
is no "Provider Feature Filter" in the Source tab of the layer properties for a
raster layer. The next obvious path would be to write a SELECT statement in an
SQL Window in the Database Manager and "Load as
e email id of the developer. By any chance, if you have
can you please provide me. I will write to him about the issue that I am
addressing with GTFS loader.
Regards.
On Tue, Oct 25, 2022 at 11:49 AM Thayer Young via Qgis-user
wrote:
This appears to be an issue that others are having with this p
This appears to be an issue that others are having with this plugin also:
https://github.com/ctu-fgis/2020-b-qgis-gtfs-plugin/issues/24
I think your best approach will be to contact the plugin developer. As it is
probably not a problem with the QGIS code.
I believe that GTFS is xml based so you
:20:32 PM EDT, Richard Greenwood
wrote:
On Fri, Aug 5, 2022 at 1:17 PM Thayer Young via Qgis-user
wrote:
Hi Matt,
A good strategy for finding stuff in QGIS, in addition to the documentation:
There is a search bar for stuff listed in the menus at the top of the user
interface
Hi Matt,
A good strategy for finding stuff in QGIS, in addition to the documentation:
There is a search bar for stuff listed in the menus at the top of the user
interface. It is the first listing in the Help menu at the top right. I know it
works in MacOS.
For things that are not in the top
Hi Klaus and Patrick,
With respect to 'Snap to grid', I would like to chime in that the grid is
usually meant to be quite fine. For example, on a scale smaller than meter or a
foot. In the case of the 'Simplify' tool, set to 'Snap to grid', this is
controlled by the 'Tolerance', you will
Sorry I meant to say that 'Service area (from layer)' is what you want, but
that you may need to select points individually if your service areas
overlap.'Service area from point' requires you to enter the coordinates
manually for the points.
-Thayer
On Monday, June 27, 2022 at 04:19:41
Hi Krishna,
Chris was correct about 'Service area (from point)' being the tool you want. I
think your problem is that the travel cost is measured in meters not feet.
I will add some detail to his answer. First you should set the 'Path type to
calculate' to shortest, and the 'travel cost' to be
Dear QGIS-user subscribers,
My sincerest apologies for messing up (again), and sending the entire message
digest in my answer.
-Thayer
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Rasters sometimes have more than one file with the same name for each raster.
A good rule of thumb is to open the largest file. The documentation for adding
rasters to a project will help you with the procedure. The link below is to the
current Long Term Release documentation 3.22. 3.8 is
yle to all layers in
the group.
On Tue, Jun 21, 2022 at 3:22 PM Thayer Young via Qgis-user
wrote:
A method that is a little easier than saving out the style file, is that you
can just right click on the layer that you styled, then third from the bottom
in the menu select: Styles: Copy
A method that is a little easier than saving out the style file, is that you
can just right click on the layer that you styled, then third from the bottom
in the menu select: Styles: Copy Style: All Style CategoriesAnd then you can
paste the style to the rest of your layers using: Styles:
Hi Byron,
I recommend making one large polygon and then using the Split Features tool
to cut individual polygons out of the original polygon. Just remember to select
the polygon that you want to split before using the tool, and start and finish
the split line on the outside of the polygon.
Hi Yamen,
It's hard to tell without more information about your table definition and how
you are connecting to the database.
You may want to try making a view, it looks like you need a unique ID and
correctly formulated geometry column:
https://answerbun.com/
-Thayer
On Wednesday, June
Hi Mike,
The GPX format has a short list of allowed field names . So either you have to
convert all your fields to fit that list, or you can use gpx extensions and it
will allow you to use your designated names. Depending on where you want to
transfer the GPX file to, your device may not be
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
Excellent. Happy analyzing.
-T
On Friday, May 20, 2022, 02:38:34 PM EDT, Walter Alvarez
wrote:
Thank you, Thayer! That indeed was part of the problem, but I believe another
problem was that the files were saved in iCloud. When I took them out of
iCloud and looked for the hidden
Hi Walter,
Sometimes after entering parameters the tool window drops behind the main QGIS
window. Try either moving the QGIS window out of the way or right click the
QGIS icon in the Dock and select "Show All Windows" and see if you can find it
again. Hope this helps.
-Thayer
On Friday,
Hi Cipanul ,
You can follow the procedure in the first answer to this GIS Stack Exchange
question:https://gis.stackexchange.com/questions/381114/displaying-vertex-coordinates-of-polygon-or-line-without-creating-new-layerIn
step three just use @geometry_part_num as the expression (the full
Hi Graeme,
I think this may be a bug, it appears that this worked at some point,
https://gis.stackexchange.com/questions/222625/qgis-relation-aggregate-how-does-this-work#238265
The QEP referenced above is still open:
QEP 59: Aggregate functions for QGIS expressions · Issue #59 ·
Hi Rayfson,
You will need an x86 emulator to run QGIS on ARM. This article says you need to
upgrade to Windows 11 to get the Microsoft
emulator:https://www.pcmag.com/news/microsofts-x86-64-bit-emulator-for-arm-devices-is-exclusive-to-windows
FYI, Rosetta2 is the MacOS ARM emulator, I can verify
I would bet the DEM is in "UTM", probably either zone 11N or 12N for northern
hemisphere, you can check the linked image to figure out which one:
https://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system#/media/File:Utm-zones-USA.svg
Try using the Assign Projection tool
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