Re: [Qgis-user] Does QGIS support online/web/Google fonts ?

[Sebastian Gutwein]

Recently I noticed that Klas Karlsson was using google.com fonts in his
html titles. For example the "Extra Fancy Title" on QGIS HUB
qgis-hub.fast-page.org/layouts.php
[image: image.png]

On Thu, Oct 22, 2020 at 9:42 AM Charles Dixon-Paver 
wrote:

> In my tests QGIS uses installed fonts but you will have to distribute them
> yourself.
>
> I think it might be beneficial for the QGIS to read fonts made available
> with the QGIS Resource Sharing Plugin though, so a feature request may be
> in order (I don't think this is currently supported, but someone else might
> have an idea).
>
> On Thu, 22 Oct 2020 at 15:12, Raymond Nijssen 
> wrote:
>
>> Hi Lars,
>>
>> Not sure if I completely understand your question. I think QGIS supports
>> any font installed in your OS. At least it works that way for me (Ubuntu
>> 18.04).
>>
>> Met vriendelijke groet,
>> Raymond
>>
>>
>> On 22-10-2020 15:05, Lars I. Nielsen, LIFA A/S wrote:
>> > Hi list.
>> >
>> > I’ve googled like a madman, and haven’t found anything to suggest, that
>> > QGIS supports online/downloadable (Google?) fonts ?
>> >
>> > So I assume that it doesn’t, but wanted to hear it from you guys before
>> > dismissing the idea.
>> >
>> > We’re trying to maintain multiple setups including QGIS users, and such
>> > a feature would be very nice.
>> >
>> > Med venlig hilsen
>> >
>> > Lars I. Nielsen, LIFA A/S
>> > GIS-kons., FME+Python Certified Professional
>> > Geoinformatik
>> >
>> > *T*
>> >
>> >
>> >
>> > 6313 6800
>> >
>> >
>> >
>> > *@*
>> >
>> >
>> >
>> > l...@lifa.dk
>> >
>> > *D*
>> >
>> >
>> >
>> > 6313 6849
>> >
>> >
>> >
>> > *W*
>> >
>> >
>> >
>> > www.lifa.dk 
>> >
>> > *M*
>> >
>> >
>> >
>> > *CVR*
>> >
>> >
>> >
>> > 20937289
>> >
>> >
>> > 
>> > Følg os på LinkedIn og læs de seneste nyheder fra LIFA A/S
>> >
>> >
>> > ___
>> > Qgis-user mailing list
>> > Qgis-user@lists.osgeo.org
>> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> >
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] How to add a base map to my project?

[Sebastian Gutwein]

Maria,
There is an Open Street Map included in your installation you can add it
through Layer>Add Layer>XYZ Layer>Open Street Map> ADD.
Or by double clicking in the browser on the OpenStreetMap in the XYZ Tiles
Section.
[image: image.png]
Additionally there are other basemaps available through the
QuickMapServices plugin.
Instructions here:
https://opengislab.com/blog/2018/4/15/add-basemaps-in-qgis-30
Hope that helps.
-Bas

On Fri, Oct 23, 2020 at 9:22 AM Maria Joao Sacadura <
mariajoaosacad...@gmail.com> wrote:

> Hi
> I have Qgis 3.6 and need to add a base map to a project. How do I do it?
> Thanks
> *Maria João Sacadura*
> *Geologist & MSc in Environmental M**anagement*
> *Teacher at Aljezur International School *
> *Manager at Biomediterrâneo - **Organic Prod**ucer*
>
> *___ *
> T: +351 916 485 333
> mariajoaosacad...@gmail.com
> Estrada Municipal Norteo, Caixa Postal nº 1025F
> 8650-452 Barão de S. Miguel
> Portugal
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] How to add a base map to my project?

[Sebastian Gutwein]

Maria I just realized that you said you were using QGIS 3.6 I am not sure
if the Open Street Map XYZ tile was preinstalled at that point you may have
to use the Quick Map Services plugin.


On Fri, Oct 23, 2020 at 9:40 AM Sebastian Gutwein  wrote:

> Maria,
> There is an Open Street Map included in your installation you can add it
> through Layer>Add Layer>XYZ Layer>Open Street Map> ADD.
> Or by double clicking in the browser on the OpenStreetMap in the XYZ Tiles
> Section.
> [image: image.png]
> Additionally there are other basemaps available through the
> QuickMapServices plugin.
> Instructions here:
> https://opengislab.com/blog/2018/4/15/add-basemaps-in-qgis-30
> Hope that helps.
> -Bas
>
> On Fri, Oct 23, 2020 at 9:22 AM Maria Joao Sacadura <
> mariajoaosacad...@gmail.com> wrote:
>
>> Hi
>> I have Qgis 3.6 and need to add a base map to a project. How do I do it?
>> Thanks
>> *Maria João Sacadura*
>> *Geologist & MSc in Environmental M**anagement*
>> *Teacher at Aljezur International School *
>> *Manager at Biomediterrâneo - **Organic Prod**ucer*
>>
>> *___ *
>> T: +351 916 485 333
>> mariajoaosacad...@gmail.com
>> Estrada Municipal Norteo, Caixa Postal nº 1025F
>> 8650-452 Barão de S. Miguel
>> Portugal
>>
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] How to add a base map to my project?

[Sebastian Gutwein]

Quick Map Services works for me in 3.14.16.


On Sat, Oct 24, 2020 at 11:45 AM Ben Hur Pintor  wrote:

> Hmmm. I use 3.14 and it still works for me. I don't use Google and Bing
> but the ones from *Search QMS (Web -> QuickMapServices -> Search QMS)* seem
> to work.
>
> https://imgur.com/a/1IpLrlF
>
> All the best,
> Ben Hur
> ---
> *Ben Hur S. Pintor*
> bnhr.xyz
> h...@bnhr.xyz
>
>
> open spatial & data solutions
>
>
> On Sat, Oct 24, 2020 at 5:43 PM Charles Dixon-Paver 
> wrote:
>
>> I thought you just had to get/ activate the "contributed pack", although
>> strictly speaking I think an API key is required for most of those services
>> for your utilisation of it to remain legally compliant with the service
>> provider ToS...
>>
>> https://imgur.com/a/C9ltQbR
>>
>>
>> On Sat, 24 Oct 2020 at 05:39,  wrote:
>>
>>> I thought Quick Map Services is deprecated. I just tried it in 3.10 and
>>> most services (eg, Google, Bing) are gone and OSM maps are watermarked API
>>> key required.
>>>
>>> On 10/23/2020 6:11 PM, Ben Hur Pintor wrote:
>>>
>>> Hi Maria,
>>>
>>> As previously mentioned, you can add basemaps to QGIS by adding them as
>>> XYZ tiles (in the Browser) or using the QuickMapServices plugin (
>>> https://plugins.qgis.org/plugins/quick_map_services/),
>>>
>>>
>>> ___
>>> Qgis-user mailing list
>>> Qgis-user@lists.osgeo.org
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] UNION OF FILE VECTORS (different geometry) and rasterize

[Sebastian Gutwein]

I often use the saga patching tool to overlay rasters.
http://www.saga-gis.org/saga_tool_doc/2.2.6/grid_tools_5.html
First you would need to rasterize each of your shape files and then use the
patching tool with whatever raster you want to end up on top as the patch
grid.


On Tue, Oct 27, 2020 at 4:57 AM Charles Dixon-Paver 
wrote:

> You have a couple of options available and what suits best might depend on
> our input data... But you could use the buffer tool to create a
> footprint of your line feature, or you can create multiple rasters and
> essentially "merge" them together with the raster calculator.
>
> On Tue, 27 Oct 2020 at 09:43, Azzurra Lentini 
> wrote:
>
>> Hi to all,  my aim is to obtain 1 raster file (an image) from 2 different
>> vector files (esri shape) that are of different geometry : one is
>> polygon geometry and the other is line geometry  (in the same area).
>> For example I have some buildings and streets (in two different vectors
>> with different geometry) and I would like to obtain a single raster file
>> (an image with buildings and street).
>> Is it possible and how? - normally if I need to rasterize a single shape
>> file I use saga rasterize, but in this case I don't know how to do
>> because I have 2 different shapes and with different geometry and also I
>> dont know how to do the union or merge of shapefiles with different
>> geometry (maybe creating a geopackage??).
>>
>> Every kind of suggestion is very welcome. Thanks A.L.
>>
>>
>> --
>> Lecturer GIS University "Roma Tre"
>> Consultant Environmental Risk Prevention and Hydrogeology
>> AZZURRA LENTINI
>> ++
>> Italy Mobile Tel.: **(39) 338 24 40 676
>> ++
>> SKYPE azzurrahydro
>> ++
>>
>> *azzurralent...@gmail.com *
>>
>> *azzurra.lent...@uniroma3.it  *
>> ++
>> *Par respect pour l'environnement,*
>>
>> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>>
>>
>>
>>
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Editing Joined Tables

[Sebastian Gutwein]

I have found that CSV layers are not editable but .xlsx layers are. I just
tried editing a joined field in 2 .xslx layers and it worked if I have
upsert on edit checked. QGIS 3.14.16

On Tue, Oct 27, 2020 at 5:02 AM Charles Dixon-Paver 
wrote:

> As far as I'm aware you cannot edit external flat file tables like csv as
> they are imported into a QGIS project in a read only state.
>
> I would try exporting those tables to a database table (like a geopackage
> table without geometry) and then performing the join to see if you get the
> desired result.
>
> On Tue, 27 Oct 2020 at 10:03, Springfield Harrison 
> wrote:
>
>> Hello All:
>>
>> Using version 3.10.10, I have joined two MS Excel files: Positions.csv
>> and catalogue.xls using a common field called Tag. This is a tree
>> inventory project.
>>
>> All is well except I cannot edit either table from within QGIS. I need
>> to create some new positions manually and generally update the tables
>> continuously.
>>
>> In the Join dialogue, I have selected Enable Editing but it has no effect.
>>
>> I feel that different file types or a different procedure may facilitate
>> this process but am exhausted from trying so many blind alleys.
>>
>> Is there a trick to being able to edit joined tables?
>>
>> Thanks very much . . . .
>>
>> -
>> Cheers, Springfield Harrison, British Columbia
>>
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] UNION OF FILE VECTORS (different geometry) and rasterize

[Sebastian Gutwein]

No problem. I hope it worked for you.

On Tue, Oct 27, 2020 at 3:01 PM Azzurra Lentini 
wrote:

>   Dear Sebastian  thanks a lot. Azzurra
>
> On Tue, 27 Oct 2020 at 16:32, Sebastian Gutwein  wrote:
>
>> I often use the saga patching tool to overlay rasters.
>> http://www.saga-gis.org/saga_tool_doc/2.2.6/grid_tools_5.html
>> First you would need to rasterize each of your shape files and then use
>> the patching tool with whatever raster you want to end up on top as the
>> patch grid.
>>
>>
>> On Tue, Oct 27, 2020 at 4:57 AM Charles Dixon-Paver 
>> wrote:
>>
>>> You have a couple of options available and what suits best might depend
>>> on our input data... But you could use the buffer tool to create a
>>> footprint of your line feature, or you can create multiple rasters and
>>> essentially "merge" them together with the raster calculator.
>>>
>>> On Tue, 27 Oct 2020 at 09:43, Azzurra Lentini 
>>> wrote:
>>>
>>>> Hi to all,  my aim is to obtain 1 raster file (an image) from 2
>>>> different vector files (esri shape) that are of different geometry :
>>>> one is polygon geometry and the other is line geometry  (in the same area).
>>>> For example I have some buildings and streets (in two different vectors
>>>> with different geometry) and I would like to obtain a single raster file
>>>> (an image with buildings and street).
>>>> Is it possible and how? - normally if I need to rasterize a single
>>>> shape file I use saga rasterize, but in this case I don't know how to
>>>> do because I have 2 different shapes and with different geometry and also I
>>>> dont know how to do the union or merge of shapefiles with different
>>>> geometry (maybe creating a geopackage??).
>>>>
>>>> Every kind of suggestion is very welcome. Thanks A.L.
>>>>
>>>>
>>>> --
>>>> Lecturer GIS University "Roma Tre"
>>>> Consultant Environmental Risk Prevention and Hydrogeology
>>>> AZZURRA LENTINI
>>>> ++
>>>> Italy Mobile Tel.: **(39) 338 24 40 676
>>>> ++
>>>> SKYPE azzurrahydro
>>>> ++
>>>>
>>>> *azzurralent...@gmail.com *
>>>>
>>>> *azzurra.lent...@uniroma3.it  *
>>>> ++
>>>> *Par respect pour l'environnement,*
>>>>
>>>> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> ___
>>>> Qgis-user mailing list
>>>> Qgis-user@lists.osgeo.org
>>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>
>>> ___
>>> Qgis-user mailing list
>>> Qgis-user@lists.osgeo.org
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>>
>
> --
> Lecturer GIS University "Roma Tre"
> Consultant Environmental Risk Prevention and Hydrogeology
> AZZURRA LENTINI
> ++
> Italy Mobile Tel.: **(39) 338 24 40 676
> ++
> SKYPE azzurrahydro
> ++
>
> *azzurralent...@gmail.com *
>
> *azzurra.lent...@uniroma3.it  *
> ++
> *Par respect pour l'environnement,*
>
> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>
>
>
>
>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Saving project to geopackage

[Sebastian Gutwein]

António,
I agree that this is a place where there could be improved. But as it seems
to improve everyday I have hope it won't be too long.
The easiest and safest way I have found is to put all of your layers and
project file in the same folder and zip it.

Have you tried the package layers tool in processing?
It will take all of the layers you select and put them in a geopackage.
There is the option to include the style. For your purposes the style will
ultimately be controlled by the .qgz project file but it would be helpful
during the process.
I believe it only works on vector layers so you would have to save raster
layers using the right click > export > save as > geopackage. Unless
someone else knows a better method.
This will not load the packaged layers into your project file so you would
have to either load them in again and delete your original layers or open
up a new project and load them in to that.
You can then save your project to the same geopackage.
Double clicking on the geopackage in my experience will not open the
project file instead it will open up one of the layers.
Instead you need to open it through the qgis file browser. Once you do this
you can do all the things you described.

Things that would make this an easy one click process would be if package
layers:

   1. Worked on rasters
   2. Had an option to include the project file.

Things that would make it even better.

   1. An extent could be defined
   2. A projection could be defined.


-Bas

On Sat, Oct 31, 2020 at 1:29 PM António Pestana 
wrote:

> Yes, muddy clear indeed.
>
> What I want is to save my entire project (data tables, layers, layer
> groups, layer formatting, etc.), including all my own data (vectors
> tables, rasters, etc) in a single file that can be sent to anyone.
>
> Anyone using QGIS and having access to my file should be able to:
>
> a) read this file and immediately display my entire project (layers,
> layer groups, labels, images, etc.) with all the formatting that I
> applied to it;
> b) read and /or edit all the data
> c) modify the project.
>
> Regards
>
> António
>
> Mike Flannigan  escreveu no dia quinta, 29/10/2020 à(s)
> 13:49:
> >
> >
> > Wow.  Clear as mud, heh?
> >
> > I want to learn this with you, even though I don't have
> > a great need for it yet.
> >
> > Does this video help?
> > https://freegistutorial.com/how-to-create-a-geopackage-on-qgis-3-2/
> >
> > I honestly don't know because I haven't tried it yet.
> > But I don't like that you have to select Line Feature, or
> > Polygon feature, or whatever.  Seems like we just want one
> > geopackage for everything, right?
> >
> >
> > Mike
> >
> >
> >
> > On 10/29/20 7:52 AM, qgis-user-requ...@lists.osgeo.org wrote:
> > > I'm a brand new user trying to adapt my workflows to  QGIS.
> > > I've created a project having more than twenty layers. In order to
> > > keep things more manageable I've structured these layers using several
> > > groups. I would like to save my project (layers, groups, formatings,
> > > etc) and all my data using only one file and send it to one coworker
> > > of mine. I suppose that exporting to one geopackage-type file is the
> > > way to go. It seems to me that my needs shouldn't be uncommon but
> > > unfortunately I don't know how to do that.
> > >
> > > I've searched QGIS user guide with no luck. Can anyone help me?
> > >
> > > Regards
> > >
> > > Antonio
> >
> >
> > ___
> > Qgis-user mailing list
> > Qgis-user@lists.osgeo.org
> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

[Qgis-user] Pygis path or field index from layer ID

[Sebastian Gutwein]

Hi,
I am trying to create a tool that chains together some algorithms.
Normally I would just use the graphical modeler but one of the tools I want
to chain together is Tin Interpolation that doesn't seem to work well with
the modeler.
I have gotten it to work by setting up what I can in the modeler and then
exporting and modifying a python script.
One thing that I can't seem to get to work is the input field for the
interpolation plugin. It appears to need the field index.
I can get the field index if I have the file path but when I use the Vector
Layer Parameter like this:
*self.addParameter(QgsProcessingParameterVectorLayer('Elevationpoints',
'Elevation_points', types=[QgsProcessing.TypeVectorAnyGeometry],
defaultValue=None))*

This seems to return the layer ID rather than the path. Something like this:
*'Elevationpoints_ad0ce945_8f93_4e0e_8fe7_5b053ef287dd'*

In the console I get the correct result if I run script this with the path-



*vlayer = QgsVectorLayer('C:\Elevationpoints.shp')index =
vlayer.fields().lookupField('Lidar')print(index)*
But if I try to use the layer ID from the console or the script GUI I get
-1 meaning the field was not found.
And if I run dataprovider() it says the layer doesn't have a data provider.

How can I get the field index from the layer ID?

I also posted this question on stack exchange.
https://gis.stackexchange.com/questions/379502/index-of-field-layer-where-i-have-the-layer-id-pyqgis-3

Thanks for the help!
-Bas
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] R: Importing a raster into a Geopackage

[Sebastian Gutwein]

This looks like the same issue you are having.
github.com/qgis/QGIS/issues/38227
According to the documentation linked in the issue you need to set the band
count to 1 otherwise it defaults to 4.
gdal.org/drivers/raster/gpkg.html
I have not tried this to see if it works.

On Tue, Dec 1, 2020 at 11:52 AM Nicolas Cadieux 
wrote:

> Hi,
>
> Looking at it now.  I see what you see.  I will try a few things.
>
> Nicolas
> On 2020-12-01 11:42 a.m., Alberto Vavassori wrote:
>
> Hi Nicolas,
>
> thank you for the answer. I send the raster that I am interested in.
>
> Alberto
>
>
>
> *Da:* Nicolas Cadieux 
> 
> *Inviato:* martedì 1 dicembre 2020 17:40
> *A:* Alberto Vavassori 
> 
> *Cc:* qgis-user@lists.osgeo.org
> *Oggetto:* Re: [Qgis-user] Importing a raster into a Geopackage
>
>
>
> Hi,
>
> Send a sample data set if you can't figure it out.
>
> Nicolas
>
> On 2020-12-01 10:35 a.m., Nicolas Cadieux wrote:
>
> Hi,
>
> Perhaps this can help: https://gdal.orgdrivers/raster/gpkg.html
>
>
>
> “Various kind of input datasets can be converted to GeoPackage raster :
>
> ·Single band grey level
>
> ·Single band with R,G,B or R,G,B,A color table
>
> ·Two bands: first band with grey level, second band with alpha
> channel
>
> ·Three bands: Red, Green, Blue
>
> ·Four band: Red, Green, Blue, Alpha
>
> GeoPackage rasters only support Byte data type.”
>
> My guess is that if the original raster does not correspond to one of the
> categories above, it will be converted to the closest format.
>
>
>
> Nicolas Cadieux
>
> https://gitlab.com/njacadieux
>
>
>
> Le 1 déc. 2020 à 09:58, Alberto Vavassori 
>  a écrit :
>
> 
>
> Hello everybody. I have an issue regarding the Geopackage format. I have
> tried to import a singleband raster file (it represents the land cover,
> thus every pixel has a single integer value corresponding to the land cover
> class), but this operation seems to modify the raster characteristics: the
> raster becomes a 4-bands raster and the pixels values change accordingly
> (basically, the original raster is saved in the Geopackage as an RGB
> image). It seems to be a bug of QGIS. I have also tried to use GDAL
> translate through the processing toolbox of QGIS to convert the TIFF file
> to a Geopackage file, but the result is the same.
>
> Has anybody faced this problem? May anybody suggest a way to work this
> problem out?
>
> Thank you.
>
> Alberto
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> --
>
> Nicolas Cadieux
>
> https://gitlab.com/njacadieux
>
> --
> Nicolas Cadieuxhttps://gitlab.com/njacadieux
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Move polyline objects by set distance

[Sebastian Gutwein]

Ryan,
The advanced digitizing panel allows you to use the move tool and input a
specific distance (use the "d" shortcut). Here is some documentation:
https://docs.qgis.org/3.16/en/docs/user_manual/working_with_vector/editing_geometry_attributes.html#move-feature-s
-Sebastian

On Tue, Dec 1, 2020 at 1:29 PM Ryan Peel  wrote:

> I have several polyline objects (hundreds) that I want to move on the map
> by a short distance (3ft to the N, S, E, or W) in a cardinal type
> direction.
>
> I see the Move Objects tool in QGIS 3 but that doesn't allow me to specify
> a distance.  I have used the Offset tool in the QAD plugin to create
> parallel lines but that is very tedious and creates a copy of the object.
>
> Is there a way to select a bunch of objects and just move them in one
> direction or another by x # of feet?
>
> Thanks!
>
> --
> *Ryan Peel*
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] R: R: Importing a raster into a Geopackage

[Sebastian Gutwein]

Alberto,
I found that by clicking on “Style > Save as Default” in the “Symbology”
tab it will store the symbology in the geopackage.

On Wed, Dec 2, 2020 at 10:11 AM Alberto Vavassori <
alberto.vavass...@polimi.it> wrote:

> Hi Kirk,
>
> I tried with another raster file that represents a temperature
> distribution (continuous values). In this case, when I import it into the
> Geopackage, I see the same issue that you have just described: minimum and
> maximum values in the legend change, but it seems that the actual values
> remain unchanged, thus correct. Unfortunately this is not the case of the
> land cover raster (discrete set of values) that I have shared with you: in
> this case, the raster characteristics change, as we have all noticed.
>
> Just another question, hoping that you might have an answer: is it
> possible to store the symbology of a raster file inside the Geopackage? I
> know that it is possible for vector data, by clicking on “Style > Save
> style” in the “Symbology” tab. But I cannot find a way to save the
> symbology in case of raster files.
>
> Thanks a lot.
>
> Alberto
>
>
>
> *Da:* Qgis-user  * Per conto di *Kirk
> Schmidt
> *Inviato:* mercoledì 2 dicembre 2020 16:00
> *A:* Nicolas Cadieux ;
> qgis-user@lists.osgeo.org
> *Oggetto:* Re: [Qgis-user] R: Importing a raster into a Geopackage
>
>
>
> Hi all:
>
> I ran the r.stats to get a list of each pixel value on my test data (A
> small DEM) before and after conversion to a geopackage (see second image
> below).  The values and summary stats are identical for the two rasters but
> the default legend entry has a different min and maximum value.  So, I can
> conclude that the data is being written correctly but the default display
> parameters for the geopackage  are different than a geotiff.
>
> Kirk
>
>
>
> On 12/1/2020 3:24 PM, Nicolas Cadieux wrote:
>
> Hi,
>
> I changed the link so you have access to more files.
>
>
> https://drive.google.com/drive/folders/1fMl9odowUFFRQFK61rTxgHeom_D8ymN6?usp=sharing
>
> Nicolas
>
> On 2020-12-01 1:58 p.m., Kirk Schmidt wrote:
>
> Hi Nicolas
>
> I did the same and the legend indicates a change magnitude but if I
> subtract the geopackage raster from the original, all pixels equal zero.
>
> Kirk
>
> On 12/1/2020 2:36 PM, Nicolas Cadieux wrote:
>
> Hi,
>
> Tried this:
>
> gdal_translate -of GPKG -b 1
> C:/Users/Nicolas/Desktop/Land_cover_Corine2018.tif
> C:/Users/Nicolas/Desktop/test.gpkg
>
> I read 4 band and still get data modifications.
>
> Nicolas
>
> On 2020-12-01 1:28 p.m., Kirk Schmidt wrote:
>
> Hi Nicolas:
>
> try the -b 1 parameter.  I just tried this and wrote a single band raster
> from a 3 channel tiff.
>
> Kirk
>
> On 12/1/2020 2:03 PM, Nicolas Cadieux wrote:
>
> I tried
>
> gdal_translate -of GPKG -co "BAND_COUNT=1"
> C:/Users/Nicolas/Desktop/Land_cover_Corine2018.tif
> C:/Users/Nicolas/Desktop/TEST.gpkg for the creation and
>
> C:\>gdal_translate -of GPKG -co "TILE_FORMAT = TIFF"
> C:/Users/Nicolas/Desktop/Land_cover_Corine2018.tif
> C:/Users/Nicolas/Desktop/TEST.gpkg
>
> Same problem.  I wonder if we need to change the reading options...
> https://gdal.org/drivers/raster/gpkg.html
> "Opening options
>
> By default, the driver will expose a GeoPackage dataset as a four band
> (Red,Green, Blue,Alpha) dataset, which gives the maximum compatibility with
> the various encodings of tiles that can be stored. It is possible to
> specify an explicit number of bands with the BAND_COUNT opening option."
>
> The problem could be when QGIS Reads the file, not when it writes the
> file.  I explains why we see 4 bands but not why values are changing.  I
> would make a bug report or ask the question on the gdal dev group to get
> Even Rouault's attention.
>
> Nicolas
>
>
>
> On 2020-12-01 12:17 p.m., Sebastian Gutwein wrote:
>
> This looks like the same issue you are having.
> github.com/qgis/QGIS/issues/38227
>
> According to the documentation linked in the issue you need to set the
> band count to 1 otherwise it defaults to 4.
>
> gdal.org/drivers/raster/gpkg.html
>
> I have not tried this to see if it works.
>
>
>
> On Tue, Dec 1, 2020 at 11:52 AM Nicolas Cadieux <
> njacadieux.git...@gmail.com> wrote:
>
> Hi,
>
> Looking at it now.  I see what you see.  I will try a few things.
>
> Nicolas
>
> On 2020-12-01 11:42 a.m., Alberto Vavassori wrote:
>
> Hi Nicolas,
>
> thank you for the answer. I send the raster that I am interested in.
>
> Alberto
>
>
>
> *Da:* Nicolas Cadieux 
> 
> *Inviato:*

Re: [Qgis-user] Diagnosing QGIS slowdown (Windows)

[Sebastian Gutwein]

Martin,
Sorry to hear about your problems.
When I am doing complex digitizing or geoprocessing I often open up a
second instance of QGIS.
As of 3.14 you can now simply drag layers from one instance to another
without losing styling.
https://github.com/qgis/QGIS/pull/35382
Makes it easy to troubleshoot or work with a subset of layers without too
much hassle.


On Wed, Dec 16, 2020 at 11:04 AM Nicolas Cadieux <
njacadieux.git...@gmail.com> wrote:

> Hi,
> Rig is ok for QGIS.  This is the second time this week that someone talks
> about using geopackage and that there is a slow down after the initial
> project creation.  I would try a project using .shp files and strait .tiff
> to see the problem comes from the .gpkg files.
> Nicolas
>
> On Wed, Dec 16, 2020 at 10:56 AM Martin Pergler  wrote:
>
>> Thanks for the reply.
>>
>> System: Lenovo T490, Intel i7 8565U (runs at about 9-20% CPU usage, no
>> change during the freezes), GEForce MX250 (runs about 20-25% whenever QGIS
>> is running). 16 Gig physical memory. SSD with capacity, no unusual disk
>> activity or competing process hogs. All worked just fine until now.
>>
>> Interestingly, if I create a new project with just a couple of layers I'm
>> actively editing, there is no problem. That's a temporary workaround, I
>> guess. And I could rebuild my project file, which would be a hassle but
>> doable by importing layers one by one from the old project via the browser
>> to retain the layer properties (and testing after every few to see if/when
>> the problem arises again). But before taking the time to do that still
>> hoping for any suggestions on how to track down the processing hog in the
>> current project, or ideas what typically makes QGIS choke.
>>
>>
>>
>> --
>> Sent from: http://osgeo-org.1560.x6.nabble.com/QGIS-User-f4125267.html
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Confusion with ellipsoidal method of $area

[Sebastian Gutwein]

Hello,
Sorry if this gets posted twice I previously attached a .gpkg and it
bounced due to the 100kb limit.
I am enjoying this fascinating discussion. This is all fairly new to me so
I looked some things up and want to make sure that I am getting things
right,

   1. In QGIS the $area function uses the sphere/ellipsoid settings of the
   project not of the CRS of the layer.
   2. QGIS uses the PROJ library to calculate area
   3. According to the PROJ documentation
   even.rouault.free.fr/proj_cpp_api/rst_generated/html/geodesic.html PROJ
   uses GeographicLib to calculate area.

If this is all true then if as  Jukka Rahkonen describes the layer and the
project were both EPSG:4326 and the ellipsoid in the Project-Settings was
WGS 84 (EPSG:7030) then the QGIS measurements should be consistent (if they
are correct is open to discussion).with this GeographicLib web
calculator that says it uses the WGS84 ellipsoid
geographiclib.sourceforge.io/cgi-bin/Planimeter?type=polygon&rhumb=geodesic&input=59.95688345+20.13293641%0D%0A60.47397663+26.94617837%0D%0A62.56499443+29.74782155%0D%0A68.70650340+27.45254202%0D%0A68.24937206+23.75771765%0D%0A65.27444593+25.42698984%0D%0A63.10353609+21.51545237%0D%0A61.12318104+21.40562760%0D%0A60.40477513+19.41123592%0D%0A59.95688345+20.13293641&option=Submit

Using Jukka Rahkonen's points and processes I ended up with the same non
consistent results as they reported. Attached is a geopackage with the
polygon that I used,

On Wed, Jan 6, 2021 at 10:29 AM Sebastian Gutwein  wrote:

> Hello,
> I am enjoying this fascinating discussion. This is all fairly new to me so
> I looked some things up and want to make sure that I am getting things
> right,
>
>1. In QGIS the $area function uses the sphere/ellipsoid settings of
>the project not of the CRS of the layer.
>2. QGIS uses the PROJ library to calculate area
>3. According to the PROJ documentation
>even.rouault.free.fr/proj_cpp_api/rst_generated/html/geodesic.html
>PROJ uses GeographicLib to calculate area.
>
> If this is all true then if as  Jukka Rahkonen describes the layer and the
> project were both EPSG:4326 and the ellipsoid in the Project-Settings was
> WGS 84 (EPSG:7030) then the QGIS measurements should be consistent (if they
> are correct is open to discussion).with this GeographicLib web
> calculator that says it uses the WGS84 ellipsoid
> geographiclib.sourceforge.io/cgi-bin/Planimeter?type=polygon&rhumb=geodesic&input=59.95688345+20.13293641%0D%0A60.47397663+26.94617837%0D%0A62.56499443+29.74782155%0D%0A68.70650340+27.45254202%0D%0A68.24937206+23.75771765%0D%0A65.27444593+25.42698984%0D%0A63.10353609+21.51545237%0D%0A61.12318104+21.40562760%0D%0A60.40477513+19.41123592%0D%0A59.95688345+20.13293641&option=Submit
>
> Using Jukka Rahkonen's points and processes I ended up with the same non
> consistent results as they reported. Attached is a geopackage with the
> polygon that I used,
> -Sebastian
>
> On Tue, Jan 5, 2021 at 3:52 PM Nicolas Cadieux <
> njacadieux.git...@gmail.com> wrote:
>
>> Hi,
>>
>> QGIS is currently built on Proj version 6.3.2-1.  If the other libraries
>> are using a spheroid by default, then they use a sphere for speed and not
>> an ellipsoid for precision.  You can probably force this measurement in
>> QGIS by creating a custom CRS with a spheroid rather than an ellipsoid. The
>> other option is to use the python in QGIS and to force a geoid.
>>
>> Nicolas
>> On 2021-01-05 1:33 p.m., Rahkonen Jukka (MML) wrote:
>>
>> Hi,
>>
>>
>>
>> I suppose that PostGIS is using the WGS 84 ellipsoid but I am not sure
>> where from the documentation I could find that information. The ST_Area
>> document https://postgis.net/docs/ST_Area.html says only “For geography
>> types by default area is determined on a spheroid with units in square
>> meters”. Same thing with Spatialite, documentation suggests just that it is
>> “the” spheroid
>> http://www.gaia-gis.it/gaia-sins/spatialite-sql-latest.html.
>>
>>
>>
>> I did not notice this paragraph in the ST_Area document earlier
>> “Enhanced: 2.2.0 - measurement on spheroid performed with GeographicLib for
>> improved accuracy and robustness. Requires Proj >= 4.9.0 to take advantage
>> of the new feature.” So no wonder that the web app and PostGIS give the
>> same results because they both use GeographicLib. And SpatiaLite 5.0 is
>> using RTTopo that is a library that is based on LWGeom so close connection
>> in there too.
>>
>>
>>
>> So perhaps the way to get identical areas from QGIS would be to make it
>> to use GeographicLib as well. I have no idea if it is a realistic approach
>> and worth maki

Re: [Qgis-user] how to smooth pixel dtm raster

[Sebastian Gutwein]

While I find it difficult to completely remove those artifacts I
usually use SAGA Gaussian Filter in QGIS to smooth rasters.
You will lose real edes and creases.


On Wed, Jan 20, 2021 at 3:17 PM Azzurra Lentini 
wrote:

> Hi list,
> I am using qgis 3.10 and 3.14.
>
> I downloaded a raster dtm nasa (AsterGdem Nasa pixel size 30) and I
> extracted  shade and slope. In these resulting files there are several
> lines E-W direction that I would like to hide (I think these lines are the
> result of the satellite survey). In Arcgis I do this operation with
> smoothing pixels, but I can’t find how to do the same in qgis.
>
> Thanks. A.L.
>
> --
> Lecturer GIS University "Roma Tre"
> Consultant Environmental Risk Prevention and Hydrogeology
> AZZURRA LENTINI
> ++
> Italy Mobile Tel.: **(39) 338 24 40 676
> ++
> SKYPE azzurrahydro
> ++
>
> *azzurralent...@gmail.com *
>
> *azzurra.lent...@uniroma3.it  *
> ++
> *Par respect pour l'environnement,*
>
> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>
>
>
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] how to smooth pixel dtm raster

[Sebastian Gutwein]

Glad it worked out.
I think the search radius is in pixels not meters so 30 is probably more
than you need.

On Wed, Jan 20, 2021 at 5:14 PM Azzurra Lentini 
wrote:

> Hi Sebastian thanks a lot.
> Yes it is what I was looking for!
> As the aster gdem is 30meter pixel resolution (square), I inserted: search
> mode square and search radius 30..
>
> Thanks Azzu
>
>
> On Wed, 20 Jan 2021 at 22:04, Sebastian Gutwein  wrote:
>
>> While I find it difficult to completely remove those artifacts I
>> usually use SAGA Gaussian Filter in QGIS to smooth rasters.
>> You will lose real edes and creases.
>>
>>
>> On Wed, Jan 20, 2021 at 3:17 PM Azzurra Lentini 
>> wrote:
>>
>>> Hi list,
>>> I am using qgis 3.10 and 3.14.
>>>
>>> I downloaded a raster dtm nasa (AsterGdem Nasa pixel size 30) and I
>>> extracted  shade and slope. In these resulting files there are several
>>> lines E-W direction that I would like to hide (I think these lines are the
>>> result of the satellite survey). In Arcgis I do this operation with
>>> smoothing pixels, but I can’t find how to do the same in qgis.
>>>
>>> Thanks. A.L.
>>>
>>> --
>>> Lecturer GIS University "Roma Tre"
>>> Consultant Environmental Risk Prevention and Hydrogeology
>>> AZZURRA LENTINI
>>> ++
>>> Italy Mobile Tel.: **(39) 338 24 40 676
>>> ++
>>> SKYPE azzurrahydro
>>> ++
>>>
>>> *azzurralent...@gmail.com *
>>>
>>> *azzurra.lent...@uniroma3.it  *
>>> ++
>>> *Par respect pour l'environnement,*
>>>
>>> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>>>
>>>
>>>
>>>
>>>
>>> ___
>>> Qgis-user mailing list
>>> Qgis-user@lists.osgeo.org
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>
>>
>
> --
> Lecturer GIS University "Roma Tre"
> Consultant Environmental Risk Prevention and Hydrogeology
> AZZURRA LENTINI
> ++
> Italy Mobile Tel.: **(39) 338 24 40 676
> ++
> SKYPE azzurrahydro
> ++
>
> *azzurralent...@gmail.com *
>
> *azzurra.lent...@uniroma3.it  *
> ++
> *Par respect pour l'environnement,*
>
> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>
>
>
>
>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] GTiff compression issues

[Sebastian Gutwein]

Not my area of expertise but my first suspect would be the alpha channel
(the A in RGBA or transparency). JPEG doesn’t support an alpha channel. You
might try png or jpeg 2000 as an alternative.


On Thu, Jan 21, 2021 at 2:12 AM Yury  wrote:

> Hi,
>
> I am using QGIS to try and compress hi-res drone imagery.  I am using GDAL
> tools, such as 'Clip Raster by Extent' .  In the command line parameters I
> am adding the following:
>
> -co COMPRESS=JPEG -co TILED=YES --config GDAL_TIFF_INTERNAL_MASK YES.
>
> The original image is RGBA.
>
> Compression is significant (which is what I need) and visually there is
> not much of a difference.  However, when zooming further in (1:200), I
> noticed that some raster cells have turned white.  When inspecting, it
> appears that the compression is changing the data of one or more of the
> bands to nodata.  How can this be resolved?
>
> I am using QGIS 3.10.8
>
> Thanks
>
> Yury Zammit
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein
Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com
(631) 241-1018
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] raster: calculate area

[Sebastian Gutwein]

I would use Raster Layer Unique Value Report.
https://docs.qgis.org/3.4/en/docs/user_manual/processing_algs/qgis/rasteranalysis.html#raster-layer-unique-values-report



On Fri, Jan 29, 2021 at 4:08 AM Micha Silver  wrote:

> Hi
>
> On Fri, Jan 29, 2021 at 12:32 AM Azzurra Lentini 
> wrote:
>
>> Hi List,
>> I have a raster file DTM (altitude attribute in the pixels). I
>> reclassified this raster in 4 classes of altitude and I need to calculate
>> for each class  the area (in how many square meters is each different class
>> extended).
>> I can for example transform the raster file reclassified into a vector
>> file and calculate the area, but is it possible to do without any
>> vectorialization and so directly calculating it from the raster file?
>>
>>
> I you're willing to try using GRASS GIS, then the module r.stats is what
> you want
> https://grass.osgeo.org/grass78/manuals/r.stats.html
>
>>  Thanks, Azzurra
>>
>> --
>> Lecturer GIS University "Roma Tre"
>> Consultant Environmental Risk Prevention and Hydrogeology
>> AZZURRA LENTINI
>> ++
>> Italy Mobile Tel.: **(39) 338 24 40 676
>> ++
>> SKYPE azzurrahydro
>> ++
>>
>> *azzurralent...@gmail.com *
>>
>> *azzurra.lent...@uniroma3.it  *
>> ++
>> *Par respect pour l'environnement,*
>>
>> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>>
>>
>>
>>
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>
>
> --
> Micha Silver
> Ben Gurion Univ
> Sde-Boker Remote Sensing Lab
> cell: +972 (52) 3665918
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein
Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com
(631) 241-1018
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Detail-level of exported maps

[Sebastian Gutwein]

Fred,
This is in my experience a limitation of the online basemaps. They are not
designed for printing.
As mentioned earlier you can use the map tiler plugin
https://www.maptiler.com/qgis-plugin/ to add vector tile maps. This has 2
advantages.
First if you print at 72 dpi the labels will still be crisp because they
are vectors. This does not help if you also have a raster layer because now
it will be low resolution.
Second you have control over the styles. This means you can make all of the
adjustment to label size in the style tab of the vector tile.

I have gone as far as creating a style with a project variable that I can
adjust the scale of the vector tile style tile at any point.

   1.

   First add tile_zoom_mag as a project property
   2.

   If you set iit to 1- you will see it as you would expect. For 150dpi
   something like 2 might be better. If it is set to a high number in the map
   and layout view before printing it will look wrong.


   1.

   To create the style I added @tile_zoom_mag * (original expression) in
   front of all the size expressions for line work.
   2.

   For label size and lines that did not have an expression I used @value
   *@tile_zoom_mag. This takes the currently set value and multiplies it by
   the tile_zoom_mag variable.

-Bas

On Thu, Feb 4, 2021 at 8:01 AM Frederik Franke 
wrote:

> Dear QGIS users,
>
>
>
> I’m relatively new to QGIS and need a quick help to export a map (as pdf)
> from the QGIS composer.
>
>
>
> My map contains an OpenStreetMap background map and I have the problem
> that the exported OpenStreetMap is much too detailed (e.g. hundreds of
> village names are included with a very small font size). When I change the
> export resolution from 300 dpi to 72 dpi in the composer I can circumvent
> this problem. Only big cities are labeled now and the city names are in an
> appropriate size. Unfortunately the map has a very bad resolution now (I
> can see single pixels when I set the pdf-zoom factor to 100 percent).
>
>
>
> How can I export a map with a lower detail-level but a good resolution?
>
>
>
> Thanks and best
>
>
>
> Fred
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Unreadable streetnames during export as image from print composer

[Sebastian Gutwein]

As Silvio said this is a limitation of the online basemaps. They are not
designed for printing.
As Sivlio mentioned the size is determined by the export resolution In your
Layout window try setting your output resolution under
*layout>properties>export
settings* to 96dpi. This will make your labels the right size but any
rasters you have will be fuzzy.

If rasters being fuzzy is a problem then it is good that you are using
Maptiler because it gives you control over the styles. This means you can
make all of the adjustment to label size in the style tab of the vector
tile. If you are printing at 300 dpi make them 3 times larger than you
think you need.
They will look way too big in QGIS but when you print them they will be the
right size.

I have gone as far as creating a style with a project variable that I can
adjust the scale of the vector tile style tile at any point.

   1.

   First add tile_zoom_mag as a project property
   2.

   If you set iit to 1- you will see it as you would expect. For 150dpi
   something like 2 might be better. If it is set to a high number in the map
   and layout view before printing it will look wrong.


   1.

   To create the style I added @tile_zoom_mag * (original expression) in
   front of all the size expressions for line work.
   2.

   For label size and lines that did not have an expression I used @value
   *@tile_zoom_mag. This takes the currently set value and multiplies it by
   the tile_zoom_mag variable.


On Fri, Feb 12, 2021 at 6:06 AM silvio.bentzien <
silvio.bentz...@protonmail.com> wrote:

> Hey,
> that is a common thing to happen when exporting maps using a WM(T)S or
> Tile layer. This is due to the difference in DPI between your monitor
> (probably ~ 96dpi) and the exported map (probably ~300dpi).
>
> Service layers will send you more tiles of a smaller scale instead of
> something that resembles what you see on your screen. A solution would be
> to use service layers that have a fixed scale. I'm not familiar with
> maptiler/pdok but if they have a layer for, let's say, 1:1, then use
> this one if your map is 1:1.
>
> Hope this helps.
>
> greetings,
> silvio
>
> ‐‐‐ Original Message ‐‐‐
> On Friday, February 12, 2021 11:54 AM,  wrote:
>
> I’m encountering an issue where the streetnames from maptiler/pdok
> services are barely visible on the exported image but are properly scaled
> when viewed in QGIS-composer. Can anyone recommend a fix for this?
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] contours and symbology

[Sebastian Gutwein]

I use rule based styling with this expression for my 100m contour filter
rule:
"ELEV" % 100 = 0
And then another rule that has the Else selected.
The formula is:
"ELEV" :The attribute field that contains your label
% : The remainder from division
100 : the divider
= 0 : the remainder should equal zero.
This filters all the 100m contours.

On Wed, Mar 3, 2021 at 1:01 PM Azzurra Lentini 
wrote:

> Hi to all,
>
> I have extracted contours from a dtm raster 20 m resolution file and the
> result is a vector file of contours with 20 m of interval between the
> contours.
>
> I would like to have two different symbols for these contours: for example
> black colour and thickness 1 for the contours with interval of 100 m (0,
> 100, 200, 300 etc.) and grey colour and thickness 0.5 for the contours 20,
> 40, 60, 80, 120, 140 .. etc.).
>
> What can I do?
>
> Normally I create another contours file only for the contours equidistant
> 100 m and I put a different symbol for the 2 layers.
>
> Do you know other ways without the creation of another file?
> maybe rule-based symbology?
>
>
> Thank you, Azzurra
>
> --
> Lecturer GIS University "Roma Tre"
> Consultant Environmental Risk Prevention and Hydrogeology
> AZZURRA LENTINI
> ++
> Italy Mobile Tel.: **(39) 338 24 40 676
> ++
> SKYPE azzurrahydro
> ++
>
> *azzurralent...@gmail.com *
>
> *azzurra.lent...@uniroma3.it  *
> ++
> *Par respect pour l'environnement,*
>
> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>
>
>
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] contours and symbology

[Sebastian Gutwein]

Sorry typo: "ELEV" :The attribute field that contains your elevation

On Wed, Mar 3, 2021 at 1:19 PM Sebastian Gutwein  wrote:

> I use rule based styling with this expression for my 100m contour filter
> rule:
> "ELEV" % 100 = 0
> And then another rule that has the Else selected.
> The formula is:
> "ELEV" :The attribute field that contains your label
> % : The remainder from division
> 100 : the divider
> = 0 : the remainder should equal zero.
> This filters all the 100m contours.
>
> On Wed, Mar 3, 2021 at 1:01 PM Azzurra Lentini 
> wrote:
>
>> Hi to all,
>>
>> I have extracted contours from a dtm raster 20 m resolution file and the
>> result is a vector file of contours with 20 m of interval between the
>> contours.
>>
>> I would like to have two different symbols for these contours: for
>> example black colour and thickness 1 for the contours with interval of 100
>> m (0, 100, 200, 300 etc.) and grey colour and thickness 0.5 for the
>> contours 20, 40, 60, 80, 120, 140 .. etc.).
>>
>> What can I do?
>>
>> Normally I create another contours file only for the contours equidistant
>> 100 m and I put a different symbol for the 2 layers.
>>
>> Do you know other ways without the creation of another file?
>> maybe rule-based symbology?
>>
>>
>> Thank you, Azzurra
>>
>> --
>> Lecturer GIS University "Roma Tre"
>> Consultant Environmental Risk Prevention and Hydrogeology
>> AZZURRA LENTINI
>> ++
>> Italy Mobile Tel.: **(39) 338 24 40 676
>> ++
>> SKYPE azzurrahydro
>> ++
>>
>> *azzurralent...@gmail.com *
>>
>> *azzurra.lent...@uniroma3.it  *
>> ++
>> *Par respect pour l'environnement,*
>>
>> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>>
>>
>>
>>
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] contours and symbology

[Sebastian Gutwein]

Bernd,
Thanks for the hint.
The % operator description in QGIS only says: Remainder of division
This has thrown me off in the past because I have tried to search for the
Modulo in the expressions dialog and nothing came up.
I should probably request a change to add the modulo term at the QGIS git
hub.


On Wed, Mar 3, 2021 at 1:45 PM Bernd Vogelgesang 
wrote:

> In case someone wants to google for the " % " later: it's called modulo
> operator (damn, took me half an hour to remember that)
>
>
> On 03.03.21 19:20, Sebastian Gutwein wrote:
>
> Sorry typo: "ELEV" :The attribute field that contains your elevation
>
> On Wed, Mar 3, 2021 at 1:19 PM Sebastian Gutwein  
>  wrote:
>
>
> I use rule based styling with this expression for my 100m contour filter
> rule:
> "ELEV" % 100 = 0
> And then another rule that has the Else selected.
> The formula is:
> "ELEV" :The attribute field that contains your label
> % : The remainder from division
> 100 : the divider
> = 0 : the remainder should equal zero.
> This filters all the 100m contours.
>
> On Wed, Mar 3, 2021 at 1:01 PM Azzurra Lentini  
> 
> wrote:
>
>
> Hi to all,
>
> I have extracted contours from a dtm raster 20 m resolution file and the
> result is a vector file of contours with 20 m of interval between the
> contours.
>
> I would like to have two different symbols for these contours: for
> example black colour and thickness 1 for the contours with interval of 100
> m (0, 100, 200, 300 etc.) and grey colour and thickness 0.5 for the
> contours 20, 40, 60, 80, 120, 140 .. etc.).
>
> What can I do?
>
> Normally I create another contours file only for the contours equidistant
> 100 m and I put a different symbol for the 2 layers.
>
> Do you know other ways without the creation of another file?
> maybe rule-based symbology?
>
>
> Thank you, Azzurra
>
> --
> Lecturer GIS University "Roma Tre"
> Consultant Environmental Risk Prevention and Hydrogeology
> AZZURRA LENTINI
> ++
> Italy Mobile Tel.: **(39) 338 24 40 676
> ++
> SKYPE azzurrahydro
> ++
>
> *azzurralent...@gmail.com  
> *
>
> *azzurra.lent...@uniroma3.it  
>  *
> ++
> *Par respect pour l'environnement,*
>
> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>
>
>
>
>
> ___
> Qgis-user mailing listqgis-u...@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
>
> ___
> Qgis-user mailing listqgis-u...@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Lidar download

[Sebastian Gutwein]

Jean,
In the US most areas that have flown LiDAR also provide DEM (raster terrain
models) created from the ground points of the datasets.
>From there it is easy to create contours.
NOAA has an inventory of all the areas that have data:
https://coast.noaa.gov/inventory/?redirect=301ocm

On Thu, Mar 4, 2021 at 9:12 PM Nicolas Cadieux 
wrote:

> Hi,
>
> If you want to create contour lines, you will need a Lidar data point and
> then create a DEM from which you will extract contour lines. (That’s the
> most common way of do it!)
>
>  LiDAR is new in QGIS and i’am not sure what files formats are supported
> yet.  I had trouble with the current version.  It did show support for a
> json file format but I expect the las/laz format support will pop up once
> the bugs are worked out.  In the mean while, I would use CloudCompare
> (OpenSource) to read the cloud and create the DEM.  Then, you could import
> the DEM into QGIS to extract the contour lines.
>
> If you want us to propose à data sets, then, I suggest you give us an idea
> of where you are working.  LiDar data is currently spars depending on the
> country and area.  You may get lucky as more open data is being produced
> every day.
>
>  I may suggest the lastool (openlaso) user list.  They have good knowledge
> of lidar data sources.  Lastool is a suit of tool to work with LiDar.  Some
> tools are OpenSource and some are not.  Read the individual license so you
> don’t violate the licenses.
>
> Good luck
>
> Nicolas Cadieux
> https://gitlab.com/njacadieux
>
> Le 4 mars 2021 à 09:37, jean Lukusa  a écrit :
>
> 
> Thank dear Kirk
> I
> My purpose is to generate topographical contour.
> Do you Can suggest to my what lidar .
>
> Jean Lukusa
> B.Sc. Geology
> Trained on Jorc  Code
> GIS  Operator
> +243812156128
>
> Le jeu. 4 mars 2021 à 14:32, Kirk Schmidt  a
> écrit :
>
>> Hi Jean:
>>
>> I am not sure what you are looking for?
>>
>> Do you want to download a lidar derived image (such as a surface model)
>> or do you want to work with raw  point cloud data?
>>
>> Kirk Schmidt
>> On 3/4/2021 8:41 AM, jean Lukusa wrote:
>>
>> Hi all ,
>> how Can I download Lidar image from  Qgis 3.18.0 ?
>>
>> Jean Lukusa
>> B.Sc. Geology
>> Trained on Jorc  Code
>> GIS  Operator
>> +243812156128
>>
>> ___
>> Qgis-user mailing listqgis-u...@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>> --
>> Kirk Schmidt, MScF, BScF, RPF
>> General Manager
>> Nortek Resource Solutions Inc.
>> RR # 1
>> Thorburn, NS
>> B0K 1W0
>> Tel (902) 922.3607
>> Email: k...@nortekresources.com
>> Web: www.nortekresources.com
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Raster Layer Symbology Problem

[Sebastian Gutwein]

Martin,
I think this may be the result of the new feature
https://qgis.org/en/site/forusers/visualchangelog318/#feature-gradient-ramp-based-legends
Which is exciting for me becasue that is how I would like to have my
continious data display. But it sounds like that is not what you are
interested in. I have not tried 3.18 myself so don't know if there is a
workaround.
It does look like there are some links to discussions in the comments of
this stack exchange question.
gis.stackexchange.com/questions/388843/qgis-3-18-override-raster-gradient-legends
gis.stackexchange.com/questions/388154/how-to-get-back-discrete-raster-legend-symbols-in-qgis-3-16
twitter.com/ThomasG77/status/1365255399927140355


On Tue, Mar 9, 2021 at 7:54 AM Bernd Vogelgesang 
wrote:

> Without testing I would say it's a bug. Quite some bugs went into 3.18
> unnoticed and unfortunately, it's not  communicated on the landing page.
> Next regular point release will be in 10 days, but for urgent stuff, you
> should better use 3.16.
>
>
> On 09.03.21 13:32, Martin Bittens wrot:
> > Hello QGIS User List, i
> >
> > I already sent this message but it was not posted, so it is here again.
> > Hopefully it works now.
> >
> >
> > I am still struggling with the problem creating a legend for a raster
> > layer. Usually I am working with the following settings in order to
> > colorize a calculated raster layer (e.g. after applying v.surf.idw on a
> > point data set):
> >
> > - rendering type: singleband pseudocolor
> >
> > - interpolation: linear
> >
> > - mode: equal interval
> >
> >
> > In QGIS 3.18.0:
> >
> > Selecting an appropriate color ramp and applying a classification in,
> > e.g., 5 classes, I see in the "Layer Properties - Symbology" window the
> > 5 colored classes separately and the corresponding 5 values (in my case
> > temperatures) for each color coding. But in the "Layer Panel" the legend
> > shows the color coding as a continuum and only the first and last value
> > of the value range appears. The same thing happens in the layout manager
> > when I create a layout for printing which includes a legend.
> >
> > In QGIS 3.16.4 LTR and previous versions:
> >
> > Doing the same I get the 5 color classes separately and the
> > corresponding values for each of the 5 classes in the "Legend Panel"as
> > well as in the layout manger.
> >
> >
> > My question: Is this a bug in the new QGIS version or does QGIS 3.18 not
> > provide this functionality anymore?
> >
> >
> > Thanks a lot for a comment.
> >
> >
> > Regards
> >
> >
> > Martin
> >
> >
> >
> > --
> > This email has been checked for viruses by Avast antivirus software.
> > https://www.avast.com/antivirus
> >
> > ___
> > Qgis-user mailing list
> > Qgis-user@lists.osgeo.org
> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Raster Layer Symbology Problem

[Sebastian Gutwein]

Martin,
I agree with your assessment.
I assume the assumption of the designers (thank you Nyall Dawson et al for
all of your amazing work) was that if you were displaying a
continuous raster you would want a continuous legend as well.
As shown by your issue and in the links I shared with you the reality is
that this doesn't fit all use cases.
I am considering writing up a feature request to address those issues.
Unless you want to?
To help me understand your use case more would a legend that was
continuous but had numerical values at each "break" work for you? An
example of this is in this tutorial
https://www.ecodiv.earth/post/legend-for-continuous-raster-in-qgis-composer/
[image: image.png]

-Bas

On Wed, Mar 10, 2021 at 2:34 PM Martin Bittens 
wrote:

> Sebastian, Bernd,
>
> thanks a lot for your response. I checked the links Sebastian sent. As far
> as I could see displaying data in the legend as a continuum is a new
> feature in QGIS 3.18 which replaced the previous method displaying data in
> the legend as categories (as QGIS 3.16.4 is still doing - fortunately.
> Otherwise it would be difficult producing maps in ongoing projects in a
> consistent layout). And obviously there is no option available switching
> between the old and the new display method. Personally I think it was not a
> good decision giving up completely the categorical display in the legend.
> In particular if you would work with multiple colors and a large range of
> values, there is no way to allocate map colors to the corresponding values,
> or vice versa.
>
> So, I hope that the next QGIS version will include an option which allows
> selecting the method how to  display the data, as continuum or categorized.
>
>
> Regards
>
> Martin
>
>
> Am 3/9/2021 um 4:18 PM schrieb Sebastian Gutwein:
>
> Martin,
> I think this may be the result of the new feature
> https://qgis.org/en/site/forusers/visualchangelog318/#feature-gradient-ramp-based-legends
> Which is exciting for me becasue that is how I would like to have my
> continious data display. But it sounds like that is not what you are
> interested in. I have not tried 3.18 myself so don't know if there is a
> workaround.
> It does look like there are some links to discussions in the comments of
> this stack exchange question.
> gis.stackexchange.com/questions/388843/qgis-3-18-override-raster-gradient-legends
>
> gis.stackexchange.com/questions/388154/how-to-get-back-discrete-raster-legend-symbols-in-qgis-3-16
> twitter.com/ThomasG77/status/1365255399927140355
>
>
> On Tue, Mar 9, 2021 at 7:54 AM Bernd Vogelgesang 
> wrote:
>
>> Without testing I would say it's a bug. Quite some bugs went into 3.18
>> unnoticed and unfortunately, it's not  communicated on the landing page.
>> Next regular point release will be in 10 days, but for urgent stuff, you
>> should better use 3.16.
>>
>>
>> On 09.03.21 13:32, Martin Bittens wrot:
>> > Hello QGIS User List, i
>> >
>> > I already sent this message but it was not posted, so it is here again.
>> > Hopefully it works now.
>> >
>> >
>> > I am still struggling with the problem creating a legend for a raster
>> > layer. Usually I am working with the following settings in order to
>> > colorize a calculated raster layer (e.g. after applying v.surf.idw on a
>> > point data set):
>> >
>> > - rendering type: singleband pseudocolor
>> >
>> > - interpolation: linear
>> >
>> > - mode: equal interval
>> >
>> >
>> > In QGIS 3.18.0:
>> >
>> > Selecting an appropriate color ramp and applying a classification in,
>> > e.g., 5 classes, I see in the "Layer Properties - Symbology" window the
>> > 5 colored classes separately and the corresponding 5 values (in my case
>> > temperatures) for each color coding. But in the "Layer Panel" the legend
>> > shows the color coding as a continuum and only the first and last value
>> > of the value range appears. The same thing happens in the layout manager
>> > when I create a layout for printing which includes a legend.
>> >
>> > In QGIS 3.16.4 LTR and previous versions:
>> >
>> > Doing the same I get the 5 color classes separately and the
>> > corresponding values for each of the 5 classes in the "Legend Panel"as
>> > well as in the layout manger.
>> >
>> >
>> > My question: Is this a bug in the new QGIS version or does QGIS 3.18 not
>> > provide this functionality anymore?
>> >
>> >
>> > Thanks a lot for a comment.
>> >
>> >

Re: [Qgis-user] make place names larger in OpenStreetMap

[Sebastian Gutwein]

Jeremy,
This is a common thing to happen when exporting maps using a WM(T)S or
Tile layer
such as Open Street Map. This is due to the fact that they are designed for
the DPI of your monitor (probably ~ 96dpi) rather than DPI of your exported
map (probably ~300dpi).
If you reduce the DPI of your exported map  in your Layout window by
setting your output resolution under *layout>properties>export settings* to
something like 96dpi. This will make the labels larger but you will
sacrifice the resolution of the output.

If you are using 3.16 you can use the Maptiler plugin to load a vector tile
version of OpenStreetMap which will give you control over the styles. This
means you can make all of the adjustment to label size in the style tab of
the vector tile. If you are printing at 300 dpi make them 3 times larger
than you think you need.   They will look way too big in QGIS but when you
print them they will be the right size.

-Bas

On Thu, Mar 11, 2021 at 10:48 PM jeremy benwell 
wrote:

> Hi QGIS Team,
>
> I want to use OpenStreetMap as a basemap for a project but the place names
> are a too small when I open in "Print Layount" and save as a tiff or jpeg,
> is it possible to make the place names larger?
>
> Cheers,
>
> Jeremy
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Raster Layer Symbology Problem

[Sebastian Gutwein]

Martin,
The link that Alessandro provided was indeed the ability to revert back to
the previous discrete method. https://github.com/qgis/QGIS/pull/42193
As the pull request has a Backport 3.18 flag on it I assume that that means
that for the 3.18.1 release next week there should be the ability to turn
off continuous raster legend!
-Bas

On Fri, Mar 12, 2021 at 6:30 AM Martin Bittens 
wrote:

> Hello Sebastian,
>
> thank you for your response. Yes indeed, for me the coloring style you
> showed would be an option. This style is what I get in GRASS GIS as well.
> But😁,
>
> what I would prefer in QGIS is this (as provided by QGIS 3.16.4 LTR):
>
>
> So I hope that in future QGIS versions, the user will have the choice
> between the different display options. As far as I understood the
> discussions in the links you sent there is something going on in order to
> add an option for selecting the new  or the old display style.
> Unfortunately, I am not an expert in that programming stuff and therefore I
> don't know how to apply what there is explained. I will wait and see what
> the next QGIS versions offer for displaying raster gradient legends. And I
> will keep the QGIS 3.16.4 LTR with special care not loosing the display
> style I showed above.
>
>
> Regards
>
>
> Martin
>
>
> Am 3/10/2021 um 5:54 PM schrieb Sebastian Gutwein:
>
> Martin,
> I agree with your assessment.
> I assume the assumption of the designers (thank you Nyall Dawson et al for
> all of your amazing work) was that if you were displaying a
> continuous raster you would want a continuous legend as well.
> As shown by your issue and in the links I shared with you the reality is
> that this doesn't fit all use cases.
> I am considering writing up a feature request to address those issues.
> Unless you want to?
> To help me understand your use case more would a legend that was
> continuous but had numerical values at each "break" work for you? An
> example of this is in this tutorial
> https://www.ecodiv.earth/post/legend-for-continuous-raster-in-qgis-composer/
> [image: image.png]
>
> -Bas
>
> On Wed, Mar 10, 2021 at 2:34 PM Martin Bittens 
> wrote:
>
>> Sebastian, Bernd,
>>
>> thanks a lot for your response. I checked the links Sebastian sent. As
>> far as I could see displaying data in the legend as a continuum is a new
>> feature in QGIS 3.18 which replaced the previous method displaying data in
>> the legend as categories (as QGIS 3.16.4 is still doing - fortunately.
>> Otherwise it would be difficult producing maps in ongoing projects in a
>> consistent layout). And obviously there is no option available switching
>> between the old and the new display method. Personally I think it was not a
>> good decision giving up completely the categorical display in the legend.
>> In particular if you would work with multiple colors and a large range of
>> values, there is no way to allocate map colors to the corresponding values,
>> or vice versa.
>>
>> So, I hope that the next QGIS version will include an option which allows
>> selecting the method how to  display the data, as continuum or categorized.
>>
>>
>> Regards
>>
>> Martin
>>
>>
>> Am 3/9/2021 um 4:18 PM schrieb Sebastian Gutwein:
>>
>> Martin,
>> I think this may be the result of the new feature
>> https://qgis.org/en/site/forusers/visualchangelog318/#feature-gradient-ramp-based-legends
>> Which is exciting for me becasue that is how I would like to have my
>> continious data display. But it sounds like that is not what you are
>> interested in. I have not tried 3.18 myself so don't know if there is a
>> workaround.
>> It does look like there are some links to discussions in the comments of
>> this stack exchange question.
>> gis.stackexchange.com/questions/388843/qgis-3-18-override-raster-gradient-legends
>>
>> gis.stackexchange.com/questions/388154/how-to-get-back-discrete-raster-legend-symbols-in-qgis-3-16
>> twitter.com/ThomasG77/status/1365255399927140355
>>
>>
>> On Tue, Mar 9, 2021 at 7:54 AM Bernd Vogelgesang <
>> bernd.vogelges...@gmx.de> wrote:
>>
>>> Without testing I would say it's a bug. Quite some bugs went into 3.18
>>> unnoticed and unfortunately, it's not  communicated on the landing page.
>>> Next regular point release will be in 10 days, but for urgent stuff, you
>>> should better use 3.16.
>>>
>>>
>>> On 09.03.21 13:32, Martin Bittens wrot:
>>> > Hello QGIS User List, i
>>> >
>>> > I already sent this message but it was not 

Re: [Qgis-user] Generate the bearing in the attribute table

[Sebastian Gutwein]

Carlos-
Interesting problem-
You might get better responses on stack exchange.
I have the same confusion as Ujaval. Each side of your polygon will have a
different bearing.
If all you care about is the average angle then you can use this
expression  main_angle( $geometry)
This will return azimuth of the polygon in degrees from north.
I don't know how to convert this to bearing in QGIS.



On Thu, Apr 8, 2021 at 3:28 PM carlos h  wrote:

>
>   Hello, for example have this in the attribute table:
>
> https://ibb.co/wWn4PfM
>
> What I need is to have the bearing in the polygon's attribute table.
>
>   Thanks
>
> CA
>
>
>>
>>
>> [image: image.gif]
>> El jue, 8 abr 2021 a las 10:49, Ujaval Gandhi (<
>> uja...@spatialthoughts.com>) escribió:
>>
>>> Can you elaborate with an example? It's not clear what the bearing would
>>> be for a polygon.
>>> [image: Logo] 
>>> Ujaval Gandhi
>>> Spatial Thoughts
>>> mobile: +91-8095684687
>>> email: uja...@spatialthoughts.com
>>> [image: LinkedIn icon]   
>>> [image:
>>> Twitter icon] 
>>>
>>>
>>>
>>> On Thu, Apr 8, 2021 at 8:50 PM carlos h  wrote:
>>>

 Hello, nice to write here.

 How can I generate the bearing in the attribute table of a polygon? the
 bearing not in azimuth, but for example N30E etc

 Thanks

 CA


 [image: image.gif]
 ___
 Qgis-user mailing list
 Qgis-user@lists.osgeo.org
 List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
 Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

>>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Background of a map

[Sebastian Gutwein]

Is the background map a streaming map such as open street map. It will load
different tile depending on the resolution that you are exporting it. If
your internet times out or you are exporting at a high DPI this can result
in the map not loading. Change your output resolution to 96 and see if that
helps. If so you can try to export at higher resolutions until you get to
one that has enough resolution and still loads.



On Tue, Apr 13, 2021 at 1:51 PM Cassia Pahim  wrote:

> Hello!
>
> I am trying to convert a map from my QGIS project into a PDF format but
> the background of the map disappears. Does anyone have an idea how can I
> solve this problem? Thanks!
> *Cassia *
>
>
>
>
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] background data

[Sebastian Gutwein]

Quick map services is great. So is https://www.maptiler.com/qgis-plugin/


On Thu, Apr 15, 2021 at 2:33 PM Bernd Vogelgesang 
wrote:

> https://gis.stackexchange.com/a/164598
>
>
> On 15.04.21 20:23, Cassia Pahim wrote:
>
> Hello! I am searching for data of a background map where I can show my layers 
> on the east coast of Canada and US. I would like a background with the names 
> of the cities and not a satellite image. Do you guys know where I could find 
> that kind of data? Thanks a lot!!
>
> Cassia
>
>
>
>
>
> ___
> Qgis-user mailing listqgis-u...@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Measure distance along line

[Sebastian Gutwein]

 Jérémie,
That does sound like a cool feature.
The work around I would use is:

   - Create a Line Scratch Layer
   - Trace the path of interest (using the automagic trace feature in
   snapping)
   - Get the derived length by using the identify tool.

-Bas

On Thu, Apr 29, 2021 at 8:49 AM Prud'homme Jérémie 
wrote:

> Hi,
>
> Thanks, I didn't thought about this tool but it can do the job.
> Having the ability to follow the line in the measure tool would be simpler
> for QGIS beginners, though.
>
> BR,
> Jérémie.
>
> Le jeu. 29 avr. 2021 à 14:03, Ujaval Gandhi 
> a écrit :
>
>> The closest I can think of is to use the 'Shortest path (point-to-point)'
>> tool from the Processing Toolbox. It will allow you to select 2 points on
>> your line layer and give you an output line with the distance along the
>> line as an attribute/
>> [image: Logo] 
>> Ujaval Gandhi
>> Spatial Thoughts
>> mobile: +91-8095684687
>> email: uja...@spatialthoughts.com
>> [image: LinkedIn icon]   
>> [image:
>> Twitter icon] 
>>
>>
>>
>> On Thu, Apr 29, 2021 at 5:23 PM Prud'homme Jérémie 
>> wrote:
>>
>>> Hi,
>>>
>>> I am wondering if it's possible to use the Measure distance tool to
>>> measure the distance between two places, following a line.
>>>
>>> For example, I click on a first place on the line, I click on a second
>>> place and the tool automagically follow the line.
>>> Same behavior as what we can do with the use of automatic tracing for
>>> geaometrie creations.
>>>
>>> BR,
>>> Jérémie.
>>> ___
>>> Qgis-user mailing list
>>> Qgis-user@lists.osgeo.org
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>
>> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] convex and concave areas

[Sebastian Gutwein]

In the QGIS toolbox there is a Saga algorithm called Terrain Surface
Convexity that does calculate convexity or concavity. I have never used it.
http://www.saga-gis.org/saga_tool_doc/2.2.3/ta_morphometry_21.html
https://sourceforge.net/p/saga-gis/discussion/354013/thread/3fadd3e7/

On Wed, May 5, 2021 at 4:14 AM Stefan Giese (WhereGroup) <
stefan.gi...@wheregroup.com> wrote:

> one process could be:
>
>- smooth the DTM by a neigbourhood analysis. The width depends on the
>size of your convex and concave areas. you can use a mean filter or lowpass
>for example
>- substract the filtered from the original
>- select values > or < your cutoff
>- convert this into polygons
>
> see
> https://www.researchgate.net/profile/Hazen-Russell/publication/277324326_A_semi-automated_esker_detection_method_EDM_for_improved_quantification_of_glaciated_landscapes/links/5567b6ca08aeab77721eac23/A-semi-automated-esker-detection-method-EDM-for-improved-quantification-of-glaciated-landscapes.pdf
> for further reading
>
> Hope this helps
>
> Stefan
> Am 05.05.2021 um 10:02 schrieb Azzurra Lentini:
>
> Hi list,
> I need to find the convex and concave areas from a dtm raster file. Do you
> have any suggestions?
> Thanks
>
> --
> Adjunct Professor University "Roma Tre"
> Gis Applied for Environmental studies
> Risk modelling & Hydrogeology
> Consultant DFID-UK, United Nations, EU projects
> AZZURRA LENTINI
> ++
> Italy Mobile Tel.: **(39) 338 24 40 676
> ++
> SKYPE azzurrahydro
> ++
>
> *azzurralent...@gmail.com *
>
> *azzurra.lent...@uniroma3.it  *
> ++
> *Par respect pour l'environnement,*
>
> *n'imprimez ce mail qu'en cas d'absolue nécessité*
>
>
>
>
>
>
> ___
> Qgis-user mailing listqgis-u...@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> --
> Mit freundlichen Grüßen
> Stefan Giese
> Projektleiter/Consultant
> 
> Aufwind durch Wissen!
> Web-Seminare und Online-Schulungen
> bei der www.foss-academy.com
> 
> WhereGroup GmbH
> Schwimmbadstr. 2
> 79100 Freiburg
> Germany
>
> Fon: +49 (0)761 / 519 102 - 61
> Fax: +49 (0)761 / 519 102 - 11
> stefan.gi...@wheregroup.comwww.wheregroup.com
> Geschäftsführer:
> Olaf Knopp, Peter Stamm
> Amtsgericht Bonn, HRB 9885
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

[Qgis-user] Reference Map properties in a different layout

[Sebastian Gutwein]

Hi I am trying to create a map layout that uses the size of the map from a
different layout in expressions. I am looking for something similar to
map_get but being able to pull it from another layout. So maybe layout_get?
How I imagine the expression would work:
y_min(map_get(item_variables( *layout_get*('Layout_1',(
'Main_Map')),'map_extent')))
Is there an expression like this somewhere?

I know I can create a project variable for x_min and use that but I would
rather create a master layout that I can adjust and it adjusts the items in
the other child layouts.
I also know I can create an atlas that allows me to have the same size maps
in each atlas section but I need the themes to change not the view.

Thanks
-Sebastian
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Qgis Excavated Pond Volume

[Sebastian Gutwein]

I have been doing volume calculations from Drone imagery processed in Open
Drone Map in QGIS and would be interested in helping you figure out how to
get it to work.
Here is a screenshot of the Processing Model I use.
[image: image.png]


On Tue, Jun 1, 2021 at 6:37 PM Tennessee Aerial Imagery <
tennesseeaerialimag...@gmail.com> wrote:

> I run GIS Mapping with Photogrammetry using Pix4D Desk Top Mapper to
> process the data into deliverable files for the construction industry.
> While
> the deliverables are easy to open and manipulate in Civil Cad, not all
> construction companies have Civil Cad SW. With these companies, I share
> the Pix4D Cloud version. That covers it pretty well. BUT!! sometimes I
> need to just share files for use in QGIS.
>
> While QGIS is simple enough with the Ortho. Contours, Elevations and
> Distances; I cannot break into Cut/Fill Volumes using the new Volume
> Calculation Tool. I am trying to attain the volume of a large on-site
> pond. No problem with Pix4D but cannot with QGIS.
>
> My Pix4D Z files are: DTM (DSM) Tif and Contour DXF and SHP
>
> I have no problem creating the Polygon but cannot place any of the factors
> together to obtain accurate volume with QGIS. Which is 6.7 million gallons.
>
> Can anyone help?? Thanks
>
> --
> * TENNESSEE AERIAL IMAGERY*
> *Aerial Mapping & Photography For The Construction & Commercial Real
> Estate Industries*
>
> * 865-621-5460   www.tnaerialimagery.com
>    tennesseeaerialimag...@gmail.com
> *
> *   Licensed - Insured - FAA Certified -
> References Available*
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Qgis Excavated Pond Volume

[Sebastian Gutwein]

This blog post might help get you started on the process.
https://www.pointsnorthgis.ca/blog/how-to-calculate-surfacecut-volume-qgis-advanced/

On Tue, Jun 1, 2021 at 9:01 PM Tennessee Aerial Imagery <
tennesseeaerialimag...@gmail.com> wrote:

> Thank you,
>
> I have printed out your method.  I will spend some time with it.
> The terminology is pretty alien to me.  But I will dig hard into it.
>
> Out of Pix4D the only Z files I get are a DSM tif file and contour
> dxf and shp file.  I have been doing my best with the new Qgis
> Vol Calc Tool but get nowhere.
>
> Thanks  Dave
>
> On Tue, Jun 1, 2021 at 7:27 PM Sebastian Gutwein  wrote:
>
>> I have been doing volume calculations from Drone imagery processed in
>> Open Drone Map in QGIS and would be interested in helping you figure out
>> how to get it to work.
>> Here is a screenshot of the Processing Model I use.
>> [image: image.png]
>>
>>
>> On Tue, Jun 1, 2021 at 6:37 PM Tennessee Aerial Imagery <
>> tennesseeaerialimag...@gmail.com> wrote:
>>
>>> I run GIS Mapping with Photogrammetry using Pix4D Desk Top Mapper to
>>> process the data into deliverable files for the construction industry.
>>> While
>>> the deliverables are easy to open and manipulate in Civil Cad, not all
>>> construction companies have Civil Cad SW. With these companies, I share
>>> the Pix4D Cloud version. That covers it pretty well. BUT!! sometimes I
>>> need to just share files for use in QGIS.
>>>
>>> While QGIS is simple enough with the Ortho. Contours, Elevations and
>>> Distances; I cannot break into Cut/Fill Volumes using the new Volume
>>> Calculation Tool. I am trying to attain the volume of a large on-site
>>> pond. No problem with Pix4D but cannot with QGIS.
>>>
>>> My Pix4D Z files are: DTM (DSM) Tif and Contour DXF and SHP
>>>
>>> I have no problem creating the Polygon but cannot place any of the
>>> factors
>>> together to obtain accurate volume with QGIS. Which is 6.7 million
>>> gallons.
>>>
>>> Can anyone help?? Thanks
>>>
>>> --
>>> * TENNESSEE AERIAL IMAGERY*
>>> *Aerial Mapping & Photography For The Construction & Commercial Real
>>> Estate Industries*
>>>
>>> * 865-621-5460   www.tnaerialimagery.com
>>> <http://www.tnaerialimagery.com>   tennesseeaerialimag...@gmail.com
>>> *
>>> *   Licensed - Insured - FAA Certified -
>>> References Available*
>>>
>>> ___
>>> Qgis-user mailing list
>>> Qgis-user@lists.osgeo.org
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>
>>
>
> --
> * TENNESSEE AERIAL IMAGERY*
> *Aerial Mapping & Photography For The Construction & Commercial Real
> Estate Industries*
>
> * 865-621-5460   www.tnaerialimagery.com
> <http://www.tnaerialimagery.com>   tennesseeaerialimag...@gmail.com
> *
> *   Licensed - Insured - FAA Certified -
> References Available*
>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Customisable map theme

[Sebastian Gutwein]

Dario,
Check out the maptiler plugin. https://www.maptiler.com/qgis-plugin/

On Thu, Jun 3, 2021 at 1:53 PM Dario  wrote:

> Thank you for your reply but I made a mistake... base map, not theme map.
> I mean, map like esri, open map, etc.
> Is there anything open that I can customise?
>
> Thank you
>
> _
>
> Il giorno 3 giu 2021, alle ore 17:46, Nicolas Cadieux <
> njacadieux.git...@gmail.com> ha scritto:
>
> Hi,
>
> I suggest you look at the qgis User guide.
> https://docs.qgis.org/3.16/en/docs/user_manual/style_library/style_manager.html
>
> Look under chapter 12 for Styles, Symbols, labels...  and under 18 for
> maps.  You will see that you can customize everything.
>
> Nicolas
>
> On 2021-06-03 10:45 a.m., Dario wrote:
> > Is there any website or any way to customise map theme, i.e. building
> colour, background, road names?
> >
> > Thank you
> >
> > _
> > ___
> > Qgis-user mailing list
> > Qgis-user@lists.osgeo.org
> > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> --
> Nicolas Cadieux
> https://gitlab.com/njacadieux
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] [QGIS-Developer] Earth, Sun, Moon & Planets Plugin

[Sebastian Gutwein]

That sounds like a very interesting plugin. Do you think if the hillshade
renderer had data defined values enabled your plugin would be able to
provide the altitude and azimuth of the sun at a specific time?
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

[Qgis-user] Help with new plugin for AEC project syncing

[Sebastian Gutwein]

Hello,
I am writing on behalf of a developer working on creating a new plugin that
connects QGIS to Speckle. Speckle is an opensource GIT like system for
Architecture, Engineering, and Construction (AEC) that syncs geometry and
other data between various proprietary and open source software including
Blender, Revit, AutoCAD and Rhino. https://speckle.systems/
A few months ago I wrote to them to see if they were interested in having a
plugin (connector in their terms) that syncs between Speckle and QGIS. They
were excited about this and have started working on it.
See the thread here: https://speckle.community/t/qgis-connector-wip/1619

They are looking for advice and If you have experience writing plugins or
work in GIS and the AEC industry they would love to hear your thoughts!

-Sebastian
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Themes, visibility, layout, report, atlas and Layer ID vs Layer name

[Sebastian Gutwein]

Jesahel,
This may be something you already do and I don't know if this would save
you any time but I often set up project variables in situations where I am
using a layer across many expressions or layouts.
Project>Properties>Variables
For example when I am referencing a DEM in expression over and over I
create a variable DEM and set to to the layer ID e.g.
'DEM_d44338fa_1bf5_4ea6_b58e_7489ea8b28a8' and then in my expression
reference @DEM in my expressions. While it is still a little annoying to
have to change the variable when I change the DEM I only have to change it
in one place.
-Bas

On Thu, Aug 19, 2021 at 2:23 PM Charles Dixon-Paver 
wrote:

> I would imagine there are just far too many projects and use cases where
> the same layer name is used for multiple layers. Saving and loading themes
> etc is a feature request I imagine. Copying styles between layers is
> supported (and you can save style and layer definitions). I imagine most
> issues can be resolved by just using an expression based id wherever
> possible, with something like this:
>
> QgsProject.instance().mapLayersByName('World Map')[0].id()
>
> On Thu, 19 Aug 2021 at 17:15, Jésahel Benoist  wrote:
>
>> Hello all,
>>
>> QGIS is now my favorite everyday tool. Anyway, there's something that is
>> a real pain in the ass, the choice to use layer ID instead of layer name in
>> layouts/reports/atlas/themes.
>>
>> First, let me explain that I have a lot of layers so I'm using groups, I
>> import/export needed groups with layers definition files and I'm often
>> using the name to track the versions between projects.
>>
>> At this stage, one bad thing is that deleting a layer and reloading is
>> changing its ID and so... All layouts/reports/atlas need to be corrected.
>> So I'm not deleting anymore groups/layers but instead have more dedicated
>> projects, and I have created some scripts and plugins to alter existing
>> layers, and loads/saves styles in DB. Fine but not easy for everybody and
>> needs to correct more projects when needed.
>>
>> Today I discovered that themes are also based on layers ID... But there
>> isn't any way to load/save themes configuration. How to know what was the
>> theme configuration before a change ? Only by peeking around in the project
>> file or some python. But even with a save/load feature, when a modification
>> occurs, all projects need to be corrected.
>>
>> Well, as you can see, for some years that I've been working with QGIS,
>> its use of the layer ID instead of layer name is clearly the most annoying
>> thing in this great software. I think that is also a reason for some
>> features not to be created.
>>
>> I imagine that this is low level and needs a lot of modifications so I'm
>> not asking for a change now. But could a discussion about this be initiated
>> ?
>>
>> Best regards to all,
>>
>> Jésahel
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] How to replicate ARC-GIS Natural Neighbour Interpolation Algorithm in QGIS / DTM from elevation points

[Sebastian Gutwein]

Just so you know all your options :). There is also the Whitebox Tools
plugin for QGIS (you need to install whitebox tools) that has a
NaturalNeighourInterpolation algo. "Creates a raster grid based on Sibson's
natural neighbour method"

On Wed, Sep 8, 2021 at 10:00 AM C Hamilton  wrote:

> In addition to what has already been mentioned, you can use the QGIS SAGA
> Toolbox. Under Raster - Rasterizing, there is a Natural Neighbour
> algorithm. I have not used it, but I have used the Inverse Distance
> Weighted algorithm for magnetometry data which in essence does something
> like what you are wanting to do.
>
> Good luck,
> Calvin
>
> On Wed, Sep 8, 2021 at 4:13 AM Jurijs Kondratenko <
> yurikondrate...@inbox.lv> wrote:
>
>> Hi, I’m building a DTM from random points (with different distances in
>> between) and I like ArcGIS Natural Neighbour algorithm for doing so.
>>
>> Is there any way to replicate it in QGIS?
>> https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-analyst/how-natural-neighbor-works.htm
>>
>> Alternatively, what would be a way to constructing DTM from points,
>> preserving the original points in respective pixels?
>>
>> Thank you!
>>
>> Jurijs Kondratenko
>>
>> Riga Technical University
>>
>>
>>
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Raster calculator difference evaluation

[Sebastian Gutwein]

In case Nicolas' answer wasn't detailed enough I would use the SAGA invert
data/no-data with the no-data value set to 1 on your raster A layer. This
will create a mask with 1 in all the cells that were no-data and no-data in
all the other cells. Then using the raster calculator run Mask Layer *
Layer B = only cells that were no-data in Layer A.

On Sun, Oct 3, 2021 at 12:50 PM Nicolas Cadieux 
wrote:

> Hi,
> I would create a mask with raster A where any value = 1 and nodata = 0.
> Then multiply the raster B by the mask. Anything that comes back as zero
> contains no data in raster A.
>
> Nicolas Cadieux
> https://gitlab.com/njacadieux
>
> Le 3 oct. 2021 à 10:36, Davide Di Mauro 
> a écrit :
>
> 
>
> Hi all,
>
> I have two rasters.
>
> I need to output cells of one raster that are not present in the other.
> How would I go in order to achieve that using the raster calculator (i.e.
> avoiding Python)?
>
> My logic so far is:
>
> if A - B = A then output cells from A deriving from that evaluation and
> NoData everywhere else.
>
> The problem is that in the raster calculator I can only evaluate the
> subtraction and the equality does not evaluate in the same way of the
> subtraction, even if computed in a different instance.
>
> Is there a secret ingredient? Can my logic be rewritten differently? or am
> I way off?
>
>
>
> Cheers
>
> Davide
>
>
>
> *Davide Di Mauro** | **Alluvium Consulting Australia*
>
> *GIS Specialist & Flood Modeller*
>
> *M*  0422 634 107
>
> *E*  davide.dima...@alluvium.com.au
>
> www.alluvium.com.au | Suite 12 - 36 Agnes St, Fortitude Valley - 4006|
> LinkedIn 
>
>
> **
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] help please

[Sebastian Gutwein]

QGIS can definitely do all of those things. We have been using and loving
the Input app but for your purposes a simpler method might work. If you
have the person on the site take a picture of the machine with their phone
(location services should be turned on) you could then collect all of the
pictures in a folder and use the Import Geotagged Photos tool in QGIS to
bring the photos into QGIS and have a point created at each location. Once
you have a point layer you can add any additional data you like. Here is a
blog post that might be useful.
https://opengislab.com/blog/2020/8/23/mapping-and-viewing-geotagged-photos-in-qgis

On Mon, Oct 11, 2021 at 3:55 PM Nicolas Cadieux 
wrote:

> Hi,
>
> Not sure what the question is but yes, these are all very basic things
> that can be done in QGIS with simple queries or spatial queries.  It’s just
> a question on having the data. Would be happy to help out if you need
> training on this kind of thing.
>
> Nicolas Cadieux
> https://gitlab.com/njacadieux
>
> Le 10 oct. 2021 à 20:28, Peter Cramer  a écrit :
>
> 
>
> I have a very basic question about qgis features. Thanks in advance for
> any answers.
>
>
>
> The scenario is that we need to geo locate 6,000 machines in various
> locations throughout Australia.
>
> I person will be onsite at each machine in the exact position of the
> machine.
>
> We want to create a gps position for each machine and save it or record /
> copy it
>
> Create a list of the 6000 machines in a data base
>
> Use this database to display machine placements on maps at level – country
> – state – suburb and or postcode
>
> Select a single machine and see a description of the location and or
> actual zoomed in map vision of the machine location
>
> Zoom out or in to different levels of geographic area size to see all
> machines within the screen view
>
>
>
>
>
> Second priority level of information
>
> Add additional information to each machine. E.g model number and type of
> machine displayed in map via hover or similar function
>
> Select State – suburb or postcode to view all machines withing that
> specific area.
>
> Build a visual presentation of maps for selected specific areas as above
> point.
>
>
>
> I am thinking that if qgis can do these basic things we can add to our
> wish list of features later.
>
>
>
>
>
>
>
>
>
> Kind Regards
>
>
>
> Peter
>
>
>
> *Peter*
>
> *Cramer*
> Director
>
> 
>
>  *0401771863*
>
> pe...@websurge.com.au
>
> https://websurge.com.au
>
> *Breakfast Point NSW*
>
>
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Importing Polygon into QGIS

[Sebastian Gutwein]

I'm not sure if it is possible in google maps. But that same polygon is
available in Open Street Maps which you can import polygons for in QGIS
using a number of different plugins such as OSMdownloader and QuickOSM.
https://www.geodose.com/2020/08/how-to-download-osm-data-qgis.html
https://learnosm.org/en/osm-data/osm-in-qgis/

On Thu, Dec 23, 2021 at 11:58 AM krishna Ayyala 
wrote:

> I am Reposting this question.
> Regards.
>
> Hello,
> In the google maps, I have typed Leduc, Alberta. I got the the following
> weblink with the red polygon as shown in the map. Is it possible to
> import this polygon into QGIS? If not, Is it possible to get the
> coordinates of the entire polygon so that I can geocode in QGIS. Pasted the
> link below.
>
> Regards.
>
>
> https://www.google.com/maps/place/Leduc,+AB/@53.2670139,-113.5807581,12.5z/data=!4m5!3m4!1s0x539ff973e9beae87:0xacd75f8bc5016a60!8m2!3d53.2646889!4d-113.5527442
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Wrong area count QGIS 3.20+?

[Sebastian Gutwein]

There was some discussion on this in the list serve back in January
 that
resulted in this feature request 
and this pull request . I tested
your polygon, to the best of my limited ability, and the areas were indeed
different in QGIS 3.16 and 3.22 as would be expected from that change .
However it would be hoped that the area measurement would be more accurate
in 3.22.


On Fri, Dec 31, 2021 at 6:49 AM Sadowski Jarosław 
wrote:

> Dear all,
>
>
>
> I am asking for help with QGIS error/bug or verification of proper usage
> of basic QGIS functionality “$area”.
>
> From version 3.20 upwards, it counts areas differently than before (3.18
> calculated area is different than 3.20). Up to version 3.18 everything was
> fine, equal to calculations from ArcGIS Pro (geodesic mode).
>
> Anyone have an idea where the differences come from?
> This is example vector [image: Ikona zip] PL_2180.zip
> :
> Polish borders in EPSG: 2180, in the table of attributes you can see the
> areas (hectares) calculated for different versions of the software.
>
>
>
> with wishes for more success in the new year
>
> Jarosław Sadowski
>
>
> *_*
>
> *Jarosław Sadowski*
> Ekspert ds. Baz Danych i Analiz Przestrzennych | *Biuro Strategii i
> Planowania, Projektowania i Inżynierii Podprogramu Kolejowego*
> *Database and Spatial Analysis Expert **| Railway Subprogramme Strategy &
> Planning, Design & Engineering Department*
> e: jaroslaw.sadow...@cpk.pl
> m: +48 532 720 230
>
> Centralny Port Komunikacyjny Sp. z o.o. z siedzibą w Warszawie, Aleje
> Jerozolimskie 142B, 02-305 Warszawa; nr KRS 759991, Sąd Rejonowy dla
> m.st. Warszawy, XII Wydział Gospodarczy Krajowego Rejestru Sądowego; NIP
> 701-08-94-497; REGON 381918620; kapitał zakładowy 1.277.500.000,00 zł
> Administratorem danych osobowych przekazanych przez Panią/Pana m.in. w
> korespondencji mailowej jest Centralny Port Komunikacyjny Sp. z o.o. z
> siedzibą w Warszawie. Przetwarzamy dane osobowe zgodnie z przepisami
> ogólnego rozporządzenia o ochronie danych (RODO), więcej informacji na ten
> temat znajduje się w zakładce Polityka Prywatności oraz w Klauzuli
> informacyjnej na stronie internetowej www.cpk.pl.
> Treści zawarte w niniejszej wiadomości i załącznikach do niej stanowią
> Tajemnicę Przedsiębiorstwa w rozumieniu ustawy z dnia 16 kwietnia 1993 r. o
> zwalczaniu nieuczciwej konkurencji. Jeśli otrzymałeś tę wiadomość przez
> pomyłkę, bezzwłocznie skontaktuj się z nadawcą wiadomości oraz usuń jej
> treść.
> Solidarity Transport Hub Poland: Centralny Port Komunikacyjny Sp. z o.o.
> with headquarters in Warsaw, Aleje Jerozolimskie 142B, 02-305 Warsaw; KRS
> No. 759991, District Court for the Capital City of Warsaw, 12th
> Commercial Department of the National Court Register; NIP 701-08-94-497;
> REGON 381918620; share capital of PLN 1.277.500.000,00.
> The personal data controller of the personal data provided by you, among
> others, in the e-mail correspondence, is Centralny Port Komunikacyjny Sp. z
> o. o. based in Warsaw. The personal data is processed by us in accordance
> with the provisions of the General Data Protection Regulation (GDPR), for
> further information please read the Privacy Policy tab and the Information
> Clause on the www.cpk.pl website.
> The content of this message and its attachments constitute the Business
> Secret within the meaning of the Act of 16 April 1993 on combating unfair
> competition. If you received this message by mistake, contact the sender of
> the message immediately and delete its content
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Problems with SAGA

[Sebastian Gutwein]

I have not had any problems running SAGA algorithms with the warning. Users
have been wanting some of the features that new versions of SAGA provide so
the developers upgraded to SAGA version (maybe only in the OSGeo version?)
but have not made sure they all work. Qgis is slowly moving towards having
SAGA as a stand alone plug in and you can use the prototype of that called
SAGA NextGen provider plug in as a work around.

On Mon, Jan 3, 2022 at 7:57 AM Grant Boxer  wrote:

> I am trying to run some SAGA algorithms in QGIS v 3.22.2 and I get an
> warning message saying SAGA 7.8.2 is not supported. Is there a work
> around for this?
>
> Cheers Grant
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein
Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com
(631) 241-1018
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Wrong area count QGIS 3.20+?

[Sebastian Gutwein]

Yes that was my read as well except previously it was the Grass method and
now it is Geographic Lib method because that is theoretically more accurate
and is the same method that is used in Postgis and other places. The
switched happened because someone noticed the difference between QGIS’s
calculations and Postgis’s calculations. If I am reading the pull requests
correctly even Grass has switched to the Geographic Lib method. I’m
surprised that ArcGIS Pro uses the same method as the Grass method.

On Mon, Jan 3, 2022 at 2:57 AM Sadowski Jarosław 
wrote:

> Sebastian,
>
>
>
> thank you very much for your precise answer and materials sent - I have
> read them carefully.
>
>
>
> So, as far as I can understand, QGIS has moved in version 3.20 to a new
> way of counting areas (other libraries? GRASS algorithm instead of
> Geographic lib? I have actually noticed a different nomenclature and
> definition of EPSG 2180 for some time in new versions…), that will be more
> accurate?
>
>
>
> I must admit that, for me as a GIS operator, it is surprising and sounds
> like bad news - so far surfaces have always been the same in various GIS
> software, whether or not it was open-source or commercial (ArcGIS Pro). So
> from this moment it will be that I will get different surfaces depending on
> the software it was calculated? :(
>
> with kind regards
> JS
>
> *_*
>
> *Jarosław Sadowski*
> Ekspert ds. Baz Danych i Analiz Przestrzennych | *Biuro Strategii i
> Planowania, Projektowania i Inżynierii Podprogramu Kolejowego*
> *Database and Spatial Analysis Expert |Railway Subprogramme Strategy &
> Planning, Design & Engineering Department*
> e: jaroslaw.sadow...@cpk.pl
>
> *From:* Sebastian Gutwein 
> *Sent:* Saturday, January 1, 2022 7:13 AM
> *To:* Sadowski Jarosław 
> *Cc:* qgis-user@lists.osgeo.org
> *Subject:* Re: [Qgis-user] Wrong area count QGIS 3.20+?
>
>
>
> Nie otrzymujesz często wiadomości e-mail z adresu b...@rdgland.com. Dowiedz
> się, dlaczego jest to ważne <http://aka.ms/LearnAboutSenderIdentification>
>
> There was some discussion on this in the list serve back in January
> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fpipermail%2Fqgis-user%2F2021-January%2F047638.html&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=bUHOuswrG6tPdkebzFYem%2BVsSrgjFhbSLVcKCiu6TW0%3D&reserved=0>
> that resulted in this feature request
> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fqgis%2FQGIS%2Fissues%2F40888&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dY89NsDscjybmwQPMV9PjPOwckPlcv%2B8TEWjl69rTtM%3D&reserved=0>
> and this pull request
> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fqgis%2FQGIS%2Fpull%2F41726&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=IRMFsaJYT7xpylDJCZNvXAUNzdmtTjNbI4VyQMKtedE%3D&reserved=0>.
> I tested your polygon, to the best of my limited ability, and the areas
> were indeed different in QGIS 3.16 and 3.22 as would be expected from that
> change . However it would be hoped that the area measurement would be more
> accurate in 3.22.
>
>
>
>
>
> On Fri, Dec 31, 2021 at 6:49 AM Sadowski Jarosław <
> jaroslaw.sadow...@cpk.pl> wrote:
>
> Dear all,
>
>
>
> I am asking for help with QGIS error/bug or verification of proper usage
> of basic QGIS functionality “$area”.
>
> From version 3.20 upwards, it counts areas differently than before (3.18
> calculated area is different than 3.20). Up to version 3.18 everything was
> fine, equal to calculations from ArcGIS Pro (geodesic mode).
>
> Anyone have an idea where the differences come from?
> This is example vector [image: Ikona zip] PL_2180.zip
> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcpkonline-my.sharepoint.com%2F%3Au%3A%2Fg%2Fpersonal%2Fjaroslaw_sadowski_cpk_pl%2FEVs0-TiEvPdBjMaqXrEvGfoBI0VussbJaYHdDVFfQnEYug%3Fe%3DVDY3rf-&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLC

Re: [Qgis-user] Wrong area count QGIS 3.20+?

[Sebastian Gutwein]

Ok to add to the fun I tried the calculations in ArcPro and interestingly
if I run it using calculate field with this expression
*!shape.geodesicArea@hectares!* I get the QGIS 3.22 value of 31271112 but
if I run Geoprossessing Add Geometry Attributes I get the QGIS 3.16 value
of 31271108.
[image: image.png]
So if you want them to match I guess you should use the python expression
in ArcGIS Pro!

I guess we are back to the old adage of All Measuring is Guessing.
-Bas




On Mon, Jan 3, 2022 at 8:43 AM Sebastian Gutwein  wrote:

> Yes that was my read as well except previously it was the Grass method and
> now it is Geographic Lib method because that is theoretically more accurate
> and is the same method that is used in Postgis and other places. The
> switched happened because someone noticed the difference between QGIS’s
> calculations and Postgis’s calculations. If I am reading the pull requests
> correctly even Grass has switched to the Geographic Lib method. I’m
> surprised that ArcGIS Pro uses the same method as the Grass method.
>
> On Mon, Jan 3, 2022 at 2:57 AM Sadowski Jarosław 
> wrote:
>
>> Sebastian,
>>
>>
>>
>> thank you very much for your precise answer and materials sent - I have
>> read them carefully.
>>
>>
>>
>> So, as far as I can understand, QGIS has moved in version 3.20 to a new
>> way of counting areas (other libraries? GRASS algorithm instead of
>> Geographic lib? I have actually noticed a different nomenclature and
>> definition of EPSG 2180 for some time in new versions…), that will be more
>> accurate?
>>
>>
>>
>> I must admit that, for me as a GIS operator, it is surprising and sounds
>> like bad news - so far surfaces have always been the same in various GIS
>> software, whether or not it was open-source or commercial (ArcGIS Pro). So
>> from this moment it will be that I will get different surfaces depending on
>> the software it was calculated? :(
>>
>> with kind regards
>> JS
>>
>> *_*
>>
>> *Jarosław Sadowski*
>> Ekspert ds. Baz Danych i Analiz Przestrzennych | *Biuro Strategii i
>> Planowania, Projektowania i Inżynierii Podprogramu Kolejowego*
>> *Database and Spatial Analysis Expert |Railway Subprogramme Strategy &
>> Planning, Design & Engineering Department*
>> e: jaroslaw.sadow...@cpk.pl
>>
>> *From:* Sebastian Gutwein 
>> *Sent:* Saturday, January 1, 2022 7:13 AM
>> *To:* Sadowski Jarosław 
>> *Cc:* qgis-user@lists.osgeo.org
>> *Subject:* Re: [Qgis-user] Wrong area count QGIS 3.20+?
>>
>>
>>
>> Nie otrzymujesz często wiadomości e-mail z adresu b...@rdgland.com. Dowiedz
>> się, dlaczego jest to ważne
>> <http://aka.ms/LearnAboutSenderIdentification>
>>
>> There was some discussion on this in the list serve back in January
>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fpipermail%2Fqgis-user%2F2021-January%2F047638.html&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=bUHOuswrG6tPdkebzFYem%2BVsSrgjFhbSLVcKCiu6TW0%3D&reserved=0>
>> that resulted in this feature request
>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fqgis%2FQGIS%2Fissues%2F40888&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dY89NsDscjybmwQPMV9PjPOwckPlcv%2B8TEWjl69rTtM%3D&reserved=0>
>> and this pull request
>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fqgis%2FQGIS%2Fpull%2F41726&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=IRMFsaJYT7xpylDJCZNvXAUNzdmtTjNbI4VyQMKtedE%3D&reserved=0>.
>> I tested your polygon, to the best of my limited ability, and the areas
>> were indeed different in QGIS 3.16 and 3.22 as would be expected from that
>> change . However it would be hoped that the area measurement would be more
>> accurate in 3.22.
>>
>>
>>
>>
>>
>> On Fri, Dec 31, 2021 at 6:49 AM Sadowski Jarosław <
>> jaroslaw.sadow...@cpk.pl> wrote:
>>
>> Dear all,
>>
>>
>>
>> I 

Re: [Qgis-user] Wrong area count QGIS 3.20+?

[Sebastian Gutwein]

Looks like ArcGIS Pro 2.62.

On Mon, Jan 3, 2022 at 10:21 AM Zoltan  wrote:

> Hi Bas,
> Please say which version of ArcPro - I might be heading for these type of
> issues in the next few months.
>
> Thanks and regards,
> Zoltan
>
> On 2022-01-03 16:46, Sebastian Gutwein wrote:
>
> Ok to add to the fun I tried the calculations in ArcPro and interestingly
> if I run it using calculate field with this expression
> *!shape.geodesicArea@hectares!* I get the QGIS 3.22 value of 31271112 but
> if I run Geoprossessing Add Geometry Attributes I get the QGIS 3.16 value
> of 31271108.
> [image: image.png]
> So if you want them to match I guess you should use the python expression
> in ArcGIS Pro!
>
> I guess we are back to the old adage of All Measuring is Guessing.
> -Bas
>
>
>
>
> On Mon, Jan 3, 2022 at 8:43 AM Sebastian Gutwein  wrote:
>
>> Yes that was my read as well except previously it was the Grass method
>> and now it is Geographic Lib method because that is theoretically more
>> accurate and is the same method that is used in Postgis and other places.
>> The switched happened because someone noticed the difference between QGIS’s
>> calculations and Postgis’s calculations. If I am reading the pull requests
>> correctly even Grass has switched to the Geographic Lib method. I’m
>> surprised that ArcGIS Pro uses the same method as the Grass method.
>>
>> On Mon, Jan 3, 2022 at 2:57 AM Sadowski Jarosław <
>> jaroslaw.sadow...@cpk.pl> wrote:
>>
>>> Sebastian,
>>>
>>>
>>>
>>> thank you very much for your precise answer and materials sent - I have
>>> read them carefully.
>>>
>>>
>>>
>>> So, as far as I can understand, QGIS has moved in version 3.20 to a new
>>> way of counting areas (other libraries? GRASS algorithm instead of
>>> Geographic lib? I have actually noticed a different nomenclature and
>>> definition of EPSG 2180 for some time in new versions…), that will be more
>>> accurate?
>>>
>>>
>>>
>>> I must admit that, for me as a GIS operator, it is surprising and sounds
>>> like bad news - so far surfaces have always been the same in various GIS
>>> software, whether or not it was open-source or commercial (ArcGIS Pro). So
>>> from this moment it will be that I will get different surfaces depending on
>>> the software it was calculated? :(
>>>
>>> with kind regards
>>> JS
>>>
>>> *_*
>>>
>>> *Jarosław Sadowski*
>>> Ekspert ds. Baz Danych i Analiz Przestrzennych | *Biuro Strategii i
>>> Planowania, Projektowania i Inżynierii Podprogramu Kolejowego*
>>> *Database and Spatial Analysis Expert |Railway Subprogramme Strategy &
>>> Planning, Design & Engineering Department*
>>> e: jaroslaw.sadow...@cpk.pl
>>>
>>> *From:* Sebastian Gutwein 
>>> *Sent:* Saturday, January 1, 2022 7:13 AM
>>> *To:* Sadowski Jarosław 
>>> *Cc:* qgis-user@lists.osgeo.org
>>> *Subject:* Re: [Qgis-user] Wrong area count QGIS 3.20+?
>>>
>>>
>>>
>>> Nie otrzymujesz często wiadomości e-mail z adresu b...@rdgland.com. Dowiedz
>>> się, dlaczego jest to ważne
>>> <http://aka.ms/LearnAboutSenderIdentification>
>>>
>>> There was some discussion on this in the list serve back in January
>>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fpipermail%2Fqgis-user%2F2021-January%2F047638.html&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=bUHOuswrG6tPdkebzFYem%2BVsSrgjFhbSLVcKCiu6TW0%3D&reserved=0>
>>> that resulted in this feature request
>>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fqgis%2FQGIS%2Fissues%2F40888&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637766145287655707%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dY89NsDscjybmwQPMV9PjPOwckPlcv%2B8TEWjl69rTtM%3D&reserved=0>
>>> and this pull request
>>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fqgis%2FQGIS%2Fpull%2F41726&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7Cf7cc24b07b7c42e8902a08d9ccedca61%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C6377661452876

Re: [Qgis-user] Wrong area count QGIS 3.20+?

[Sebastian Gutwein]

Happy to help!

On Tue, Jan 4, 2022 at 2:04 PM Sadowski Jarosław 
wrote:

> Dear Sebastian,
>
>
>
> I am very grateful to you for taking on my case in such depth.
>
> Now everything is clear to me, thank you kindly for your answer.
>
> I will spread this knowledge further on local QGIS community and Polish
> internet QGIS forums.
>
>
>
> with best regards
>
> and greetings to the entire community of this amazing open-source project
>
> Jarosław Sadowski
>
> *_*
>
> *Jarosław Sadowski*
> Ekspert ds. Baz Danych i Analiz Przestrzennych | *Biuro Strategii i
> Planowania, Projektowania i Inżynierii Podprogramu Kolejowego*
> *Database and Spatial Analysis Expert |Railway Subprogramme Strategy &
> Planning, Design & Engineering Department*
> e: jaroslaw.sadow...@cpk.pl
>
> *From:* Sebastian Gutwein 
> *Sent:* Monday, January 3, 2022 3:47 PM
> *To:* Sadowski Jarosław 
> *Cc:* qgis-user@lists.osgeo.org
> *Subject:* Re: [Qgis-user] Wrong area count QGIS 3.20+?
>
>
>
> Nie otrzymujesz często wiadomości e-mail z adresu b...@rdgland.com. Dowiedz
> się, dlaczego jest to ważne <http://aka.ms/LearnAboutSenderIdentification>
>
> Ok to add to the fun I tried the calculations in ArcPro and interestingly
> if I run it using calculate field with this expression 
> *!shape.geodesicArea@hectares
> !* I get the QGIS 3.22 value of 31271112
> but if I run Geoprossessing Add Geometry Attributes I get the QGIS 3.16
> value of 31271108.
>
> So if you want them to match I guess you should use the python expression
> in ArcGIS Pro!
>
>
>
> I guess we are back to the old adage of All Measuring is Guessing.
>
> -Bas
>
>
>
>
>
>
>
> On Mon, Jan 3, 2022 at 8:43 AM Sebastian Gutwein  wrote:
>
> Yes that was my read as well except previously it was the Grass method and
> now it is Geographic Lib method because that is theoretically more accurate
> and is the same method that is used in Postgis and other places. The
> switched happened because someone noticed the difference between QGIS’s
> calculations and Postgis’s calculations. If I am reading the pull requests
> correctly even Grass has switched to the Geographic Lib method. I’m
> surprised that ArcGIS Pro uses the same method as the Grass method.
>
>
>
> On Mon, Jan 3, 2022 at 2:57 AM Sadowski Jarosław 
> wrote:
>
> Sebastian,
>
>
>
> thank you very much for your precise answer and materials sent - I have
> read them carefully.
>
>
>
> So, as far as I can understand, QGIS has moved in version 3.20 to a new
> way of counting areas (other libraries? GRASS algorithm instead of
> Geographic lib? I have actually noticed a different nomenclature and
> definition of EPSG 2180 for some time in new versions…), that will be more
> accurate?
>
>
>
> I must admit that, for me as a GIS operator, it is surprising and sounds
> like bad news - so far surfaces have always been the same in various GIS
> software, whether or not it was open-source or commercial (ArcGIS Pro). So
> from this moment it will be that I will get different surfaces depending on
> the software it was calculated? :(
>
> with kind regards
> JS
>
> *_____*
>
> *Jarosław Sadowski*
> Ekspert ds. Baz Danych i Analiz Przestrzennych | *Biuro Strategii i
> Planowania, Projektowania i Inżynierii Podprogramu Kolejowego*
> *Database and Spatial Analysis Expert |Railway Subprogramme Strategy &
> Planning, Design & Engineering Department*
> e: jaroslaw.sadow...@cpk.pl
>
> *From:* Sebastian Gutwein 
> *Sent:* Saturday, January 1, 2022 7:13 AM
> *To:* Sadowski Jarosław 
> *Cc:* qgis-user@lists.osgeo.org
> *Subject:* Re: [Qgis-user] Wrong area count QGIS 3.20+?
>
>
>
> Nie otrzymujesz często wiadomości e-mail z adresu b...@rdgland.com. Dowiedz
> się, dlaczego jest to ważne <http://aka.ms/LearnAboutSenderIdentification>
>
> There was some discussion on this in the list serve back in January
> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fpipermail%2Fqgis-user%2F2021-January%2F047638.html&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7C72f10e545ec748e873ca08d9cec7e6d0%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C637768180240837962%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=n9NfD1jSBsKsrD9ujGf50us0H5McoNOnjZTet%2BvXFlo%3D&reserved=0>
> that resulted in this feature request
> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fqgis%2FQGIS%2Fissues%2F40888&data=04%7C01%7Cjaroslaw.sadowski%40cpk.pl%7C72f10e545ec748e873ca08d9cec7e6d0%7Cfa79825

Re: [Qgis-user] Wrong area count QGIS 3.20+?

[Sebastian Gutwein]

Thanks for the clarification Andrea. Reading the threads and pull requests
is a fascinating look into the muddy waters of really small numbers and
curved areas.

On Tue, Jan 4, 2022 at 10:07 PM Andrea Giudiceandrea 
wrote:

> Sebastian Gutwein
> <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=from:%22Sebastian+Gutwein%22>
>  Mon, 03 Jan 2022 05:44:08 -0800
> <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=date:20220103>
>
> If I am reading the pull requests
> correctly even Grass has switched to the Geographic Lib method.
>
>
> Hi Sebastian,
> AFAIK, GRASS GIS has not yet switched to the GeographicLib routines.
> See the feature request https://github.com/OSGeo/grass/issues/1235 not
> yet closed and the related PR https://github.com/OSGeo/grass/pull/1283 in
> draft status and not yet merged.
>
> Sadowski Jarosław
> <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=from:%22Sadowski+Jaros%C5%82aw%22>
>  Sun, 02 Jan 2022 23:58:06 -0800
> <https://www.mail-archive.com/search?l=qgis-user@lists.osgeo.org&q=date:20220102>
>
> I must admit that, for me as a GIS operator, it is surprising and sounds like
> bad news - so far surfaces have always been the same in various GIS software,
> whether or not it was open-source or commercial (ArcGIS Pro). So from this
> moment it will be that I will get different surfaces depending on the software
> it was calculated? :(
>
>
> Hi Jarosław,
> it seems to me the calculation of a polygon area on the ellipsoid was
> always not the same in different GIS software.
> See, for example, these long threads at
> https://www.mail-archive.com/qgis-developer@lists.osgeo.org/msg43978.html
> and
> https://www.mail-archive.com/qgis-developer@lists.osgeo.org/msg43978.html
>
> Best regards.
>
>
> Andrea Giudiceandrea
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein
Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com
(631) 241-1018
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] QGIS 3.22 breaks CRS Transform Files?

[Sebastian Gutwein]

Thanks everyone for working on this. The transformation warnings and
dialogs are very confusing especially for new users and ultimately teaches
them to ignore QGIS warnings.
Like John I have been looking for some documentation I could point my
students towards. Has anyone found a good resource?
-Bas

On Thu, Jan 20, 2022 at 5:03 AM DelazJ  wrote:

> Hi,
>
> Le jeu. 20 janv. 2022 à 10:15, John Layt  a
> écrit :
>
>> On Wed, 19 Jan 2022 at 21:25, Andrea Giudiceandrea 
>> wrote:
>>
>>> John Layt
>>> 
>>>  Wed, 19 Jan 2022 11:25:06 -0800
>>> 
>>>
>>>
>>> 1) When opening projects with the OSTN15 transform in them, we get a
>>> warning dialog that the grid file OSTN15_NTv2_OSGBtoETRS.gsb can't be found
>>> and must be manually installed. The dialog tries to be helpful by including
>>> a download link, but it's to the uk_os_OSTN15_NTv2_OSGBtoETRS.tif file
>>> instead, so you need to manually source the gsb file.
>>>
>>>
>>> Hi John,
>>> please see these two related bug reports not yet fixed:
>>> https://github.com/qgis/QGIS/issues/45470 and
>>> https://github.com/qgis/QGIS/issues/44061
>>>
>>> Regards.
>>>
>>> Andrea Giudiceandrea
>>>
>>
>> Many thanks Andrea, not sure how I missed those! Fingers crossed it gets
>> fixed soon, especially with LTR next month, it's blocking our roll-out.
>>
>> Don't get your fingers crossed! Particularly if it IS blocking you. Don't
> forget that you have the power of change:
> http://nyalldawson.net/2016/08/how-to-effectively-get-things-changed-in-qgis/
>
> Kind regards,
> Harrissou
>
> Cheers!
>>
>> John.
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] How to make diagonals

[Sebastian Gutwein]

This stack exchange answer seems like it would work for you.
https://gis.stackexchange.com/a/365955

On Fri, Feb 4, 2022 at 11:33 AM chris hermansen 
wrote:

> Might generalizing the lines (Poiker Douglas or similar) yield four line
> rectangles?
>
> On Thu, Feb 3, 2022, 23:44 Etienne Trimaille 
> wrote:
>
>> Maybe "oriented_bbox" to get first a proper rectangle ?
>>
>> https://docs.qgis.org/testing/en/docs/user_manual/expressions/functions_list.html#oriented-bbox
>>
>> But then, you might have some tiny leftover. It depends if you care or
>> not.
>>
>> Otherwise, you need to use the angle at each points.
>>
>> I thought there is the longest line possible within a polygon, but I
>> can't find it. I did it manually a few years ago.
>>
>> Le jeu. 3 févr. 2022 à 23:29, Dario C  a écrit :
>>
>>> Hi,
>>> I have several rectangles (almost squared) and I'd like to represent
>>> their diagonals.
>>>
>>> I started to do with geometry generator with:
>>> make_line(point_n($geometry,1),point_n($geometry,4))
>>> and
>>> make_line(point_n($geometry,2),point_n($geometry,5))
>>>
>>> Unfortunately, even if they look rectangular, actually they have more
>>> then 4 points and, moreover, points do not always have the same order.
>>>
>>> here below an example:
>>> [image: image.png]
>>>
>>> Is there any expression in order to pick the two longest segments
>>> connecting all the points of the geometry?
>>>
>>>
>>> Thanks
>>> ___
>>> Qgis-user mailing list
>>> Qgis-user@lists.osgeo.org
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein
Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com
(631) 241-1018
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Raster calculation: if Layer1 is > 1, then Layer2 should be 0

[Sebastian Gutwein]

Reclassify your Layer 1 to be anything greater than 1 = 0 everything else
equals 1. This will give you a binary 1 and 0 raster (Layer 3)  that you
can use in the raster calculator: Layer 2 * Layer 3.  Anywhere where layer
3 is 1 your layer 2 values will stay the same and anywhere where layer 3 is
0 your layer 2 values will become 0.

On Thu, Feb 17, 2022 at 3:19 PM Bernd Vogelgesang 
wrote:

> Hi folk,
>
> I hardly never work with raster calculations, and unfortunately there is
> nowhere a collection of syntax examples for different use cases to be found
> (documentation :( ).
>
> Anything apart from +-*/ is beyond my scope.
>
> So,
>
> I made a viewshed analysis over a digital surface model (try the awesome
> Visibility Analysis plugin form Zoran Čučković and buy him a beer!)
>
> A lot of "views" are caught by tree canopy, but I am only interest in the
> flat grounds.
>
> So I substracted the surface model layer from the ground model layer, and
> this is Layer 1.
>
> Giving a threshold of 1 meters difference for inaccuracities, all pixels
> in this layer above 1 should result in 0 (zero) in my viewshed raster
> (Layer 2)
>
> Please give me some hints,
>
> Cheers,
>
> Bernd
>
>
> 
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

[Qgis-user] QGIS site down?

[Sebastian Gutwein]

I'm getting an error on the qgis.org site. Anyone else experiencing this?
[image: image.png]
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] QGIS site down?

[Sebastian Gutwein]

Thanks everyone. Looks good to me now. Glad it is a known intermittent
issue.

On Thu, Feb 24, 2022 at 11:39 AM C Hamilton  wrote:

> I had that occur a number of times yesterday, but after waiting a few
> minutes it came back. I haven't noticed it yet today.
>
> On Thu, Feb 24, 2022 at 10:20 AM Sebastian Gutwein 
> wrote:
>
>> I'm getting an error on the qgis.org site. Anyone else experiencing
>> this?
>> [image: image.png]
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Projection conversion

[Sebastian Gutwein]

Mike,
QGIS operates on two levels: The data level and the visualization level. If
you added your US outline to QGIS it will automatically show it to you in
the projection the data is in. If all you need is to create an output that
looks like it is in a different projection you can change the projection of
the project. This is done in Project>Project Properties>CRS. Or look in the
bottom right hand corner for the image that looks like a world with a hat
and click to bring up the projection dialog. If you need the actual data to
be in a different projection right click on the layer and select
Export>Save Features As and in the dialog select the desired reference
system (CRS).
Here is handout I created going over this in more detail
https://drive.google.com/file/d/1-FJtKGP1b2xDgswvZ3sUmAqff9S1zQS6/view?usp=sharing
Good luck.
-Bas

On Sun, Feb 27, 2022 at 1:41 PM Mike Breiding - Morgantown WV <
epicroadtr...@gmail.com> wrote:

> Greetings,
>
> I wish to change the projection of  a shape from from EPSG:4269 - NAD83 -
> Geographic to
> Albers Equal-Area Conic projection.
> The reason for this is to get a USA states outline map which is shorter
> and higher in outline than the current projection for use as a graphic in a
> brochure.
> Thanks,
> WV-Mike
>
> --
> Mike Breidingwww.EpicRoadTrips.us
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Projection conversion

[Sebastian Gutwein]

Glad to help and nice chicken of the woods you have in your profile
picture.

On Sun, Feb 27, 2022 at 3:55 PM Mike Breiding - Morgantown WV <
epicroadtr...@gmail.com> wrote:

> Greetings, Sebastian.
> I followed your instructions and changed the Project projection to
> NAD27/Conus Albers which gave me the desired results as it relates to the
> shape of the USA.
>
> Thanks for your help with this.
> WV-Mike
> ===
> On 2/27/2022 12:34 PM, Sebastian Gutwein wrote:
>
> Mike,
> QGIS operates on two levels: The data level and the visualization level.
> If you added your US outline to QGIS it will automatically show it to you
> in the projection the data is in. If all you need is to create an output
> that looks like it is in a different projection you can change the
> projection of the project. This is done in Project>Project Properties>CRS.
> Or look in the bottom right hand corner for the image that looks like a
> world with a hat and click to bring up the projection dialog. If you need
> the actual data to be in a different projection right click on the layer
> and select Export>Save Features As and in the dialog select the desired
> reference system (CRS).
> Here is handout I created going over this in more detail
> https://drive.google.com/file/d/1-FJtKGP1b2xDgswvZ3sUmAqff9S1zQS6/view?usp=sharing
> Good luck.
> -Bas
>
> On Sun, Feb 27, 2022 at 1:41 PM Mike Breiding - Morgantown WV <
> epicroadtr...@gmail.com> wrote:
>
>> Greetings,
>>
>> I wish to change the projection of  a shape from from EPSG:4269 - NAD83
>> - Geographic to
>> Albers Equal-Area Conic projection.
>> The reason for this is to get a USA states outline map which is shorter
>> and higher in outline than the current projection for use as a graphic in a
>> brochure.
>> Thanks,
>> WV-Mike
>>
>> --
>> Mike Breidingwww.EpicRoadTrips.us
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>
> --
> Mike Breidingwww.EpicRoadTrips.us
>
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] [QGIS-Developer] Announce - migrate our mailing lists to Discourse

[Sebastian Gutwein via QGIS-User]

I am excited about the move to discourse and the possibilities that it
opens up. I am concerned and sad to hear so many voices upset about the
move. I hope the transition goes well and we don't lose too many voices.
-Bas

On Thu, Apr 11, 2024 at 12:26 AM Adam Nielsen via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> > I didn't see it coming honestly.  Make it hard for them so only the
> > best ones can join us?
>
> Not quite - make asking questions take more effort than doing your own
> research, so lazy people are encouraged to find their own answers
> before asking.  It's not about excluding people, it's about minimising
> the types of questions that could be solved by looking at the
> documentation or by doing a web search.
>
> > > In my own experience, if it's too easy for people to ask questions,
> > > then they tend to do so before doing their own research.
> >
> > Don't you think it is already the case. Moderators everywhere are
> > doing this job to remind people to just do their homework before
> > asking.
>
> Yes and this is my argument exactly.  Those places make it too easy for
> lazy people to ask questions, and so you end up with moderators
> spending large amounts of time reminding people of basic things.  In my
> opinion, instead of bringing in more moderators, it is better to reduce
> the amount of these low-effort questions.
>
> > Would you want to make life harder for those who still want to learn,
> > but just don't get the mailing list stuff?
>
> It is very easy to subscribe to a mailing list.  If you can't figure
> that out, I think you will have no hope understanding QGIS.  But it is
> not about making it hard or complicated, it is making it so that people
> are encouraged to do at least a little work on their own before asking
> questions.
>
> > From my experience, stupid questions are either not answered, or very
> > gently refocused on the good way of asking questions, which is also
> > something I like in our communities.
>
> That is true, but it seems this list does not get very many questions
> like that.  If we start to get a lot of them, the community's attitude
> could change.
>
> > > This is why generally speaking, it's often better to add some
> > > hurdles in before people can ask questions, such as figuring out
> > > how to subscribe to an e-mail list.
> >
> > This is a radical point of view. Another option is to make them pass
> > through helpers that reminds them to search before asking. Something
> > positive, like when you create an issue in gitlab and the UI gently
> > propose you existing similar questions when you start typing.
>
> That is fine too, as long as people cannot ignore it and just keep
> typing their simple question.
>
> Look at the Microsoft support forums for example.  They are next to
> useless, because it is so easy to post questions.  There are hundreds
> of questions asking the same thing, and almost as many "answers" by
> people who have no idea what they are talking about, but are trying to
> be helpful by suggesting something that worked for them once when they
> had a completely different problem.
>
> So although their forums are easily searchable, it is incredibly rare
> to get a usable answer from them because the posts are of such low
> quality and often outright wrong.
>
> Contrast that to StackExchange.  Yes, the Q&A format is limited,
> however by removing low-effort posts and incorrect answers, their
> content is consistently high quality and extremely useful.  Many times
> I have done a web search and found my answer on a StackExchange site.
>
> Perhaps these are two extremes and the best solution is somewhere in
> the middle, but hopefully it at least explains the reasons behind my
> arguments.
>
> > > If you still think Discourse is the way to go, I would suggest
> > > running it in parallel with the e-mail list for a few months, and
> > > compare how many questions get answered there vs here.
> >
> > We can't mirror with both sides being written. If we go this way, we
> > would all have to follow both channels.
>
> I think it would be a mistake to switch entirely in one go.  I am not
> saying we run both permanently, just temporarily, to give it a trial
> run and see how it goes.  This will give the list users time to try out
> Discourse and see how it goes.  Many of the list people will likely set
> up Discourse to work like a mailing list anyway, so they won't have to
> follow both channels - everything will come into the same inbox.
>
> If Discourse works, then as more and more questions are asked there,
> fewer questions will be asked on the lists, and perhaps at some point
> they can be turned off and nobody will even notice.
>
> I am reminded of the recent Reddit debacle, where management forced
> their changes onto their community of volunteers, and as a result, a
> large majority of them left the community entirely.  It does seem like
> there is a similar push here, to move everyone to Discourse whether we
> like it or n

Re: [Qgis-user] hide attribute from popup window

[Sebastian Gutwein via Qgis-user]

If you change it to hidden in the layer properties>attribute form> widget
type you won't see it in the identify window or feature form window.
The default is text.

On Sun, Mar 20, 2022 at 8:18 PM Stephen Sacks via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> I would like to limit which fields appear in the popup window when I click
> on a feature.  In the layer's attribute table, I can Hide a field but it
> still appears in the popup window when I click a feature with the Identify
> tool.
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

[Qgis-user] Mac OS QGIS installer 3.16

[Sebastian Gutwein via Qgis-user]

Hello,
I have a student that is trying to install QGIS on her Mac OS. Neither the
latest or the long term version are working for some reason. In the fall
she had 3.16 installed and wanted to try to install it again in case there
was an issue with the latest version. However we can't seem to find 3.16 in
the official repository. I would assume because it was after the switch
from the KyngChaos builds they would be in the QGIS repository here:
https://download.qgis.org/downloads/macOS/ but I only see up to 3.8. Should
I then point her to the KyngChaos version?
Thanks
-Bas
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Mac OS QGIS installer 3.16

[Sebastian Gutwein via Qgis-user]

Thanks John and Harrissou.
I should probably put a request into the website to add that link.

On Thu, Apr 21, 2022 at 5:52 AM John Layt via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Hi,
>
> The downloads now live in https://download.qgis.org/downloads/macos/
> (note the lower case macos). Note however the latest live links are at
> https://qgis.org/en/site/forusers/download.html.
>
> Cheers!
>
> John.
>
>
> On Thu, 21 Apr 2022 at 10:44, Sebastian Gutwein via Qgis-user <
> qgis-user@lists.osgeo.org> wrote:
>
>> Hello,
>> I have a student that is trying to install QGIS on her Mac OS. Neither
>> the latest or the long term version are working for some reason. In the
>> fall she had 3.16 installed and wanted to try to install it again in case
>> there was an issue with the latest version. However we can't seem to find
>> 3.16 in the official repository. I would assume because it was after the
>> switch from the KyngChaos builds they would be in the QGIS repository here:
>> https://download.qgis.org/downloads/macOS/ but I only see up to 3.8.
>> Should I then point her to the KyngChaos version?
>> Thanks
>> -Bas
>>
>> ___
>> Qgis-user mailing list
>> Qgis-user@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Raster

[Sebastian Gutwein via Qgis-user]

I know you are beyond this stage but if you check the* Use 0 for
transparency when needed* box in the georeferencer settings it will not
have the black box when you georeference.
[image: image.png]



On Wed, May 25, 2022 at 10:14 AM Nicolas Cadieux via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Hi,
>
>
> Another way is to add an alpha band to the image.  I generally use GIMP to
> do this.  If the Georeferencer sees and alpha band, then, the border will
> use this band.
>
>
> Nicolas
> On 2022-05-24 7:25 a.m., Richard McDonnell via Qgis-user wrote:
>
> Easiest way I can think of doing what you want is to create a VRT of the
> three raster’s.
>
>
>
> *Raster* è *Miscellaneous* è *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 you to use the
> correct transparency value.
>
>
>
> Hope this helps,
>
>
>
> Richard
>
>
>
>
>
> ——
> Richard McDonnell MSc GIS, FME Certified Professional
> *FRM Data Management*
>
> ——
> Oifig na nOibreacha Poiblí
> Office of Public Works
>
> Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
> Jonathan Swift Street, Trim, Co Meath, C15 NX36
> ——
> M +353 87 688 5964 T +353 46 942 2409
> https://gov.ie/opw
>
> ——
> To send me files larger than 30MB, please use the link below
> https://filetransfer.opw.ie/filedrop/richard.mcdonn...@opw.ie
>
> Email Disclaimer:
> https://www.gov.ie/en/organisation-information/439daf-email-disclaimer/
>
> ——
> MSc GIS, FME Certified Professional
>
> ——
> Oifig na nOibreacha Poiblí
> Office of Public Works
>
> Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
> Jonathan Swift Street, Trim, Co Meath, C15 NX36
> ——
> M +353 87 688 5964 T +353 46 942 2409
> https://www.opw.ie
>
> ——
> Email Disclaimer: https://www.opw.ie/en/disclaimer/
>
> *From:* Qgis-user 
>  *On Behalf Of *Lazanu Ciprian-Catalin
> via Qgis-user
> *Sent:* 24 May 2022 11:53
> *To:* Uwe Fischer via Qgis-user 
> ; Uwe Fischer via Qgis-user
>  
> *Subject:* [Qgis-user] Raster
>
>
>
> 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 ... that
> raster has again a black border. I want to merge the three maps in one, but
> it does with a black border between maps.
>
> A solution to this annoying problem?
>
> Thank you
>
>
> https://drive.google.com/drive/folders/1qM1_TeFUng9-xyRXRQCuMrEMwxFeJV7n?usp=sharing
>  images
>
> Meet Google Drive – One place for all your files
> 
>
> Google Drive is a free way to keep your files backed up and easy to reach
> from any phone, tablet, or computer. Start with 15GB of Google storage –
> free.
>
> drive.google.com
>
>
>
> ___
> Qgis-user mailing listqgis-u...@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> --
> Nicolas Cadieuxhttps://gitlab.com/njacadieux
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] polygon fills from different shapefiles

[Sebastian Gutwein via Qgis-user]

And even easier is to put them all in a group then copy the style from one
layer and paste it onto the group. This will apply the style to all layers
in the group.

On Tue, Jun 21, 2022 at 3:22 PM Thayer Young via Qgis-user <
qgis-user@lists.osgeo.org> 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 Style: All Style Categories
> And then you can paste the style to the rest of your layers using:
> Styles: Paste Style: All Style Categories
>
> -Thayer
>
>
> On Tuesday, June 21, 2022 at 03:00:36 PM EDT,
> qgis-user-requ...@lists.osgeo.org 
> wrote:
>
> i have four different geologic maps that i have imported as shapefiles.
> The files have filled polygons that have the name of the geologic formation
> in the attribute tables.  i would like to have a common colour for each
> polygon of identical age/name for all the map sheets.  Each map sheet has a
> similar list of formations, but some of the formations are different for
> each map sheet.
> What is the most efficient way to make the identically named polygons
> displayed with the same colour?  Should i add a column in each attribute
> table and put a formation code in for each one manually or can i add an RGB
> colour for each formation in the attribute table? or, do i need to
> categorize and  classify these in the layer properties table after i have
> added formation code in the attribute table?
> i hope that my question is clear.
>
> --
> Byron Veilleux, MSc. P.Geo
> Conjugate Geologic Services Limited
> Calgary, Alberta Canada
> by...@conjugategeo.com
> Cell:4037108414
> -- next part --
> An HTML attachment was scrubbed...
> URL: <
> http://lists.osgeo.org/pipermail/qgis-user/attachments/20220620/c8b38539/attachment-0001.htm
> >
>
> --
>
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Where is the georeferencer in 3.26

[Sebastian Gutwein via Qgis-user]

Yes - because they added vector georeferencing it is now under the Layer
menu.

On Thu, Jun 30, 2022 at 1:04 PM Richard Greenwood via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Has the raster>georeferencer menu item moved in 3.26? I can't find it in
> my raster menu.
>
> --
> Richard W. Greenwood
> www.greenwoodmap.com
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Keypress event and slowless

[Sebastian Gutwein via Qgis-user]

I have been experiencing the same problem. It seems to occur when there are
a lot of elements in the map. Very painful experience. And I agree that it
seems like it shouldn't need to be calculating while you are typing.

On Wed, Aug 3, 2022 at 7:33 AM Jésahel Benoist via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Hi,
>
> On Windows/QGIS 3.16/QGIS 3.22 LTR, am I the only one having noticed some
> annoying slowness in big projects when typing ? It happens especially in
> layout when changing a legend element name or in the attribute table.
>
> What is really annoying is that each keypress seems to trigger some heavy
> calculation. I think it should only happen when exiting the field, or maybe
> to be able to know what events are triggered to try to correct this,
> because it could be a plugin or a calculated field or anything.
>
> Regards,
>
> Jésahel
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] QGIS and geopackages in sharepoint environement

[Sebastian Gutwein via Qgis-user]

Although it is not recommended we use google drive and as of the latest
release it works ok for most files including Geopackage. In past versions
any time a layer on a geopackage was opened this would cause the file to be
marked as changed and upload the whole file. In the current version (3.26)
this only happens when edit mode is turned on. However saving after edits
is much slower when it is in the Google drive. It appears that the .wal
file decides to load the entire file into itself when in the google drive
before writing the change to the file.  Of course this doesn't prevent
people from overwriting each other's changes if two people are concurrently
editing on different machines.
The file path doesn't seem to be a problem if the files are in the same
location relative to the project file on different machines.
I would be interested if at some point someone created a solution that
allowed for diffs on geopackages using Lutra's
https://github.com/MerginMaps/geodiff . I imagine if that worked there
would be an cloud unsynced local version and a cloud synced local version
that you could trigger a diff operation against.

On Fri, Aug 5, 2022 at 3:28 PM Gert-Jan van der Weijden (GISNederland) via
Qgis-user  wrote:

> Hi,
>
> My employer is moving from "traditional" network shares to a 100%
> Sharepoint/MS Teams solution.
>
> The idea behind Sharepoint (and OneDrive) is that the content (files) is
> synchronised between server and local PC's.
> 1. For large files this means a lot of network traffic on each single
> edit.
>
> 2. The path to a dataset (geopackage, shapefile, geotiff) to be used in a
> QGis project (.qgz) is the local path b(c:\users\*joe*\data\etc).
> However, when Joe's college Jane opens this QGis project the next day, the
> data is synchronized to her local path (c:\users\jane\data\etc.), but the
> QGis project file (.qgz) is still pointing to c:\users\joe, which doesn't
> exist on Jane's laptop)
> Solutions?
> a. Microsoft used to advertise a way to make drive mappings to Sharepoint
> sites. That solution was based upon an Internet Explorer library, and is no
> longer supported. I tried to use it; it's clumsy and unreliable.
>
> https://support.microsoft.com/en-us/office/map-a-network-drive-to-a-sharepoint-library-751148de-f579-42f9-bc8c-fcd80ccf0f53
>
> b. 3rd party solutions like ZeeDrive (
> https://www.thinkscape.com/Map-Network-Drives-To-Office-365-OneDrive/)
> and CloudDriveMapper (https://www.iamcloud.com/cloud-drive-mapper/).
> I haven't tried these solutions yet, bu will do so somewhere this month.
>
> By the way, also on the "commercial side of Planet GIS" (Esri's ArcGIS)
> there's no solution for this problem (yet):
> https://support.esri.com/en/technical-article/25605
>
> The problems as described on that Esri support page are prette much the
> same as in QGis+Sharepoint.
> The so-called "solution or workaround" is hardly to be taken seriously by
> a professional GIS user
>
>
> Apart from the Sharepoint-problems as described above, Geopackages are not
> designed for a multi-user environment.
>
>
> Kind regards,
>
> Gert-Jan
>
>
>
> On 5-8-2022 19:49, chris hermansen via Qgis-user wrote:
>
> Guido and list,
>
> On Fri, Aug 5, 2022 at 6:35 AM Guido Häfliger via Qgis-user <
> qgis-user@lists.osgeo.org> wrote:
>
>> Hello
>>
>>
>>
>> We are discussing in our company to switch from local fileserver/NAS to
>> Sharepoint (hosted in cloud). Will QGIS-projects and geopackages work on
>> sharepoint environment or do we have to expect a lot of troubles? Have
>> anybody experience with QGIS and geopackages on sharepoint? Will we
>> encounter problems if geopackages are opened by several users?
>>
>>
> I can't speak to the use of QGIS with Sharepoint, but we've tried using
> both QGIS and ESRI products with Google Drive for Desktop and the name
> remapping done by GDD in Windows Explorer is not picked up by the file
> manager component used by them; so the file names do not appear as expected.
>
> I've run across the same thing with QGIS and the Google Drive - Nautilus
> connection in GNOME / Linux and not found a solution.
>
> I suggest you try before you buy.
>
>
> --
> Chris Hermansen · clhermansen "at" gmail "dot" com
>
> C'est ma façon de parler.
>
> ___
> Qgis-user mailing listqgis-u...@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qg

Re: [Qgis-user] QGIS and geopackages in sharepoint environement

[Sebastian Gutwein via Qgis-user]

I should clarify we are using Google Drive for Desktop on Windows and Mac
machines.

On Fri, Aug 5, 2022 at 5:32 PM chris hermansen 
wrote:

> Oops I spoke to soon, please see below...
>
> On Fri, Aug 5, 2022 at 2:27 PM chris hermansen 
> wrote:
>
>> Sebastian and list,
>>
>> On Fri, Aug 5, 2022 at 2:19 PM Sebastian Gutwein  wrote:
>>
>>> Although it is not recommended we use google drive and as of the latest
>>> release it works ok for most files including Geopackage. In past versions
>>> any time a layer on a geopackage was opened this would cause the file to be
>>> marked as changed and upload the whole file. In the current version (3.26)
>>> this only happens when edit mode is turned on. However saving after edits
>>> is much slower when it is in the Google drive. It appears that the .wal
>>> file decides to load the entire file into itself when in the google drive
>>> before writing the change to the file.  Of course this doesn't prevent
>>> people from overwriting each other's changes if two people are concurrently
>>> editing on different machines.
>>> The file path doesn't seem to be a problem if the files are in the same
>>> location relative to the project file on different machines.
>>> I would be interested if at some point someone created a solution that
>>> allowed for diffs on geopackages using Lutra's
>>> https://github.com/MerginMaps/geodiff . I imagine if that worked there
>>> would be an cloud unsynced local version and a cloud synced local version
>>> that you could trigger a diff operation against.
>>>
>>
>> The problem with Google Drive is actually a problem with Google Drive for
>> Desktop, which is a "file streaming application" and not with the other
>> approach which is synchronization, similar to Dropbox.  In the
>> synchronization approach your changed files on your computer are backed up
>> to the cloud Google Drive.
>>
>> Google Drive for Desktop is a plugin for Windows Navigator that makes
>> files in Google Drive appear as though they are on your computer in the G:
>> drive (or wherever else you might set it up).  If you double-click on one
>> of those files, say foo.docx, then that file will open in Word.  But if you
>> use QGIS to add a layer, the file names that appear in the  "Open OGR
>> Vector Layer" window (for example) don't look like what you might expect.
>>
>> *Note I just tried this on Ubuntu 22.04 with QGIS 3.26.1 and WHOOPS it
>> looks to be working here, so maybe it's not an issue in Windows any longer
>> either.*
>>
>>>
>> I was wrong there.
>
> Things look good until I picked a .shp file to show; the file name that
> came up was a great long thing with lots of x's and y's and what not and
> QGIS would not open it.
>
> Anyway this is Ubuntu not Windows so YMMV.
>
>
> --
> Chris Hermansen · clhermansen "at" gmail "dot" com
>
> C'est ma façon de parler.
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Updating QGIS version

[Sebastian Gutwein via Qgis-user]

I find that windows will open the version I installed but continue to say
the previous version when I open it by searching windows. In  my case it
says 3.18 but opens 3.26. Could this be happening to you?

On Mon, Oct 24, 2022 at 4:40 PM krishna Ayyala via Qgis-user <
qgis-user@lists.osgeo.org> wrote:

> Hello,
> I have QGIS 3.20 version. I was planning on updating to the latest
> version without uninstalling the current version. I have downloaded and
> installed  "OSGeo4W Installer" from the following webpage. The QGIS did not
> update to 3.26 version. My QGIS is still 3.20 version. Can anyone please
> help me fix this?
>
> Regards.
>
> https://www.qgis.org/en/site/forusers/alldownloads.html#osgeo4w-installer
>
> ___
> Qgis-user mailing list
> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

[Qgis-user] DXF layer locking

[Sebastian Gutwein via Qgis-user]

Hello,
I was excited to discover recently that you can drag and drop DXF layers
into QGIS.
The layer keeps its reference to the dxf and when the dxf is changed the
layer is updated.
The only problem I have had is that if I have the layer open in QGIS
AutoCAD won't let me save the dxf because it thinks it is open in another
program.
Does  anyone know if there is a workaround?
A way to load the dxf without telling Windows that it is in use?
As a network layer or something?

I did find that if I use QCAD I do not have a problem saving the DXF.
Unfortunately QCAD does not have all the functionality that we need.

Thanks
-Bas

-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] DXF layer locking

[Sebastian Gutwein via Qgis-user]

I found this
<https://thepythoncorner.com/posts/2016-10-27-how-to-open-file-without-locking-it/>
that goes over how to load files in windows without locking them. Not sure
if it is relevant.

On Mon, Nov 21, 2022 at 2:43 PM Sebastian Gutwein  wrote:

> Hello,
> I was excited to discover recently that you can drag and drop DXF layers
> into QGIS.
> The layer keeps its reference to the dxf and when the dxf is changed the
> layer is updated.
> The only problem I have had is that if I have the layer open in QGIS
> AutoCAD won't let me save the dxf because it thinks it is open in another
> program.
> Does  anyone know if there is a workaround?
> A way to load the dxf without telling Windows that it is in use?
> As a network layer or something?
>
> I did find that if I use QCAD I do not have a problem saving the DXF.
> Unfortunately QCAD does not have all the functionality that we need.
>
> Thanks
> -Bas
>
> --
> ___
> Sebastian "Bas* " Gutwein
> *rhymes with Josh
>
> Regenerative Design Group
> 1 Chevalier Ave
> Greenfield, Ma 01301
> Web: regenerativedesigngroup.com
> (631) 241-1018
>
> *Look close, think big, make change. *
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
Qgis-user mailing list
Qgis-user@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] [EXTERNAL] Re: Geopackage slow on NAS if not read-only

[Sebastian Gutwein via QGIS-User]

gt;>>
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user 
>>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Fqgis-user&data=05%7C01%7Cjaroslaw.sadowski%40cpk.pl%7C11269f199d644f13364608db25ff69c5%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C638145551176051605%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=4NfOOZrB2k%2B7Q3V0QHNXIvEOTYHFWp4D10C1MzYTTQQ%3D&reserved=0>
>>>
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user 
>>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Fqgis-user&data=05%7C01%7Cjaroslaw.sadowski%40cpk.pl%7C11269f199d644f13364608db25ff69c5%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C638145551176051605%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=4NfOOZrB2k%2B7Q3V0QHNXIvEOTYHFWp4D10C1MzYTTQQ%3D&reserved=0>
>>>
>>>
>>>
>>> ___
>>> QGIS-User mailing list
>>> QGIS-User@lists.osgeo.org
>>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Fqgis-user&data=05%7C01%7Cjaroslaw.sadowski%40cpk.pl%7C11269f199d644f13364608db25ff69c5%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C638145551176051605%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=4NfOOZrB2k%2B7Q3V0QHNXIvEOTYHFWp4D10C1MzYTTQQ%3D&reserved=0>
>>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>> <https://eur06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.osgeo.org%2Fmailman%2Flistinfo%2Fqgis-user&data=05%7C01%7Cjaroslaw.sadowski%40cpk.pl%7C11269f199d644f13364608db25ff69c5%7Cfa798250ca0b4a1bb47381cff4a1752b%7C1%7C0%7C638145551176051605%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=4NfOOZrB2k%2B7Q3V0QHNXIvEOTYHFWp4D10C1MzYTTQQ%3D&reserved=0>
>>>
>>>
>> ___
>> QGIS-User mailing listqgis-u...@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
>> --
>> Jorge Gustavo Rocha
>> Geomaster, LDA
>> "Take the open source journey with us"
>>
>> VAT/NIF: PT 510 906 109
>> Phone: +351 253 257 173 (landline)
>> Mobile: +351 910 333 888 (cellular)
>> Rua Afonso Palmeira, 31, 7 
>> <https://www.google.com/maps/search/Rua+Afonso+Palmeira,+31,+7?entry=gmail&source=g>
>>  D
>> 4715-278 Braga
>> PORTUGAL
>> GPS 41.54627, -8.40432
>>
>>
>> ___
>> QGIS-User mailing list
>> QGIS-User@lists.osgeo.org
>> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
>> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>>
> ___
> QGIS-User mailing list
> QGIS-User@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein
Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com
(631) 241-1018
___
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Open GPKG layers in read-only mode

[Sebastian Gutwein via QGIS-User]

I use gpkgs in google drive. Since this change
https://github.com/qgis/QGIS/pull/47098 which should have happened in qgis
3.24 by default they open without creating sidecar files. However if it
edited or is opened by a second person it will create the sidecar files.

On Sat, Apr 1, 2023 at 3:28 PM Prud'homme Jérémie via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Hi,
>
> I'm trying to open GPKG layers in read-only mode so that sidecar files are
> not created (wal, shm) as the file is shared on a onedrive folder.
>
> I saw this issue <https://github.com/qgis/QGIS/issues/35383> and from
> what I understand an option to open a vector layer has been added to QGIS
> but I don't know starting which version.
>
> Anyone can help me find this information ?
>
> Best regards,
> Jérémie.
> ___
> QGIS-User mailing list
> QGIS-User@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>
-- 
Sent from a phone. Amazing! But possibly garbled. Sebastian Gutwein
Regenerative Design Group 1 Chevalier Ave Greenfield MA b...@rdgland.com
(631) 241-1018
___
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Open GPKG layers in read-only mode

[Sebastian Gutwein via QGIS-User]

Jérémie,
I went and looked at my notes from when I was testing this after QGIS
3.24.1 came out and I had misremembered. Two people can open it at the same
time without the sidecar files being created. We have not had any
problems using gpkgs to read data on google drive for desktop.
Editing is not recommended but we have also been doing that. We are able
edit the geopackages if we are sure only one person will be editing it at a
time. This is almost always the case for us because usually only one person
is working on a project at a time and projects don't share editable data.
Saving edits is a lot slower on the google drive folder for small files
this is not noticeable but for large files this can be painful. I have
noticed that the sidecar files balloon to the size of the original files
when saving when google drive is on which is probably causing the slowness.
If google drive syncing is paused this is not a problem.  The other thing I
noticed at the time of my original tests is that if there is more than one
layer in the geopackage after editing one of the layers and editing is
turned off the file does not remove the sidecar files. If there is only one
layer this is not a problem.
Hope that helps.

On Sun, Apr 2, 2023 at 4:10 AM Prud'homme Jérémie 
wrote:

> Thanks for your answer.
>
> However if it edited or is opened by a second person it will create the
>> sidecar files.
>>
>
> Even if the second person open it read-only too?
> If yes, for which purpose?
>
> Jérémie.
>
>>

-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Technical specifications

[Sebastian Gutwein via QGIS-User]

Hello,
As it was not clear exactly what the needs of the department were I wanted
to offer an alternative perspective.
I have a small planning and design firm and we utilize QGIS healily on all
of our computers. I also teach GIS at a local masters program in planning.
While I agree with the specs put forward by the other respondents if you
are engaging in large geoprocessing tasks or if you want to make sure that
the computer you purchase is somewhat future proof. However, my students
and I do an amazing amount of processing and map creation on much less. I
have 16 GB of ram on my 6 year old windows machine and with the right
optimizations and able to run state wide geoprocessing tasks (I imagine you
could even have less RAM on linux). Some of my students this year somehow
ended up with 8 GB of ram on windows and if they are careful about the
number of programs they have open can easily run town scale GIS processing.

On Fri, Jun 2, 2023 at 1:35 PM KEITA Mamady kobélé via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Thanks to all for these useful tips and suggestions.
> The beneficiary service has a limited GIS Capability and we are preparing
> a training program as well.
> The internet is not that strong, so giving priority to desktop softwares.
> A cloud will be USED mainly for storage purpose, not really for WMS.
>
> Many thanks,
> Mamady
>
> On Fri, Jun 2, 2023, 11:39 AM Richard McDonnell 
> wrote:
>
>> Hi All,
>> I would like to just throw my two cents in on this.
>> If Raster processing is envisaged, push it out to 32 minimum 64
>> recommended and 128 if you can stretch.
>> As for Processors, you need as many Threads as you can afford, with a
>> good base clock.
>> I would agree with the use of SSD I would also recommend the use of a
>> good PCI/NVME drive for boot, operating system and software, but also a
>> second Solid State drive for storage of data you are working on. It's best
>> not to be processing over a network, if at all possible.
>> Two decent screens are a must and I agree that a good Mouse and Keyboard
>> are almost always overlooked.
>> In relation to Operating System, Its personal preference. Both Linux and
>> Windows are stable, with varying degrees of involvement.
>> If you go down the windows operating system route, I would advise using
>> the OSGeo4W installer to install everything. It keeps everything working
>> well in one environment, installing all dependencies. It even making
>> running GDAL or Python commands from Command line easier as it has its own
>> OsGeo4w Shell. Updating and installing additional tools and library's is
>> also a breeze. BIG SHOUT OUT TO THE DEVS!!!
>> I hope that helps!!
>> Kind Regards,
>>
>> Richard.
>>
>>
>>
>>
>>
>> ——
>> Richard McDonnell MSc GIS, FME Certified Professional
>> FRM Data Management
>>
>> ——
>> Oifig na nOibreacha Poiblí
>> Office of Public Works
>>
>> Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
>> Jonathan Swift Street, Trim, Co Meath, C15 NX36
>> ——
>> M +353 87 688 5964   T +353 46 942 2409
>> https://gov.ie/opw
>>
>> ——
>> To send me files larger than 30MB, please use the link below
>> https://filetransfer.opw.ie/filedrop/richard.mcdonn...@opw.ie
>>
>> Email Disclaimer:
>> https://www.gov.ie/en/organisation-information/439daf-email-disclaimer/
>>
>>
>>
>> ——
>> Richard McDonnell MSc GIS, FME Certified Professional
>> FRM Data Management
>>
>> ——
>> Oifig na nOibreacha Poiblí
>> Office of Public Works
>>
>> Sráid Jonathan Swift, Baile Átha Troim, Co na Mí, C15 NX36
>> Jonathan Swift Street, Trim, Co Meath, C15 NX36
>> ——
>> M +353 87 688 5964   T +353 46 942 2409
>> https://www.opw.ie
>>
>> ——
>> To send me files larger than 30MB, please use the link below
>> https://filetransfer.opw.ie/filedrop/richard.mcdonn...@opw.ie
>>
>> Email Disclaimer: https://www.opw.ie/en/disclaimer/
>> > -Original Message-
>> > From: QGIS-User  On Behalf Of Greg
>> > Troxel via QGIS-User
>> > Sent: 02 June 2023 11:51
>> > To: Sébastien LAGARDE via QGIS-User 
>> > Cc: KEITA Mamady kobélé 
>> > Subject: Re: [Qgis-user] Technical specifications
>> >
>> > Sébastien LAGARDE via QGIS-User  writes:
>> >
>> > Keep in mind that I have not used QGIS in a super serious way, and
>> haven't
>> > even tried to figure out how much resources it needs, other that on my
>> > desktop (a hand-me-down machine that was high end in 2014, with 24 GB
>> > RAM), it runs fine.
>> >
>> > There's a huge question not asked or answered, which is about operating
>> > system.  I personally would not even consider using Windows, but that's
>> me
>> > :-)
>> >
>> > > GIS operator Workstation (standard use)
>> > >
>> > >   *   Intel i5 or higher (12th gen) or AMD equivalent
>> > >   *   16 Gb RAM
>> > >   *   512 Gb HD but only SSD or even better PCI / NVME drives
>> > >   *   Small dedicated graphic card (any entry level card with 2-4 Gb
>> of
>> > dedicated memory)
>> > >   *   1 Gb network
>> >
>> > This seems reasonable, but:
>> >
>> >   Knowing how much d

Re: [Qgis-user] Z and Elevation

[Sebastian Gutwein via QGIS-User]

Manolo,
You may already know this and be asking a deeper question that I am not
understanding but in case you are not:
The Z is the value derived from the geometry itself that QGIS uses to draw
the location of the point.
The Elevation is an attribute associated with the point (a field in the
attribute table).
There are many reasons that these might not be the same.
It could be that they were derived from two different sources or there was
a transformation that occurred that changed the Z value.
Hope this helps.
-Bas

On Wed, Jun 28, 2023 at 1:34 PM Manolo Terranova via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Dear all,
> i have a question: if I select a point I get two information about the
> elevation. The Z which should be ellipsoidal, the ELEVATION which resembles
> the geodetic. Why two different informations?
> PDF attached.
> Thank you,
> Manolo
>
>
> ___
> QGIS-User mailing list
> QGIS-User@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Locking Font Characteristics for Text Items in Print Layout

[Sebastian Gutwein via QGIS-User]

Tim,
I have never had the font style change on me after reopening a QGIS file.
In other words they should be locked by default.
To me this sounds like a bug or there is an issue with the way fonts are
working on your system or your QGIS file is getting corrupted in some way.
If you can share your file or create a simple file showing the issue I
would suggest creating a bug report on the QGIS github site.
https://github.com/qgis/QGIS/issues
The volunteer bug fixers will only be able to fix your issue if they can
reproduce it so if you can create a file with steps that
consistently creates the problem you will have the best chances of getting
it resolved.

Here are some things I would consider trying.
If you are using a different version of QGIS now you could try to download
and use the same version of QGIS that you used previously in case something
changed on the QGIS code that prevented your file from working correctly.
Is it possible that the font you were using previously is no longer
available on your system and QGIS is replacing it with another font?

Good luck
-Bas

On Fri, Dec 8, 2023 at 10:39 AM Tim Malloy via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Hello again.  Noone responded to my initial inquiry below so I’m
> resending the email since this issue has come up for me again.  I have 14
> maps that I made about a year ago to which I need to make some very minor
> revisions.  When I opened the layouts in my project, I once again
> discovered that all the formatting for the text items created in Print
> Layout has been lost and must be reformatted.  I figure it will take me
> about 10 minutes per map to redo all the text formatting, which translates
> to over 2 hours of work.  The edits that my client has requested would
> take about 15 minutes for all 14 maps.  So, I’m losing 2 hours of
> billable time since I can’t charge for redoing all the text item formatting.
>
>
>
> Anyone have any input?
>
>
>
> Gratefully,
>
>
>
> Tim
>
>
>
> *Original Email Below:*
>
>
>
> Hello all – does anyone know if there is a way to lock a text map item in
> QGIS Print Layout to prevent the font size and type (bold, italic, etc.)
> from changing over time.  I’ve had several situations where I created a
> series of maps and exported them to PDF for a client and later needed to
> amend the maps and found that the text items created in Print Layout (map
> title, date, figure number, disclaimer statement, legend text, etc.) had
> reverted to a default font size and type.  Having to reset all the fonts
> for the text items can be very time consuming when you need to do it for 20
> or 30 maps.  I’ve tried locking the text item in the Items panel in Print
> Layout but that seems only to prevent the text item from being moved but
> does not retain the font characteristics.
>
>
>
> Any thoughts would be appreciated.
>
>
>
> Tim
>
>
> ___
> QGIS-User mailing list
> QGIS-User@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

Re: [Qgis-user] Missing Raster Calculator in QGIS 3.34

[Sebastian Gutwein via QGIS-User]

Sadly it looks like there was a port of the Raster Calculator to C++ and
that functionality wasn't ported. https://github.com/qgis/QGIS/pull/54035


On Mon, Dec 18, 2023 at 8:08 AM Lene Fischer via QGIS-User <
qgis-user@lists.osgeo.org> wrote:

> Hi All,
>
> I´m using QGIS 3.34
>
> In processing>Raster Calculator I can´t find the same Raster Calculator as
> in 3.32.
>
> The dialog are totally changed – Can anyone tell me where to find it. In
> the raster calculator in 3.32 I can save function – but this has vanished.
>
> Please help me find this dialog.
>
>
>
> Regards
>
> Lene Fischer
>
>
> ___
> QGIS-User mailing list
> QGIS-User@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
>


-- 
___
Sebastian "Bas* " Gutwein
*rhymes with Josh

Regenerative Design Group
1 Chevalier Ave
Greenfield, Ma 01301
Web: regenerativedesigngroup.com
(631) 241-1018

*Look close, think big, make change. *
___
QGIS-User mailing list
QGIS-User@lists.osgeo.org
List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user