Earth geo referenced TIF file

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LeMoaiVoyageur

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May 31, 2021, 2:35:16 AM5/31/21
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Good afternoon all,

Does anyone know where I could find a high resolution (as detailed as possible at country lor regional evel) of an earth geo referenced TIF file. The Natural Earth one gets blurry at country or regional level, thus I would like to find a high res file.

Thanks,
Stéphane

Brad Hards

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May 31, 2021, 2:51:44 AM5/31/21
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On Monday, 31 May 2021 4:35:16 PM AEST LeMoaiVoyageur wrote:
> Does anyone know where I could find a high resolution (as detailed as
> possible at country lor regional evel) of an earth geo referenced TIF file.
You can create one yourself if you like. Whether you can download something
depends on what you need to show in the GeoTIFF. Do you want country and
administrative borders, or something that looks a photo?

> The Natural Earth one gets blurry at country or regional level, thus I
> would like to find a high res file.
I normally resort to BlueMarble (250m/px) or BlackMarble (500m/px) mosaic/
tiles for imagery. Beyond that sort of scale, whole world isn't usually that
applicable and you're probably going to need something that is region specific.

Brad



Jonah Sullivan

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May 31, 2021, 2:58:01 AM5/31/21
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If you're looking for a global elevation model then gebco is great. It incorporates srtm terrestrial elevations and satellite altimetry and sonar depths.



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Juan Fernando Berrío

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May 31, 2021, 3:08:25 AM5/31/21
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Hello Stéphane, 

When you say "TIF file" do you refer to a DEM, or a background satellite image?  Or hillshading?  They all come in *.TIF (geotiff) format. 

Anyway, it's not common to see very detailed rasters of the whole earth.  The file size would be massive, and most computers struggle handling them (hard drive, RAM, processor, etc).  

An easy option is to add an online basemap as background for your maps.  If you go to the plugins menu of QGIS, and search "Google" or "Bing", you'll find options. 

If you really want detailed DEMs or sat images, and you want to store them in your hard drive (so they are available offline), it's more than likely that they will be region specific as Brad mentions. 

Hope it helps. 
Juan



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Stéphane Parrenin

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May 31, 2021, 3:50:34 AM5/31/21
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Thank you Juan, Jonah, Brad, for the quick feedback. Apologies as I am a beginner, thus I might not understand all the technical jargon. 
It might be easier to use the attached map of Baja California that I just created as an example. 
The background is ok, however if I was to create a map of the Cabo San Lucas area, then the background is really blurry. 

Thus to answer your question, I would be looking at a country or regional level file, whether it is a photo or a file showing admin and country border.
Do create the file myself using the plug in tool ?

Thanks,
Stéphane

On 31 May 2021, at 5:08 pm, Juan Fernando Berrío <juanb...@gmail.com> wrote:

bi...@williamson.fm

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May 31, 2021, 5:00:18 AM5/31/21
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Stéphane Parrenin

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May 31, 2021, 6:22:51 AM5/31/21
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Thank you Bill, I have been playing around with the plug in but there are many maps that I cannot see, such as for instance the “MapSurfer” or "eAtlas Moss”. Seems that I can only see the “OSM Standard” (the other OSM maps require a license).



Rgds,
Stéphane



On 31 May 2021, at 7:00 pm, bi...@williamson.fm <bi...@williamson.fm> wrote:

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<202.png>

Bill Williamson

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May 31, 2021, 6:30:53 AM5/31/21
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Hello again Stephane

the moving image in the page on this link explains it most clearly


Stéphane Parrenin

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Jun 2, 2021, 4:02:40 AM6/2/21
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Thank you Bill, 
I still cannot see the file, the thumbnail is blank. I might not quite be on the right track….



On 31 May 2021, at 8:30 pm, Bill Williamson <bi...@williamson.fm> wrote:

Hello again Stephane

the moving image in the page on this link explains it most clearly


On Mon, 31 May 2021 at 20:22, Stéphane Parrenin <st3phane...@gmail.com> wrote:
Thank you Bill, I have been playing around with the plug in but there are many maps that I cannot see, such as for instance the “MapSurfer” or "eAtlas Moss”. Seems that I can only see the “OSM Standard” (the other OSM maps require a license).

<Screen Shot 2021-05-31 at 8.21.21 pm.png>

Stéphane Parrenin

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Jun 23, 2021, 5:00:00 AM6/23/21
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Hello again,

I have found this blue marble earth TIF file on visible earth website (see link below) , however I cannot see it in QGIS ?




Is it a setting / projection issue ?

Thanks,
Stephane



On 31 May 2021, at 8:30 pm, Bill Williamson <bi...@williamson.fm> wrote:

Hello again Stephane

the moving image in the page on this link explains it most clearly


On Mon, 31 May 2021 at 20:22, Stéphane Parrenin <st3phane...@gmail.com> wrote:
Thank you Bill, I have been playing around with the plug in but there are many maps that I cannot see, such as for instance the “MapSurfer” or "eAtlas Moss”. Seems that I can only see the “OSM Standard” (the other OSM maps require a license).

<Screen Shot 2021-05-31 at 8.21.21 pm.png>

David Va

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Jun 24, 2021, 2:06:48 AM6/24/21
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Hi Stephane,

I downloaded the 2MB tif from the link in your email, it loads in QGIS but is not a geo referenced TIF file, so yes won't show in the correct place relative to other correctly referenced data.


Hope you can find a good one.
Cheers
David

Stéphane Parrenin

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Jun 24, 2021, 3:38:24 AM6/24/21
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Hello David, 

Thank you, I should have checked that first! Will keep on roaming the web to find a geo referenced file!

Rgds,
Stéphane

Stéphane Parrenin

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Jul 9, 2021, 4:50:19 AM7/9/21
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Thanks David.



On 24 Jun 2021, at 4:06 pm, David Va <vad...@gmail.com> wrote:

Stéphane Parrenin

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Jul 9, 2021, 4:57:41 AM7/9/21
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Good evening all,

Could anyone advise in a nutshell how ArcGIS Pro compare with QGIS ? Is that a better tool (more comprehensive/) that QGIS ? Is that worth the $100/year subscription, as advertised on the ESRI website?
I am just creating maps for fun. I am not into creating maps to visualise complicated data, but rather to create geographic or roads map, as shown on my website (https://www.stephaneparrenin.com/thematic).

Thanks,
Stéphane

Sheece

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Jul 9, 2021, 5:38:40 AM7/9/21
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I am coming from a programming background working with a few projects/systems built around ArcGIS for like 3 years. I think it's a complete waste of time. It is a cool gimik but not for serious work. We had like 50 Gb of geo spatial datasets and needed to do simple spatial operations like union, addition, subtraction etc. They have this so-called toolbox and python api which is so trash it performs operations in series. The whole point of python as a scripting language is you have the ability to control how you want to distribute these tasks over multiple cpus. But their python api acts like a java virtual machine fix ram, fixing no of cpu it can use and you can't look into the code its all *.dll files to see what the muck their devs have cooked up.  

Don't even get me started on their support for machine learning, it's so so bad like 10 years old modeling algorithms are presented as state of art. They make it impossible to extract labeled data so that you can not use it in your own custom models, I have never seen any of their presenters compete on any standard problem so you can compare how bad their modeling functions are. It's just  gimik .   

Geospatial people get used to it and think that waiting 15 mins for an operation to happen is normal, I just hate it. Reading the Q/A on their esri forms; It's so lame the discussions and the feedback the conversations are so super fiscal. Feels like they have outsourced their Q/A to give standard reposes and no developer is ever on it. Only thing they are actually good at is "marketing" and bidding at government contracts.  It's just cancer.  

If you are going to spend your time, I would suggest investing it in QGIS. For your example deck.gl will do a good job too, https://deck.gl/docs/api-reference/layers/line-layer this might also look cool.

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Regards,
Sheece
 

Andy Tice

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Jul 9, 2021, 6:21:04 AM7/9/21
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Hi Stéphane,
I don't think you'll get an objective response from this group :p.
QGIS can certainly do almost anything Arc can, and if you were thinking about doing hardcore geoprocessing I'd actually recommend R or Python...but since your focus is design I'd stick with QGIS.
I tend to use it to get the data I need in place and then export to GIMP or Inkscape to do the final formatting.
There's also some nice examples of using Blender / Aerialod for 3d processing here 
http://www.statsmapsnpix.com/2021/06/arterial-cities.html?m=1

There's also some neat QGIS map design books out there which really lift the hood on its capabilities....https://anitagraser.com/

Ta
Andy
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D Herr

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Jul 9, 2021, 6:48:45 AM7/9/21
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Hi Stéphane,

I use QGIS for my work at a local council and it does most of the processing that I need, however I've found that it crashes at least once a day so be prepared to save often.

Bye
Doug

Virus-free. www.avg.com

Benjamin Crockett

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Jul 9, 2021, 6:48:45 AM7/9/21
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Great response. 

To what seemed to me to be a marketing based email. Only a $100 a year. Couldn't pay me $100 a year to use it.

They start small, lock you in and then exploit you. If anyone out there wants to get rid of Esri completely you should look into https://north-road.com/slyr/

Back to my holiday.

BC. 

Ia...@jcis.net.au

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Jul 9, 2021, 8:32:58 AM7/9/21
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I use both but not for particularly sophisticated work mainly overlaying of georeferenced maps and plotting of archaeological/historical sites. Generally, ArcGIS is embedded in the brains of my clients and colleagues. ArcGIS pro is the new kid on the block and ESRI is really pushing everyone to move.

 

Supposedly ArcGIS pro eliminates many of the frustrating elements of ArcGIS such as the way you edit files, the split between ArcCatalog and ArcMap. Hopefully they have removed the situation where you have to buy extra modules for what would seem to be simple tasks. 

 

QGIS has the advantage of being free. One downside with FOSS is lack of support but not so in QGIS there are heaps of support videos to help and forums with all manner of tasks. In contrast paid support I have found often takes a while to get going and understand you question. IMHO QGIS has better support.

 

Conversely, I think QGIS is hopeless for georeferencing so much so that I georeference plans in ArcGIS and then used them in QGIS. Some aspects of basic digitising in QGIS are also clunky. My view is too much time is spent crapping on with plugins in python and not enough on basic data creation.

 

Once you learn the program QGIS is heaps better for cartography and the production of great maps – check out the QGIS maps page on Flickr to see really good examples.

 

Cheers

 

Dr Iain Stuart

JCIS Consultants

P.O. Box 2397

Burwood North

NSW, 2134

 

(02) 9701 0191
(0413) 380116 (m)

 

.

Stéphane Parrenin

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Jul 9, 2021, 7:53:17 PM7/9/21
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Dear all,

Wow, thank you for your overwhelming and passionate feedback, compelling evidence that I should stick to QGIS, which is what I know and what I enjoying using. I will use your recommendation to improve my skills and navigate through the world of GIS. 
I will check Inkscape and GIMP, I actually use a small Apple software called Artboard (Mapdiva) (which unfortunately has been decommissioned) to finish and fine tune my maps.
Thanks also for the publication recommendation, I have a couple of books from Locatepress, from Kurk Menke and Anita Graser, and recently purchased Scott Madry “Introduction to QGIS”. However I am still searching for material for absolute beginners, addressing the very basic which is challenging to find.

Have a great week-end all, and again, thank you.

Stéphane



On 9 Jul 2021, at 10:32 pm, <Ia...@jcis.net.au> <Ia...@jcis.net.au> wrote:

I use both but not for particularly sophisticated work mainly overlaying of georeferenced maps and plotting of archaeological/historical sites. Generally, ArcGIS is embedded in the brains of my clients and colleagues. ArcGIS pro is the new kid on the block and ESRI is really pushing everyone to move. 
 
Supposedly ArcGIS pro eliminates many of the frustrating elements of ArcGIS such as the way you edit files, the split between ArcCatalog and ArcMap. Hopefully they have removed the situation where you have to buy extra modules for what would seem to be simple tasks.  
 
QGIS has the advantage of being free. One downside with FOSS is lack of support but not so in QGIS there are heaps of support videos to help and forums with all manner of tasks. In contrast paidsupport I have found often takes a while to get going and understand you question. IMHO QGIS has better support.
 
Conversely, I think QGIS is hopeless for georeferencing so much so that I georeference plans in ArcGIS and then used them in QGIS. Some aspects of basic digitising in QGIS are also clunky. My view is too much time is spent crapping on with plugins in python and not enough on basic data creation. 
 
Once you learn the program QGIS is heaps better for cartography and the production of great maps – check out the QGIS maps page on Flickr to see really good examples. 
 
Cheers
 
Dr Iain Stuart
JCIS Consultants 
P.O. Box 2397
Burwood North
NSW, 2134
 
(02) 9701 0191
(0413) 380116 (m)
 
.
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Stéphane Parrenin

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Aug 17, 2021, 5:25:49 AM8/17/21
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Good evening all,

I have just found out how to reshape a shape file in QGIS, however I can’t save it, thus the change I made are not saved. See the error message I get.
Could anyone let me know how to save the change ?

Thanks,
Stéphane

John Bryant

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Aug 17, 2021, 9:53:26 AM8/17/21
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Hi Stéphane, I think the problem is that you can't save changes straight to the KMZ format from QGIS. Save to a geopackage, shapefile, KML, geojson, or one of the other formats QGIS can write to.

If you want to keep your data as KMZ, you can do this: save it as KML, zip the KML in your file browser, and change the file extension from .zip to .kmz. Be aware that sometimes KMZ files will have ancillary information, like photos, that could be lost in this process.

Cheers
John


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Stéphane Parrenin

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Sep 9, 2021, 8:01:17 PM9/9/21
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Good morning all,

Grateful if you could advise where is the best and easiest-to-use data source to find DEM files (per country) ? I have gone thru the below link but that is a bit overwhelming. Any recommendation?


Thanks,
Stéphane

Jonah Sullivan

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Sep 9, 2021, 8:12:08 PM9/9/21
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I like the gebco gridded data.


It's 15 arc second srtm on land and a mix of sonar and satellite altimetry in the ocean.

If you need better resolution then you'll probably have to find lidar derived data.

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Stéphane Parrenin

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Sep 9, 2021, 8:17:55 PM9/9/21
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Thank you Jonah, much appreciate.
Say I want a DEM file of Zimbabwe, I can safely download the application and create that file using the tool ?

Thanks, Stéphane.

Brad Hards

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Sep 9, 2021, 8:31:17 PM9/9/21
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On Friday, 10 September 2021 10:01:12 AM AEST Stéphane Parrenin wrote:
> Good morning all,
>
> Grateful if you could advise where is the best and easiest-to-use data
> source to find DEM files (per country) ? I have gone thru the below link
> but that is a bit overwhelming. Any recommendation?
I like SRTM (BIL, DTED or GeoTIFF formats) at 3 arc seconds or 1 arc seconds
as appropriate. You can fairly easily download that from the USGS Earth
Explorer site.

Brad




Jonah Sullivan

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Sep 9, 2021, 8:32:19 PM9/9/21
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You can download the global dataset or a subset of your area of interest.

The data is geotiff or netcdf. You don't need to download an application to access the data.

John Bryant

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Sep 9, 2021, 8:33:15 PM9/9/21
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Hi Stephane, you could also use the SRTM Downloader plugin in QGIS to download DEM tiles for your area of interest. If you want to combine them you could build a virtual raster (VRT). You could clip the VRT with your country polygon if you want a trimmed version.

Cheers
John

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Stéphane Parrenin

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Sep 9, 2021, 8:48:41 PM9/9/21
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thank you John, I will give this a go!

Stéphane Parrenin

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Sep 9, 2021, 8:49:13 PM9/9/21
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Thanks Brad, will look that up.

Stéphane Parrenin

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Sep 9, 2021, 8:49:41 PM9/9/21
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Stéphane Parrenin

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Sep 10, 2021, 9:17:41 PM9/10/21
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Hello John,

I have managed to download and use the SRTM downloader! pretty cool.
However I realise that DEM files are usually used for small area. I am downloading DEM file for Namibia, there is 336 images! I hope I can merge them all!

Rgds,
Stéphane

John Bryant

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Sep 10, 2021, 10:45:41 PM9/10/21
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Ahh yeah that's quite a few! See how you go.

Might be worth exporting to GeoTIFF and adding compression, tiles and overviews to them (with gdal_translate and gdal_addo), this will make it a lot easier to work with in QGIS.

Stéphane Parrenin

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Sep 11, 2021, 12:05:41 AM9/11/21
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Indeed, the merged file is 14 GB ouch!!!! 

Stéphane Parrenin

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Oct 13, 2021, 6:16:31 PM10/13/21
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Good morning all,

Is there a way to lock a map in the QGIS work plan, so it keeps the same position whenever I open QGIS, whether I minimise or maximise the screen (or accidentally run the cursor on the map)?
Similarly, is there a way to lock the labels into position, so that they do not move each time I open QGIS, open and close projects, or mini/maximise my screen ?

Been struggling and wasting a lot of precious time with the above.

Have a good day all,

Stéphane

Luke Kirkwood

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Oct 14, 2021, 4:14:01 PM10/14/21
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Hi Stéphane,

There are three tools I can think of which might be of assistance.

1) The Spatial Bookmark Manager - you can create a series of bookmarks and even group them by project if you are frequently working in the one area.


2) Set a default scale in the QGIS preferences - if you find yourself working at one particular scale that you want to remember/use in the future - add it to the default scale preferences here and it will be accessible from the scale tool at the bottom of the QGIS screen.

3) Lock or unlock the scale. This one is a bit of a doozy at it flips control over to the magnifier tool locking the scale of the elements shown on screen, and. Sometimes useful, sometimes not. Personal preference.


Now if we are talking about the print composer (not quite sure what the work plan is) you can simple go into a data defined override for any value and put a fixed value. In the example below I have told QGIS that the scale of the map element will always be 10000. Note that if you play around with this stuff, it’s best to set the data overrides for the extents as well to truly lock the map in place.


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Stéphane Parrenin

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Oct 19, 2021, 9:03:25 AM10/19/21
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Thank you very much Luke, will look into this.

Stéphane

On 15 Oct 2021, at 7:13 am, Luke Kirkwood <luke.k...@gmail.com> wrote:

Hi Stéphane,

There are three tools I can think of which might be of assistance.

1) The Spatial Bookmark Manager - you can create a series of bookmarks and even group them by project if you are frequently working in the one area.

<PastedGraphic-1.png>

2) Set a default scale in the QGIS preferences - if you find yourself working at one particular scale that you want to remember/use in the future - add it to the default scale preferences here and it will be accessible from the scale tool at the bottom of the QGIS screen.

<PastedGraphic-2.png>
3) Lock or unlock the scale. This one is a bit of a doozy at it flips control over to the magnifier tool locking the scale of the elements shown on screen, and. Sometimes useful, sometimes not. Personal preference.

<PastedGraphic-3.png>

Now if we are talking about the print composer (not quite sure what the work plan is) you can simple go into a data defined override for any value and put a fixed value. In the example below I have told QGIS that the scale of the map element will always be 10000. Note that if you play around with this stuff, it’s best to set the data overrides for the extents as well to truly lock the map in place.

<PastedGraphic-4.png>

On 14 Oct 2021, at 8:16 am, Stéphane Parrenin <st3phane...@gmail.com> wrote:

Good morning all,

Is there a way to lock a map in the QGIS work plan, so it keeps the same position whenever I open QGIS, whether I minimise or maximise the screen (or accidentally run the cursor on the map)? 
Similarly, is there a way to lock the labels into position, so that they do not move each time I open QGIS, open and close projects, or mini/maximise my screen ?

Been struggling and wasting a lot of precious time with the above.

Have a good day all,

Stéphane 

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Stéphane Parrenin

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Nov 3, 2021, 2:30:15 AM11/3/21
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Good afternoon all,

I have imported a KMZ file (Point of interest) from "my google map" to populate places in Saudi Arabia. I have been able to use the “Move a label” tool (ABC right arrow icon) to reshuffle labels without any issues.
I then imported a second KMZ file (PoI 2) from my google map to populate more places. However the “Move a label” tool is no longer working, seems frozen. I can see a cross when I hoover over the label, however I can edit the label and move it.

I don’t think I have done anything different between the first and the second KMZ file.


Appreciate any guidance.

Thanks,
Stéphane

Luke Kirkwood

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Nov 3, 2021, 5:24:00 AM11/3/21
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Hi  Stéphane,

I can't comment on the issue with the KMZ, but in general, when a KMZ doesn't behave, I convert it to a geopackage or shapefile. Generally fixes the problem straight away.

A geopackage also has the added advantage of acting as a map container for all your files should you need them again in another project. You can save vectors and rasters as well as formatting styles, and allows for better interrogation of data with some of QGIS's more advanced analysis tools.

Klas Karlsson has a great video on the file format if you are thinking of using it and are not familiar with it.


Cheers

Luke Kirkwood

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Stéphane Parrenin

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Nov 3, 2021, 6:07:42 AM11/3/21
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Hey Luke,

Thank you, I thought it might be a bug.
Are the online converters reliable and safe to use ? 
For example:

I have converted the KMZ file to GPKG using QGIS but the result is the same, i.e. I cannot move the label. Do I need to convert the KMZ file before importing it to QGIS ?

Thanks,
Stéphane


On 3 Nov 2021, at 8:23 pm, Luke Kirkwood <luke.k...@gmail.com> wrote:

Hi  Stéphane,

I can't comment on the issue with the KMZ, but in general, when a KMZ doesn't behave, I convert it to a geopackage or shapefile. Generally fixes the problem straight away.

A geopackage also has the added advantage of acting as a map container for all your files should you need them again in another project. You can save vectors and rasters as well as formatting styles, and allows for better interrogation of data with some of QGIS's more advanced analysis tools.

Klas Karlsson has a great video on the file format if you are thinking of using it and are not familiar with it.


Cheers

Luke Kirkwood

On Wed, 3 Nov 2021 at 16:30, Stéphane Parrenin <st3phane...@gmail.com> wrote:
Good afternoon all,

I have imported a KMZ file (Point of interest) from "my google map" to populate places in Saudi Arabia. I have been able to use the “Move a label” tool (ABC right arrow icon) to reshuffle labels without any issues.
I then imported a second KMZ file (PoI 2) from my google map to populate more places. However the “Move a label” tool is no longer working, seems frozen. I can see a cross when I hoover over the label, however I can edit the label and move it.

I don’t think I have done anything different between the first and the second KMZ file.


Appreciate any guidance.

Thanks,
Stéphane

<Screen Shot 2021-11-03 at 5.19.41 pm.png>

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Stéphane Parrenin

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Nov 3, 2021, 6:12:55 PM11/3/21
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Hey Luke,

Thank you, I thought it might be a bug.
Are the online converter reliable and safe to use ? 
For example:

What is the extension name of a geopackage ? 


On 3 Nov 2021, at 8:23 pm, Luke Kirkwood <luke.k...@gmail.com> wrote:

Hi  Stéphane,

I can't comment on the issue with the KMZ, but in general, when a KMZ doesn't behave, I convert it to a geopackage or shapefile. Generally fixes the problem straight away.

A geopackage also has the added advantage of acting as a map container for all your files should you need them again in another project. You can save vectors and rasters as well as formatting styles, and allows for better interrogation of data with some of QGIS's more advanced analysis tools.

Klas Karlsson has a great video on the file format if you are thinking of using it and are not familiar with it.


Cheers

Luke Kirkwood

On Wed, 3 Nov 2021 at 16:30, Stéphane Parrenin <st3phane...@gmail.com> wrote:
Good afternoon all,

I have imported a KMZ file (Point of interest) from "my google map" to populate places in Saudi Arabia. I have been able to use the “Move a label” tool (ABC right arrow icon) to reshuffle labels without any issues.
I then imported a second KMZ file (PoI 2) from my google map to populate more places. However the “Move a label” tool is no longer working, seems frozen. I can see a cross when I hoover over the label, however I can edit the label and move it.

I don’t think I have done anything different between the first and the second KMZ file.


Appreciate any guidance.

Thanks,
Stéphane

<Screen Shot 2021-11-03 at 5.19.41 pm.png>
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Luke Kirkwood

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Nov 3, 2021, 7:33:03 PM11/3/21
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Hi Stéphane,

Online converters should always be viewed as potentially risky. Use at your own discretion. I have a Mac, so I am generally blaisé about viruses/malware, even though I shouldn't be.

The extension of a geopackage is .gpkg

Suggest if you are still having problems to post your KMZ to the mailing list (if that is possible and also doesn't infringe on your intellectual property)

Cheers

Luke

Stéphane Parrenin

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Nov 4, 2021, 12:01:08 AM11/4/21
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Hi Luke,

I might have found the issue. Each time I load the label style I've saved, the issue occurs.
Could it be that this file (it’s a QML file) is corrupted?

Stéphane

Stéphane Parrenin

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Nov 4, 2021, 2:18:41 AM11/4/21
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Hi all,

I have selected a number of features that I would like to show on the map:

I used the “show selected features” button but the map still show ALL FEATURES. 
Do I need to use the Query Builder to do that ? If so, what would be the set up / script.

Thanks,
Stéphane


bi...@williamson.fm

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Nov 4, 2021, 3:04:39 AM11/4/21
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Hello Stephane, 

The terminoloy of "show" is about revealing the rows of data in the attribute table, not on the map. 

probably a FILTER on the layer is quickest for you. 
You will need a key or attribute on which to apply the filter. 


2021-11-04_18-02.png

2021-11-04_18-03.png

John Bryant

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Nov 4, 2021, 3:07:36 AM11/4/21
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Haha Bill you beat me to it :) Hitting send anyway...

Hi Stéphane, the "Show Selected Features" option on the attribute table is only for the table, it doesn't apply to the map canvas.

If you want to see a subset of features in the map canvas, you could use a filter by right-clicking the layer in the Layers panel, choosing Filter..., and then writing an expression that matches the features you want to see.

One way you can turn an arbitrary selection (eg if you manually select a few features) into a separate layer: copy the features (ctrl-c) and paste them into a scratch layer (crtl-alt-v).

Cheers
John

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bi...@williamson.fm

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Nov 4, 2021, 3:14:17 AM11/4/21
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Good John!

Phil Wyatt

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Nov 4, 2021, 3:20:26 AM11/4/21
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And finally,  If you project will only ever use those objects you can also right click on the layer whilst they are selected and ‘Save Selected features’ as a completely new layer

 

Cheers - Phil

Stéphane Parrenin

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Nov 4, 2021, 3:27:42 AM11/4/21
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Thank you all for your feedback. I think I got it.
However, what expression should I write so that only those selected items are shown on the map?


bi...@williamson.fm

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Nov 4, 2021, 5:10:53 AM11/4/21
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Evening Stephan, 

the manual is very good. Expressions are universal in QGIS, thanks to the initiative of Nathan W. 

Stéphane Parrenin

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Nov 4, 2021, 5:56:18 AM11/4/21
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Thanks Bill,

Bearing in mind that I have no experience in coding/programming, using the below screenshot, should I write something along the line of:
name = is_selected ?
I have been playing around with the expression, but not getting anywhere…..


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Phil Wyatt

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Nov 4, 2021, 6:08:28 AM11/4/21
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Hi Stephan,

 

If you don’t have a field that specifies which records you wish to use then you will need a filter expression like below with all your NAME objects

 

“NAME” IN (‘An Nabk’, ‘Al Hufuf’, add all the names you want to display……….)

 

Cheers - Phil

Ramon Andinach

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Nov 4, 2021, 6:14:11 AM11/4/21
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I think if there wasn’t a field I could easily filter on, then what I’d probably do with my selection is use the field calculator (the icon looks like an abacus) to add a virtual field (or a real one if you wanted :) that I filled in with a code, say 1.
Then (for completeness) I could invert the selection and fill the reminder with 0.

Then I can either filter on that, or use a classified symbology and unselect the 0 category.

Phil Wyatt

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Nov 4, 2021, 6:27:36 AM11/4/21
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Hi Stephan,

 

If you keep the attribute table open and then just select a few areas at a time then you could use rule based symbology to effectively only ‘show’ selected objects

 

 

Cheers - Phil

image001.png

Stéphane Parrenin

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Nov 5, 2021, 3:12:51 AM11/5/21
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Thanks Ramon, and Phil,

I have so far only been able to edit an existing field and changed the value to 1 for the features that were selected. Then I used Command F (iMac) and wrote the expression. It worked well.
With a bit more time this week end I will look at creating a new field which might be a cleaner option.

Thanks again,
Have a great weekend,

Stéphane

Stéphane Parrenin

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Nov 12, 2021, 2:01:10 AM11/12/21
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Good afternoon all,

I am attempting to install the OpenLayers plug in but I cannot find it under the “ALL” . Am I missing something ?




Separately I am also trying to install google maps using the tool as shown below, but that does not work either (using URL found on a tutorial to establish connection. The canvas remains white.Thanks,

Stéphane

Luke Kirkwood

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Nov 12, 2021, 2:18:37 AM11/12/21
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Try this Sttéphane. It’s a bit advanced, because you have to use the python console, but it’s the easiest way to get XYZ Tiles up and running.

https://gis.stackexchange.com/questions/20191/adding-basemaps-from-google-or-bing-in-qgis

  1. Plugins > Python Console > then click the "Show Editor” button (icon looks like a piece of paper with a pencil)
  2. Copy&Paste the code at this link into a new Python file and press Run script run script
https://raw.githubusercontent.com/klakar/QGIS_resources/master/collections/Geosupportsystem/python/qgis_basemaps.py
Should look like this

step_2

  1. After code executes a list of basemaps will appear under the XYZ Tiles in the Browser panel, see image below.

    step_3


On 12 Nov 2021, at 5:00 pm, Stéphane Parrenin <st3phane...@gmail.com> wrote:

Good afternoon all,

I am attempting to install the OpenLayers plug in but I cannot find it under the “ALL” . Am I missing something ?


<Screen Shot 2021-11-12 at 5.56.37 pm.png>


Separately I am also trying to install google maps using the tool as shown below, but that does not work either (using URL found on a tutorial to establish connection. The canvas remains white.<Screen Shot 2021-11-12 at 5.57.55 pm.png>Thanks,

Stéphane

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Stéphane Parrenin

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Nov 12, 2021, 2:40:36 AM11/12/21
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Thanks Luke,

I have copied the below:


Then pasted and clock on run but nothing seems to happen:



On 12 Nov 2021, at 6:18 pm, Luke Kirkwood <luke.k...@gmail.com> wrote:


Stéphane Parrenin

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Nov 12, 2021, 2:50:25 AM11/12/21
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Hi Luke,

Got it now. but google terrain is all black (see below) … and google road is all white.


Thanks,
Stéphane




On 12 Nov 2021, at 6:18 pm, Luke Kirkwood <luke.k...@gmail.com> wrote:

Try this Sttéphane. It’s a bit advanced, because you have to use the python console, but it’s the easiest way to get XYZ Tiles up and running.

  1. Plugins > Python Console > then click the "Show Editor” button (icon looks like a piece of paper with a pencil)
  1. Copy&Paste the code at this link into a new Python file and press Run script <vHkKx.png>
  1. After code executes a list of basemaps will appear under the XYZ Tiles in the Browser panel, see image below.



On 12 Nov 2021, at 5:00 pm, Stéphane Parrenin <st3phane...@gmail.com> wrote:

Good afternoon all,

I am attempting to install the OpenLayers plug in but I cannot find it under the “ALL” . Am I missing something ?


<Screen Shot 2021-11-12 at 5.56.37 pm.png>


Separately I am also trying to install google maps using the tool as shown below, but that does not work either (using URL found on a tutorial to establish connection. The canvas remains white.<Screen Shot 2021-11-12 at 5.57.55 pm.png>Thanks,

Stéphane

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John Bryant

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Nov 12, 2021, 4:27:17 PM11/12/21
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Hi Stéphane, I haven't seen the Openlayers plugin for a few years, I think the QuickMapServices plugin is the easiest way to get basemaps in QGIS these days.

Make sure you install the "Contributed Pack" (in the menu within the plugin: Settings>More services>Get contributed pack). This gives you a big selection of base maps.

image.png

image.png



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Danny's DIY and Garden

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Nov 13, 2021, 7:57:46 PM11/13/21
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Hi Stéphane.

The Open Layers plugin is still set as "experimental" so you have to turn on Show also experimental plugins in the Settings tab of the plugin window. 

That said, it's been a bit hit and miss for the Google imagery lately and always throws python errors for me. 

I will be trying some of the alternatives suggested. Having a quick look that QuickMapServices looks really good. 

Danny.

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Stéphane Parrenin

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Nov 24, 2021, 7:17:24 PM11/24/21
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Good morning all,

Before I install QGIS on a new MacBook Air, is there any I need to be aware of, or is it all good to go ?
The machine is equipped with the new M1 chip.

Thanks,
Stéphane

Stéphane Parrenin

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May 20, 2022, 7:53:10 PM5/20/22
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Good morning all,

When using the pick colour function in the Layer Property window, the paint brush only works inside the Layer Property window. It turns into an arrow as soon as the cursor leave that window.Has anyone encountered that issue, and is there a fix ? I am using a Mac

See screen shots attached.


Thanks and have a great weekend,
Stéphane

IMG_1690.JPG><IMG_1689.JPG><IMG_1688.JPG>

Stéphane Parrenin

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May 26, 2022, 11:31:48 PM5/26/22
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Good afternoon all,

Juan Fernando Berrío

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May 26, 2022, 11:39:09 PM5/26/22
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Hello Stéphan,

Have you tried clicking somewhere else to see if it actually works? 

Sometimes the cursor only looks like the "colorpicker" inside the window and looks like a standard mouse pointer out of the window, but it may still work if you do a click.

Juan

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Stéphane Parrenin

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May 26, 2022, 11:55:14 PM5/26/22
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Hello Juan,

Thank you for the feedback. I had tried that before but that does not work either.
I have a iMac (QGIS3.10) and a Macbook air (QGIS3.22)and I encounter the same issue with both machines….

Stéphane



On 27 May 2022, at 1:38 pm, Juan Fernando Berrío <juanb...@gmail.com> wrote:

Hello Stéphan,

Have you tried clicking somewhere else to see if it actually works? 

Sometimes the cursor only looks like the "colorpicker" inside the window and looks like a standard mouse pointer out of the window, but it may still work if you do a click.

Juan

On Fri, 27 May 2022 at 13:31, Stéphane Parrenin <st3phane...@gmail.com> wrote:
Good afternoon all,

When using the pick colour function in the Layer Property window, the paint brush only works inside the Layer Property window. It turns into an arrow as soon as the cursor leave that window.Has anyone encountered that issue, and is there a fix ? I am using a Mac

See screen shots attached.


Thanks and have a great weekend,
Stéphane

IMG_1690.JPG><IMG_1689.JPG><IMG_1688.JPG>
<IMG_1690.JPG><IMG_1689.JPG><IMG_1688.JPG>


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Stéphane Parrenin

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Jun 2, 2022, 4:54:27 AM6/2/22
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Good evening all,

I would like to use the below projection for a new project (WGS 84 / Equal Earth Americas), however it is very crooked!
Would anyone know how to fix this ? The world layer is actually the build-in “world layer from QGIS.

Thanks,
Stéphane

Jonah Sullivan

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Jun 2, 2022, 6:15:05 AM6/2/22
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Same problem with plate caree projection, the data needs to be cut along the antimeridian. The projection algorithm projects each vertex of the polygon which shifts some vertices to the wrong side of the frame and makes the geometry look broken.

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Stéphane Parrenin

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Jun 2, 2022, 9:47:07 PM6/2/22
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Hello Jonah,

Thank you for the feedback. Since I am a beginner, I sort of understand what you meant, but I would not know how to do that.

Thanks a lot nonetheless.

Rgds,
Stéphane

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