Looking for a cheaper GIS conference that still offers loads of great content and networking opportunties? State of the Map US is coming up and you cannot beat these prices.
We even have playlists of talks from previous years so you can see if it may be right for you. Take a look and I hope to see some of you in Boston!
https://www.youtube.com/watch?v=zkEJrLrnArE&list=PLqjPa29lMiE3msEjJS-QE5MTq1Ew0djYd
Current Status:
Downloading 807 LAS files via an index layer containing a hyperlink attribute using a python script.
Esri sent me a hat, but it didn't quite fit right.
Fixed it.
Still gotta go over the Q a couple times to build up some thin spots, but I'm pretty happy with it.
Now in PROJ documentation you have an image for every supported projection in one single page:
https://proj.org/en/latest/operations/projections/all_images.html
However, most of the CRSs are using just 4 of them.
@qgis + #DroneDB #microtootorial
You have some drone images over a transect and want to get the approximate area covered [1]
Use #DroneDB CLI (https://docs.dronedb.app/docs/cli) to generate image footprints:
ddb info ./jpg/*.JPG -f geojson --geometry polygon -o footprints.geojson
Drop the footprint geojson into QGIS [2]. Dissolve them (Vector -> Geoprocessing Tools -> Dissolve) [3].
Reproject the result to a CRS in metres (eg UTM) and label with $area [4]
Done!
![[1] Drone images in a transect. The images must have GPS metadata - position and also orientation](https://cdn.masto.host/mapstodonspace/media_attachments/files/114/186/213/932/061/516/original/f352d8bf90b02501.png "[1] Drone images in a transect. The images must have GPS metadata - position and also orientation")
![[2] Image footprints from DroneDB CLI as black outlines. You will need to adjust the styling for this effect](https://cdn.masto.host/mapstodonspace/media_attachments/files/114/186/213/950/846/831/original/916300627ff1a988.png "[2] Image footprints from DroneDB CLI as black outlines. You will need to adjust the styling for this effect")
![[3] Dissolved image footprint polygons as a single purple polygon](https://cdn.masto.host/mapstodonspace/media_attachments/files/114/186/213/653/827/170/original/7a79af9053cf601b.png "[3] Dissolved image footprint polygons as a single purple polygon")
![[4] Dissolved footprints, reprojected to a CRS expressed in metres and labelled with the $area. The label field reads:
to_string(round($area,2)) || ' square metres'
...which rounds the $area attribute to 2 decimal places, converts it to a string, then concatenates it with the context string contaning units.](https://cdn.masto.host/mapstodonspace/media_attachments/files/114/186/213/705/299/604/original/2919095816a95f77.png "[4] Dissolved footprints, reprojected to a CRS expressed in metres and labelled with the $area. The label field reads:
to_string(round($area,2)) || ' square metres'
...which rounds the $area attribute to 2 decimal places, converts it to a string, then concatenates it with the context string contaning units.")
Best practices for Cloud-Optimized GeoTIFFs: Cloud-Optimized #GeoTIFFs (#COG-s) have revolutionized the way large geospatial raster datasets are accessed and processed. From GeoStandards comes Best Practices Guide for this #cloudnativegeo format.
https://spatialists.ch/posts/2025/03-18-Best-practices-for-cloud-optimized-geotiffs/ #GIS #GISchat #geospatial #SwissGIS
Great to see the new QGIS map gallery 
FOSSGIS 2025: Helfende gesucht! / Helpers wanted! https://geoobserver.de/2025/03/17/fossgis-2025-helfende-gesucht/ #fossgis #fossgis2025 #gistribe #gischat #OSGeo #spatial #geospatial #opensource #opendata #osm #openstreetmap #gis #geo #geoObserver pls RT
Did you know that you can package a complete #QGIS 
project (incl. all your layers and data) in a single #Geopackage file, e.g. to move it to another system?
Practical examples, on the new hub:
https://hub.qgis.org/geopackages/?sort=upload_date&order=desc
If I wanted to persuade someone who only knows ArcGIS/ESRI products that they should look at QGIS/open-source tools, what particular features should I point to? Aside from being free and open-source - what wow features do they have? What can you do easily that you can't in Arc?
(I don't really know what Arc/ESRI is like these days as I haven't used it for over a decade)
With PROJ 9.6.0 you can now use the Spilhaus projection in #QGIS
For instance with the reference system ESRI:54099 "WGS_1984_Spilhaus_Ocean_Map_in_Square"
@qgis 3.42 has landed in #condaforge
https://anaconda.org/conda-forge/qgis
My favorite way to install #QGIS
In today's #gleo news: ScaledHeatMap and ScaledHexBin.
This is an old request from @jorgesanz - a heatmap/hexbin in which the map's scale factors into the field intensity, so that apparent visual intensity kinda stays constant across the screen (otherwise, zooming out means more data points with constant intensity enter the screen, thus increasing the apparent intensity).
WE ARE EXCITED TO LAUNCH THE LEARN QGIS WITH BNHR SITE!
A free learning platform that includes the most recent versions of our Essentials and Layers & Expressions courses.
We're grateful for everyone's continued support and wanted to give back in some small way.
Thank you so much and I hope this helps you in your QGIS journey!
Start learning QGIS for free at: https://learn-qgis.bnhr.xyz
Going forward, maps for AI: Here’s a big geospatial #AI wager: #Niantic, maker of AR game Pokémon Go among others, has announced that Scopely will acquire its game business and that Niantic will be spinning out a new geospatial #AI company, Niantic Spatial Inc.
https://spatialists.ch/posts/2025/03-13-going-forward-maps-for-ai/ #GIS #GISchat #geospatial #SwissGIS
The OSM Local Chapters & Communities Congress 2025 (LCCC 2025) is a virtual event where leaders and members of various OSM communities come together to share stories and learn from each other. The next annual congress will take place on 15th March 2025
https://wiki.openstreetmap.org/wiki/Foundation/Local_Chapters/Local_Chapters_Congress/2025
#OSM #OpenStreetMap #gischat #maps #LCCC
Webinar - Editing #LiDAR data in #QGIS 3.42 and beyond by @lutraconsulting
https://www.lutraconsulting.co.uk/blogs/webinar---editing-lidar-data-in-qgis-3-42-and-beyond
Don Meltz 
