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#gischat

24 posts21 participants0 posts today

In #foss4ge2025 I was talking about Mercator projection, and what is the difference with "Web-Mercator"

These images (at different zoom levels) show a loxodromic curve (at 45° N) in Web-Mercator (EPSG:3857) - that is a straight line in Mercator (EPSG:3395). In red the loxodromic or rhumline. In blue a straight line connecting the endpoints.

(To reproduce it in #QGIS, deselect "Clip features to canvas extent" for the affected layers as discussed in github.com/qgis/QGIS/issues/62)

Vector tiles for openstreetmap.org: Yesterday, the #OpenStreetMap Foundation (#OSMF) launched #vectortiles on #OSM, delivering a sharper and faster map powered by a new backend. Developers may use the OSMF-hosted tiles under the Vector Tile Usage Policy and apply their own map styles.
spatialists.ch/posts/2025/07/2 #GIS #GISchat #geospatial #SwissGIS

Spatialists – geospatial newsVector tiles for openstreetmap.org – Spatialists – geospatial news
More from Spatialists

Help from the #rstats folks. I have a landuse raster and a state raster. I want to tabulate the area of each landuse in each state. I've been reading {terra} docs but I can't figure out which function to use (`zonal` or `crostab`, `freq`).

I believe I've done this before but I can´t remember how. Any tips?

I would really like some recommendations for a maps mobile/webapp for noting down places that is NOT Google maps #gischat

Note: I used to use maps.me but it has become quite enshittified. I dis some research and recently explored maptera for Android, but it's missing a lot of features and can't export your data. I'm finding it hard to identify any alternative to Google maps.

Digital housekeeping leads to recalling interesting stories. Here's a good one - part 3 of answering questions about terrain, water and vegetation with a small backpackable drone. Plus @qgis and @OpenDroneMap

...and some maybe-nice cartography

As always, I'm open for #consulting, #contracting, #freelance work and even permanent jobs to work on these things. These days preferring the 'vision setting', leadership and training components.

spatialised.net/mapping-a-smal