ohai.social

Jonatan HildénTurns out that this particular example comes with a problem. GDAL cannot reproject the Wagner VII projection:ERROR 1: PROJ: pipeline: Pipeline: A forward operation couldn't be constructed ERROR 1: Too many points (441 out of 441) failed to transform, unable to compute output bounds.Is there some workaround? If not, I guess I need to just convert the damn map to vectors …<a href="https://vis.social/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a> <a href="https://vis.social/tags/qgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#qgis</a>

Hugh GrahamOn the left is a standard median S2 composite. On the right is a geomedoid (cell with the smallest distance to the geomedian). It aint quick but this is what I've been working towards for a while now so I'm amped. Better compositing coming to vrtility 📦 soon. <a href="https://fosstodon.org/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#rstats</a> <a href="https://fosstodon.org/tags/rspatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#rspatial</a> <a href="https://fosstodon.org/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a>

geoObserverGDAL Released: v3.10.3 <a href="https://geoobserver.de/2025/04/08/gdal-released-v3-10-3/" rel="nofollow noopener" translate="no" target="_blank">https://geoobserver.de/2025/04/08/gdal-released-v3-10-3/</a> via @GdalOrg <a href="https://mastodon.social/@EvenRouault" class="u-url mention" rel="nofollow noopener" target="_blank">@EvenRouault</a> <a href="https://mastodon.social/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a> <a href="https://mastodon.social/tags/ogr" class="mention hashtag" rel="nofollow noopener" target="_blank">#ogr</a> <a href="https://mastodon.social/tags/qgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#qgis</a> <a href="https://mastodon.social/tags/switch2qgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#switch2qgis</a> <a href="https://mastodon.social/tags/fossgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#fossgis</a> <a href="https://mastodon.social/tags/foss4g" class="mention hashtag" rel="nofollow noopener" target="_blank">#foss4g</a> <a href="https://mastodon.social/tags/opensource" class="mention hashtag" rel="nofollow noopener" target="_blank">#opensource</a> <a href="https://mastodon.social/tags/gistribe" class="mention hashtag" rel="nofollow noopener" target="_blank">#gistribe</a> <a href="https://mastodon.social/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> <a href="https://mastodon.social/tags/spatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#spatial</a> <a href="https://mastodon.social/tags/geospatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#geospatial</a> <a href="https://mastodon.social/tags/gis" class="mention hashtag" rel="nofollow noopener" target="_blank">#gis</a> <a href="https://mastodon.social/tags/geo" class="mention hashtag" rel="nofollow noopener" target="_blank">#geo</a> <a href="https://mastodon.social/tags/geoObserver" class="mention hashtag" rel="nofollow noopener" target="_blank">#geoObserver</a> pls RT

Hugh GrahamIt doesn't look like much but this is my first geometric median composite with <a href="https://fosstodon.org/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#rstats</a> - I'm getting close now!! <a href="https://fosstodon.org/tags/rspatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#rspatial</a> <a href="https://fosstodon.org/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a>

Hugh Graham{vrtility} gets its first vignette - how to make HLS composites. I think this example really starts to show how awesome the VRT format can be and how much we can do with it! <a href="https://fosstodon.org/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#rstats</a> <a href="https://fosstodon.org/tags/rspatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#rspatial</a> <a href="https://fosstodon.org/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a> <a href="https://permian-global-research.github.io/vrtility/articles/HLS.html" rel="nofollow noopener" translate="no" target="_blank">https://permian-global-research.github.io/vrtility/articles/HLS.html</a>

Rafagas LinksGDAL, the translation library for raster and vector geospatial data formats, has a new stable version 3.10.2 from February 2025 called "Gulf Of Mexico" <a href="https://en.osm.town/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a><a href="https://gdal.org/en/stable/" rel="nofollow noopener" translate="no" target="_blank">https://gdal.org/en/stable/</a>

Giuseppe BilottaI have a <a href="https://fediscience.org/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> / <a href="https://fediscience.org/tags/QGIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#QGIS</a> question for the <a href="https://fediscience.org/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIS</a>‌ commnunity in the Fediverse <a href="https://fediscience.org/tags/askFedi" class="mention hashtag" rel="nofollow noopener" target="_blank">#askFedi</a> concerning the use of geolocation arrays in raster datsets, i.e. in bands the hold (for example) the latitude and longitude of each cell in the raster.I'm used to produce datasets in UTM format, for which adding the appropriate georeference metadata is simple. However, in this case I'm producing a raster dataset where the cells are distributed in a “warped” area (think aerial imagery with non-affine transform from data matrix to geo coordinates). I have arrays holding resp. the latitude and longitude of each pixel, and can add it to the dataset, I can specify the GCRS (lat/lon WGS84), but I can't seem to be able to find the metadata to add to the raster so that the goelocation arrays are correctly identified as such.Online there seems to be only sparse documentation about this, generally implying that this is only supported for specific dataset types in specific formats (usually, the standard format from common satellite data) and the only pages I've found on how to “roll your own” refer to a single old-ish mailing list contribution that recommends the use of a sidecar VRT file. Are there any more modern solutions possible?

FOSSGIS VereinDas optimale T-Shirt für jede <a href="https://mastodon.online/tags/FOSSGIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#FOSSGIS</a> <a href="https://mastodon.online/tags/FOSS4G" class="mention hashtag" rel="nofollow noopener" target="_blank">#FOSS4G</a> oder Community Sprint. <a href="https://mastodon.online/tags/Gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#Gdal</a> rockt! Gesichtet auf der <a href="https://mastodon.online/tags/FOSSGIS2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#FOSSGIS2025</a> Get ready for <a href="https://mastodon.online/tags/FOSSGIS2026" class="mention hashtag" rel="nofollow noopener" target="_blank">#FOSSGIS2026</a>! <a href="https://my-store-9f5dbe.creator-spring.com/listing/gdal" rel="nofollow noopener" translate="no" target="_blank">https://my-store-9f5dbe.creator-spring.com/listing/gdal</a> <a href="https://mastodon.online/tags/OSGeo" class="mention hashtag" rel="nofollow noopener" target="_blank">#OSGeo</a>

Marcos Dione<a href="https://mastodon.online/@vwbusguy" class="u-url mention" rel="nofollow noopener" target="_blank">@vwbusguy</a> From elevation data I derive four datasets: slope angle, elevation based colors, contour lines and hill shades. The latter could be made with <a href="https://en.osm.town/tags/Blender" class="mention hashtag" rel="nofollow noopener" target="_blank">#Blender</a>, and it looks awesome, but its _really_ expensive and I haven't managed to fully automate it, so I use a tool called <a href="https://en.osm.town/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> like everybody else. Besides that, I use almost the same stack as <a href="https://en.osm.town/tags/OpenStreetMap" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenStreetMap</a>: <a href="https://en.osm.town/tags/carto" class="mention hashtag" rel="nofollow noopener" target="_blank">#carto</a>-css for styling, <a href="https://en.osm.town/tags/mapnik" class="mention hashtag" rel="nofollow noopener" target="_blank">#mapnik</a> for rendering, and my own set of tools for orchestrating and serving that.

Hugh GrahamWIP pkgdown site now up for {vrtility} <a href="https://permian-global-research.github.io/vrtility/" rel="nofollow noopener" translate="no" target="_blank">https://permian-global-research.github.io/vrtility/</a> Managed to iron out a good few bugs and a bit more parallel stuff so it's starting to come together 😀 <a href="https://fosstodon.org/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#rstats</a> <a href="https://fosstodon.org/tags/rspatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#rspatial</a> <a href="https://fosstodon.org/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a>

Oslandia👋 <a href="https://fosstodon.org/tags/introduction" class="mention hashtag" rel="nofollow noopener" target="_blank">#introduction</a>🗺 Oslandia is a French SME specializing in OpenSource Geographical Systems ( <a href="https://fosstodon.org/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIS</a> ). We design and implement IT systems to manage geographical data.🎓 We are an opensource editor of <a href="https://fosstodon.org/tags/QGIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#QGIS</a>, experts of <a href="https://fosstodon.org/tags/PostGIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#PostGIS</a>, <a href="https://fosstodon.org/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a>, <a href="https://fosstodon.org/tags/Python" class="mention hashtag" rel="nofollow noopener" target="_blank">#Python</a>, Web 3D visualization & more …👩‍💻 Our team of ~30 (great) people is distributed all over France & full remote is at the heart of our organization.🔗 More info : <a href="https://oslandia.com" rel="nofollow noopener" translate="no" target="_blank">https://oslandia.com</a> and linkedin➡️ We will post company updates and GIS-related infos

geoObserver26: Happy Birthday PROJ! <a href="https://geoobserver.de/2025/03/18/26-happy-birthday-proj/" rel="nofollow noopener" translate="no" target="_blank">https://geoobserver.de/2025/03/18/26-happy-birthday-proj/</a> <a href="https://mastodon.social/tags/proj" class="mention hashtag" rel="nofollow noopener" target="_blank">#proj</a> <a href="https://mastodon.social/tags/gistribe" class="mention hashtag" rel="nofollow noopener" target="_blank">#gistribe</a> <a href="https://mastodon.social/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> <a href="https://mastodon.social/tags/fossgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#fossgis</a> <a href="https://mastodon.social/tags/foss4g" class="mention hashtag" rel="nofollow noopener" target="_blank">#foss4g</a> <a href="https://mastodon.social/tags/OSGeo" class="mention hashtag" rel="nofollow noopener" target="_blank">#OSGeo</a> <a href="https://mastodon.social/tags/spatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#spatial</a> <a href="https://mastodon.social/tags/geospatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#geospatial</a> <a href="https://mastodon.social/tags/opensource" class="mention hashtag" rel="nofollow noopener" target="_blank">#opensource</a> <a href="https://mastodon.social/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> <a href="https://mastodon.social/tags/GRASS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GRASS</a> <a href="https://mastodon.social/tags/MapServer" class="mention hashtag" rel="nofollow noopener" target="_blank">#MapServer</a> <a href="https://mastodon.social/tags/PostGIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#PostGIS</a> <a href="https://mastodon.social/tags/QGIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#QGIS</a> <a href="https://mastodon.social/tags/R" class="mention hashtag" rel="nofollow noopener" target="_blank">#R</a> <a href="https://mastodon.social/tags/FME" class="mention hashtag" rel="nofollow noopener" target="_blank">#FME</a> <a href="https://mastodon.social/tags/ESRI" class="mention hashtag" rel="nofollow noopener" target="_blank">#ESRI</a> <a href="https://mastodon.social/tags/gis" class="mention hashtag" rel="nofollow noopener" target="_blank">#gis</a> <a href="https://mastodon.social/tags/geo" class="mention hashtag" rel="nofollow noopener" target="_blank">#geo</a> <a href="https://mastodon.social/tags/geoObserver" class="mention hashtag" rel="nofollow noopener" target="_blank">#geoObserver</a> pls RT @mapserving

Alex G RiceIn Geodata Ramblings blog, a new post: GIS command-line "gems" for Linux and macOS. Let me know of any other good ones which I should have listed.<a href="https://mapstodon.space/tags/linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#linux</a> <a href="https://mapstodon.space/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a> <a href="https://mapstodon.space/tags/ogr" class="mention hashtag" rel="nofollow noopener" target="_blank">#ogr</a> <a href="https://mapstodon.space/tags/cng" class="mention hashtag" rel="nofollow noopener" target="_blank">#cng</a> <a href="https://mapstodon.space/tags/CNG2025" class="mention hashtag" rel="nofollow noopener" target="_blank">#CNG2025</a> <a href="https://mapstodon.space/tags/duckdb" class="mention hashtag" rel="nofollow noopener" target="_blank">#duckdb</a> <a href="https://mapstodon.space/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#python</a> <a href="https://mapstodon.space/tags/postgis" class="mention hashtag" rel="nofollow noopener" target="_blank">#postgis</a> <a href="https://mapstodon.space/tags/gis" class="mention hashtag" rel="nofollow noopener" target="_blank">#gis</a> <a href="https://ricegeo.dev/gis-cli-gems/" rel="nofollow noopener" translate="no" target="_blank">https://ricegeo.dev/gis-cli-gems/</a>

Philippe MassicotteI've added a new experimental branch to the <a href="https://fosstodon.org/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#rstats</a> rnaturalearth package to test reading data directly from the <a href="https://fosstodon.org/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> virtual file system, supporting both raster and vector data. This enhancement allows reading the data without needing to download and unzip it into a temporary folder.You can try it here: <a href="https://github.com/ropensci/rnaturalearth/tree/feat/use-virtual-gdal" rel="nofollow noopener" translate="no" target="_blank">https://github.com/ropensci/rnaturalearth/tree/feat/use-virtual-gdal</a>Feel free to give it a try, and let me know how it works for you!<a href="https://fosstodon.org/tags/spatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#spatial</a> <a href="https://fosstodon.org/tags/gis" class="mention hashtag" rel="nofollow noopener" target="_blank">#gis</a> <a href="https://fosstodon.org/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a>

Hugh GrahamThis {vrtility} 📦 project is still a WIP but I think the potential and flexibility of the approach is huge - basically just let <a href="https://fosstodon.org/tags/gdal" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdal</a> do all the work. I've finally got my head around how the sequence of things should fit together but it is still missing a few important features. If you're interested in <a href="https://fosstodon.org/tags/rspatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#rspatial</a> <a href="https://fosstodon.org/tags/remotesensing" class="mention hashtag" rel="nofollow noopener" target="_blank">#remotesensing</a> I'd love your thoughts and feedback. powered by <a href="https://fosstodon.org/tags/gdalraster" class="mention hashtag" rel="nofollow noopener" target="_blank">#gdalraster</a> 🚀 <a href="https://github.com/Permian-Global-Research/vrtility/tree/better-readme" rel="nofollow noopener" translate="no" target="_blank">https://github.com/Permian-Global-Research/vrtility/tree/better-readme</a>

Michael Sumnerwe ran a multi-decade extraction of points-in-time for 46000 points 1993-2024 (at bottom level, it's variable so we indexed the level upfront for each point) ran this the "traditional way" using <a href="https://rstats.me/tags/terra" class="mention hashtag" rel="nofollow noopener" target="_blank">#terra</a> <a href="https://rstats.me/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> to extract points from relevant layers (point-sets grouped by date,level) for salt,temp,u,v,w,mld - ran on 28cpus with <a href="https://rstats.me/tags/furrr" class="mention hashtag" rel="nofollow noopener" target="_blank">#furrr</a>/#future took ~80min will get a public dataset to repeat the example for illustration (elephant seals I hope)

Michael Sumnerwhirlwind tour of <a href="https://rstats.me/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> multidim via the python api bindings, with <a href="https://rstats.me/tags/RStats" class="mention hashtag" rel="nofollow noopener" target="_blank">#RStats</a> <a href="https://www.hypertidy.org/posts/2025-03-12-r-py-multidim/r-py-multidim" rel="nofollow noopener" translate="no" target="_blank">https://www.hypertidy.org/posts/2025-03-12-r-py-multidim/r-py-multidim</a>

💧🌏 Greg CocksSatellite Imagery You Can Play With -- <a href="https://hackaday.com/2025/03/10/satellite-imagery-you-can-play-with/" rel="nofollow noopener" translate="no" target="_blank">https://hackaday.com/2025/03/10/satellite-imagery-you-can-play-with/</a> <-- shared technical article -- <a href="https://tech.marksblogg.com/satellogic-open-data-feed.html" rel="nofollow noopener" translate="no" target="_blank">https://tech.marksblogg.com/satellogic-open-data-feed.html</a> <-- shared ‘how to’ article -- [this post should not be considered an endorsement of any product or service] <a href="https://techhub.social/tags/GIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GIS</a> <a href="https://techhub.social/tags/spatial" class="mention hashtag" rel="nofollow noopener" target="_blank">#spatial</a> <a href="https://techhub.social/tags/mapping" class="mention hashtag" rel="nofollow noopener" target="_blank">#mapping</a> <a href="https://techhub.social/tags/Satellogic" class="mention hashtag" rel="nofollow noopener" target="_blank">#Satellogic</a> <a href="https://techhub.social/tags/EarthView" class="mention hashtag" rel="nofollow noopener" target="_blank">#EarthView</a> <a href="https://techhub.social/tags/satellite" class="mention hashtag" rel="nofollow noopener" target="_blank">#satellite</a> <a href="https://techhub.social/tags/cubesat" class="mention hashtag" rel="nofollow noopener" target="_blank">#cubesat</a> <a href="https://techhub.social/tags/NewSat" class="mention hashtag" rel="nofollow noopener" target="_blank">#NewSat</a> <a href="https://techhub.social/tags/microsatellites" class="mention hashtag" rel="nofollow noopener" target="_blank">#microsatellites</a> <a href="https://techhub.social/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> <a href="https://techhub.social/tags/python" class="mention hashtag" rel="nofollow noopener" target="_blank">#python</a> <a href="https://techhub.social/tags/DuckDB" class="mention hashtag" rel="nofollow noopener" target="_blank">#DuckDB</a> <a href="https://techhub.social/tags/H3" class="mention hashtag" rel="nofollow noopener" target="_blank">#H3</a> <a href="https://techhub.social/tags/JSON" class="mention hashtag" rel="nofollow noopener" target="_blank">#JSON</a> <a href="https://techhub.social/tags/Lindel" class="mention hashtag" rel="nofollow noopener" target="_blank">#Lindel</a> <a href="https://techhub.social/tags/Parquet" class="mention hashtag" rel="nofollow noopener" target="_blank">#Parquet</a> <a href="https://techhub.social/tags/remotesensing" class="mention hashtag" rel="nofollow noopener" target="_blank">#remotesensing</a> <a href="https://techhub.social/tags/earthobservation" class="mention hashtag" rel="nofollow noopener" target="_blank">#earthobservation</a> <a href="https://techhub.social/tags/Aleph" class="mention hashtag" rel="nofollow noopener" target="_blank">#Aleph</a> <a href="https://techhub.social/tags/NORAD" class="mention hashtag" rel="nofollow noopener" target="_blank">#NORAD</a> <a href="https://techhub.social/tags/location" class="mention hashtag" rel="nofollow noopener" target="_blank">#location</a> <a href="https://techhub.social/tags/howto" class="mention hashtag" rel="nofollow noopener" target="_blank">#howto</a> <a href="https://techhub.social/tags/tutorial" class="mention hashtag" rel="nofollow noopener" target="_blank">#tutorial</a> <a href="https://techhub.social/tags/code" class="mention hashtag" rel="nofollow noopener" target="_blank">#code</a> <a href="https://techhub.social/tags/coding" class="mention hashtag" rel="nofollow noopener" target="_blank">#coding</a> <a href="https://techhub.social/tags/metadata" class="mention hashtag" rel="nofollow noopener" target="_blank">#metadata</a> <a href="https://techhub.social/tags/imagery" class="mention hashtag" rel="nofollow noopener" target="_blank">#imagery</a>

Stephan HeuelAfter reading <a href="https://fedi.simonwillison.net/@simon" class="u-url mention" rel="nofollow noopener" target="_blank">@simon</a>’s post I quickly checked whether ChatGPT’s code interpreter has <a href="https://swiss.social/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> installed - answer is no (first screenshot). But it can run geopandas or fiona: just tried it with a silly example (second screenshot). So, you could do geospatial analysis with ChatGPT (I leave it to you to the reader to decide whether this is ethical, climate-friendly, …) <a href="https://swiss.social/tags/gischat" class="mention hashtag" rel="nofollow noopener" target="_blank">#gischat</a> <a href="https://fedi.simonwillison.net/@simon/114112347744782008" rel="nofollow noopener" translate="no" target="_blank">https://fedi.simonwillison.net/@simon/114112347744782008</a>

Michael Sumner<a href="https://rstats.me/tags/GDAL" class="mention hashtag" rel="nofollow noopener" target="_blank">#GDAL</a> (non-multidim) *can* read your 1-row, 1-col or even 1-pixel arraythis changes everything (the fact is that the NETCDF driver is more cryptic about the list of variables it will read this way , enough to have made me entirely wrong about this for a very long time)that pixel value 1339 is days since as.Date("1978-01-01") + 1339 <a href="https://rstats.me/tags/rstats" class="mention hashtag" rel="nofollow noopener" target="_blank">#rstats</a> proceed accordingly: <a href="https://gist.github.com/mdsumner/a9e74531cafce071de9b96588b3b9975" rel="nofollow noopener" translate="no" target="_blank">https://gist.github.com/mdsumner/a9e74531cafce071de9b96588b3b9975</a>

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