#dggs — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #dggs, aggregated by home.social.
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a5R brings the A5 pentagonal geospatial index to R.
Equal-area pentagonal cells across 31 resolutions, encoded as 64-bit integers, with millimetre-level precision at the finest scale 🗺️
R package by Hugh Graham; a5 by Felix Palmer
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H3/PostGIS: Hands-on example: Darafei Praliaskouski, member of the #PostGIS PSC, walks through an interesting hands-on case study of modelling #LoRa radio tower range in the mountains of Georgia using #H3 and PostGIS. The example covers data preparation, #DGGS indexing, and...
https://spatialists.ch/posts/2026/02/27-h3-postgis-hands-on-example/ #GIS #GISchat #geospatial #SwissGIS -
H3/PostGIS: Hands-on example: @komzpa, member of the #PostGIS PSC, walks through an interesting hands-on case study of modelling #LoRa radio tower range in the mountains of Georgia using #H3 and PostGIS. The example covers data preparation, #DGGS indexing, and...
https://spatialists.ch/posts/2026/02/27-h3-postgis-hands-on-example/ #GIS #GISchat #geospatial #SwissGIS -
AI-ready OGC standards: The #OGC ran an #AI-#DGGS pilot on disaster management and derived five pillars for geospatial AI readiness from it: tool-ability, machine-readable metadata, guardrails, reproducibility, and trust & security. Among the interesting follow-up work...
https://spatialists.ch/posts/2026/02/22-ai-ready-ogc-standards/ #GIS #GISchat #geospatial #SwissGIS -
AI-ready OGC standards: The #OGC ran an #AI-#DGGS pilot on disaster management and derived five pillars for geospatial AI readiness from it: tool-ability, machine-readable metadata, guardrails, reproducibility, and trust & security. Among the interesting follow-up work...
https://spatialists.ch/posts/2026/02/22-ai-ready-ogc-standards/ #GIS #GISchat #geospatial #SwissGIS -
AI-ready OGC standards: The #OGC ran an #AI-#DGGS pilot on disaster management and derived five pillars for geospatial AI readiness from it: tool-ability, machine-readable metadata, guardrails, reproducibility, and trust & security. Among the interesting follow-up work...
https://spatialists.ch/posts/2026/02/22-ai-ready-ogc-standards/ #GIS #GISchat #geospatial #SwissGIS -
AI-ready OGC standards: The #OGC ran an #AI-#DGGS pilot on disaster management and derived five pillars for geospatial AI readiness from it: tool-ability, machine-readable metadata, guardrails, reproducibility, and trust & security. Among the interesting follow-up work...
https://spatialists.ch/posts/2026/02/22-ai-ready-ogc-standards/ #GIS #GISchat #geospatial #SwissGIS -
AI-ready OGC standards: The #OGC ran an #AI-#DGGS pilot on disaster management and derived five pillars for geospatial AI readiness from it: tool-ability, machine-readable metadata, guardrails, reproducibility, and trust & security. Among the interesting follow-up work...
https://spatialists.ch/posts/2026/02/22-ai-ready-ogc-standards/ #GIS #GISchat #geospatial #SwissGIS -
Happy holidays, season‘s greetings, merry Christmas, and a happy new year, my hexagonal friends, stay in shape 🌐🪩🎄
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@jsonsingh Don’t limit yourself to the above mentioned ones of our are interested in #DGGS - learn about actual DGGS and gridding concepts and not a handful of fancy technologies, look at OGC API DGGS, look at HEALPIX, DGGAL, GeoPlegma, DGGRID, ISO DGGS definitions
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I am looking to learn more about #DGGS and use cases surrounding to it. If you think your #geospatial data could some #h3, #a5 or #s2 sprinkle on top, please reach out.
My Blog on using uber h3 for #GIS analysis: https://jsonsingh.com/blog/uber-h3/
Learn more about #DGGS here: https://en.wikipedia.org/wiki/Discrete_global_grid -
DuckDB extension for A5 DGGS: A community extension by Query.Farm brings native support for the (equal-area, pentagonal-cell-based) #A5 Discrete Global Grid System (#DGGS) to #DuckDB. In development since April, the extension includes a set of functions for coordinate...
https://spatialists.ch/posts/2025/10/19-duckdb-extension-for-a5-dggs/ #GIS #GISchat #geospatial #SwissGIS -
Discrete Global Grid Systems: Geospatial foundation models and the rise of Discrete Global Grid Systems (DGGS) are reshaping how we think about, and interact with, spatial data. In an episode of the @geomob podcast, @luis_de_sousa offers an overview of, and introduction to #DGGS-s
https://spatialists.ch/posts/2025/09/05-discrete-global-grid-systems/ #GIS #GISchat #geospatial #SwissGIS -
Kevin Sahr DGGRID 8.41 was released, with full support for #IGEO7 #Z7 #ZORDER and #Z3 indexing for #ISEA 3,4 and 7 H #DGGS the binaries on conda-forge are updated. And we are now testing HTML readme/docs:
https://github.com/sahrk/DGGRID/releases
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Great new paper in #BigEarthData on #DGGS practical application on #landuse mapping at #ManaakiWhenua #LandcareResearch New Zealand. While they used #H3 due to available tooling they described the generalisable methodology really well.
https://www.tandfonline.com/doi/full/10.1080/20964471.2024.2429847 #geospatial #gis -
#DGGS #API is for a new and innovative way of sharing and indexing #geospatial data, that works with multi-resolution location identifiers across scales on the whole globe. API ergonomics are important for wide uptake and usability, open for feedback 🌍🌐
https://www.ogc.org/requests/ogc-requests-public-comment-on-candidate-ogc-api-dggs-standard/
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Checking in from the #OGC @opengeospatial member meeting in Goyang, South Korea. Here for #DGGS. Side info #OvertureMaps is a principal member now and Bentley has acquired Cesium 3d globe software
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Dggrid | http://Anaconda.org You can now install #DGGRID on Apple Silicon/ osx-arm64 architecture. I also managed to update to the stable 8.1 version. DGGRID version 8.3 with exciting news features and indexing systems will land soon too #DGGS #geospatial #grid https://anaconda.org/conda-forge/dggrid
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Advancing Digital Earth Modeling - Hexagonal Multi-Structural Elements In Icosahedral DGGS For Enhanced Geospatial Data Processing
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https://doi.org/10.1016/j.envsoft.2023.105922 <-- shared paper
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https://en.wikipedia.org/wiki/Discrete_global_grid <-- DGD wiki page
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[the math is way over my head, hence the wiki page leak, but a good read nonetheless]
“HIGHLIGHTS:
• Hexagonal multi-structural elements enhance Earth's surface modeling precision.
• Integration of indexing and conversion rules improves geospatial data computation.
• DGGRID implementation shows increased precision in raster and vector data modeling.
• Addresses limitations in existing software for Earth observation data.
• Pioneering approach expands geospatial data processing applications…"
#GIS #spatial #mapping #DiscreteGlobalGrid #DGG #DGGS #indexing #conversion #rules #computation #Hexagonal #DGGRID #raster #vector #data #model #modeling #earthobservation #remotesensing #grid #vertices #edges #icosahedral #projections #coordinates #representation
