rrestad/kommunegrenser-2025-geojson
rrestad/kommunegrenser-2025-geojson
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Robert Restad f34ba3d72a Edit README.md
2025-01-17 01:10:47 +00:00
2025-compressed-with-state-name-id.json Improved version of the very compressed file, with Fylke ("state") name and id and interpolation to avoid county border clipping and erratic lines. 2025-01-17 01:05:08 +00:00
2025-uncompressed-with-county.json Same as 2025-uncompressed.json just with the addition to Fylke ID and Name for each Kommune. 2025-01-17 00:38:15 +00:00
2025-uncompressed.json Uncompressed version with 1.1 meter resolution - file size ~18Mb. 2025-01-16 23:13:13 +00:00
2025-very-compressed.json The very compressed version with 1.1km resolution (no intrapolation between coordinates, so the borders are edgy and square and uneven). 2025-01-16 22:57:10 +00:00
README.md Edit README.md 2025-01-17 01:10:47 +00:00

README.md

Kommunegrenser (County borders) Norway 2025 GeoJSON

Some Norwegian counties (kommune) was changed in 2024, both ID and borders - so updating this GeoJSON for my maps was a neccessity.

TODO: THE INFO BELOW NEEDS TO BE UPDATED

Explanation, the compressed file

The original file from GeoNorge/Kartverket is ~75 Mb and about 2.2 million entries, which won't work for most practical intents and purposes. I've compressed the GeoJSON coordinates with a simple algorithm (no intra -or extrapolation though) to get a quick-to-load version for mobile phone and workstations for the purpose of adding as an (invisible) clickable or mouseover helper layer on i.e. mapbox, leaflet or openstreetmaps. The resolution is about 1.10km (0.6 miles) and the county (kommune) borders are edgy and square, but will function sufficiently for its purpose.

Explanation, the uncompressed file

The second file (Uncompressed) has a resolution of 1.1 meter and is about 18Mb of size. It is accurate, but due to its size and high memory requirements - it may not work very well on regular laptops, workstations or phones.

(I've tested it on my workstation though, and it runs fairly smooth)

Explanation, the uncompressed file with fylke ("state") ID and name

Added Fylke ("State") information to each Kommune ("County").