[Ráfaga] #3276: elevation, geogame, projections, prisons, stamps, geomob

[Rafagas team]

#3276: elevation, geogame, projections, prisons, stamps, geomob

Wed, 21 Oct 2026 by Raf

* World elevation map with data from Mapterhorn, which gradually
adapts the colors to the viewed area and zoom level, by Bert Spaan
(also the author of Allmaps)

https://relief.bertspaan.nl/world?lang=en#3.29/39.85/-2.45

* FactMap is another daily geogame, this time about historical facts
that you have to match to the map, where points are awarded based on
how close you are to the correct answer.

https://factmap.world/

* An old-school, open-source projection demonstrator: a point of
light, a sphere, and a plane, made with Python, three.js, proj4js,
d3-geo

https://github.com/hypertidy/playproj

* "Detention Landscapes" aims to create an open-access database that
collects evidence of violations within immigrant detention centers in
all countries.

https://detentionlandscapes.uwazi.io

* User stage7 has collected all the stamps from the subway and train
stations in Tokyo, known as eki stamps, along with a small line map,
available for download as a 160 MB PDF.

https://stage7.net/dls/

* Remember that this Wednesday there's Geomob and beers in downtown
Barcelona....

https://thegeomob.com/post/oct-21st-2026-geomobbcn-details

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Translated by Isaac, Jaume, Jorge, and Wladimir

web: https://geoinquiets.github.io/rafagas/2026/10-21.html
mastodon: https://en.osm.town/@rafagaslinks