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It doesn't use directly OpenStreetMap data, it uses official open data from Rennes Metropole (which is published with a license compatible with OSM), and some of this data has been integrated in OpenStreetMap. All detailed in the 'making of' section and open source on github.
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The IGN (the French national institution of cartography), has for some years developed the free creation of map from their data, then recently developed the same service with OSM data.Ĭhristopher Gutteridge describes how he spent countless hours making a 3D model of Ventor (a place in the Isle of white) by placing blocks in game (battling zombies at night time all the while!) He did use OpenStreetMap at this stage, for planning, however later went on to create a converter, which took OpenStreetMap data and produced a minecraft map in an automated way. "Based on available OpenStreetMap data, our engine make Minecraft worlds from everywhere on the Earth’s surface – on-demand." (for a small fee)
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This has been the first (commercial) implementation of the concept with some free demontration maps on a few cities.
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