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A comment on Why is the Gaza Strip blurry on Google Maps?. Parent comment

Re:Why is the Gaza Strip blurry on Google Maps? by Uberphallus on Tuesday May 18, 2021 @01:02AM (#27191406)
It's "impossible".

Private, independent geographical surveying is illegal in China. [0] So technically you can't do it even in the local coordinate system.

[0] https://en.wikipedia.org/wiki/Restrictions_on_geographic_dat...

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Re:Why is the Gaza Strip blurry on Google Maps? by Closi on Tuesday May 18, 2021 @02:23AM (#27191765)
But I guess to OPs point, you could make a non-authoritative map based on satellite imagery, it just wouldn’t be legal to use in China.
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Re:Why is the Gaza Strip blurry on Google Maps? by fps_doug on Tuesday May 18, 2021 @03:20AM (#27192035)
OSM has an extensive article about mapping in China. Generally it's not allowed. Still, in the bigger OSM is quite accurate. :>
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Re:Why is the Gaza Strip blurry on Google Maps? by Uberphallus on Tuesday May 18, 2021 @04:14AM (#27192298)
Anything that can be seen from a satellite is quite accurate, that's true, but oftentimes things like number of lanes, type or direction of the roads is unknown, footpaths in rural areas are very spotty. Basically anything that requires local human verification (addresses, business location, etc) is off limits and accuracy in those points comes from pre-ban times (or illegal activity).
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