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I learned something new from the article and that is that GCJ-02 - the coordinate system used in China - is terrifyingly terrible: "'Topographic map non-linear

I learned something new from the article and that is that GCJ-02 - the coordinate system used in China - is terrifyingly terrible: "'Topographic map non-linear confidentiality algorithm' is a geodetic datum formulated by the Chinese State Bureau of Surveying and Mapping, and based on WGS-84. It uses an obfuscation algorithm which adds apparently random offsets to both the latitude and longitude, with the alleged goal of improving national security. There is a license fee associated with using this mandatory algorithm in China."

peterkelly 6y ago
Wrong thread; I think you meant to post here: https://news.ycombinator.com/item?id=24917394 https://news.ycombinator.com/item?id=24917394
- dmd 6y ago
  How does that even happen? Server burp?
  - roryokane 6y ago
    It could be that they had multiple tabs open, were drafting their comment in an external text editor, and hit Ctrl-Tab one too many times before pasting their comment into the textarea.