Every map of China is wrong

This page summarizes the projects mentioned and recommended in the original post on news.ycombinator.com

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  • eviltransform

    Transport coordinate between earth(WGS-84) and mars in china(GCJ-02).

  • Here is an open source implementation that converts from WGS84 to GJC2:

    https://github.com/googollee/eviltransform/blob/master/java/...

    https://github.com/googollee/eviltransform/blob/master/java/...

    And converting the other way by a kind of binary search, I guess using a flaw in the obfuscation:

    https://github.com/googollee/eviltransform/blob/master/java/...

    All seems very silly by today standards and I would think it hardly made sense back in 2002 when this was apparently devised.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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