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Full-stack observability with actually useful AI | Grafana Cloud
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Transport coordinate between earth(WGS-84) and mars in china(GCJ-02)
eviltransform is a compact library for converting geographic coordinates between the global WGS-84 system (used by GPS) and the Chinese GCJ-02 system (used by many Chinese map services such as Google Maps China and AutoNavi). The project implements forward and inverse transformations (WGS→GCJ and GCJ→WGS) as well as a higher-precision inverse method (GCJ→WGS exact) that trades speed for sub-meter accuracy, and it includes a utility for computing geodesic distance in meters. ...
Lets you monitor your GPS-phone. You have full control of your own data. Both client software (for phones) and server software is free open source, so you might set up your own server or use the default one at opengeotracker.org
This app be used by victims in disaster to upload their position with a GPS enabled device so that rescue workers may find them accurately on a map. This works on Android, iPhone, Nokia, Windows Mobile, Palm OS & Blackberry. I made this for RHoK #3.
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