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> wgs2gcj(35, 105)
{lat: 34.99909861697254, lng: 105.00328629710248}
> gcj2wgs_exact(34.99909861697254, 105.00328629710248)
{lat: 34.99999999920718, lng: 104.9999999993101}
> gcj2wgs(34.99909861697254, 105.00328629710248)
{lat: 34.99999091601437, lng: 104.99998369011693}
本来 exact 减法做反了，整个飞出去了……
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说起来现在这个 threshold 其实已经不是偏差大小，而是每次改进多少了。因此得到的 9 也多了很多…… |
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本来 exact 减法做反了，整个飞出去了……