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如果我有一个经纬度,比如116.425884,39.921842,使用geohash得到wx4g17d9xd,这个字符串表示一个矩形区域,那为什么不直接省略经纬度小数,比如116.42,39.92这样表示区域呢?直接省略小数有什么问题吗
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就是精度的问题啊,小数点后的位数越多精度越高。。比如经度 相差0.01度的情况下,位置大概相差1000米。而保留六位小数的情况下,大概就可以精确到米了。
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如果我有一个经纬度,比如116.425884,39.921842,使用geohash得到wx4g17d9xd,这个字符串表示一个矩形区域,那为什么不直接省略经纬度小数,比如116.42,39.92这样表示区域呢?直接省略小数有什么问题吗
The text was updated successfully, but these errors were encountered: