lengthToDegrees

Convert a distance measurement (assuming a spherical Earth) from a real-world unit into degrees Valid units: miles, nauticalmiles, inches, yards, meters, metres, centimeters, kilometres, feet
将实际单位的距离测量值（假设地球为球体）转换为弧度。有效单位包括：miles, nauticalmiles, inches, yards, meters, metres, centimeters, kilometres, feet。

> npm install @turf/helpers

参数

参数	类型	描述
distance	number	in real units
units	string	可以是 degrees, radians, miles, or kilometers inches, yards, metres, meters, kilometres, kilometers.

返回

number - degrees

turf.lengthToDegrees(6671704.814011974, 'meters'); // 60