客户端具有以用户查询的点为中心显示地图以及计算两点距离的功能。
The client has two main functions, one is displaying a map with the center of the user request, the other is calculating the distance of two points.
大圆弧长计算球面两点之间的最短距离。
The great-circle distance calculates the shortest distance between any two points on the surface of a sphere.
如何计算纬度和经度指定的两点之间的距离？
How do I calculate the distance between two points specified by latitude and longitude?
度量为坐标系定义的几何函数，有了它，坐标系上任意两点间的距离可以通过点的坐标来计算。
A geometric function defined for a coordinate system such that the distance between any two points in that system may be determined from their coordinates.
为计算地面上具有高程的两点间的大地距离，构造了一个过两已知点的新椭球，确定出了新椭球的有关参数，在此基础上给出了计算大地距离的非迭代法和大椭圆法，并与传统方法进行了精度比较。
In order to calculate the geodetic distance of two points that are far from the refernced ellipsoid, a new ellipsoid which passes the two points is constructed, then its parameters are determined.
为计算地面上具有高程的两点间的大地距离，构造了一个过两已知点的新椭球，确定出了新椭球的有关参数，在此基础上给出了计算大地距离的非迭代法和大椭圆法，并与传统方法进行了精度比较。
In order to calculate the geodetic distance of two points that are far from the refernced ellipsoid, a new ellipsoid which passes the two points is constructed, then its parameters are determined.
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