计算“像乌鸦一样”距离PHP [英] Calculate "as the crow flies" distance php

问题描述

我目前正在计算一个函数内的一个wordpress网站上两点之间的距离。我通过调用

I am currently calculating the driving distance between two points on one of my wordpress websites inside of a function. I accomplish this using the google distance matrix by calling

wp_remote_get(
    "http://maps.googleapis.com/maps/api/distancematrix/json?origins=".
    urlencode($origin).
    "&destinations=".
    urlencode($destination).
    "&sensor=false&units=imperial"
)

然后插入原点和目的地用户通过表单输入到网址中。是否有可能使用类似的方法来计算像乌鸦一样的距离，或者是否必须重做我的函数？

and then inserting the origins and destinations users have entered via a form into the url. Is it possible to use a similar approach to calculating an "as the crow flies" distance or do I have to rework my function?

推荐答案

< （Lat1，lon1）到（lat2，lon2）

Distance between 2 points: (lat1,lon1) to (lat2,lon2)

distance = acos(
     cos(lat1 * (PI()/180)) *
     cos(lon1 * (PI()/180)) *
     cos(lat2 * (PI()/180)) *
     cos(lon2 * (PI()/180))
     +
     cos(lat1 * (PI()/180)) *
     sin(lon1 * (PI()/180)) *
     cos(lat2 * (PI()/180)) *
     sin(lon2 * (PI()/180))
     +
     sin(lat1 * (PI()/180)) *
     sin(lat2 * (PI()/180))
    ) * 3959

---

3959是以英里为单位的地球半径。用KM中的
半径替换此值（或任何其他单位），以获得同一单元的结果。

---

3959 is the Earth radius in Miles. Replace this value with radius in KM, (or any other unit), to get results on the same unit.

您可以通过比较来验证您的实施此 工作示例 ：

You can verify your implementation by comparing to this worked example:

这篇关于计算“像乌鸦一样”距离PHP的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！