地图：在矩形内是lat / lgn [英] Maps: is lat/lgn inside a rectangle

问题描述

假设一个由西南纬度/经度（a，b）和纬度经度纬度/纬度（c，d）坐标定义的矩形：

  c，d 
 | ----------- | 
 | | 
 | | 
 | | 
 | ----------- | 
a，b 
  

如何确定另一对坐标x，y是否在长方形？这是正确的：

  a< x < c和b < y< d < - 如果为true，则表示x，y在矩形中？ 
  

我正在使用Google Maps API，并从中获取这些纬度/经度值。我只需要知道x，y是否确实在矩形内。

首先创建一个 LatLngBounds 来自西南和东北的coords，然后调用传入LatLng的方法来检查。

https://developers.google.com/maps/documentation/javascript / reference＃LatLngBounds

Assume a rectangle defined by south-west lat/lgn (a,b) and north-east lat/lng (c,d) coordinates:

           c,d
|-----------|
|           |
|           |
|           |
|-----------|
a,b

How do I determine if another pair of coordinates x,y are within that rectangle? Is this correct:

a < x < c AND b < y < d  <-- if true, it means x,y are in the rectangle???

I'm using Google Maps API and am getting these lat/lng values from it. I just need to know if x,y are indeed inside the rectangle.

解决方案

First create a LatLngBounds from the southwest and northeast coords, then call the contains method passing in the LatLng to check.

https://developers.google.com/maps/documentation/javascript/reference#LatLngBounds

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