将纬度和经度转换为米或公里

发布于 2024-11-25 21:46:31 字数 87 浏览 1 评论 0原文

我有两个 MapKit 注释，显示纬度和经度。

我有什么方法可以通过现有的 Objective-C iOS API 函数来计算两者之间的距离吗？

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蓝梦月影 2024-12-02 21:46:31

MapKit框架包含很多函数，你会发现CLLocationDistance MKMetersBetweenMapPoints(MKMapPoint a, MKMapPoint b); 返回地图中两点之间的距离（以米为单位）。也许你可以用它来解决你的问题。

首先创建两个对应点，并获取距离：

MKMapPoint p1 = MKMapPointForCoordinate(coord1);
MKMapPoint p2 = MKMapPointForCoordinate(coord2);
CLLocationDistance dist = MKMetersBetweenMapPoints(p1, p2);

The MapKit framework contains many functions, and you will find CLLocationDistance MKMetersBetweenMapPoints(MKMapPoint a, MKMapPoint b); which returns the distance, in meters, between two points in the map. Maybe you could use it to solve your problem.

First create the two corresponding points, and the get the distance:

MKMapPoint p1 = MKMapPointForCoordinate(coord1);
MKMapPoint p2 = MKMapPointForCoordinate(coord2);
CLLocationDistance dist = MKMetersBetweenMapPoints(p1, p2);

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