计算指南针朝向CLLocation-iOS的Haversine函数 [英] Calculate compass heading to a CLLocation - Haversine functions for iOS

问题描述

我了解如何获取2个CLLocations之间的距离.我需要确定从一个CLLocation到另一个CLLocation的广义罗盘方位(N，NE，E等).

I understand how to get the distance between 2 CLLocations. I need to determine the generalized compass bearing (N, NE, E etc.) from a CLLocation to another CLLocation.

在我用haversine公式实现某种推论之前，您是否发现有一个通用的开源库或代码片段可以解决使用或不使用haversine的问题?

Before I implement something to derive the bearing with the haversine formula is there a generally adapted open source library or code fragment that you've found solves this problem with or without using haversine?

谢谢！

推荐答案

我使用了

I've used some of the snippets available from Movable Type Scripts - both haversine and spherical law of cosines available. The code examples are all in JavaScript, but they translate very easily to C or Objective C.

这篇关于计算指南针朝向CLLocation-iOS的Haversine函数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！