我如何计算距离原点经纬度到目的地lat谷歌地图上折线点的长度

Question

我想查找我使用google api绘制的Polyline的原点经纬度和目的纬度经度之间的距离。

Answer 1

表格CLLocation对象像

CLLocation *sourceLocation = [[CLLocation alloc]initWithLatitude:sourceCoordinate.latitude longitude:sourceCoordinate.longitude]; 

CLLocation *destinationLocation = [[CLLocation alloc]initWithLatitude:destinationCoordinate.latitude longitude:destinationCoordinate.longitude]; 

，并将它们传递给该方法。

-(CLLocationDistance)getDistanceFromSource:(CLLocation*)source andDestination:(CLLocation*)destination { 
    CLLocationDistance distance = [source distanceFromLocation:destination]; 
    return distance; 
}