如何计算谷歌地图上折线点的起点经纬度到目的地纬度经度的距离

Question

我想找到我使用 google api 绘制的折线的起点 lat long 和目的地 lat long 之间的距离。

Answer 1

Form CLLocation 对象，如

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

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

并将它们传递给此方法。

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