找到2个经纬度点之间的距离（单位：米）

Question

这些是我的2个点我怎样才能得到他们之间的距离（米）？

52.33816422 -106.2828899 52.33816422 -106.2828634

所有convesions programms的寻找ddmm.mmmmmmm和dddmm.mmmmmmmm

Answer 1

def distance loc1, loc2 
    rad_per_deg = Math::PI/180 # PI/180 
    rkm = 6371     # Earth radius in kilometers 
    rm = rkm * 1000    # Radius in meters 

    dlat_rad = (loc2[0]-loc1[0]) * rad_per_deg # Delta, converted to rad 
    dlon_rad = (loc2[1]-loc1[1]) * rad_per_deg 

    lat1_rad, lon1_rad = loc1.map {|i| i * rad_per_deg } 
    lat2_rad, lon2_rad = loc2.map {|i| i * rad_per_deg } 

    a = Math.sin(dlat_rad/2)**2 + Math.cos(lat1_rad) * Math.cos(lat2_rad) * Math.sin(dlon_rad/2)**2 
    c = 2 * Math::atan2(Math::sqrt(a), Math::sqrt(1-a)) 

    rm * C# Delta in meters 
end 

puts distance [52.33816422, -106.2828899],[52.33816422, -106.2828634] 
# Will return the answer 

从这里：How to calculate the distance between two GPS coordinates without using Google Maps API?

编辑：你的坐标更新