garmin gps coordinates

using the AK Check mode for SN check. (SN generation algorithm) From source Coordinate type The values are as follows:The angular coordinates obtained by the 1:GPS device;2:gps obtained by the metric coordinates, sogou map coordinates used;3:google m

PHP searches nearby based on gps coordinates Define ('Earth _ RADIUS ', 6370.6935 ); Function vicinity ($ lng, $ lat, $ distance = 0.5 ){ // $ Distance = 0.5; // unit: 10 KM $ Radius = EARTH_RADIUS; $ Dlng = rad2deg (2 * asin (sin ($ distance/(2 * $ radius)/cos ($ lat ))); $ Dlat = rad2deg ($ distance * 10/$ radius );

How to coordinate coordinates of GPS longitude and latitude Original article:Http://hi.baidu.com/myonlylovegg/blog/item/dacc24d4db648acc51da4b28.html It is easy to convert longitude and latitude to decimal.As follows:Decimal degrees = degrees + minutes/60 + seconds/3600Example: 57 ° 55 '56. 6 "= 57 + 55/60 + 56.6/3600 = 57.9323888888888114 ° 65 '24. 6 "= 114 + 65/60 + 24.6/3600 = calculate the result by you

Scenario: the longitude and latitude coordinates of two GPS points are known. Calculate the distance between two points. 1.Distance/latitude relationship GPS: 22.514519, 113.380301 GPS: 22.511962, 113.380301 Distance: 284.6439379583341 Jl_wd = 284.6439379583341/(22.51451-22.511962) = 111712.6915064105572998430141

How can we use php to calculate the distance between two GPS longitude and latitude coordinates when using Baidu map? Now we will share the function code with you. How can we use php to calculate the distance between two GPS longitude and latitude coordinates when using Baidu map? Now we will share the function code wi

The following is my PHP code used to calculate the distance between two GPS longitude and latitude coordinates. If you need it, you can use it directly. The code is as follows:Copy code /*** Calculate the distance between two coordinates (meters)* @ Param float $ fP1Lat start point (latitude)* @ Param float $ fP1Lon start point (longitude)* @ Param float $ fP

) * Math.Cos (LATITUDE1); M = A * ((1-E2/4-3 * E2 * E2/64-5 * E2 * E2 * e2/256) * Latitude1-(3 * E2/8 + 3 * E2 * E2/32 + * E2 * E2 * e2/1024) * Math.sin (2 * latitude1) + (* E2 * e2/256 + * E2 * E2 * e2/1024) * Math.sin (4 * latitude1)-( * E2 * E2 * e2/3072) * Math.sin (6 * latitude1)) Xval = NN * (A + (1-t + C) * A * A * A/6 + (5-18 * t + T * t + * C-58 * ee) * A * a * a * a * a/120); yval= M + NN * Math.tan (LATITUDE1) * (A * A/2 + (5-t + 9 * C + 4 * c * C) * A * a * a * a/24 + (61-58 * t + T