gps coordinates tracker

Not much to say, your own code on the line, you can directly to use./** * Calculates the distance between two coordinates (m) * @param float $fP 1Lat starting point (latitude) * @param float $fP 1Lon Start (longitude) * @param float $fP 2Lat end point (latitude) * @param fl Oat $fP 2Lon Endpoint (longitude) * @return int */function distancebetween ($fP 1Lat, $fP 1Lon, $fP 2Lat, $fP 2Lon) {$fEARTH _radius = 6378137;/ /angle converted to radians $fradlo

Not much to say, your own code on the line, you can directly to use. /** * Calculates the distance between two coordinates (m) * @param float $fP 1Lat starting point (latitude) * @param float $fP 1Lon Start (longitude) * @param float $fP 2Lat end point (latitude) * @param fl Oat $fP 2Lon Endpoint (longitude) * @return int */function distancebetween ($fP 1Lat, $fP 1Lon, $fP 2Lat, $fP 2Lon) {$fEARTH _radius = 6378137;/ /angle converted to radians $fra

Calculate the distance according to the latitude and longitude, and convert Baidu to GPS coordinates (PHP version) lt ;? Php // Convert Baidu coordinates to GPS coordinates $ lnglat = '2017. 437518, 31.224665 '; functionFromBaiduToGpsXY ($ lnglat) {// longitude, latitude $

This article describes how to use PHP to calculate the distance between two GPS coordinates of Baidu Map. it is a typical application developed for Baidu map interface, for more information about how to calculate the distance between two GPS coordinates on Baidu map using PHP, see the following example. Share it with y

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

Original: php+ Baidu map Api+javascript implementation of GPS coordinates and Baidu coordinate conversion examplephp+ Baidu Map Api+javascript implementation of GPS coordinates and Baidu coordinate conversion example

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