asdqwe3124
asdqwe3124
/ vincenty.php
Created
July 21, 2018 03:12
— forked from lkacenja/vincenty.php
Vincenty Formula Jacked From Navigator PHP
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| // Inputs in Radians so degtorad degrees first. | |
| function vincenty($lat1, $lon1, $lat2, $lon2) { | |
| // Equitorial Radius | |
| $a = 6378137.0; | |
| // Polar Radius | |
| $b = 6356752.31424518; | |
| //Flattening of the ellipsoid | |
| $f = 0.00335281066; | |
| // Difference in longitude | |
| $L = $lon2 - $lon1; |
asdqwe3124
/ vincenty.php
Created
July 21, 2018 03:11
— forked from milesich/vincenty.php
Calculate geodesic distance (in meters) between two points specified by latitude/longitude using Vincenty inverse formula for ellipsoids.
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| <?php | |
| /** | |
| * Calculate geodesic distance (in meters) between two points specified by | |
| * latitude/longitude using Vincenty inverse formula for ellipsoids | |
| * | |
| * from: Vincenty inverse formula - T Vincenty, "Direct and Inverse | |
| * Solutions of Geodesics on the Ellipsoid with application of nested | |
| * equations", Survey Review, vol XXII no 176, 1975 | |
| * http://www.ngs.noaa.gov/PUBS_LIB/inverse.pdf | |
| * |