大家好我需要转换以下形式的坐标:
N42-53.9°
W072-16.2°
INto有点类似于以下内容:
-90.7311
0.346944
非常感谢php函数 - 或者只是公式也足够好:)。
答案 0 :(得分:2)
我找到了online JS calculator和PHP solution:
<?php
function DMStoDEC($deg,$min,$sec)
{
// Converts DMS ( Degrees / minutes / seconds )
// to decimal format longitude / latitude
return $deg+((($min*60)+($sec))/3600);
}
function DECtoDMS($dec)
{
// Converts decimal longitude / latitude to DMS
// ( Degrees / minutes / seconds )
// This is the piece of code which may appear to
// be inefficient, but to avoid issues with floating
// point math we extract the integer part and the float
// part by using a string function.
$vars = explode(".",$dec);
$deg = $vars[0];
$tempma = "0.".$vars[1];
$tempma = $tempma * 3600;
$min = floor($tempma / 60);
$sec = $tempma - ($min*60);
return array("deg"=>$deg,"min"=>$min,"sec"=>$sec);
}
?>
答案 1 :(得分:0)
用简单的数学做到这一点:
arcsecond is 1⁄3,600 of a degree
arcminute is 1/60 of a degree
S,E negative, N,W positive
example: S 23° 25' 33.8: -1 * 23+25/60+33.8/3600 = -23,426055555555555555555555555556°