Public_Tools/wavelog
3
0
Fork 0
mirror of https://github.com/wavelog/wavelog.git synced 2026-03-25 19:42:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1179 from AndreasK79/8_char_gridsquare_fix

Browse Source 
If a gridsquare in a qso is longer than 6 characters, the QRA library…
This commit is contained in:
Andreas Kristiansen
2021-09-17 08:01:55 +02:00
committed by GitHub
parent 7e066bb963 a0e3cbaa91
commit f3679cf269
1 changed files with 39 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
application/libraries/Qra.php
View File

@@ -23,14 +23,18 @@ class Qra {
// calculate the bearing between two squares
function bearing($tx, $rx, $unit = 'M') {
if(strlen($tx) <= 6 && strlen($rx) <= 6) {
$my = qra2latlong($tx);
$stn = qra2latlong($rx);
$bearing = bearing($my[0], $my[1], $stn[0], $stn[1], $unit);
return $bearing;
if(strlen($tx) > 6) {
$tx = substr($tx, 0, 6);
}
if(strlen($rx) > 6) {
$rx = substr($rx, 0, 6);
}
$my = qra2latlong($tx);
$stn = qra2latlong($rx);
$bearing = bearing($my[0], $my[1], $stn[0], $stn[1], $unit);
return $bearing;
}
/*
@@ -40,6 +44,12 @@ class Qra {
*
*/
function distance($tx, $rx, $unit = 'M') {
if(strlen($tx) > 6) {
$tx = substr($tx, 0, 6);
}
if(strlen($rx) > 6) {
$rx = substr($rx, 0, 6);
}
// Calc LatLongs
$my = qra2latlong($tx);
$stn = qra2latlong($rx);
@@ -52,12 +62,9 @@ class Qra {
}
}
function distance($lat1, $lon1, $lat2, $lon2, $unit = 'M') {
$theta = $lon1 - $lon2;
$dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) + cos(deg2rad($lat1)) * cos(deg2rad($lat2)) *
cos(deg2rad($theta));
$dist = sin(deg2rad($lat1)) * sin(deg2rad($lat2)) + cos(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($theta));
$dist = acos($dist);
$dist = rad2deg($dist);
$dist = $dist * 60 * 1.1515;
@@ -111,27 +118,28 @@ function get_bearing($lat1, $lon1, $lat2, $lon2) {
return (rad2deg(atan2(sin(deg2rad($lon2) - deg2rad($lon1)) * cos(deg2rad($lat2)), cos(deg2rad($lat1)) * sin(deg2rad($lat2)) - sin(deg2rad($lat1)) * cos(deg2rad($lat2)) * cos(deg2rad($lon2) - deg2rad($lon1)))) + 360) % 360;
}
function qra2latlong($strQRA)
{
if (strlen($strQRA) %2 == 0) {
$strQRA = strtoupper($strQRA);
if (strlen($strQRA) == 4) $strQRA .= "MM";
if (!preg_match('/^[A-R]{2}[0-9]{2}[A-X]{2}$/',$strQRA)) return false;
list($a,$b,$c,$d,$e,$f) = str_split($strQRA,1);
$a = ord($a) - ord('A');
$b = ord($b) - ord('A');
$c = ord($c) - ord('0');
$d = ord($d) - ord('0');
$e = ord($e) - ord('A');
$f = ord($f) - ord('A');
$nLong = ($a*20) + ($c*2) + (($e+0.5)/12) - 180;
$nLat = ($b*10) + $d + (($f+0.5)/24) - 90;
$arLatLong = array($nLat,$nLong);
return($arLatLong);
} else {
return array(0, 0);
function qra2latlong($strQRA) {
if (strlen($strQRA) %2 == 0) {
$strQRA = strtoupper($strQRA);
if (strlen($strQRA) == 4) $strQRA .= "MM";
if(strlen($strQRA) > 6) {
$strQRA = substr($strQRA, 0, 6);
}
if (!preg_match('/^[A-R]{2}[0-9]{2}[A-X]{2}$/',$strQRA)) return false;
list($a,$b,$c,$d,$e,$f) = str_split($strQRA,1);
$a = ord($a) - ord('A');
$b = ord($b) - ord('A');
$c = ord($c) - ord('0');
$d = ord($d) - ord('0');
$e = ord($e) - ord('A');
$f = ord($f) - ord('A');
$nLong = ($a*20) + ($c*2) + (($e+0.5)/12) - 180;
$nLat = ($b*10) + $d + (($f+0.5)/24) - 90;
$arLatLong = array($nLat,$nLong);
return($arLatLong);
} else {
return array(0, 0);
}
}
/* End of file Qra.php */