public function coordenadas($north, $east, $utmZone)
{
// This is the lambda knot value in the reference
$LngOrigin = Deg2Rad($utmZone * 6 - 183);
// The following set of class constants define characteristics of the
// ellipsoid, as defined my the WGS84 datum. These values need to be
// changed if a different dataum is used.
$FalseNorth = 0;
// South or North?
//if (lat < 0.) FalseNorth = 10000000. // South or North?
//else FalseNorth = 0.
$Ecc = 0.081819190842622;
// Eccentricity
$EccSq = $Ecc * $Ecc;
$Ecc2Sq = $EccSq / (1.0 - $EccSq);
$Ecc2 = sqrt($Ecc2Sq);
// Secondary eccentricity
$E1 = (1 - sqrt(1 - $EccSq)) / (1 + sqrt(1 - $EccSq));
$E12 = $E1 * $E1;
$E13 = $E12 * $E1;
$E14 = $E13 * $E1;
$SemiMajor = 6378137.0;
// Ellipsoidal semi-major axis (Meters)
$FalseEast = 500000.0;
// UTM East bias (Meters)
$ScaleFactor = 0.9996;
// Scale at natural origin
// Calculate the Cassini projection parameters
$M1 = ($north - $FalseNorth) / $ScaleFactor;
$Mu1 = $M1 / ($SemiMajor * (1 - $EccSq / 4.0 - 3.0 * $EccSq * $EccSq / 64.0 - 5.0 * $EccSq * $EccSq * $EccSq / 256.0));
$Phi1 = $Mu1 + (3.0 * $E1 / 2.0 - 27.0 * $E13 / 32.0) * sin(2.0 * $Mu1);
+(21.0 * $E12 / 16.0 - 55.0 * $E14 / 32.0) * sin(4.0 * $Mu1);
+(151.0 * $E13 / 96.0) * sin(6.0 * $Mu1);
+(1097.0 * $E14 / 512.0) * sin(8.0 * $Mu1);
$sin2phi1 = sin($Phi1) * sin($Phi1);
$Rho1 = $SemiMajor * (1.0 - $EccSq) / pow(1.0 - $EccSq * $sin2phi1, 1.5);
$Nu1 = $SemiMajor / sqrt(1.0 - $EccSq * $sin2phi1);
// Compute parameters as defined in the POSC specification. T, C and D
$T1 = tan($Phi1) * tan($Phi1);
$T12 = $T1 * $T1;
$C1 = $Ecc2Sq * cos($Phi1) * cos($Phi1);
$C12 = $C1 * $C1;
$D = ($east - $FalseEast) / ($ScaleFactor * $Nu1);
$D2 = $D * $D;
$D3 = $D2 * $D;
$D4 = $D3 * $D;
$D5 = $D4 * $D;
$D6 = $D5 * $D;
// Compute the Latitude and Longitude and convert to degrees
$lat = $Phi1 - $Nu1 * tan($Phi1) / $Rho1 * ($D2 / 2.0 - (5.0 + 3.0 * $T1 + 10.0 * $C1 - 4.0 * $C12 - 9.0 * $Ecc2Sq) * $D4 / 24.0 + (61.0 + 90.0 * $T1 + 298.0 * $C1 + 45.0 * $T12 - 252.0 * $Ecc2Sq - 3.0 * $C12) * $D6 / 720.0);
$lat = Rad2Deg($lat);
$lon = $LngOrigin + ($D - (1.0 + 2.0 * $T1 + $C1) * $D3 / 6.0 + (5.0 - 2.0 * $C1 + 28.0 * $T1 - 3.0 * $C12 + 8.0 * $Ecc2Sq + 24.0 * $T12) * $D5 / 120.0) / cos($Phi1);
$lon = Rad2Deg($lon);
// Create a object to store the calculated Latitude and Longitude values
$PC_LatLon['lat'] = $lat;
$PC_LatLon['lon'] = $lon;
// Returns a PC_LatLon object
return $PC_LatLon;
}
$ilat2 = Deg2Rad(0.5 + $wiersz['latitude'] * 360000.0);
$ilon2 = Deg2Rad(0.5 + $wiersz['longitude'] * 360000.0);
$dist = round(acos(sin($kord1) * sin($wiersz['latitude']) + cos($kord1) * cos($wiersz['latitude']) * cos(abs($kord2 - $wiersz['longitude']))) * 111.19, 1);
$lat1 = $kord1;
$lon1 = $kord2;
$lat2 = $wiersz['latitude'];
$lon2 = $wiersz['longitude'];
$result = 0.0;
$ilat1 = 0.5 + $lat1 * 360000.0;
$ilat2 = 0.5 + $lat2 * 360000.0;
$ilon1 = 0.5 + $lon1 * 360000.0;
$ilon2 = 0.5 + $lon2 * 360000.0;
$lat1 = Deg2Rad($lat1);
$lon1 = Deg2Rad($lon1);
$lat2 = Deg2Rad($lat2);
$lon2 = Deg2Rad($lon2);
if ($ilat1 == $ilat2 && $ilon1 == $ilon2) {
} else {
if ($ilon1 == $ilon2) {
if ($ilat1 > $ilat2) {
$result = 180.0;
}
} else {
$c = acos(sin($lat2) * sin($lat1) + cos($lat2) * cos($lat1) * cos($lon2 - $lon1));
$A = asin(cos($lat2) * sin($lon2 - $lon1) / sin($c));
$result = Rad2Deg($A);
if ($ilat2 > $ilat1 && $ilon2 > $ilon1) {
} else {
if ($ilat2 < $ilat1 && $ilon2 < $ilon1) {
$result = 180.0 - $result;
} else {