forked from opencaching/opencaching-pl
-
Notifications
You must be signed in to change notification settings - Fork 0
/
tm_ll_lib.php
179 lines (154 loc) · 4.93 KB
/
tm_ll_lib.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
<?php
/***************************************************************************
./lib/tm_ll_lib.php
--------------------
begin : Mon Sep 30 2009
copyright : (C) 2004 The OpenCaching Group
author : MardoQ
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
/****************************************************************************
Unicode Reminder メモ
sets up all neccessary variables and handle template and database-things
also useful functions
parameter: Lat
Lon
****************************************************************************/
// wczytywanie danych
function ll2utm($Lat,$Lon,$NS=null,$EW=null)
{
if ($Lat>90) die("Invalid Latitude");
if ($Lon>180) die("Invalid Lonitude");
//$NS=(strtoupper(($NS)=='S') && ($Lat>0));
//$EW=(strtoupper($EW)=='W');
if ($Lat<0) { $Lat=-$Lat; $NS='S';} else {$NS='N';};
if ($Lon<0) { $Lon=-$Lon; $EW='W';} else {$EW='E';};
$Deg2Rad = pi()/180.0;
//$Alpha100km='VQLFAVQLFAWRMGBWRMGBXSNHCXSNHCYTOJDYTOJDZUPKEZUPKEVQLFAVQLFAWRMGBWRMGBXSNHCXSNHCYTOJDYTOJDZUPKEZUPKE';
// UTM WGS84 Ellipsoid
$F0=0.9996;
$A1=6378137.0*$F0;
$B1=6356752.3142*$F0;
$K0=0;
$N0=0;
$E0=500000;
$N1=($A1-$B1)/($A1+$B1); // n
$N2=$N1*$N1;
$N3=$N2*$N1;
$E2=(($A1*$A1)-($B1*$B1))/($A1*$A1); // e^2
// przeliczenia
$K=$Lat*$Deg2Rad;
$L=$Lon*$Deg2Rad;
$SINK=sin($K);
$COSK=cos($K);
$TANK=$SINK/$COSK;
$TANK2=$TANK*$TANK;
$COSK2=$COSK*$COSK;
$COSK3=$COSK2*$COSK;
$K3=$K-$K0;
$K4=$K+$K0;
$Merid=floor(($Lon)/6)*6+3;
if (($Lat>=72) && ($Lon>=0))
{
if ($Lon<9) $Merid=3;
else if ($Lon<21) $Merid=15;
else if ($Lon<33) $Merid=27;
else if ($Lon<42) $Merid=39;
}
if (($Lat>=56) && ($Lat<64))
{
if (($Lon>=3) && ($Lon<12)) $Merid=9;
}
$MeridEW=$Merid<0;
if ($MeridEW)
{
$MeridianEW='W';
} else {
$MeridianEW='E';
}
$Meridian=abs($Merid);
$L0=$Merid*$Deg2Rad; // Lon of True Origin (3,9,15 etc)
// ArcofMeridian
$J3=$K3*(1+$N1+1.25*($N2+$N3));
$J4=sin($K3)*cos($K4)*(3*($N1+$N2+0.875*$N3));
$J5=sin(2*$K3)*cos(2*$K4)*(1.875*($N2+$N3));
$J6=sin(3*$K3)*cos(3*$K4)*35/24*$N3;
$M=($J3-$J4+$J5-$J6)*$B1;
// VRH2
$Temp=1-$E2*$SINK*$SINK;
$V=$A1/sqrt($Temp);
$R=$V*(1-$E2)/$Temp;
$H2=$V/$R-1.0;
$P=$L-$L0; $P2=$P*$P; $P4=$P2*$P2;
$J3=$M+$N0;
$J4=$V/2*$SINK*$COSK;
$J5=$V/24*$SINK*($COSK3)*(5-($TANK2)+9*$H2);
$J6=$V/720*$SINK*$COSK3*$COSK2*(61-58*($TANK2)+$TANK2*$TANK2);
$North=$J3+$P2*$J4+$P4*$J5+$P4*$P2*$J6;
// if ($NS) $North=$North+10000000.0; // UTM S hemisphere , nie wiem dlaczego ale w oryginale dodawa³o siê 10000000.0
$J7=$V*$COSK;
$J8=$V/6*$COSK3*($V/$R-$TANK2);
$J9=$V/120*$COSK3*$COSK2;
$J9=$J9*(5-18*$TANK2+$TANK2*$TANK2+14*$H2-58*$TANK2*$H2);
$East=$E0+$P*$J7+$P2*$P*$J8+$P4*$P*$J9;
$IEast=round($East); $INorth=round($North); // should strictly be trunc
$Easting=$IEast;
$Northing=$INorth;
$EastStr=''+abs($IEast);
$NorthStr=''+abs($INorth);
//while (EastStr.length<7) EastStr='0'+EastStr;
$EastStr = sprintf("%07.0f", $EastStr);
//while (NorthStr.length<7) NorthStr='0'+NorthStr;
$NorthStr = sprintf("%07.0f", $NorthStr);
$GR100km=substr($EastStr,1,2-1).substr($NorthStr,1,2-1);
$GRremainder=substr($EastStr,2,7-2).' '.substr($NorthStr,2,7-2);
// UTM
$LonZone=($Merid-3)/6+31;
if ($LonZone % 1 != 0)
$GR='non-UTM central meridian';
else
{
if ($IEast<100000 || $Lat<-80 || $IEast>899999 || $Lat>=84)
$GR='outside UTM grid area';
else
{
$Letters='ABCDEFGHJKLMNPQRSTUVWXYZ';
$Pos=round($Lat/8-0.5)+10+2;
$LatZone=substr($Letters,$Pos,1);
if ($LatZone>'X') $LatZone='X';
$Pos=round(abs($INorth)/100000-0.5);
while ($Pos>19) $Pos=$Pos-20;
if ($LonZone % 2 == 0)
{
$Pos=$Pos+5;
if ($Pos>19) $Pos=$Pos-20;
}
$N100km=substr($Letters,$Pos,1);
$Pos=$GR100km/10-1;
$P=$LonZone; while ($P>3) $P=$P-3;
$Pos=$Pos+(($P-1)*8);
$E100km=substr($Letters,$Pos,1);
$GR=$LonZone.$LatZone.$E100km.$N100km.' '.$GRremainder;
}
}
return array($LonZone,$LatZone,$NS,$Northing,$EW,$Easting);
/*
echo "EastStr ".$EastStr."<br>\n";
echo "NorthStr ".$NorthStr."<br>\n<br>";
echo "LatZone ".$LatZone."<br>\n";
echo "E100km ".$E100km."<br>\n";
echo "N100km ".$N100km."<br>\n";
echo "GRremainder ".$GRremainder."<br>\n<br> ";
echo "Easting ".$Easting."<br>\n";
echo "Northing ".$Northing."<br>\n";
echo "GridRef ".$GR."<br>\n";
*/
}
?>