Ysurac /
FlightAirMap
@@ -18,86 +18,86 @@ discard block |
||
| 18 | 18 | public function parse($buffer) { |
| 19 | 19 | // Not yet finished, no CRC checks |
| 20 | 20 | $data = array(); |
| 21 | - $typehex = substr($buffer,0,1); |
|
| 22 | - if ($typehex == '*' || $typehex == ':') $hex = substr($buffer,1,-1); |
|
| 21 | + $typehex = substr($buffer, 0, 1); |
|
| 22 | + if ($typehex == '*' || $typehex == ':') $hex = substr($buffer, 1, -1); |
|
| 23 | 23 | //elseif ($typehex == '@' || $typehex == '%') $hex = substr($buffer,13,-13); |
| 24 | - elseif ($typehex == '@' || $typehex == '%') $hex = substr($buffer,13,-1); |
|
| 25 | - else $hex = substr($buffer,1,-1); |
|
| 26 | - $bin = gmp_strval( gmp_init($hex,16), 2); |
|
| 24 | + elseif ($typehex == '@' || $typehex == '%') $hex = substr($buffer, 13, -1); |
|
| 25 | + else $hex = substr($buffer, 1, -1); |
|
| 26 | + $bin = gmp_strval(gmp_init($hex, 16), 2); |
|
| 27 | 27 | //if (strlen($hex) == 28 && $this->parityCheck($hex,$bin)) { |
| 28 | 28 | //if (strlen($hex) == 28) { |
| 29 | 29 | if (strlen($hex) == 28 || strlen($hex) == 16) { |
| 30 | - $df = intval(substr($bin,0,5),2); |
|
| 30 | + $df = intval(substr($bin, 0, 5), 2); |
|
| 31 | 31 | //$ca = intval(substr($bin,5,3),2); |
| 32 | 32 | // Only support DF17 for now |
| 33 | 33 | //if ($df == 17 || ($df == 18 && ($ca == 0 || $ca == 1 || $ca == 6))) { |
| 34 | - if (($df == 17 || $df == 18) && ($this->parityCheck($hex,$bin) || $typehex == '@')) { |
|
| 35 | - $icao = substr($hex,2,6); |
|
| 34 | + if (($df == 17 || $df == 18) && ($this->parityCheck($hex, $bin) || $typehex == '@')) { |
|
| 35 | + $icao = substr($hex, 2, 6); |
|
| 36 | 36 | $data['hex'] = $icao; |
| 37 | - $tc = intval(substr($bin,32,5),2); |
|
| 38 | - $ec = intval(substr($bin,37,3),2); |
|
| 37 | + $tc = intval(substr($bin, 32, 5), 2); |
|
| 38 | + $ec = intval(substr($bin, 37, 3), 2); |
|
| 39 | 39 | //$data['category'] = $ec; |
| 40 | 40 | if ($tc >= 1 && $tc <= 4) { |
| 41 | 41 | //callsign |
| 42 | - $csbin = substr($bin,40,56); |
|
| 42 | + $csbin = substr($bin, 40, 56); |
|
| 43 | 43 | $charset = str_split('#ABCDEFGHIJKLMNOPQRSTUVWXYZ#####_###############0123456789######'); |
| 44 | 44 | $cs = ''; |
| 45 | - $cs .= $charset[intval(substr($csbin,0,6),2)]; |
|
| 46 | - $cs .= $charset[intval(substr($csbin,6,6),2)]; |
|
| 47 | - $cs .= $charset[intval(substr($csbin,12,6),2)]; |
|
| 48 | - $cs .= $charset[intval(substr($csbin,18,6),2)]; |
|
| 49 | - $cs .= $charset[intval(substr($csbin,24,6),2)]; |
|
| 50 | - $cs .= $charset[intval(substr($csbin,30,6),2)]; |
|
| 51 | - $cs .= $charset[intval(substr($csbin,36,6),2)]; |
|
| 52 | - $cs .= $charset[intval(substr($csbin,42,6),2)]; |
|
| 53 | - $cs = str_replace('_','',$cs); |
|
| 54 | - $cs = str_replace('#','',$cs); |
|
| 45 | + $cs .= $charset[intval(substr($csbin, 0, 6), 2)]; |
|
| 46 | + $cs .= $charset[intval(substr($csbin, 6, 6), 2)]; |
|
| 47 | + $cs .= $charset[intval(substr($csbin, 12, 6), 2)]; |
|
| 48 | + $cs .= $charset[intval(substr($csbin, 18, 6), 2)]; |
|
| 49 | + $cs .= $charset[intval(substr($csbin, 24, 6), 2)]; |
|
| 50 | + $cs .= $charset[intval(substr($csbin, 30, 6), 2)]; |
|
| 51 | + $cs .= $charset[intval(substr($csbin, 36, 6), 2)]; |
|
| 52 | + $cs .= $charset[intval(substr($csbin, 42, 6), 2)]; |
|
| 53 | + $cs = str_replace('_', '', $cs); |
|
| 54 | + $cs = str_replace('#', '', $cs); |
|
| 55 | 55 | $callsign = $cs; |
| 56 | 56 | $data['ident'] = $callsign; |
| 57 | 57 | } elseif ($tc >= 9 && $tc <= 18) { |
| 58 | 58 | // Check Q-bit |
| 59 | - $q = substr($bin,47,1); |
|
| 59 | + $q = substr($bin, 47, 1); |
|
| 60 | 60 | if ($q) { |
| 61 | - $n = intval(substr($bin,40,7).substr($bin,48,4),2); |
|
| 62 | - $alt = $n*25-1000; |
|
| 61 | + $n = intval(substr($bin, 40, 7).substr($bin, 48, 4), 2); |
|
| 62 | + $alt = $n*25 - 1000; |
|
| 63 | 63 | $data['altitude'] = $alt; |
| 64 | 64 | } |
| 65 | 65 | // Check odd/even flag |
| 66 | - $oe = substr($bin,53,1); |
|
| 66 | + $oe = substr($bin, 53, 1); |
|
| 67 | 67 | //if ($oe) => odd else even |
| 68 | 68 | // 131072 is 2^17 since CPR latitude and longitude are encoded in 17 bits. |
| 69 | - $cprlat = intval(substr($bin,54,17),2)/131072.0; |
|
| 70 | - $cprlon = intval(substr($bin,71,17),2)/131072.0; |
|
| 71 | - if ($oe == 0) $this::$latlon[$icao] = array('latitude' => $cprlat,'longitude' => $cprlon,'created' => time()); |
|
| 69 | + $cprlat = intval(substr($bin, 54, 17), 2)/131072.0; |
|
| 70 | + $cprlon = intval(substr($bin, 71, 17), 2)/131072.0; |
|
| 71 | + if ($oe == 0) $this::$latlon[$icao] = array('latitude' => $cprlat, 'longitude' => $cprlon, 'created' => time()); |
|
| 72 | 72 | elseif (isset($this::$latlon[$icao]) && (time() - $this::$latlon[$icao]['created']) < 10) { |
| 73 | 73 | $cprlat_odd = $cprlat; |
| 74 | 74 | $cprlon_odd = $cprlon; |
| 75 | 75 | $cprlat_even = $this::$latlon[$icao]['latitude']; |
| 76 | 76 | $cprlon_even = $this::$latlon[$icao]['longitude']; |
| 77 | - $j = 59*$cprlat_even-60*$cprlat_odd+0.5; |
|
| 78 | - $lat_even = (360.0/60)*($j%60+$cprlat_even); |
|
| 79 | - $lat_odd = (360.0/59)*($j%59+$cprlat_odd); |
|
| 77 | + $j = 59*$cprlat_even - 60*$cprlat_odd + 0.5; |
|
| 78 | + $lat_even = (360.0/60)*($j%60 + $cprlat_even); |
|
| 79 | + $lat_odd = (360.0/59)*($j%59 + $cprlat_odd); |
|
| 80 | 80 | if ($lat_even >= 270) $lat_even = $lat_even - 360; |
| 81 | 81 | if ($lat_odd >= 270) $lat_odd = $lat_odd - 360; |
| 82 | 82 | // check latitude zone |
| 83 | 83 | if ($this->cprNL($lat_even) == $this->cprNL($lat_odd)) { |
| 84 | 84 | if ($this::$latlon[$icao]['created'] > time()) { |
| 85 | - $ni = $this->cprN($lat_even,0); |
|
| 86 | - $m = floor($cprlon_even*($this->cprNL($lat_even)-1) - $cprlon_odd * $this->cprNL($lat_even)+0.5); |
|
| 87 | - $lon = (360.0/$ni)*($m%$ni+$cprlon_even); |
|
| 85 | + $ni = $this->cprN($lat_even, 0); |
|
| 86 | + $m = floor($cprlon_even*($this->cprNL($lat_even) - 1) - $cprlon_odd*$this->cprNL($lat_even) + 0.5); |
|
| 87 | + $lon = (360.0/$ni)*($m%$ni + $cprlon_even); |
|
| 88 | 88 | $lat = $lat_even; |
| 89 | - if ($lon > 180) $lon = $lon -360; |
|
| 89 | + if ($lon > 180) $lon = $lon - 360; |
|
| 90 | 90 | if ($lat > -91 && $lat < 91 && $lon > -181 && $lon < 181) { |
| 91 | 91 | //if ($globalDebug) echo 'cs : '.$cs.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon; |
| 92 | 92 | $data['latitude'] = $lat; |
| 93 | 93 | $data['longitude'] = $lon; |
| 94 | 94 | } |
| 95 | 95 | } else { |
| 96 | - $ni = $this->cprN($lat_odd,1); |
|
| 97 | - $m = floor($cprlon_even*($this->cprNL($lat_odd)-1) - $cprlon_odd * $this->cprNL($lat_odd)+0.5); |
|
| 98 | - $lon = (360.0/$ni)*($m%$ni+$cprlon_odd); |
|
| 96 | + $ni = $this->cprN($lat_odd, 1); |
|
| 97 | + $m = floor($cprlon_even*($this->cprNL($lat_odd) - 1) - $cprlon_odd*$this->cprNL($lat_odd) + 0.5); |
|
| 98 | + $lon = (360.0/$ni)*($m%$ni + $cprlon_odd); |
|
| 99 | 99 | $lat = $lat_odd; |
| 100 | - if ($lon > 180) $lon = $lon -360; |
|
| 100 | + if ($lon > 180) $lon = $lon - 360; |
|
| 101 | 101 | if ($lat > -91 && $lat < 91 && $lon > -181 && $lon < 181) { |
| 102 | 102 | //if ($globalDebug) echo 'icao : '.$icao.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon.' second'."\n"; |
| 103 | 103 | $data['latitude'] = $lat; |
@@ -109,15 +109,15 @@ discard block |
||
| 109 | 109 | } |
| 110 | 110 | } elseif ($tc == 19) { |
| 111 | 111 | // speed & heading |
| 112 | - $v_ew_dir = intval(substr($bin,45,1)); |
|
| 113 | - $v_ew = intval(substr($bin,46,10),2); |
|
| 114 | - $v_ns_dir = intval(substr($bin,56,1)); |
|
| 115 | - $v_ns = intval(substr($bin,57,10),2); |
|
| 112 | + $v_ew_dir = intval(substr($bin, 45, 1)); |
|
| 113 | + $v_ew = intval(substr($bin, 46, 10), 2); |
|
| 114 | + $v_ns_dir = intval(substr($bin, 56, 1)); |
|
| 115 | + $v_ns = intval(substr($bin, 57, 10), 2); |
|
| 116 | 116 | if ($v_ew_dir) $v_ew = -1*$v_ew; |
| 117 | 117 | if ($v_ns_dir) $v_ns = -1*$v_ns; |
| 118 | - $speed = sqrt($v_ns*$v_ns+$v_ew*$v_ew); |
|
| 119 | - $heading = atan2($v_ew,$v_ns)*360.0/(2*pi()); |
|
| 120 | - if ($heading <0) $heading = $heading+360; |
|
| 118 | + $speed = sqrt($v_ns*$v_ns + $v_ew*$v_ew); |
|
| 119 | + $heading = atan2($v_ew, $v_ns)*360.0/(2*pi()); |
|
| 120 | + if ($heading < 0) $heading = $heading + 360; |
|
| 121 | 121 | $data['speed'] = $speed; |
| 122 | 122 | $data['heading'] = $heading; |
| 123 | 123 | } |
@@ -132,7 +132,7 @@ discard block |
||
| 132 | 132 | * Lookup table to convert the latitude to index. |
| 133 | 133 | */ |
| 134 | 134 | private function cprNL($lat) { |
| 135 | - if ($lat < 0) $lat = -$lat; // Table is simmetric about the equator. |
|
| 135 | + if ($lat < 0) $lat = -$lat; // Table is simmetric about the equator. |
|
| 136 | 136 | if ($lat < 10.47047130) return 59; |
| 137 | 137 | if ($lat < 14.82817437) return 58; |
| 138 | 138 | if ($lat < 18.18626357) return 57; |
@@ -194,7 +194,7 @@ discard block |
||
| 194 | 194 | return 1; |
| 195 | 195 | } |
| 196 | 196 | |
| 197 | - private function cprN($lat,$isodd) { |
|
| 197 | + private function cprN($lat, $isodd) { |
|
| 198 | 198 | $nl = $this->cprNL($lat) - $isodd; |
| 199 | 199 | if ($nl > 1) return $nl; |
| 200 | 200 | else return 1; |
@@ -218,9 +218,9 @@ discard block |
||
| 218 | 218 | 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000, 0x000000 |
| 219 | 219 | ); |
| 220 | 220 | $crc = 0; |
| 221 | - $checksum = intval(substr($msg,22,6),16); |
|
| 221 | + $checksum = intval(substr($msg, 22, 6), 16); |
|
| 222 | 222 | for ($j = 0; $j < strlen($bin); $j++) { |
| 223 | - if ($bin[$j]) $crc = $crc^intval($modes_checksum_table[$j],0); |
|
| 223 | + if ($bin[$j]) $crc = $crc^intval($modes_checksum_table[$j], 0); |
|
| 224 | 224 | } |
| 225 | 225 | if ($crc == $checksum) return true; |
| 226 | 226 | else { |
@@ -242,10 +242,10 @@ discard block |
||
| 242 | 242 | $msg['aircraftid'] = hexdec($data['address']); |
| 243 | 243 | $msg['hex'] = $data['address']; |
| 244 | 244 | $msg['flightid'] = hexdec($data['address']); |
| 245 | - $msg['date_gen'] = date('Y/m/d',$data['timestamp']); |
|
| 246 | - $msg['time_gen'] = date('H:i:s',$data['timestamp']).'.180'; |
|
| 247 | - $msg['date_log'] = date('Y/m/d',$data['timestamp']); |
|
| 248 | - $msg['time_log'] = date('H:i:s',$data['timestamp']).'.180'; |
|
| 245 | + $msg['date_gen'] = date('Y/m/d', $data['timestamp']); |
|
| 246 | + $msg['time_gen'] = date('H:i:s', $data['timestamp']).'.180'; |
|
| 247 | + $msg['date_log'] = date('Y/m/d', $data['timestamp']); |
|
| 248 | + $msg['time_log'] = date('H:i:s', $data['timestamp']).'.180'; |
|
| 249 | 249 | $msg['callsign'] = $data['ident']; |
| 250 | 250 | $msg['altitude'] = ''; |
| 251 | 251 | $msg['speed'] = ''; |
@@ -258,7 +258,7 @@ discard block |
||
| 258 | 258 | $msg['emergency'] = ''; |
| 259 | 259 | $msg['SPI'] = ''; |
| 260 | 260 | $msg['ground'] = ''; |
| 261 | - $result[] = implode(',',$msg); |
|
| 261 | + $result[] = implode(',', $msg); |
|
| 262 | 262 | } |
| 263 | 263 | if (isset($data['latitude']) && $data['latitude'] != 0) { |
| 264 | 264 | $msg = array(); |
@@ -268,10 +268,10 @@ discard block |
||
| 268 | 268 | $msg['aircraftid'] = hexdec($data['address']); |
| 269 | 269 | $msg['hex'] = $data['address']; |
| 270 | 270 | $msg['flightid'] = hexdec($data['address']); |
| 271 | - $msg['date_gen'] = date('Y/m/d',$data['timestamp']); |
|
| 272 | - $msg['time_gen'] = date('H:i:s',$data['timestamp']).'.180'; |
|
| 273 | - $msg['date_log'] = date('Y/m/d',$data['timestamp']); |
|
| 274 | - $msg['time_log'] = date('H:i:s',$data['timestamp']).'.180'; |
|
| 271 | + $msg['date_gen'] = date('Y/m/d', $data['timestamp']); |
|
| 272 | + $msg['time_gen'] = date('H:i:s', $data['timestamp']).'.180'; |
|
| 273 | + $msg['date_log'] = date('Y/m/d', $data['timestamp']); |
|
| 274 | + $msg['time_log'] = date('H:i:s', $data['timestamp']).'.180'; |
|
| 275 | 275 | $msg['callsign'] = ''; |
| 276 | 276 | if (isset($data['altitude'])) $msg['altitude'] = $data['altitude']; |
| 277 | 277 | else $msg['altitude'] = ''; |
@@ -289,7 +289,7 @@ discard block |
||
| 289 | 289 | $msg['SPI'] = 0; |
| 290 | 290 | if (isset($data['ground'])) $msg['ground'] = 1; |
| 291 | 291 | else $msg['ground'] = 0; |
| 292 | - $result[] = implode(',',$msg); |
|
| 292 | + $result[] = implode(',', $msg); |
|
| 293 | 293 | } |
| 294 | 294 | return $result; |
| 295 | 295 | } |
@@ -19,10 +19,15 @@ discard block |
||
| 19 | 19 | // Not yet finished, no CRC checks |
| 20 | 20 | $data = array(); |
| 21 | 21 | $typehex = substr($buffer,0,1); |
| 22 | - if ($typehex == '*' || $typehex == ':') $hex = substr($buffer,1,-1); |
|
| 22 | + if ($typehex == '*' || $typehex == ':') { |
|
| 23 | + $hex = substr($buffer,1,-1); |
|
| 24 | + } |
|
| 23 | 25 | //elseif ($typehex == '@' || $typehex == '%') $hex = substr($buffer,13,-13); |
| 24 | - elseif ($typehex == '@' || $typehex == '%') $hex = substr($buffer,13,-1); |
|
| 25 | - else $hex = substr($buffer,1,-1); |
|
| 26 | + elseif ($typehex == '@' || $typehex == '%') { |
|
| 27 | + $hex = substr($buffer,13,-1); |
|
| 28 | + } else { |
|
| 29 | + $hex = substr($buffer,1,-1); |
|
| 30 | + } |
|
| 26 | 31 | $bin = gmp_strval( gmp_init($hex,16), 2); |
| 27 | 32 | //if (strlen($hex) == 28 && $this->parityCheck($hex,$bin)) { |
| 28 | 33 | //if (strlen($hex) == 28) { |
@@ -68,8 +73,9 @@ discard block |
||
| 68 | 73 | // 131072 is 2^17 since CPR latitude and longitude are encoded in 17 bits. |
| 69 | 74 | $cprlat = intval(substr($bin,54,17),2)/131072.0; |
| 70 | 75 | $cprlon = intval(substr($bin,71,17),2)/131072.0; |
| 71 | - if ($oe == 0) $this::$latlon[$icao] = array('latitude' => $cprlat,'longitude' => $cprlon,'created' => time()); |
|
| 72 | - elseif (isset($this::$latlon[$icao]) && (time() - $this::$latlon[$icao]['created']) < 10) { |
|
| 76 | + if ($oe == 0) { |
|
| 77 | + $this::$latlon[$icao] = array('latitude' => $cprlat,'longitude' => $cprlon,'created' => time()); |
|
| 78 | + } elseif (isset($this::$latlon[$icao]) && (time() - $this::$latlon[$icao]['created']) < 10) { |
|
| 73 | 79 | $cprlat_odd = $cprlat; |
| 74 | 80 | $cprlon_odd = $cprlon; |
| 75 | 81 | $cprlat_even = $this::$latlon[$icao]['latitude']; |
@@ -77,8 +83,12 @@ discard block |
||
| 77 | 83 | $j = 59*$cprlat_even-60*$cprlat_odd+0.5; |
| 78 | 84 | $lat_even = (360.0/60)*($j%60+$cprlat_even); |
| 79 | 85 | $lat_odd = (360.0/59)*($j%59+$cprlat_odd); |
| 80 | - if ($lat_even >= 270) $lat_even = $lat_even - 360; |
|
| 81 | - if ($lat_odd >= 270) $lat_odd = $lat_odd - 360; |
|
| 86 | + if ($lat_even >= 270) { |
|
| 87 | + $lat_even = $lat_even - 360; |
|
| 88 | + } |
|
| 89 | + if ($lat_odd >= 270) { |
|
| 90 | + $lat_odd = $lat_odd - 360; |
|
| 91 | + } |
|
| 82 | 92 | // check latitude zone |
| 83 | 93 | if ($this->cprNL($lat_even) == $this->cprNL($lat_odd)) { |
| 84 | 94 | if ($this::$latlon[$icao]['created'] > time()) { |
@@ -86,7 +96,9 @@ discard block |
||
| 86 | 96 | $m = floor($cprlon_even*($this->cprNL($lat_even)-1) - $cprlon_odd * $this->cprNL($lat_even)+0.5); |
| 87 | 97 | $lon = (360.0/$ni)*($m%$ni+$cprlon_even); |
| 88 | 98 | $lat = $lat_even; |
| 89 | - if ($lon > 180) $lon = $lon -360; |
|
| 99 | + if ($lon > 180) { |
|
| 100 | + $lon = $lon -360; |
|
| 101 | + } |
|
| 90 | 102 | if ($lat > -91 && $lat < 91 && $lon > -181 && $lon < 181) { |
| 91 | 103 | //if ($globalDebug) echo 'cs : '.$cs.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon; |
| 92 | 104 | $data['latitude'] = $lat; |
@@ -97,14 +109,18 @@ discard block |
||
| 97 | 109 | $m = floor($cprlon_even*($this->cprNL($lat_odd)-1) - $cprlon_odd * $this->cprNL($lat_odd)+0.5); |
| 98 | 110 | $lon = (360.0/$ni)*($m%$ni+$cprlon_odd); |
| 99 | 111 | $lat = $lat_odd; |
| 100 | - if ($lon > 180) $lon = $lon -360; |
|
| 112 | + if ($lon > 180) { |
|
| 113 | + $lon = $lon -360; |
|
| 114 | + } |
|
| 101 | 115 | if ($lat > -91 && $lat < 91 && $lon > -181 && $lon < 181) { |
| 102 | 116 | //if ($globalDebug) echo 'icao : '.$icao.' - hex : '.$hex.' - lat : '.$lat.' - lon : '.$lon.' second'."\n"; |
| 103 | 117 | $data['latitude'] = $lat; |
| 104 | 118 | $data['longitude'] = $lon; |
| 105 | 119 | } |
| 106 | 120 | } |
| 107 | - } else echo "Not cprNL"; |
|
| 121 | + } else { |
|
| 122 | + echo "Not cprNL"; |
|
| 123 | + } |
|
| 108 | 124 | unset($this::$latlon[$icao]); |
| 109 | 125 | } |
| 110 | 126 | } elseif ($tc == 19) { |
@@ -113,11 +129,17 @@ discard block |
||
| 113 | 129 | $v_ew = intval(substr($bin,46,10),2); |
| 114 | 130 | $v_ns_dir = intval(substr($bin,56,1)); |
| 115 | 131 | $v_ns = intval(substr($bin,57,10),2); |
| 116 | - if ($v_ew_dir) $v_ew = -1*$v_ew; |
|
| 117 | - if ($v_ns_dir) $v_ns = -1*$v_ns; |
|
| 132 | + if ($v_ew_dir) { |
|
| 133 | + $v_ew = -1*$v_ew; |
|
| 134 | + } |
|
| 135 | + if ($v_ns_dir) { |
|
| 136 | + $v_ns = -1*$v_ns; |
|
| 137 | + } |
|
| 118 | 138 | $speed = sqrt($v_ns*$v_ns+$v_ew*$v_ew); |
| 119 | 139 | $heading = atan2($v_ew,$v_ns)*360.0/(2*pi()); |
| 120 | - if ($heading <0) $heading = $heading+360; |
|
| 140 | + if ($heading <0) { |
|
| 141 | + $heading = $heading+360; |
|
| 142 | + } |
|
| 121 | 143 | $data['speed'] = $speed; |
| 122 | 144 | $data['heading'] = $heading; |
| 123 | 145 | } |
@@ -132,72 +154,194 @@ discard block |
||
| 132 | 154 | * Lookup table to convert the latitude to index. |
| 133 | 155 | */ |
| 134 | 156 | private function cprNL($lat) { |
| 135 | - if ($lat < 0) $lat = -$lat; // Table is simmetric about the equator. |
|
| 136 | - if ($lat < 10.47047130) return 59; |
|
| 137 | - if ($lat < 14.82817437) return 58; |
|
| 138 | - if ($lat < 18.18626357) return 57; |
|
| 139 | - if ($lat < 21.02939493) return 56; |
|
| 140 | - if ($lat < 23.54504487) return 55; |
|
| 141 | - if ($lat < 25.82924707) return 54; |
|
| 142 | - if ($lat < 27.93898710) return 53; |
|
| 143 | - if ($lat < 29.91135686) return 52; |
|
| 144 | - if ($lat < 31.77209708) return 51; |
|
| 145 | - if ($lat < 33.53993436) return 50; |
|
| 146 | - if ($lat < 35.22899598) return 49; |
|
| 147 | - if ($lat < 36.85025108) return 48; |
|
| 148 | - if ($lat < 38.41241892) return 47; |
|
| 149 | - if ($lat < 39.92256684) return 46; |
|
| 150 | - if ($lat < 41.38651832) return 45; |
|
| 151 | - if ($lat < 42.80914012) return 44; |
|
| 152 | - if ($lat < 44.19454951) return 43; |
|
| 153 | - if ($lat < 45.54626723) return 42; |
|
| 154 | - if ($lat < 46.86733252) return 41; |
|
| 155 | - if ($lat < 48.16039128) return 40; |
|
| 156 | - if ($lat < 49.42776439) return 39; |
|
| 157 | - if ($lat < 50.67150166) return 38; |
|
| 158 | - if ($lat < 51.89342469) return 37; |
|
| 159 | - if ($lat < 53.09516153) return 36; |
|
| 160 | - if ($lat < 54.27817472) return 35; |
|
| 161 | - if ($lat < 55.44378444) return 34; |
|
| 162 | - if ($lat < 56.59318756) return 33; |
|
| 163 | - if ($lat < 57.72747354) return 32; |
|
| 164 | - if ($lat < 58.84763776) return 31; |
|
| 165 | - if ($lat < 59.95459277) return 30; |
|
| 166 | - if ($lat < 61.04917774) return 29; |
|
| 167 | - if ($lat < 62.13216659) return 28; |
|
| 168 | - if ($lat < 63.20427479) return 27; |
|
| 169 | - if ($lat < 64.26616523) return 26; |
|
| 170 | - if ($lat < 65.31845310) return 25; |
|
| 171 | - if ($lat < 66.36171008) return 24; |
|
| 172 | - if ($lat < 67.39646774) return 23; |
|
| 173 | - if ($lat < 68.42322022) return 22; |
|
| 174 | - if ($lat < 69.44242631) return 21; |
|
| 175 | - if ($lat < 70.45451075) return 20; |
|
| 176 | - if ($lat < 71.45986473) return 19; |
|
| 177 | - if ($lat < 72.45884545) return 18; |
|
| 178 | - if ($lat < 73.45177442) return 17; |
|
| 179 | - if ($lat < 74.43893416) return 16; |
|
| 180 | - if ($lat < 75.42056257) return 15; |
|
| 181 | - if ($lat < 76.39684391) return 14; |
|
| 182 | - if ($lat < 77.36789461) return 13; |
|
| 183 | - if ($lat < 78.33374083) return 12; |
|
| 184 | - if ($lat < 79.29428225) return 11; |
|
| 185 | - if ($lat < 80.24923213) return 10; |
|
| 186 | - if ($lat < 81.19801349) return 9; |
|
| 187 | - if ($lat < 82.13956981) return 8; |
|
| 188 | - if ($lat < 83.07199445) return 7; |
|
| 189 | - if ($lat < 83.99173563) return 6; |
|
| 190 | - if ($lat < 84.89166191) return 5; |
|
| 191 | - if ($lat < 85.75541621) return 4; |
|
| 192 | - if ($lat < 86.53536998) return 3; |
|
| 193 | - if ($lat < 87.00000000) return 2; |
|
| 157 | + if ($lat < 0) { |
|
| 158 | + $lat = -$lat; |
|
| 159 | + } |
|
| 160 | + // Table is simmetric about the equator. |
|
| 161 | + if ($lat < 10.47047130) { |
|
| 162 | + return 59; |
|
| 163 | + } |
|
| 164 | + if ($lat < 14.82817437) { |
|
| 165 | + return 58; |
|
| 166 | + } |
|
| 167 | + if ($lat < 18.18626357) { |
|
| 168 | + return 57; |
|
| 169 | + } |
|
| 170 | + if ($lat < 21.02939493) { |
|
| 171 | + return 56; |
|
| 172 | + } |
|
| 173 | + if ($lat < 23.54504487) { |
|
| 174 | + return 55; |
|
| 175 | + } |
|
| 176 | + if ($lat < 25.82924707) { |
|
| 177 | + return 54; |
|
| 178 | + } |
|
| 179 | + if ($lat < 27.93898710) { |
|
| 180 | + return 53; |
|
| 181 | + } |
|
| 182 | + if ($lat < 29.91135686) { |
|
| 183 | + return 52; |
|
| 184 | + } |
|
| 185 | + if ($lat < 31.77209708) { |
|
| 186 | + return 51; |
|
| 187 | + } |
|
| 188 | + if ($lat < 33.53993436) { |
|
| 189 | + return 50; |
|
| 190 | + } |
|
| 191 | + if ($lat < 35.22899598) { |
|
| 192 | + return 49; |
|
| 193 | + } |
|
| 194 | + if ($lat < 36.85025108) { |
|
| 195 | + return 48; |
|
| 196 | + } |
|
| 197 | + if ($lat < 38.41241892) { |
|
| 198 | + return 47; |
|
| 199 | + } |
|
| 200 | + if ($lat < 39.92256684) { |
|
| 201 | + return 46; |
|
| 202 | + } |
|
| 203 | + if ($lat < 41.38651832) { |
|
| 204 | + return 45; |
|
| 205 | + } |
|
| 206 | + if ($lat < 42.80914012) { |
|
| 207 | + return 44; |
|
| 208 | + } |
|
| 209 | + if ($lat < 44.19454951) { |
|
| 210 | + return 43; |
|
| 211 | + } |
|
| 212 | + if ($lat < 45.54626723) { |
|
| 213 | + return 42; |
|
| 214 | + } |
|
| 215 | + if ($lat < 46.86733252) { |
|
| 216 | + return 41; |
|
| 217 | + } |
|
| 218 | + if ($lat < 48.16039128) { |
|
| 219 | + return 40; |
|
| 220 | + } |
|
| 221 | + if ($lat < 49.42776439) { |
|
| 222 | + return 39; |
|
| 223 | + } |
|
| 224 | + if ($lat < 50.67150166) { |
|
| 225 | + return 38; |
|
| 226 | + } |
|
| 227 | + if ($lat < 51.89342469) { |
|
| 228 | + return 37; |
|
| 229 | + } |
|
| 230 | + if ($lat < 53.09516153) { |
|
| 231 | + return 36; |
|
| 232 | + } |
|
| 233 | + if ($lat < 54.27817472) { |
|
| 234 | + return 35; |
|
| 235 | + } |
|
| 236 | + if ($lat < 55.44378444) { |
|
| 237 | + return 34; |
|
| 238 | + } |
|
| 239 | + if ($lat < 56.59318756) { |
|
| 240 | + return 33; |
|
| 241 | + } |
|
| 242 | + if ($lat < 57.72747354) { |
|
| 243 | + return 32; |
|
| 244 | + } |
|
| 245 | + if ($lat < 58.84763776) { |
|
| 246 | + return 31; |
|
| 247 | + } |
|
| 248 | + if ($lat < 59.95459277) { |
|
| 249 | + return 30; |
|
| 250 | + } |
|
| 251 | + if ($lat < 61.04917774) { |
|
| 252 | + return 29; |
|
| 253 | + } |
|
| 254 | + if ($lat < 62.13216659) { |
|
| 255 | + return 28; |
|
| 256 | + } |
|
| 257 | + if ($lat < 63.20427479) { |
|
| 258 | + return 27; |
|
| 259 | + } |
|
| 260 | + if ($lat < 64.26616523) { |
|
| 261 | + return 26; |
|
| 262 | + } |
|
| 263 | + if ($lat < 65.31845310) { |
|
| 264 | + return 25; |
|
| 265 | + } |
|
| 266 | + if ($lat < 66.36171008) { |
|
| 267 | + return 24; |
|
| 268 | + } |
|
| 269 | + if ($lat < 67.39646774) { |
|
| 270 | + return 23; |
|
| 271 | + } |
|
| 272 | + if ($lat < 68.42322022) { |
|
| 273 | + return 22; |
|
| 274 | + } |
|
| 275 | + if ($lat < 69.44242631) { |
|
| 276 | + return 21; |
|
| 277 | + } |
|
| 278 | + if ($lat < 70.45451075) { |
|
| 279 | + return 20; |
|
| 280 | + } |
|
| 281 | + if ($lat < 71.45986473) { |
|
| 282 | + return 19; |
|
| 283 | + } |
|
| 284 | + if ($lat < 72.45884545) { |
|
| 285 | + return 18; |
|
| 286 | + } |
|
| 287 | + if ($lat < 73.45177442) { |
|
| 288 | + return 17; |
|
| 289 | + } |
|
| 290 | + if ($lat < 74.43893416) { |
|
| 291 | + return 16; |
|
| 292 | + } |
|
| 293 | + if ($lat < 75.42056257) { |
|
| 294 | + return 15; |
|
| 295 | + } |
|
| 296 | + if ($lat < 76.39684391) { |
|
| 297 | + return 14; |
|
| 298 | + } |
|
| 299 | + if ($lat < 77.36789461) { |
|
| 300 | + return 13; |
|
| 301 | + } |
|
| 302 | + if ($lat < 78.33374083) { |
|
| 303 | + return 12; |
|
| 304 | + } |
|
| 305 | + if ($lat < 79.29428225) { |
|
| 306 | + return 11; |
|
| 307 | + } |
|
| 308 | + if ($lat < 80.24923213) { |
|
| 309 | + return 10; |
|
| 310 | + } |
|
| 311 | + if ($lat < 81.19801349) { |
|
| 312 | + return 9; |
|
| 313 | + } |
|
| 314 | + if ($lat < 82.13956981) { |
|
| 315 | + return 8; |
|
| 316 | + } |
|
| 317 | + if ($lat < 83.07199445) { |
|
| 318 | + return 7; |
|
| 319 | + } |
|
| 320 | + if ($lat < 83.99173563) { |
|
| 321 | + return 6; |
|
| 322 | + } |
|
| 323 | + if ($lat < 84.89166191) { |
|
| 324 | + return 5; |
|
| 325 | + } |
|
| 326 | + if ($lat < 85.75541621) { |
|
| 327 | + return 4; |
|
| 328 | + } |
|
| 329 | + if ($lat < 86.53536998) { |
|
| 330 | + return 3; |
|
| 331 | + } |
|
| 332 | + if ($lat < 87.00000000) { |
|
| 333 | + return 2; |
|
| 334 | + } |
|
| 194 | 335 | return 1; |
| 195 | 336 | } |
| 196 | 337 | |
| 197 | 338 | private function cprN($lat,$isodd) { |
| 198 | 339 | $nl = $this->cprNL($lat) - $isodd; |
| 199 | - if ($nl > 1) return $nl; |
|
| 200 | - else return 1; |
|
| 340 | + if ($nl > 1) { |
|
| 341 | + return $nl; |
|
| 342 | + } else { |
|
| 343 | + return 1; |
|
| 344 | + } |
|
| 201 | 345 | } |
| 202 | 346 | |
| 203 | 347 | private function parityCheck($msg, $bin) { |
@@ -220,10 +364,13 @@ discard block |
||
| 220 | 364 | $crc = 0; |
| 221 | 365 | $checksum = intval(substr($msg,22,6),16); |
| 222 | 366 | for ($j = 0; $j < strlen($bin); $j++) { |
| 223 | - if ($bin[$j]) $crc = $crc^intval($modes_checksum_table[$j],0); |
|
| 367 | + if ($bin[$j]) { |
|
| 368 | + $crc = $crc^intval($modes_checksum_table[$j],0); |
|
| 369 | + } |
|
| 224 | 370 | } |
| 225 | - if ($crc == $checksum) return true; |
|
| 226 | - else { |
|
| 371 | + if ($crc == $checksum) { |
|
| 372 | + return true; |
|
| 373 | + } else { |
|
| 227 | 374 | //echo "**** CRC ERROR ****\n"; |
| 228 | 375 | return false; |
| 229 | 376 | } |
@@ -273,22 +420,37 @@ discard block |
||
| 273 | 420 | $msg['date_log'] = date('Y/m/d',$data['timestamp']); |
| 274 | 421 | $msg['time_log'] = date('H:i:s',$data['timestamp']).'.180'; |
| 275 | 422 | $msg['callsign'] = ''; |
| 276 | - if (isset($data['altitude'])) $msg['altitude'] = $data['altitude']; |
|
| 277 | - else $msg['altitude'] = ''; |
|
| 423 | + if (isset($data['altitude'])) { |
|
| 424 | + $msg['altitude'] = $data['altitude']; |
|
| 425 | + } else { |
|
| 426 | + $msg['altitude'] = ''; |
|
| 427 | + } |
|
| 278 | 428 | $msg['speed'] = $data['speed']; |
| 279 | - if (isset($data['heading'])) $msg['track'] = $data['heading']; |
|
| 280 | - else $msg['track'] = ''; |
|
| 429 | + if (isset($data['heading'])) { |
|
| 430 | + $msg['track'] = $data['heading']; |
|
| 431 | + } else { |
|
| 432 | + $msg['track'] = ''; |
|
| 433 | + } |
|
| 281 | 434 | $msg['latitude'] = $data['latitude']; |
| 282 | 435 | $msg['longitude'] = $data['longitude']; |
| 283 | - if (isset($data['verticalrate'])) $msg['verticalrate'] = $data['verticalrate']; |
|
| 284 | - else $msg['verticalrate'] = ''; |
|
| 285 | - if (isset($data['squawk'])) $msg['squawk'] = $data['squawk']; |
|
| 286 | - else $msg['squawk'] = 0; |
|
| 436 | + if (isset($data['verticalrate'])) { |
|
| 437 | + $msg['verticalrate'] = $data['verticalrate']; |
|
| 438 | + } else { |
|
| 439 | + $msg['verticalrate'] = ''; |
|
| 440 | + } |
|
| 441 | + if (isset($data['squawk'])) { |
|
| 442 | + $msg['squawk'] = $data['squawk']; |
|
| 443 | + } else { |
|
| 444 | + $msg['squawk'] = 0; |
|
| 445 | + } |
|
| 287 | 446 | $msg['alert'] = 0; |
| 288 | 447 | $msg['emergency'] = 0; |
| 289 | 448 | $msg['SPI'] = 0; |
| 290 | - if (isset($data['ground'])) $msg['ground'] = 1; |
|
| 291 | - else $msg['ground'] = 0; |
|
| 449 | + if (isset($data['ground'])) { |
|
| 450 | + $msg['ground'] = 1; |
|
| 451 | + } else { |
|
| 452 | + $msg['ground'] = 0; |
|
| 453 | + } |
|
| 292 | 454 | $result[] = implode(',',$msg); |
| 293 | 455 | } |
| 294 | 456 | return $result; |
