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serialized-to-gpx.php
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serialized-to-gpx.php
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<?php
//enter location of KML file here
//$u = "http://code.google.com/apis/kml/documentation/KML_Samples.kml";
function utcdate($timest) {
return gmdate("Y-m-d\Th:i:s\Z", $timest);
}
function s2g($inFile, &$outString) {
$u = $inFile;
$u_parts = pathinfo($u); //array of url parts
$u_ext = strtoupper($u_parts['extension']);
if ($u_ext== "LOG") {
//$dom_kml = new DOMDocument();
//$dom_kml->load($u);
$strings = file($u, FILE_IGNORE_NEW_LINES);
$info = unserialize(end($strings));
$dom_gpx = new DOMDocument('1.0', 'UTF-8');
$dom_gpx->formatOutput = true;
//root node
$gpx = $dom_gpx->createElement('gpx');
$gpx = $dom_gpx->appendChild($gpx);
$gpx_version = $dom_gpx->createAttribute('version');
$gpx->appendChild($gpx_version);
$gpx_version_text = $dom_gpx->createTextNode('1.0');
$gpx_version->appendChild($gpx_version_text);
$gpx_creator = $dom_gpx->createAttribute('creator');
$gpx->appendChild($gpx_creator);
$gpx_creator_text = $dom_gpx->createTextNode('OsmAnd-Tracker');
$gpx_creator->appendChild($gpx_creator_text);
$gpx_xmlns_xsi = $dom_gpx->createAttribute('xmlns:xsi');
$gpx->appendChild($gpx_xmlns_xsi);
$gpx_xmlns_xsi_text = $dom_gpx->createTextNode('http://www.w3.org/2001/XMLSchema-instance');
$gpx_xmlns_xsi->appendChild($gpx_xmlns_xsi_text);
$gpx_xmlns = $dom_gpx->createAttribute('xmlns');
$gpx->appendChild($gpx_xmlns);
$gpx_xmlns_text = $dom_gpx->createTextNode('http://www.topografix.com/GPX/1/0');
$gpx_xmlns->appendChild($gpx_xmlns_text);
$gpx_xsi_schemaLocation = $dom_gpx->createAttribute('xsi:schemaLocation');
$gpx->appendChild($gpx_xsi_schemaLocation);
$gpx_xsi_schemaLocation_text = $dom_gpx->createTextNode('http://www.topografix.com/GPX/1/0 http://www.topografix.com/GPX/1/0/gpx.xsd');
$gpx_xsi_schemaLocation->appendChild($gpx_xsi_schemaLocation_text);
$gpx_url = $dom_gpx->createElement('url');
$gpx_url = $gpx->appendChild($gpx_url);
$gpx_url_text = $dom_gpx->createTextNode('https://github.com/alejandroscf/OsmAnd-Tracker');
$gpx_url->appendChild($gpx_url_text);
//add the new track
$gpx_trk = $dom_gpx->createElement('trk');
$gpx_trk = $gpx->appendChild($gpx_trk);
/*$gpx_name = $dom_gpx->createElement('name');
$gpx_name = $gpx_trk->appendChild($gpx_name);
$gpx_name_text = $dom_gpx->createTextNode("track");
$gpx_name->appendChild($gpx_name_text);
*/
$gpx_trkseg = $dom_gpx->createElement('trkseg');
$gpx_trkseg = $gpx_trk->appendChild($gpx_trkseg);
foreach ($strings as $point) {
//$latlng = explode(",", $coordinate);
$info = unserialize($point);
if (($lat = $info['lat']) && ($lng = $info['lon'])) {
$gpx_trkpt = $dom_gpx->createElement('trkpt');
$gpx_trkpt = $gpx_trkseg->appendChild($gpx_trkpt);
$gpx_ele = $dom_gpx->createElement('ele');
$gpx_ele = $gpx_trkpt->appendChild($gpx_ele);
$gpx_ele_text = $dom_gpx->createTextNode($info['altitude']);
$gpx_ele->appendChild($gpx_ele_text);
$gpx_time = $dom_gpx->createElement('time');
$gpx_time = $gpx_trkpt->appendChild($gpx_time);
$gpx_time_text = $dom_gpx->createTextNode(utcdate(round($info['timestamp']/1000,0)));
$gpx_time->appendChild($gpx_time_text);
$gpx_speed = $dom_gpx->createElement('speed');
$gpx_speed = $gpx_trkpt->appendChild($gpx_speed);
$gpx_speed_text = $dom_gpx->createTextNode($info['speed']);
$gpx_speed->appendChild($gpx_speed_text);
$gpx_hdop = $dom_gpx->createElement('hdop');
$gpx_hdop = $gpx_trkpt->appendChild($gpx_hdop);
$gpx_hdop_text = $dom_gpx->createTextNode($info['hdop']);
$gpx_hdop->appendChild($gpx_hdop_text);
$gpx_trkpt_lat = $dom_gpx->createAttribute('lat');
$gpx_trkpt->appendChild($gpx_trkpt_lat);
$gpx_trkpt_lat_text = $dom_gpx->createTextNode($lat);
$gpx_trkpt_lat->appendChild($gpx_trkpt_lat_text);
$gpx_trkpt_lon = $dom_gpx->createAttribute('lon');
$gpx_trkpt->appendChild($gpx_trkpt_lon);
$gpx_trkpt_lon_text = $dom_gpx->createTextNode($lng);
$gpx_trkpt_lon->appendChild($gpx_trkpt_lon_text);
}
}
$outString = $dom_gpx->saveXML();
// echo $outString;
}
}
?>