public static function getRouteData()
{
$node_id = $_GET['nid'];
$activity = self::loadActivity($node_id);
module_load_include('inc', 'openfit_api', 'openfit_api.ActivityDataTrack');
// TODO: Store a binary version of this data so it only gets calculated once.
$reader = new ActivityDataTrackReader($activity['activity_id'], 'full');
$data = $reader->readTracks(array(ActivityDataTrackAccess::LOCATION));
$data = isset($data[ActivityDataTrackAccess::LOCATION]) ? $data[ActivityDataTrackAccess::LOCATION] : null;
$route = self::getViewRouteData($activity, $data);
header('Content-type: application/json');
$json = (object) array('nid' => (int) $node_id, 'route' => (object) $route);
die(print_r(json_encode($json), true));
}
private static function exportGpx($activity)
{
$info = $activity->openfit_info;
$filename = str_replace(' ', '_', $info['activity']->activity_start) . '.gpx';
header("Content-Type: text/gpx/force-download");
header("Content-Disposition: attachment; filename={$filename}");
$startTime = new DateTime($info['activity']->activity_start, new DateTimeZone('UTC'));
$reader = new ActivityDataTrackReader($info['activity']->activity_id, 'full');
$data = $reader->readTracks(array(ActivityDataTrackAccess::LOCATION, ActivityDataTrackAccess::ELEVATION));
$lIter = new OpenFitTrackIterator($data[ActivityDataTrackAccess::LOCATION], $startTime);
$eleIter = new OpenFitTrackIterator($data[ActivityDataTrackAccess::ELEVATION], $startTime);
$waypoints = array();
$lastElevation = null;
while ($lIter->valid()) {
$output = array();
$output['pos'] = $lIter->current();
$offset = $lIter->key();
$time = clone $startTime;
$time->add(new DateInterval('PT' . $offset . 'S'));
$lIter->next();
if ($eleIter->valid()) {
//This is messy
$offset = $eleIter->key();
$eleTime = clone $startTime;
$eleTime->add(new DateInterval('PT' . $offset . 'S'));
if ($eleTime == $time) {
$output['ele'] = $eleIter->current();
$lastElevation = $eleIter->current();
$eleIter->next();
} else {
if (isset($lastElevation)) {
$output['ele'] = $lastElevation;
}
}
}
$output['time'] = $time->format("Y-m-d\\TH:i:s\\Z");
$waypoints[] = $output;
}
$out = new XMLWriter();
$out->openURI('php://output');
$out->startDocument('1.0', 'UTF-8');
$out->setIndent(true);
$out->setIndentString(' ');
$out->startElement('gpx');
$out->writeAttribute('xmlns', 'http://www.topografix.com/GPX/1/1');
$out->writeAttribute('xmlns:xsd', 'http://www.w3.org/2001/XMLSchema');
$out->writeAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
$out->writeAttribute('xsi:schemaLocation', 'http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd');
$out->writeAttribute('version', '1.1');
$out->writeAttribute('creator', 'OpenFitApi');
$out->startElement('trk');
$out->writeElement("name", $info['activity']->title);
if (!empty($info['activity']->activity_notes)) {
$out->writeElement('cmt', $info['activity']->activity_notes);
}
$out->writeElement('number', 0);
$out->writeElement('type', $info['activity']->category_name);
$out->startElement('trkseg');
foreach ($waypoints as $point) {
$out->startElement('trkpt');
$out->writeAttribute('lat', $point['pos'][1]);
$out->writeAttribute('lon', $point['pos'][2]);
if (isset($point['ele'])) {
$out->writeElement('ele', $point['ele']);
}
$out->writeElement('time', $point['time']);
$out->endElement();
}
$out->endElement();
$out->endElement();
$out->endElement();
$out->endDocument();
$out->flush();
}
