/**
* @param SimpleXMLElement $xml
* @return Point
* @throws InvalidGPXException
*/
public static function fromXML(SimpleXMLElement $xml)
{
$attributes = $xml->attributes();
if (!($latitude = $attributes['lat'])) {
throw new InvalidGPXException("No latitude specified on point node.");
}
if (!($longitude = $attributes['lon'])) {
throw new InvalidGPXException("No longitude specified on point node.");
}
$point = new Point((double) $latitude, (double) $longitude);
if (!empty($xml->ele)) {
$point->setElevation((double) $xml->ele[0]);
}
if (!empty($xml->time)) {
$point->setTime(strtotime((string) $xml->time[0]));
}
return $point;
}
protected function parseTrackpoint(\SimpleXMLElement $trackpointNode)
{
// Skip the point if lat/lng not found
if (!isset($trackpointNode->Position->LatitudeDegrees) || !isset($trackpointNode->Position->LongitudeDegrees)) {
return;
}
$point = new Point();
$point->setAltitude((double) $trackpointNode->AltitudeMeters);
$point->setDistance((double) $trackpointNode->DistanceMeters);
$point->setLatitude((double) $trackpointNode->Position->LatitudeDegrees);
$point->setLongitude((double) $trackpointNode->Position->LongitudeDegrees);
$point->setTime(new \DateTime($trackpointNode->Time));
if (isset($trackpointNode->HeartRateBpm->Value)) {
$point->setHeartRate((int) $trackpointNode->HeartRateBpm->Value);
}
if (isset($trackpointNode->Extensions->TPX->Speed)) {
$point->setSpeed($this->convertSpeed((double) $trackpointNode->Extensions->TPX->Speed));
} else {
// TODO If no speed is set, we can calculate it from the point before.
}
return $point;
}