/**
* @param SimpleXMLElement $xml
* @return Waypoint
* @throws InvalidGPXException
*/
public static function fromXML(SimpleXMLElement $xml)
{
$attributes = $xml->attributes();
if (!($latitude = $attributes['lat'])) {
throw new InvalidGPXException("No latitude specified on waypoint node.");
}
if (!($longitude = $attributes['lon'])) {
throw new InvalidGPXException("No longitude specified on waypoint node.");
}
$waypoint = new Waypoint((double) $latitude, (double) $longitude);
if (!empty($xml->ele)) {
$waypoint->setElevation((double) $xml->ele[0]);
}
if (!empty($xml->time)) {
$waypoint->setTime(strtotime((string) $xml->time[0]));
}
if (!empty($xml->magvar)) {
$waypoint->setMagvar((double) $xml->magvar[0]);
}
if (!empty($xml->geoidheight)) {
$waypoint->setGeoidheight((double) $xml->geoidheight[0]);
}
if (!empty($xml->name)) {
$waypoint->setName((string) $xml->name[0]);
}
if (!empty($xml->cmt)) {
$waypoint->setComment((string) $xml->cmt[0]);
}
if (!empty($xml->desc)) {
$waypoint->setDescription((string) $xml->desc[0]);
}
if (!empty($xml->src)) {
$waypoint->setSource((string) $xml->src[0]);
}
if (!empty($xml->link)) {
$links = [];
foreach ($xml->link as $link) {
array_push($links, Link::fromXML($link));
}
$waypoint->setLinks($links);
}
if (!empty($xml->sym)) {
$waypoint->setSymbol((string) $xml->sym[0]);
}
if (!empty($xml->type)) {
$waypoint->setType((string) $xml->type[0]);
}
if (!empty($xml->fix)) {
$waypoint->setFix((string) $xml->fix[0]);
}
if (!empty($xml->sat)) {
$waypoint->setFix((int) $xml->sat[0]);
}
if (!empty($xml->hdop)) {
$waypoint->setHdop((double) $xml->hdop[0]);
}
if (!empty($xml->vdop)) {
$waypoint->setVdop((double) $xml->vdop[0]);
}
if (!empty($xml->pdop)) {
$waypoint->setPdop((double) $xml->pdop[0]);
}
if (!empty($xml->ageofdgpsdata)) {
$waypoint->setAgeofdgpsdata((double) $xml->ageofdgpsdata[0]);
}
if (!empty($xml->dgpsid)) {
$waypoint->setDgpsid((int) $xml->dgpsid[0]);
}
if (!empty($xml->extensions)) {
$waypoint->setExtensions(Extensions::fromXML($xml->extensions[0]));
}
return $waypoint;
}
