/**
* Looks up the geo coordinates of the address of an object and sets its
* geo coordinates.
*
* @param tx_oelib_Interface_Geo $geoObject
* the object for which the geo coordinates will be looked up and set
*
* @return void
*/
public function lookUp(tx_oelib_Interface_Geo $geoObject)
{
if ($geoObject->hasGeoError() || $geoObject->hasGeoCoordinates()) {
return;
}
if (!$geoObject->hasGeoAddress()) {
$geoObject->setGeoError();
return;
}
if (!empty($this->coordinates)) {
$geoObject->setGeoCoordinates($this->coordinates);
} else {
$geoObject->setGeoError();
}
}
/**
* Calculates the great-circle distance in kilometers between two geo
* objects using the haversine formula.
*
* @param tx_oelib_Interface_Geo $object1
* the first object, must have geo coordinates
* @param tx_oelib_Interface_Geo $object2
* the second object, must have geo coordinates
*
* @return float the distance between $object1 and $object2 in kilometers, will be >= 0.0
*
* @throws InvalidArgumentException
*/
public function calculateDistanceInKilometers(tx_oelib_Interface_Geo $object1, tx_oelib_Interface_Geo $object2)
{
if ($object1->hasGeoError()) {
throw new InvalidArgumentException('$object1 has a geo error.');
}
if ($object2->hasGeoError()) {
throw new InvalidArgumentException('$object2 has a geo error.');
}
if (!$object1->hasGeoCoordinates()) {
throw new InvalidArgumentException('$object1 needs to have coordinates, but has none.');
}
if (!$object2->hasGeoCoordinates()) {
throw new InvalidArgumentException('$object2 needs to have coordinates, but has none.');
}
$coordinates1 = $object1->getGeoCoordinates();
$latitude1 = deg2rad($coordinates1['latitude']);
$longitude1 = deg2rad($coordinates1['longitude']);
$coordinates2 = $object2->getGeoCoordinates();
$latitude2 = deg2rad($coordinates2['latitude']);
$longitude2 = deg2rad($coordinates2['longitude']);
return acos(sin($latitude1) * sin($latitude2) + cos($latitude1) * cos($latitude2) * cos($longitude2 - $longitude1)) * self::EARTH_RADIUS_IN_KILOMETERS;
}
/**
* Looks up the geo coordinates of the address of an object and sets its
* geo coordinates.
*
* @param tx_oelib_Interface_Geo $geoObject
* the object for which the geo coordinates will be looked up and set
*
* @return void
*/
public function lookUp(tx_oelib_Interface_Geo $geoObject)
{
if ($geoObject->hasGeoError() || $geoObject->hasGeoCoordinates()) {
return;
}
if (!$geoObject->hasGeoAddress()) {
$geoObject->setGeoError();
return;
}
$address = $geoObject->getGeoAddress();
$this->throttle();
$rawResult = $this->sendRequest($address);
if ($rawResult === FALSE) {
throw new RuntimeException('There was an error connecting to the Google geocoding server.', 1331488446);
}
$resultParts = json_decode($rawResult, TRUE);
$status = $resultParts['status'];
if ($status === self::STATUS_OK) {
$coordinates = $resultParts['results'][0]['geometry']['location'];
$geoObject->setGeoCoordinates(array('latitude' => (double) $coordinates['lat'], 'longitude' => (double) $coordinates['lng']));
} else {
$geoObject->setGeoError();
}
}
