/**
* Returns the boundaries of an array of LatLng objects
* @param LatLng[] $coords
* @param float $margin
* @return LatLngBounds
* @throws \yii\base\InvalidParamException
*/
public static function getBoundsOfCoordinates($coords, $margin = 0.0)
{
$minLat = 1000;
$maxLat = -1000;
$minLng = 1000;
$maxLng = -1000;
foreach ($coords as $coord) {
if (!$coord instanceof LatLng) {
throw new InvalidParamException('$coords must be an array of "' . LatLng::className() . '" objects');
}
/* @var $coord LatLng */
$minLat = min($minLat, $coord->getLat());
$maxLat = max($maxLat, $coord->getLat());
$minLng = min($minLng, $coord->getLng());
$maxLng = max($maxLng, $coord->getLng());
}
if ($margin > 0) {
$minLat = $minLat - $margin * ($maxLat - $minLat);
$minLng = $minLng - $margin * ($maxLng - $minLng);
$maxLat = $maxLat + $margin * ($maxLat - $minLat);
$maxLng = $maxLng + $margin * ($maxLng - $minLng);
}
return new self(['southWest' => new LatLng(['lat' => $minLat, 'lng' => $minLng]), 'northEast' => new LatLng(['lat' => $maxLat, 'lng' => $maxLng])]);
}
