/**
* Get distance between to positions in kilometers
*
* Code from http://www.corecoding.com/getfile.php?file=25
*/
static function get_distance(midgardmvc_helper_location_spot $from, midgardmvc_helper_location_spot $to, $unit = 'K', $round = true)
{
return $from->distance_to($to, $unit, $round);
}
public function test_distance()
{
// Helsinki-Malmi airport (EFHF)
$efhf = new midgardmvc_helper_location_spot(60.254558, 25.042828);
// Helsinki-Vantaa airport (EFHK)
$efhk = new midgardmvc_helper_location_spot(60.317222, 24.963333);
// Midgard airport (FYMG)
$fymg = new midgardmvc_helper_location_spot(-22.083332, 17.366667);
// There are 8.2 kilometers between the airports
$distance = $efhf->distance_to($efhk);
$this->assertEquals($distance, 8.199999999999999);
// 8.2 kilometers is approximately 4.4 nautical miles
$distance_nautical = $efhf->distance_to($efhk, 'N');
$this->assertEquals($distance_nautical, 4.4);
// There are 9181.6 kilometers from Helsinki to Midgard
$distance_large = $efhf->distance_to($fymg);
$this->assertEquals($distance_large, 9181.6);
$distance_large = $efhf->distance_to($fymg, 'N');
$this->assertEquals($distance_large, 4954.4);
}
