public function test_bounding_box_for_radius()
{
// Helsinki-Malmi airport (EFHF)
$efhf = new midgardmvc_helper_location_spot(60.254558, 25.042828);
// Get 20km bounding box
$bbox = midgardmvc_helper_location_utils::get_bounding_box_for_radius($efhf, 20);
$this->assertTrue(is_array($bbox));
$this->assertEquals(count($bbox), 2);
// Ensure the box limits are in right directions
$this->assertEquals(midgardmvc_helper_location_utils::get_bearing($efhf, $bbox[0]), 'SW');
$this->assertEquals(midgardmvc_helper_location_utils::get_bearing($efhf, $bbox[1]), 'NE');
// Check that the distance to a corner is correct.
// Note: using 2D trigonometry on 3D globe so numbers are not exact
$distance1 = midgardmvc_helper_location_utils::get_distance($bbox[0], $efhf);
$this->assertEquals(round($distance1), round(sqrt(pow(20, 2) + pow(20, 2))));
}
/**
* Pretty print a position mapping Microformatted city name or other label
*
* @return string
*/
static function microformat_location(midgardmvc_helper_location_spot $spot)
{
$closest = midgardmvc_helper_location_utils::get_closest('midgardmvc_helper_location_city', $spot, 1);
$latitude_string = midgardmvc_helper_location_utils::pretty_print_coordinate($spot->latitude);
$latitude_string .= $spot->latitude > 0 ? ' N' : ' S';
$longitude_string = midgardmvc_helper_location_utils::pretty_print_coordinate($spot->longitude);
$longitude_string .= $spot->longitude > 0 ? ' E' : ' W';
if (count($closest) == 0) {
// No city found, generate only geo microformat
$coordinates_string = "<span class=\"geo\">";
$coordinates_string .= "<abbr class=\"latitude\" title=\"{$spot->latitude}\">{$latitude_string}</abbr> ";
$coordinates_string .= "<abbr class=\"longitude\" title=\"{$spot->longitude}\">{$longitude_string}</abbr>";
$coordinates_string .= "</span>";
return $coordinates_string;
}
foreach ($closest as $city) {
// City found, combine it and geo
$city_string = "<span class=\"geo adr\">";
$city_string .= "<abbr class=\"latitude\" title=\"{$spot->latitude}\">{$latitude_string}</abbr> ";
$city_string .= "<abbr class=\"longitude\" title=\"{$spot->longitude}\">{$longitude_string}</abbr> ";
$city_spot = new midgardmvc_helper_location_spot($city);
$city_distance = round(midgardmvc_helper_location_utils::get_distance($spot, $city_spot));
$city_label = "<span class=\"locality\">{$city->city}</span>, ";
$city_label .= "<span class=\"country-name\">{$city->country}</span>";
if ($city_distance <= 4) {
$city_string .= $city_label;
} else {
$bearing = midgardmvc_helper_location_utils::get_bearing($city_spot, $spot);
$city_string .= sprintf(midgardmvc_core::get_instance()->i18n->get_string('%skm %s of %s', 'midgardmvc_helper_location'), $city_distance, $bearing, $city_label);
}
$city_string .= "</span>";
}
return $city_string;
}
