/**
* Calculate the bounds corresponding to a specific center and zoom level for a give map size in pixels
*
* @param GMapCoord $center_coord
* @param integer $zoom
* @param integer $width
* @param integer $height
* @return GMapBounds
* @author fabriceb
* @since Jun 2, 2009 fabriceb
*/
public static function getBoundsFromCenterAndZoom(GMapCoord $center_coord, $zoom, $width, $height = null)
{
if (is_null($height))
{
$height = $width;
}
$center_lat = $center_coord->getLatitude();
$center_lng = $center_coord->getLongitude();
$pix = GMapCoord::fromLatToPix($center_lat, $zoom);
$ne_lat = GMapCoord::fromPixToLat($pix - round(($height-1) / 2), $zoom);
$sw_lat = GMapCoord::fromPixToLat($pix + round(($height-1) / 2), $zoom);
$pix = GMapCoord::fromLngToPix($center_lng, $zoom);
$sw_lng = GMapCoord::fromPixToLng($pix - round(($width-1) / 2), $zoom);
$ne_lng = GMapCoord::fromPixToLng($pix + round(($width-1) / 2), $zoom);
return new GMapBounds(new GMapCoord($sw_lat, $sw_lng), new GMapCoord($ne_lat, $ne_lng));
}
*/
include(dirname(__FILE__).'/../bootstrap/unit.php');
//$app='frontend';
//include(dirname(__FILE__).'/../bootstrap/functional.php');
$lat = 48.856536;
$lng = 2.339307;
$zoom = 11;
$pix = GMapCoord::fromLatToPix($lat, $zoom);
$ne_lat = GMapCoord::fromPixToLat($pix - 150, $zoom);
$sw_lat = GMapCoord::fromPixToLat($pix + 150, $zoom);
$pix = GMapCoord::fromLngToPix($lng, $zoom);
$sw_lng = GMapCoord::fromPixToLng($pix - 150, $zoom);
$ne_lng = GMapCoord::fromPixToLng($pix + 150, $zoom);
$bounds = new GMapBounds(new GMapCoord($sw_lat,$sw_lng),new GMapCoord($ne_lat,$ne_lng));
$t = new lime_test(15, new lime_output_color());
$t->diag('GMapBounds test');
$t->diag('->__toString Test');
$t->is($bounds->__toString(),'((48.7887237041, 2.23631017383), (48.9242565582, 2.44230382617))','On a déduit correctement les bounds à partir de la largeur de la carte, le centre et le zoom');
$t->diag('->getZoom Test');
$bounds_world = GMapBounds::createFromString('((-90, -180), (90, 180))');
