public function testB()
{
$lat = 55.613855;
$lng = 37.978578;
$loc = \S2\S2LatLng::fromDegrees(55.6141284375, 37.9788514375);
$s2ll = \S2\S2CellId::fromToken(self::guidToToken('700c7c5346a246ee88eee70b200d0b33.16'))->toLatLng();
$this->assertEquals('(-0.023004811178492, -3.06557268979)', (string) $s2ll);
$s2ll = \S2\S2CellId::fromToken(self::guidToToken('414ab9b68fd0000000082a7300000025.6'))->toLatLng();
$this->assertEquals('(0.97053474915648, 0.66268771618818)', (string) $s2ll);
$loc_1 = \S2\S2LatLng::fromDegrees(55.605873, 37.970864);
$loc_ezhio = \S2\S2LatLng::fromE6(55608152, 37972176);
$loc_oktz = \S2\S2LatLng::fromE6(55607195, 37971367);
$loc_art = \S2\S2LatLng::fromE6(55605726, 37970664);
$dist = self::GreatEarthDistance($loc_1, $s2ll);
$this->assertEquals(212.99711509717, $dist);
}
/**
* @param GetMapObjectsMessage $msg
* @param int $width
*/
protected function addCellIds(GetMapObjectsMessage $msg, $width = 6)
{
$latLng = S2LatLng::fromDegrees($this->session->getLocation()->getLatitude(), $this->session->getLocation()->getLongitude());
$cellId = S2CellId::fromLatLng($latLng)->parent(15);
$size = 2 ** (S2CellId::MAX_LEVEL - $cellId->level());
$iIndex = 0;
$jIndex = 0;
$face = $cellId->toFaceIJOrientation($iIndex, $jIndex);
$halfWidth = (int) floor($width / 2);
for ($x = -$halfWidth; $x <= $halfWidth; $x++) {
for ($y = -$halfWidth; $y <= $halfWidth; $y++) {
$msg->addCellId(S2CellId::fromFaceIJ($face, $iIndex + $x * $size, $jIndex + $y * $size)->parent(15)->id());
}
}
}
