"移動後の経度","y"=>"移動後の緯度"); */ function adjust($x,$y,$deltaX,$deltaY,$z){ $offset=268435456; $radius=$offset / pi(); $xy = array( "x"=>((round(round($offset + $radius * $x * pi()/180)+($deltaX << (21-$z))) - $offset) / $radius) * 180 / pi(), "y"=>(pi() / 2 - 2 * atan(exp((round(round($offset - $radius * log((1 + sin($y * pi() / 180))/(1 - sin($y * pi() / 180))) / 2)+($deltaY << (21-$z))) - $offset) / $radius))) * 180 / pi() ); return $xy; } ?>

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