define("GOOGLE_MAP_API_KEY","ABQIAAAAGY3lQOdbgd2WQ66-DSls9xQJLW2uUOv6erN8GK6WJWlmVwXU9hT88GBJ0bqScfnx1yVDaU0aGiSikg"); $lat = htmlspecialchars($_GET["lat"]); $lng = htmlspecialchars($_GET["lng"]); if($lat == ""){ $lat = "32.520209"; } if($lng == ""){ $lng = "130.419973"; } $c_lat = htmlspecialchars($_GET["c_lat"]); $c_lng = htmlspecialchars($_GET["c_lng"]); if($c_lat == ""){ $c_lat = $lat; } if($c_lng == ""){ $c_lng = $lng; } $z = htmlspecialchars($_GET["z"]); if($z ==""){ $z = 13; } $top = adjust($c_lng,$c_lat,0,-100,$z); $bottom = adjust($c_lng,$c_lat,0,100,$z); $left = adjust($c_lng,$c_lat,-100,0,$z); $right = adjust($c_lng,$c_lat,100,0,$z); 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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