Wordpress meta_query search by area (lat, lng) - wordpress

Question

I have area (lat0, lat1, lng0, lng1). Why my wp_query not working?
$new_query->query( array(
'post_type' => 'object',
'meta_query' => array(
array(
'relation' => 'AND',
array(
'key' => 'lat',
'compare' => 'BETWEEN',
'value' => array($lat0, $lat1),
'type' => 'DECIMAL',
),
array(
'key' => 'lng',
'compare' => 'BETWEEN',
'value' => array($lng0, $lng1),
'type' => 'DECIMAL',
)
),
),
)
);
I get some result if I use:
array(
'key' => 'lat',
'compare' => '<=',
'value' => $lat0,
'type' => 'DECIMAL',
),
But this code not working:
array(
'relation' => 'AND',
array(
'key' => 'lat',
'compare' => '>=',
'value' => $lat0,
'type' => 'DECIMAL',
),
array(
'key' => 'lat',
'compare' => '<=',
'value' => $lat1,
'type' => 'DECIMAL',
)
),
Can I use wp_query for search by area. And if this wrong way, what I can do?

Answer 1

Fixed
global $wpdb;
$querystr = "
SELECT *
FROM $wpdb->posts
INNER JOIN $wpdb->postmeta m1
ON ( $wpdb->posts.ID = m1.post_id )
INNER JOIN $wpdb->postmeta m2
ON ( $wpdb->posts.ID = m2.post_id )
INNER JOIN $wpdb->postmeta m3
ON ( $wpdb->posts.ID = m3.post_id )
WHERE
$wpdb->posts.post_type = 'object'
AND $wpdb->posts.post_status = 'publish'
AND ( m1.meta_key = 'lat' AND m1.meta_value < $lat0 )
AND ( m1.meta_key = 'lat' AND m1.meta_value > $lat1 )
AND ( m2.meta_key = 'lng' AND m2.meta_value < $lng0 )
AND ( m2.meta_key = 'lng' AND m2.meta_value > $lng1 )
AND ( m3.meta_key = 'city' AND m3.meta_value = $city_string )
GROUP BY $wpdb->posts.ID
ORDER BY $wpdb->posts.post_date
DESC;
";
$pageposts = $wpdb->get_results($querystr, OBJECT);