Set the center location on Google map using ACF plugin

function.php

add_filter('wpgmp_maps_options','wpgmp_maps_options',1,2);
function wpgmp_maps_options($default,$map_id) {

global $post;

$acf_location = get_post_meta($post->ID,'location');

if(is_array($acf_location)) {
	$default['center_lat']= $acf_location[0]['lat'];
	$default['center_lng']= $acf_location[0]['lng'];
}

return $default;
}