codeigniter - CodeIgniter Google Maps V3 API 库每次获取新方向时都必须重新加载而不加载页面

Question

我正在使用CodeIgniter Google Maps V3 API 库，每次执行新方向时都需要加载地图，我无法刷新页面，所以我只需要刷新地图。怎么能做到呢？

我必须在这段代码中添加什么？

    $config['center'] = 'auto';
    $config['zoom'] = 'auto';
    $config['directions'] = TRUE;
    $config['directionsStart'] = $directionsStart;
    $config['directionsWaypointArray'] = $directionsWaypointArray;
    $config['directionsEnd'] = $directionsEnd;
    $config['directionsDivID'] = 'directionsDiv';
    $this->googlemaps->initialize($config);
    $data['map'] = $this->googlemaps->create_map();