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[resolved] How to get geocoordinates out of Mappress Maps (1 post)

  1. seolobster
    Member
    Posted 2 years ago #

    I recently had an issue where I had to rework a page which already hat exisiting Mappress Maps.

    What I needed there was the geocoordinates in order to calculate distances to other points

    In case you need it here a the formulas for this

    $maps  = Mappress_Map::get_post_map_list($post->ID);
    		//Get first map
    		   if (is_array($maps) && isset($maps[0]))
    
    		   {
    			$lat = $maps[0]->pois[0]->point['lat'];
    			$lng = $maps[0]->pois[0]->point['lng'];
                       }

    Calculating distance

    function distance($lat1, $lng1, $lat2, $lng2, $miles = true)
    {
    $pi80 = M_PI / 180;
    $lat1 *= $pi80;
    $lng1 *= $pi80;
    $lat2 *= $pi80;
    $lng2 *= $pi80;
    $r = 6372.797; // mean radius of Earth in km
    $dlat = $lat2 - $lat1;
    $dlng = $lng2 - $lng1;
    $a = sin($dlat / 2) * sin($dlat / 2) + cos($lat1) * cos($lat2) * sin($dlng / 2) * sin($dlng / 2);
    $c = 2 * atan2(sqrt($a), sqrt(1 - $a));
    $km = $r * $c;
    return ($miles ? ($km * 0.621371192) : $km);
    }

    calling function

    echo round(distance($lat, $lng, 48.3534693, 11.7811621, false), 2).' Kilometers';

    Hope this helps others!
    (and also cudos to Chris Richardson who develops and maintains Mappress!)

    http://wordpress.org/extend/plugins/mappress-google-maps-for-wordpress/

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