$ref_points = array (

                     'Tour de bretagne' => array(47.217611, -1.558167, 120+19.000),

                     'Sillon de bretagne' => array(47.244444, -1.608222, 85+49.000),

                     'Ecole archi' => array(47.207, -1.557361, 30+6.000),

                     'Palais de justice' => array(47.207639, -1.5615, 25+6.000),

                     'Blockhaus DY10' => array(47.206528, -1.563861, 7+6.000),

                     'Cite radieuse' => array(47.18875, -1.568111, 52+17.000)                

					 'HOST' => array(47.17826,-1.56448, 35.938+20), // 5 grands étages

					 'HITS' => array(47.230965,-1.63146, 12+51), // 3 grands étages

					 'Cogent' => array(47.20319,-1.55025, 16+10) // 4 grands étages

					 );