var points1 = [];
for ( var i = 0; i < obj_to_push.length; i++ )
{
    var latlngs = new L.latLng(obj_to_push[i].lat, obj_to_push[i].lng);
    points1.push(latlngs);
}
polyline = new L.Polyline(points1, {
    weight:         5,
    opacity:        0.8,
    smoothFactor:   1,
    color:          Rotas.cores(leg.mode)
})
.bindPopup(Rotas.info_popup(leg), { 'minWidth': 400 })
.addTo(map)