Wikitude

World.placeGeoObjects  =  ClusterHelper.createClusteredPlaces(55, World.userLocation, World.markerListUnclustered);

for (var i=0; i<World.placeGeoObjects.length; i++) {
// document.getElementById("test").innerHTML +=  "z"+World.placeGeoObjects[i].places.length;
    for (var j=0; j<World.placeGeoObjects[i].places.length; j++) {
        singlePoi = World.placeGeoObjects[i].places[j];
        singlePoi.altitude =  j * 250;
        singlePoi.location.altitude =  j * 250;
        World.markerList.push(new Marker(singlePoi));
    }
}


this.markerObject = new AR.GeoObject(poiData.location, {

   drawables: {
        cam: [this.markerDrawable_idle, this.markerDrawable_selected, this.titleLabel, this.categoryLabel],
        indicator: this.directionIndicatorDrawable
    }
});