hexegonLayer = () => new deck.HexagonLayer({
data:nycRoadAccidents,
upperPercentile:99,
pickable: true,
extruded: true,
radius: 200,
elevationScale: 4,
getPosition: d => [d.long,d.lat],
onHover: ({object, x, y}) => {
const tooltip = `${object.centroid.join(', ')}\nCount: ${object.points.length}`;
},
})