container = html`<div style="height: 400px;"></div>`
mutable z = 42
map.on("zoom, move", () => mutable z = map.getBounds())
map = {
var map = L.map(container).setView([38.9072, -77.0369], 1);
L.tileLayer('https://stamen-tiles.a.ssl.fastly.net/terrain/{z}/{x}/{y}.jpg', {
maxZoom: 20,
attribution: 'Map tiles by <a target="_top" rel="noopener" href="http://stamen.com">Stamen Design</a>, under <a target="_top" rel="noopener" href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>. Data by <a target="_top" rel="noopener" href="http://openstreetmap.org">OpenStreetMap</a>, under <a target="_top" rel="noopener" href="http://creativecommons.org/licenses/by-sa/3.0">CC BY SA</a>',
tileSize: 512,
zoomOffset: -1
}).addTo(map);
invalidation.then(() => map.remove());
return map;
}
quakes = {
function onEachFeature(feature, layer) {
var popupContent = "<p> Earthquake Location: " +
feature.properties.place +". <p> Magnitude: " + feature.properties.mag + "<p> Coordinates: " + feature.geometry.coordinates;
if (feature.properties && feature.properties.popupContent) {
popupContent += feature.properties.popupContent;
}
layer.bindPopup(popupContent);
}
const quakes = L.geoJSON([earthquakes], {
style: function (feature) {
return feature.properties && feature.properties.style;
},
onEachFeature: onEachFeature,
pointToLayer: function (feature, latlng) {
return L.circleMarker(latlng, {
radius: 8,
fillColor: "#ff7800",
color: "#000",
weight: 1,
opacity: 1,
fillOpacity: 0.8
});
}
}).addTo(map);
return quakes;
}
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