map = {
const container = html`<div style="height:600px;">`;
yield container;
const map = L.map(container).setView([40.7299, -73.9923], 13);
L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
attribution: "© <a href=https://www.openstreetmap.org/copyright>OpenStreetMap</a> contributors"
}).addTo(map);
function onEachFeature(feature, layer) {
// does this feature have a property named popupContent?
if (feature.properties && feature.properties.popupContent) {
layer.bindPopup(feature.properties.popupContent);
}
}
const geojsonFeatureCollection = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {
"date":"11/07/73",
"lat":true,
"lon":false,
"popupContent": "11/07/73 Self (Aboard Ship)"
},
"geometry": {
"coordinates": [
[
-58.88333333,
90
],
[
-58.88333333,
-90
]
],
"type": "LineString"
}
},
{
"type": "Feature",
"properties": {
"popupContent": "11/07/73 Middle of Bridgetown (From Ship)"
},
"geometry": {
"coordinates": [
[
-90,
13.0975
],
[
90,
13.0975
]
],
"type": "LineString"
}
},
{
"type": "Feature",
"properties": {
"popupContent": "11/7/1673: Church in Bridgetown (From Ship)"
},
"geometry": {
"coordinates": [
-59,
13.09166667
],
"type": "Point"
}
}
]
};
L.geoJSON(geojsonFeatureCollection,{
onEachFeature: onEachFeature
}).addTo(map);
}
L = {
const L = await require("leaflet@1/dist/leaflet.js");
if (!L._style) {
const href = await require.resolve("leaflet@1/dist/leaflet.css");
document.head.appendChild(L._style = html`<link href=${href} rel=stylesheet>`);
}
return L;
}
One platform to build and deploy the best data apps
Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.