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HTML

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta
name="viewport"
content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no"
/>
<meta
name="description"
content="Attach a custom data source to the geocoder widget."
/>
<meta name="cesium-sandcastle-labels" content="Tutorials,Showcases" />
<title>Cesium Demo</title>
<script type="text/javascript" src="../Sandcastle-header.js"></script>
<script
type="text/javascript"
src="../../../Build/CesiumUnminified/Cesium.js"
nomodule
></script>
<script type="module" src="../load-cesium-es6.js"></script>
</head>
<body
class="sandcastle-loading"
data-sandcastle-bucket="bucket-requirejs.html"
>
<style>
@import url(../templates/bucket.css);
#toolbar {
background: rgba(42, 42, 42, 0.8);
padding: 4px;
border-radius: 4px;
}
#toolbar input {
vertical-align: middle;
padding-top: 2px;
padding-bottom: 2px;
}
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar"></div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
"use strict";
//Sandcastle_Begin
/**
* This class is an example of a custom geocoder. It provides geocoding through the OpenStreetMap Nominatim service.
* @alias OpenStreetMapNominatimGeocoder
* @constructor
*/
function OpenStreetMapNominatimGeocoder() {}
/**
* The function called to geocode using this geocoder service.
*
* @param {String} input The query to be sent to the geocoder service
* @returns {Promise<GeocoderService.Result[]>}
*/
OpenStreetMapNominatimGeocoder.prototype.geocode = function (input) {
var endpoint = "https://nominatim.openstreetmap.org/search";
var resource = new Cesium.Resource({
url: endpoint,
queryParameters: {
format: "json",
q: input,
},
});
return resource.fetchJson().then(function (results) {
var bboxDegrees;
return results.map(function (resultObject) {
bboxDegrees = resultObject.boundingbox;
return {
displayName: resultObject.display_name,
destination: Cesium.Rectangle.fromDegrees(
bboxDegrees[2],
bboxDegrees[0],
bboxDegrees[3],
bboxDegrees[1]
),
};
});
});
};
var viewer = new Cesium.Viewer("cesiumContainer", {
geocoder: new OpenStreetMapNominatimGeocoder(),
});
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
window.startupCalled = true;
startup(Cesium);
}
</script>
</body>
</html>