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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no" />
<title>Basemaps with different projections | Sample | ArcGIS API for JavaScript 4.23</title>
<link rel="stylesheet" href="https://js.arcgis.com/4.23/esri/themes/light/main.css" />
<script src="https://js.arcgis.com/4.23/"></script>
<style>
html,
body,
#viewDiv {
padding: 0;
margin: 0;
height: 100%;
width: 100%;
}
#srDiv{
height: 40px;
padding: 10px;
}
</style>
<script>
require([
"esri/Map",
"esri/views/MapView",
"esri/portal/Portal",
"esri/widgets/BasemapGallery",
"esri/widgets/BasemapGallery/support/PortalBasemapsSource",
"esri/widgets/Expand"
], function(
Map,
MapView,
Portal,
BasemapGallery,
PortalBasemapsSource,
Expand
) {
const portal = new Portal();
// source for basemaps from a portal group
// containing basemaps with different projections
const source = new PortalBasemapsSource({
portal,
query: {
id: "bdb9d65e0b5c480c8dcc6916e7f4e099"
}
});
const map = new Map({
basemap: {
portalItem: {
id: "8d91bd39e873417ea21673e0fee87604" // nova basemap
}
}
});
// center the view over 48 states
const view = new MapView({
container: "viewDiv",
map: map,
center: [-100, 35],
zoom: 2,
constraints: {
snapToZoom: false
}
});
view.ui.add("srDiv", "top-right");
const bgExpand = new Expand({
view,
content: new BasemapGallery({ source, view }),
expandIconClass: "esri-icon-basemap"
});
view.ui.add(bgExpand, "top-right");
view.watch("spatialReference", ()=> {
document.getElementById("srDiv").innerHTML = `view.spatialReference.wkid = <b>${view.spatialReference.wkid}</b>`;
});
});
</script>
</head>
<body>
<div id="viewDiv"></div>
<div id="srDiv" class="esri-widget"></div>
</body>
</html>