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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="How to export a subset of a CesiumJS scene as a KML/KMZ file."
/>
<meta name="cesium-sandcastle-labels" content="Showcases, DataSources" />
<title>Export KML</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);
</style>
<div id="cesiumContainer" class="fullSize"></div>
<div id="loadingOverlay"><h1>Loading...</h1></div>
<div id="toolbar">
<div id="propertiesMenu"></div>
</div>
<script id="cesium_sandcastle_script">
function startup(Cesium) {
"use strict";
//Sandcastle_Begin
var viewer = new Cesium.Viewer("cesiumContainer", {
shouldAnimate: true,
});
var modelCzml = [
{
id: "document",
name: "CZML Model",
version: "1.0",
},
{
id: "truck model",
name: "Cesium Milk Truck",
position: {
cartographicDegrees: [-77, 37, 0],
},
model: {
gltf:
"../../SampleData/models/CesiumMilkTruck/CesiumMilkTruck.glb",
},
},
];
function downloadBlob(filename, blob) {
if (window.navigator.msSaveOrOpenBlob) {
window.navigator.msSaveBlob(blob, filename);
} else {
var elem = window.document.createElement("a");
elem.href = window.URL.createObjectURL(blob);
elem.download = filename;
document.body.appendChild(elem);
elem.click();
document.body.removeChild(elem);
}
}
function reset() {
viewer.trackedEntity = undefined;
viewer.dataSources.removeAll();
}
// We fetch the resources that will be embedded in the KMZ file.
var daeModelPromise = Cesium.Resource.fetchBlob({
url: "../../SampleData/models/CesiumMilkTruck/CesiumMilkTruck.dae",
});
var texturePromise = Cesium.Resource.fetchBlob({
url: "../../SampleData/models/CesiumMilkTruck/CesiumMilkTruck.jpg",
});
// This callback allows us to set the URL of the model to use
// a COLLADA version of the model instead of the glTF version.
// It also lets us specify the files that will be embedded in the exported KMZ.
function modelCallback(modelGraphics, time, externalFiles) {
var resource = modelGraphics.uri.getValue(time);
if (resource.url.indexOf("CesiumMilkTruck") !== -1) {
externalFiles["model/CesiumMilkTruck.dae"] = daeModelPromise;
externalFiles["model/CesiumMilkTruck.jpg"] = texturePromise;
return "model/CesiumMilkTruck.dae";
}
throw Cesium.RuntimeError("Unknown Model");
}
var filenameToSave = "";
var dataSourcePromise;
Sandcastle.addToolbarMenu(
[
{
text: "Satellites",
onselect: function () {
reset();
filenameToSave = "Satellites.kmz";
dataSourcePromise = Cesium.CzmlDataSource.load(
"../../SampleData/simple.czml"
);
viewer.dataSources.add(dataSourcePromise);
viewer.camera.flyHome(0);
},
},
{
text: "Model",
onselect: function () {
reset();
filenameToSave = "Model.kmz";
dataSourcePromise = Cesium.CzmlDataSource.load(modelCzml);
viewer.dataSources
.add(dataSourcePromise)
.then(function (dataSource) {
viewer.trackedEntity = dataSource.entities.getById(
"truck model"
);
});
},
},
],
"propertiesMenu"
);
Sandcastle.addToolbarButton("Download", function () {
dataSourcePromise
.then(function (dataSource) {
return Cesium.exportKml({
entities: dataSource.entities,
kmz: true,
modelCallback: modelCallback,
});
})
.then(function (result) {
downloadBlob(filenameToSave, result.kmz);
})
.otherwise(console.error);
});
//Sandcastle_End
Sandcastle.finishedLoading();
}
if (typeof Cesium !== "undefined") {
window.startupCalled = true;
startup(Cesium);
}
</script>
</body>
</html>