<!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="Cluster labels, billboards and points." />
|
<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">
|
<table>
|
<tbody>
|
<tr>
|
<td>Pixel Range</td>
|
<td>
|
<input
|
type="range"
|
min="1"
|
max="200"
|
step="1"
|
data-bind="value: pixelRange, valueUpdate: 'input'"
|
/>
|
<input type="text" size="2" data-bind="value: pixelRange" />
|
</td>
|
</tr>
|
<tr>
|
<td>Minimum Cluster Size</td>
|
<td>
|
<input
|
type="range"
|
min="2"
|
max="20"
|
step="1"
|
data-bind="value: minimumClusterSize, valueUpdate: 'input'"
|
/>
|
<input
|
type="text"
|
size="2"
|
data-bind="value: minimumClusterSize"
|
/>
|
</td>
|
</tr>
|
</tbody>
|
</table>
|
</div>
|
<script id="cesium_sandcastle_script">
|
function startup(Cesium) {
|
"use strict";
|
//Sandcastle_Begin
|
var viewer = new Cesium.Viewer("cesiumContainer");
|
|
var options = {
|
camera: viewer.scene.camera,
|
canvas: viewer.scene.canvas,
|
};
|
var dataSourcePromise = viewer.dataSources.add(
|
Cesium.KmlDataSource.load(
|
"../../SampleData/kml/facilities/facilities.kml",
|
options
|
)
|
);
|
dataSourcePromise.then(function (dataSource) {
|
var pixelRange = 15;
|
var minimumClusterSize = 3;
|
var enabled = true;
|
|
dataSource.clustering.enabled = enabled;
|
dataSource.clustering.pixelRange = pixelRange;
|
dataSource.clustering.minimumClusterSize = minimumClusterSize;
|
|
var removeListener;
|
|
var pinBuilder = new Cesium.PinBuilder();
|
var pin50 = pinBuilder
|
.fromText("50+", Cesium.Color.RED, 48)
|
.toDataURL();
|
var pin40 = pinBuilder
|
.fromText("40+", Cesium.Color.ORANGE, 48)
|
.toDataURL();
|
var pin30 = pinBuilder
|
.fromText("30+", Cesium.Color.YELLOW, 48)
|
.toDataURL();
|
var pin20 = pinBuilder
|
.fromText("20+", Cesium.Color.GREEN, 48)
|
.toDataURL();
|
var pin10 = pinBuilder
|
.fromText("10+", Cesium.Color.BLUE, 48)
|
.toDataURL();
|
|
var singleDigitPins = new Array(8);
|
for (var i = 0; i < singleDigitPins.length; ++i) {
|
singleDigitPins[i] = pinBuilder
|
.fromText("" + (i + 2), Cesium.Color.VIOLET, 48)
|
.toDataURL();
|
}
|
|
function customStyle() {
|
if (Cesium.defined(removeListener)) {
|
removeListener();
|
removeListener = undefined;
|
} else {
|
removeListener = dataSource.clustering.clusterEvent.addEventListener(
|
function (clusteredEntities, cluster) {
|
cluster.label.show = false;
|
cluster.billboard.show = true;
|
cluster.billboard.id = cluster.label.id;
|
cluster.billboard.verticalOrigin =
|
Cesium.VerticalOrigin.BOTTOM;
|
|
if (clusteredEntities.length >= 50) {
|
cluster.billboard.image = pin50;
|
} else if (clusteredEntities.length >= 40) {
|
cluster.billboard.image = pin40;
|
} else if (clusteredEntities.length >= 30) {
|
cluster.billboard.image = pin30;
|
} else if (clusteredEntities.length >= 20) {
|
cluster.billboard.image = pin20;
|
} else if (clusteredEntities.length >= 10) {
|
cluster.billboard.image = pin10;
|
} else {
|
cluster.billboard.image =
|
singleDigitPins[clusteredEntities.length - 2];
|
}
|
}
|
);
|
}
|
|
// force a re-cluster with the new styling
|
var pixelRange = dataSource.clustering.pixelRange;
|
dataSource.clustering.pixelRange = 0;
|
dataSource.clustering.pixelRange = pixelRange;
|
}
|
|
// start with custom style
|
customStyle();
|
|
var viewModel = {
|
pixelRange: pixelRange,
|
minimumClusterSize: minimumClusterSize,
|
};
|
Cesium.knockout.track(viewModel);
|
|
var toolbar = document.getElementById("toolbar");
|
Cesium.knockout.applyBindings(viewModel, toolbar);
|
|
function subscribeParameter(name) {
|
Cesium.knockout
|
.getObservable(viewModel, name)
|
.subscribe(function (newValue) {
|
dataSource.clustering[name] = newValue;
|
});
|
}
|
|
subscribeParameter("pixelRange");
|
subscribeParameter("minimumClusterSize");
|
|
Sandcastle.addToggleButton("Enabled", true, function (checked) {
|
dataSource.clustering.enabled = checked;
|
});
|
|
Sandcastle.addToggleButton("Custom Styling", true, function (
|
checked
|
) {
|
customStyle();
|
});
|
|
var handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
|
handler.setInputAction(function (movement) {
|
var pickedLabel = viewer.scene.pick(movement.position);
|
if (Cesium.defined(pickedLabel)) {
|
var ids = pickedLabel.id;
|
if (Array.isArray(ids)) {
|
for (var i = 0; i < ids.length; ++i) {
|
ids[i].billboard.color = Cesium.Color.RED;
|
}
|
}
|
}
|
}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
|
});
|
//Sandcastle_End
|
Sandcastle.finishedLoading();
|
}
|
if (typeof Cesium !== "undefined") {
|
window.startupCalled = true;
|
startup(Cesium);
|
}
|
</script>
|
</body>
|
</html>
|
