diff --git a/Apps/SampleData/MultipartVehicle_part1.czml b/Apps/SampleData/MultipartVehicle_part1.czml
new file mode 100644
index 00000000000..c9f1d359fd3
--- /dev/null
+++ b/Apps/SampleData/MultipartVehicle_part1.czml
@@ -0,0 +1,244 @@
+[
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+ "version":"1.0"
+ },
+ {
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+ "boolean":true
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+ ],
+ "style":"FILL",
+ "text":"Test Vehicle",
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diff --git a/Apps/SampleData/MultipartVehicle_part2.czml b/Apps/SampleData/MultipartVehicle_part2.czml
new file mode 100644
index 00000000000..a1a7f69045b
--- /dev/null
+++ b/Apps/SampleData/MultipartVehicle_part2.czml
@@ -0,0 +1,174 @@
+[
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+ ]
+ }
+ }
+]
diff --git a/Apps/SampleData/MultipartVehicle_part3.czml b/Apps/SampleData/MultipartVehicle_part3.czml
new file mode 100644
index 00000000000..610d6cb8ea1
--- /dev/null
+++ b/Apps/SampleData/MultipartVehicle_part3.czml
@@ -0,0 +1,114 @@
+[
+ {
+ "id":"document",
+ "version":"1.0"
+ },
+ {
+ "id":"Vehicle",
+ "properties" : {
+ "fuel_remaining" : {
+ "epoch":"2012-08-04T16:00:00Z",
+ "number": [
+ 4500, 18.6
+ ]
+ }
+ },
+ "position":{
+ "interpolationAlgorithm":"LAGRANGE",
+ "interpolationDegree":1,
+ "epoch":"2012-08-04T16:00:00Z",
+ "cartesian":[
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+ ]
+ }
+ }
+]
diff --git a/Apps/Sandcastle/gallery/Multi-part CZML.html b/Apps/Sandcastle/gallery/Multi-part CZML.html
new file mode 100644
index 00000000000..68b80c6b1fa
--- /dev/null
+++ b/Apps/Sandcastle/gallery/Multi-part CZML.html
@@ -0,0 +1,158 @@
+<!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="A CZML example showing a single entity path split across multiple CZML streams.">
+ <meta name="cesium-sandcastle-labels" content="Showcases, DataSources, CZML">
+ <title>Cesium Demo</title>
+ <script type="text/javascript" src="../Sandcastle-header.js"></script>
+ <script type="text/javascript" src="../../../ThirdParty/requirejs-2.1.20/require.js"></script>
+ <script type="text/javascript">
+ if(typeof require === "function") {
+ require.config({
+ baseUrl : '../../../Source',
+ waitSeconds : 120
+ });
+ }
+ </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>
+
+<script id="cesium_sandcastle_script">
+function startup(Cesium) {
+ 'use strict';
+//Sandcastle_Begin
+var viewer = new Cesium.Viewer('cesiumContainer', {
+ shouldAnimate : true
+});
+
+var statusDisplay = document.createElement('div');
+var fuelDisplay = document.createElement('div');
+var czmlPath = '../../SampleData/';
+var vehicleEntity;
+
+// Add a blank CzmlDataSource to hold our multi-part entity/entities.
+var dataSource = new Cesium.CzmlDataSource();
+viewer.dataSources.add(dataSource);
+
+// This demo shows how a single path can be broken up into several CZML streams.
+var partsToLoad = [{
+ url: 'MultipartVehicle_part1.czml',
+ range: [0, 1500],
+ requested: false,
+ loaded: false
+}, {
+ url: 'MultipartVehicle_part2.czml',
+ range: [1500, 3000],
+ requested: false,
+ loaded: false
+}, {
+ url: 'MultipartVehicle_part3.czml',
+ range: [3000, 4500],
+ requested: false,
+ loaded: false
+}];
+
+function updateStatusDisplay() {
+ var msg = '';
+ partsToLoad.forEach(function(part) {
+ msg += part.url + ' - ';
+ if (part.loaded) {
+ msg += 'Loaded.<br/>';
+ } else if (part.requested) {
+ msg += 'Loading now...<br/>';
+ } else {
+ msg += 'Not needed yet.<br/>';
+ }
+ });
+ statusDisplay.innerHTML = msg;
+}
+
+// Helper function to mark a part as requested, and process it into the dataSource.
+function processPart(part) {
+ part.requested = true;
+ updateStatusDisplay();
+ dataSource.process(czmlPath + part.url).then(function() {
+ part.loaded = true;
+ updateStatusDisplay();
+
+ // Follow the vehicle with the camera.
+ if (!viewer.trackedEntity) {
+ viewer.trackedEntity = vehicleEntity = dataSource.entities.getById('Vehicle');
+ }
+ });
+}
+
+// Load the first part up front.
+processPart(partsToLoad[0]);
+
+// Load a new section before the clock naturally gets there.
+// Note this can't predict when a user may fast-forward to it.
+var preloadTimeInSeconds = 100;
+
+viewer.clock.onTick.addEventListener(function(clock) {
+ // This example uses time offsets from the start to identify which parts need loading.
+ var timeOffset = Cesium.JulianDate.secondsDifference(clock.currentTime, clock.startTime);
+
+ // Filter the list of parts to just the ones that need loading right now.
+ // Then, process each part that needs loading.
+ partsToLoad.filter(function(part) {
+ return (!part.requested) &&
+ (timeOffset >= part.range[0] - preloadTimeInSeconds) &&
+ (timeOffset <= part.range[1]);
+ }).forEach(function(part) {
+ processPart(part);
+ });
+
+ if (vehicleEntity) {
+ var fuel = vehicleEntity.properties.fuel_remaining.getValue(clock.currentTime);
+ if (Cesium.defined(fuel)) {
+ fuelDisplay.textContent = 'Fuel: ' + fuel.toFixed(2) + ' gal';
+ }
+ }
+});
+
+// Add a reset button, for convenience.
+Sandcastle.addToolbarButton('Reset demo', function() {
+ // Put things back to the starting position.
+ viewer.clock.currentTime = viewer.clock.startTime;
+ viewer.clock.shouldAnimate = true;
+
+ partsToLoad.forEach(function(part) {
+ part.requested = false;
+ part.loaded = false;
+ });
+
+ dataSource.entities.removeAll();
+ processPart(partsToLoad[0]);
+});
+
+// Show the status display below the reset button.
+statusDisplay.style.background = 'rgba(42, 42, 42, 0.7)';
+statusDisplay.style.padding = '5px 10px';
+document.getElementById('toolbar').appendChild(statusDisplay);
+
+// Show a multi-part custom property being read from CZML.
+fuelDisplay.style.background = 'rgba(42, 42, 42, 0.7)';
+fuelDisplay.style.padding = '5px 10px';
+fuelDisplay.style.marginTop = '5px';
+document.getElementById('toolbar').appendChild(fuelDisplay);
+//Sandcastle_End
+ Sandcastle.finishedLoading();
+}
+if (typeof Cesium !== "undefined") {
+ startup(Cesium);
+} else if (typeof require === "function") {
+ require(["Cesium"], startup);
+}
+</script>
+</body>
+</html>
diff --git a/Apps/Sandcastle/gallery/Multi-part CZML.jpg b/Apps/Sandcastle/gallery/Multi-part CZML.jpg
new file mode 100644
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* Removed the 6-clipping-plane limit.
* Added support for Internet Explorer.
* Added a `ClippingPlane` object to be used with `ClippingPlaneCollection`.
+* Updated `WebMapServiceImageryProvider` so it can take an srs or crs string to pass to the resource query parameters based on the WMS version. [#6223](https://github.com/AnalyticalGraphicsInc/cesium/issues/6223)
+* Added a multi-part CZML example to Sandcastle. [#6320](https://github.com/AnalyticalGraphicsInc/cesium/pull/6320)
##### Fixes :wrench:
* Fixed support of glTF-supplied tangent vectors. [#6302](https://github.com/AnalyticalGraphicsInc/cesium/pull/6302)
* Fixed improper zoom during model load failure. [#6305](https://github.com/AnalyticalGraphicsInc/cesium/pull/6305)
-#### Additions :tada:
-* Updated `WebMapServiceImageryProvider` so it can take an srs or crs string to pass to the resource query parameters based on the WMS version. [#6223](https://github.com/AnalyticalGraphicsInc/cesium/issues/6223)
-
### 1.43 - 2018-03-01
##### Major Announcements :loudspeaker: