dynamic billboard using czmlDatasource

CesiumJS
1

Hello Patrick,

Our product is replacing googleEarth with cesium very soon.

i wanted to generate dynamic billboards based on the availabilty of that billboard based on its availability during that time. but could not render the image on the cesiummap.

i am not getting any exceptions as such, but unable to render the image in the billboard.

please let me know where i have gone wrong in the below code.

var viewer = new Cesium.Viewer(‘cesiumContainer’);

//main method

Sandcastle.addDefaultToolbarButton(‘Satellites’, function() {

var czmlDataSource = new Cesium.CzmlDataSource();

var id = “1234CZML”;

//dyn object

var dyo = czmlDataSource.entities.getOrCreateEntity(id);

var timeInterval = new Cesium.TimeInterval({

start : Cesium.JulianDate.fromIso8601(‘2015-01-06T00:00:00Z’),

stop : Cesium.JulianDate.fromIso8601(‘2015-01-07T00:00:00Z’),

isStartTimeIncluded : true,

iSStopTimeIncluded : true

});

//AvialabiltyofDynamicObject

var timeIntervalAvailableBB = new Cesium.TimeIntervalCollection();

timeIntervalAvailableBB.addInterval(timeInterval);

dyo.availability = timeIntervalAvailableBB;

// DynBill

var dynamicBillboard = Cesium.BillboardGraphics;

dynamicBillboard.image = new Cesium.ConstantProperty(’…/images/Cesium_Logo_overlay.png’);

dynamicBillboard.scale = new Cesium.ConstantProperty(1);

dynamicBillboard.show = true;

//dynamicBillboard.interval=timeInterval;

dyo.billboard = dynamicBillboard;

//DynPos

dyo.position = Cesium.Cartesian3.fromDegrees(-75.59777, 40.03883)

viewer.dataSources.add(czmlDataSource);

createVisualizers(viewer.scene, czmlDataSource);

});

//supporting methods

function createVisualizers(scene, dataSource) {

return [new Cesium.BillboardVisualizer(scene, dataSource.entities)];

}

thanks and regards,

chandrika

2

Chandrika, you would probably be very interested in the revamped Entity API we are releasing next week. You can check out this post for a detailed preview. I’m also in the process of writing up a full tutorial which should answer a lot of your questions and make it much easier to transition from Google Earth.

3

Hello Mathew,

Thats great, so far had great fun working on cesium, looking forward to work on the new features which u have come up with.

thanks and regards

chandrika