# \[cesium-dev\] learn Cesium and kml try **URL:** \ **Category:** CesiumJS\ **Created:** [March 5, 2014, 9:32pm UTC](https://community.cesium.com/t/cesium-dev-learn-cesium-and-kml-try/1045 "2014-03-05T21:32:44Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![Scott\_Hunter](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/scott_hunter/32/2006_2.png) [@Scott\_Hunter](https://community.cesium.com/u/Scott_Hunter)\ **Post date:** [March 5, 2014, 9:32pm UTC](https://community.cesium.com/t/cesium-dev-learn-cesium-and-kml-try/1045/1 "2014-03-05T21:32:44Z")
A few problems: - `viewer.dataSource` should be `viewer.dataSources`. - `loadKmz` expects a Blob. To load from a URL, use `loadUrl` instead. ---
**Author:** ![Allen\_Song](https://avatars.discourse-cdn.com/v4/letter/a/8797f3/32.png) [@Allen\_Song](https://community.cesium.com/u/Allen_Song)\ **Post date:** [March 5, 2014, 9:54pm UTC](https://community.cesium.com/t/cesium-dev-learn-cesium-and-kml-try/1045/2 "2014-03-05T21:54:28Z")
Thanks Scott, it works now, but the spatial features still looks hiding under the Bing map image even I didn’t include terrain data. ---
**Author:** ![Matt\_Amato](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/matt_amato/32/1993_2.png) [@Matt\_Amato](https://community.cesium.com/u/Matt_Amato)\ **Post date:** [March 5, 2014, 9:55pm UTC](https://community.cesium.com/t/cesium-dev-learn-cesium-and-kml-try/1045/3 "2014-03-05T21:55:43Z")
Cesium KML support is still very much a work in progress, which is why it’s not part of the official Cesium release. If you can share the KML file you are trying to load, I can take a look at it and see what’s missing that we need to support. ---
**Author:** ![Allen\_Song](https://avatars.discourse-cdn.com/v4/letter/a/8797f3/32.png) [@Allen\_Song](https://community.cesium.com/u/Allen_Song)\ **Post date:** [March 5, 2014, 10:27pm UTC](https://community.cesium.com/t/cesium-dev-learn-cesium-and-kml-try/1045/4 "2014-03-05T22:27:54Z")
Tried to attach the kml, kmz files several times, not work; don’t know why. Actually I just use Google Earth to draw a polygon, lines and points. I will try to read KmlDataSource.js and also try to use Google Earth to create a kmz with z value. My kml file looks no z values. ---
**Author:** ![Allen\_Song](https://avatars.discourse-cdn.com/v4/letter/a/8797f3/32.png) [@Allen\_Song](https://community.cesium.com/u/Allen_Song)\ **Post date:** [March 6, 2014, 3:56pm UTC](https://community.cesium.com/t/cesium-dev-learn-cesium-and-kml-try/1045/5 "2014-03-06T15:56:33Z")
To load spatial features on Cesium terrain is important for us. But I found usually the loaded features are under the ground or higher than the terrain height. They are not perfectly draped on the terrain. I can only think about is creating a WFS/WMS server and use cesium api to load WFS url. But this way, can I use both WMS server as base layer (for example Bing satellite image) and WFS server as my customized spatial data? The reason for using WFS sever is I wish can mouse select individual feature and get attribute values. So I can visualize my data on 3D. Thanks. Allen ---
**Author:** ![vaibhav\_kumar](https://avatars.discourse-cdn.com/v4/letter/v/f9ae1b/32.png) [@vaibhav\_kumar](https://community.cesium.com/u/vaibhav_kumar)\ **Post date:** [May 10, 2014, 6:18am UTC](https://community.cesium.com/t/cesium-dev-learn-cesium-and-kml-try/1045/6 "2014-05-10T06:18:25Z")
Hi, I am also facing problem adding kmldatasources in the viewer. kmlDataSource.loadUrl('C:/xampp/htdocs/kmlcesium/Apps/Temp.kml').then(function(){             alert("555");             viewer.dataSources.add(kmlDataSource);             alert("666");             viewer.homeButton.viewModel.command();             alert("777")        }) It alerts till 555 Regards, vaibhav