# CZML guide

**URL:** <https://community.cesium.com/t/czml-guide/1135>\
**Category:** CesiumJS\
**Created:** [April 14, 2014, 3:54pm UTC](https://community.cesium.com/t/czml-guide/1135 "2014-04-14T15:54:02Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bmc0877](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@bmc0877](https://community.cesium.com/u/bmc0877)\
**Post date:** [April 14, 2014, 3:54pm UTC](https://community.cesium.com/t/czml-guide/1135/1 "2014-04-14T15:54:02Z")

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I'm trying to follow the CZML guide ([https://github.com/AnalyticalGraphicsInc/cesium/wiki/CZML-in-Cesium](https://github.com/AnalyticalGraphicsInc/cesium/wiki/CZML-in-Cesium)) but it seems like it's out of date. I'm trying to use CZML in a Cesium widget - not the viewer. Where did the VisualizerCollection go?

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**Author:** ![bmc0877](https://avatars.discourse-cdn.com/v4/letter/b/96bed5/32.png) [@bmc0877](https://community.cesium.com/u/bmc0877)\
**Post date:** [April 16, 2014, 2:46pm UTC](https://community.cesium.com/t/czml-guide/1135/2 "2014-04-16T14:46:18Z")

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Frustrating...

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**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:** [April 21, 2014, 1:41am UTC](https://community.cesium.com/t/czml-guide/1135/3 "2014-04-21T01:41:50Z")

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That page is very out of date. I threw together a simple example based on the Cesium HelloWorld.html that loads a data source and updates the display; you can get it here: [https://gist.github.com/mramato/11129907](https://gist.github.com/mramato/11129907) We’ll update the wiki pages eventually, but we want to stablize the API first because they are difficult to keep up to date.

Hope that helps,

Matt