# \[cesium-dev\] How to use Cesium coordinates

**URL:** <https://community.cesium.com/t/cesium-dev-how-to-use-cesium-coordinates/2044>\
**Category:** CesiumJS\
**Created:** [February 23, 2015, 1:37am UTC](https://community.cesium.com/t/cesium-dev-how-to-use-cesium-coordinates/2044 "2015-02-23T01:37:39Z")\
**Posts on this page:** 1\
**Page:** 1

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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:** [February 23, 2015, 1:37am UTC](https://community.cesium.com/t/cesium-dev-how-to-use-cesium-coordinates/2044/1 "2015-02-23T01:37:39Z")

</div>

The polygon and 3d model demos should answer both of your questions:

[http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Polygon.html&label=Geometries](http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=Polygon.html&label=Geometries)

[http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=3D%20Models.html&label=Showcases](http://cesiumjs.org/Cesium/Apps/Sandcastle/index.html?src=3D%20Models.html&label=Showcases)

I would also recommend taking a look at the Visualizing Spatial Data tutorial: [http://cesiumjs.org/2015/02/02/Visualizing-Spatial-Data/](http://cesiumjs.org/2015/02/02/Visualizing-Spatial-Data/)

If you are still having problems, let us know.