# Problem with Ellipsoid.cartographicToCartesian **URL:** \ **Category:** CesiumJS\ **Created:** [November 12, 2015, 7:36pm UTC](https://community.cesium.com/t/problem-with-ellipsoid-cartographictocartesian/3308 "2015-11-12T19:36:39Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Joshua\_Pappalardo](https://avatars.discourse-cdn.com/v4/letter/j/ba8739/32.png) [@Joshua\_Pappalardo](https://community.cesium.com/u/Joshua_Pappalardo)\ **Post date:** [November 12, 2015, 7:36pm UTC](https://community.cesium.com/t/problem-with-ellipsoid-cartographictocartesian/3308/1 "2015-11-12T19:36:39Z")
When calling viewer.scene.globe.ellipsoid.cartographicToCartesian I keep getting a Cartesian3 with NaN values for x, y, and z. Here are the values 1. cartesian\_0\_g$: o 2. x: NaN 3. y: NaN 4. z: NaN 5. **proto** : o 6. cartographic\_0\_g$: o 7. x: 1098265.9711996259 8. y: -4902148.7220744 9. z: 3916630.8851897623 ---
**Author:** ![hannah](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/hannah/32/4509_2.png) [@hannah](https://community.cesium.com/u/hannah)\ **Post date:** [November 12, 2015, 8:02pm UTC](https://community.cesium.com/t/problem-with-ellipsoid-cartographictocartesian/3308/2 "2015-11-12T20:02:49Z")
Hello, Can you paste a code sample that makes this happen? There might be a problem with your data. Thanks, Hannah ---
**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:** [November 12, 2015, 8:14pm UTC](https://community.cesium.com/t/problem-with-ellipsoid-cartographictocartesian/3308/3 "2015-11-12T20:14:32Z")
Your cartographic values should be in WGS84 radians, the values you provided are extremely large and look like they may be in a difference projection. If they are in Geographic or WebMercator, you can unproject them using the equivalent GeographicProjection and WebMercatorProjection objects in Cesium.