# How to correctly position 3D models when tiling with Cesium ion

**URL:** <https://community.cesium.com/t/how-to-correctly-position-3d-models-when-tiling-with-cesium-ion/10498>\
**Category:** General\
**Tags:** documentation, cesium-ion-request\
**Created:** [August 6, 2020, 5:11pm UTC](https://community.cesium.com/t/how-to-correctly-position-3d-models-when-tiling-with-cesium-ion/10498 "2020-08-06T17:11:46Z")\
**Posts on this page:** 1\
**Showing post:** 1

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**Author:** ![omar](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/omar/32/1999_2.png) [@omar](https://community.cesium.com/u/omar)\
**Post date:** [August 6, 2020, 5:11pm UTC](https://community.cesium.com/t/how-to-correctly-position-3d-models-when-tiling-with-cesium-ion/10498/1 "2020-08-06T17:11:46Z")

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_Moving this issue from: [https://github.com/CesiumGS/cesium-ion-community/issues/282](https://github.com/CesiumGS/cesium-ion-community/issues/282)._

The goal is to position a 3D Tileset on Cesium ion using the source model’s origin. For example, your model may look like this (screenshot from Blender):

 ![image](https://global.discourse-cdn.com/cesium/original/2X/3/3fe10d530e616c83811c4cab76b443b90ade0583.jpeg)

And you know what that lat/lon/heght this origin (0, 0, 0) is supposed to be at. So you upload this model to Cesium ion, enter the lat/lon in the “Adjust tileset” tool, but find that the position is incorrect. This is because Cesium ion will create a new origin at the center of the geometry:

 ![image](https://global.discourse-cdn.com/cesium/original/2X/1/19d0804ab17aa706b987e811fb7205f3878be989.jpeg)

In order to get this to work, you would need to use the Cesium ion REST API which allows you to pass a lat/lon/height when uploading the model. This will correctly position the model’s origin at the given cartographic world position.

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_[View the full topic](https://community.cesium.com/t/how-to-correctly-position-3d-models-when-tiling-with-cesium-ion/10498)._