# Export issue model and point cloud position

**URL:** <https://community.cesium.com/t/export-issue-model-and-point-cloud-position/43571>\
**Category:** Cesium ion\
**Created:** [October 6, 2025, 5:29pm UTC](https://community.cesium.com/t/export-issue-model-and-point-cloud-position/43571 "2025-10-06T17:29:52Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![A\_C](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/a_c/32/31502_2.png) [@A\_C](https://community.cesium.com/u/A_C)\
**Post date:** [October 6, 2025, 5:29pm UTC](https://community.cesium.com/t/export-issue-model-and-point-cloud-position/43571/1 "2025-10-06T17:29:52Z")

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Hi Team,

I’m experiencing a strange issue when exporting both a 3D model and a point cloud of the same object. They should share the same coordinate system, but after export the 3D model is perfectly aligned, while the point cloud appears shifted in Z as well as in XY. The export settings are identical and export from the same reality scan 2.0.1 project. I’ve attached some images to better show the problem.

 ![image](https://global.discourse-cdn.com/cesium/original/3X/6/d/6d1ae601703809affc0efc4048f21b34adcdb263.jpeg)

Thank you

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<div class="post-metadata">

**Author:** ![Fordi](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/fordi/32/23255_2.png) [@Fordi](https://community.cesium.com/u/Fordi)\
**Post date:** [October 6, 2025, 9:06pm UTC](https://community.cesium.com/t/export-issue-model-and-point-cloud-position/43571/2 "2025-10-06T21:06:12Z")

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I can try to help. Can you provide the asset IDs for the exported model?

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<div class="post-metadata">

**Author:** ![A\_C](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/a_c/32/31502_2.png) [@A\_C](https://community.cesium.com/u/A_C)\
**Post date:** [October 7, 2025, 8:40am UTC](https://community.cesium.com/t/export-issue-model-and-point-cloud-position/43571/3 "2025-10-07T08:40:18Z")

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sure

the 3dmodel is 3859178 coordinate system epsg 3004

the point cloud is 3860951 coordinate system epsg 3004

both are exported from Reality Scan 2.0.1 with the same parameters

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<div class="post-metadata">

**Author:** ![A\_C](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/a_c/32/31502_2.png) [@A\_C](https://community.cesium.com/u/A_C)\
**Post date:** [October 9, 2025, 4:39pm UTC](https://community.cesium.com/t/export-issue-model-and-point-cloud-position/43571/5 "2025-10-09T16:39:02Z")

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hello to everyone, any news?

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<div class="post-metadata">

**Author:** ![A\_C](https://sea2.discourse-cdn.com/cesium/user_avatar/community.cesium.com/a_c/32/31502_2.png) [@A\_C](https://community.cesium.com/u/A_C)\
**Post date:** [October 15, 2025, 8:26pm UTC](https://community.cesium.com/t/export-issue-model-and-point-cloud-position/43571/6 "2025-10-15T20:26:02Z")

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A small update: I tried another object, exported directly from Revit using the plugin with coordinates in EPSG:32632. The point cloud is also in the same coordinate system. However, I found out that most export tools don’t actually write the coordinate system information into the file header. So I injected the EPSG code into the LAZ file using PDAL.

Even though this reduced the misalignment, it didn’t eliminate it completely — there’s still a noticeable offset. In Revit, the point cloud and the BIM model are in the same position, with a maximum difference of about 3 cm, much smaller than what appears in the Cesium scene.

 ![image](https://global.discourse-cdn.com/cesium/original/3X/c/0/c08d6efb30c7dfcaba66b27daa64d90ba3cdcd6f.jpeg)