# Exporting a ruler as an .obj file

**URL:** <https://discourse.slicer.org/t/exporting-a-ruler-as-an-obj-file/21548>\
**Category:** Support\
**Tags:** segmentation\
**Created:** [January 20, 2022, 3:27pm UTC](https://discourse.slicer.org/t/exporting-a-ruler-as-an-obj-file/21548 "2022-01-20T15:27:44Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![dayanjan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dayanjan/32/12889_2.png) [@dayanjan](https://discourse.slicer.org/u/dayanjan)\
**Post date:** [January 20, 2022, 3:27pm UTC](https://discourse.slicer.org/t/exporting-a-ruler-as-an-obj-file/21548/1 "2022-01-20T15:27:44Z")

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Hello Everyone,

I was playing with exporting segments as .obj files to visualize them in VR. As we loose exact dimensions when we export an .obj file, I was wondering if there is any way that we can export a ruler (or some type of measurement image) as a .obj file as well. That way, if you are visualizing multiple segments grouped together, then the ruler will allow a rough estimate of the dimensions. Any thoughts?

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [January 20, 2022, 9:58pm UTC](https://discourse.slicer.org/t/exporting-a-ruler-as-an-obj-file/21548/2 "2022-01-20T21:58:03Z")

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Maybe paint a sphere or disk with known radius in the corner?

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**Author:** ![dayanjan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/dayanjan/32/12889_2.png) [@dayanjan](https://discourse.slicer.org/u/dayanjan)\
**Post date:** [January 27, 2022, 7:25pm UTC](https://discourse.slicer.org/t/exporting-a-ruler-as-an-obj-file/21548/3 "2022-01-27T19:25:30Z")

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Thanks Steve. I will try this out