# gcp marking

**URL:** <https://community.pix4d.com/t/gcp-marking/6502>\
**Category:** PIX4Dmapper Questions/Troubleshooting\
**Created:** [May 9, 2018, 5:40am UTC](https://community.pix4d.com/t/gcp-marking/6502 "2018-05-09T05:40:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![MOHAN\_KUMAR](https://avatars.discourse-cdn.com/v4/letter/m/e8c25b/32.png) [@MOHAN\_KUMAR](https://community.pix4d.com/u/MOHAN_KUMAR)\
**Post date:** [May 9, 2018, 5:40am UTC](https://community.pix4d.com/t/gcp-marking/6502/1 "2018-05-09T05:40:06Z")

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hey guys

can we mark gcp on permanent structure which is 0.5 to 1 meter height?

thank you.

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**Author:** ![Margaux\_Couttet](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/margaux_couttet/32/400_2.png) [@Margaux\_Couttet](https://community.pix4d.com/u/Margaux_Couttet)\
**Post date:** [May 9, 2018, 12:43pm UTC](https://community.pix4d.com/t/gcp-marking/6502/2 "2018-05-09T12:43:31Z")

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Hi Mohan,

I am not sure to understand correctly your question, would you like to mark a GCP that has been placed at 0.5 to 1m height above the rest of the scene on your images?

If so, please note that you can perfectly do such a thing. To mark GCPs on your images please follow the instructions detailed in this [article](https://support.pix4d.com/hc/en-us/articles/202560039-How-to-add-import-GCPs-in-the-GCP-MTP-Manager).&nbsp;

You can also take note of the limitations of Pix4D processing images&nbsp;from a scene with height variation in this [article](https://support.pix4d.com/hc/en-us/articles/204656209-Image-Acquisition-Plan-for-Terrain-with-Height-Variations#gsc.tab=0).

I hope this helps,