# The map lay down after reoptimization

**URL:** <https://community.pix4d.com/t/the-map-lay-down-after-reoptimization/14712>\
**Category:** PIX4Dmapper Questions/Troubleshooting\
**Created:** [September 25, 2020, 3:00pm UTC](https://community.pix4d.com/t/the-map-lay-down-after-reoptimization/14712 "2020-09-25T15:00:08Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![kazuma](https://avatars.discourse-cdn.com/v4/letter/k/a6a055/32.png) [@kazuma](https://community.pix4d.com/u/kazuma)\
**Post date:** [September 25, 2020, 3:00pm UTC](https://community.pix4d.com/t/the-map-lay-down-after-reoptimization/14712/1 "2020-09-25T15:00:08Z")

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Hey, guys,  
I did the initial processing with Pix4dmapper.  
It is normal at that point.  
Then I set up GCPs.  
When reoptimization is performed,  
The map was tilted almost 90 degrees at right angles.  
What is the cause?

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**Author:** ![joan.cano](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/joan.cano/32/1886_2.png) [@joan.cano](https://community.pix4d.com/u/joan.cano)\
**Post date:** [September 25, 2020, 10:49pm UTC](https://community.pix4d.com/t/the-map-lay-down-after-reoptimization/14712/2 "2020-09-25T22:49:06Z")

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Are you sure you have imported the x, y, z axes right? 🙂  
Can you share the report?

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**Author:** ![kazuma](https://avatars.discourse-cdn.com/v4/letter/k/a6a055/32.png) [@kazuma](https://community.pix4d.com/u/kazuma)\
**Post date:** [September 28, 2020, 12:17am UTC](https://community.pix4d.com/t/the-map-lay-down-after-reoptimization/14712/3 "2020-09-28T00:17:27Z")

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High, JOAN,  
I imported it exactly.

However, no matter how many times I tried, the result did not change.

Share the report.

[1\_report.pdf](https://community.pix4d.com/uploads/short-url/a2SSYr1ymxLYL7reo1p5ZRSBFwp.pdf) (751.5 KB)

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**Author:** ![joan.cano](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/joan.cano/32/1886_2.png) [@joan.cano](https://community.pix4d.com/u/joan.cano)\
**Post date:** [September 28, 2020, 9:50pm UTC](https://community.pix4d.com/t/the-map-lay-down-after-reoptimization/14712/4 "2020-09-28T21:50:47Z")

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Can you try to apply this template and share the results? [P4RTK.zip](https://community.pix4d.com/uploads/short-url/zeNALuUt90Okpp4F1knEydOpwJV.zip) (1.8 KB).

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**Author:** ![kazuma](https://avatars.discourse-cdn.com/v4/letter/k/a6a055/32.png) [@kazuma](https://community.pix4d.com/u/kazuma)\
**Post date:** [October 16, 2020, 12:10am UTC](https://community.pix4d.com/t/the-map-lay-down-after-reoptimization/14712/5 "2020-10-16T00:10:53Z")

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Thank you for your reply.  
I gave up and decided to solve it with Pix4dmapper.  
I decided to edit the point cloud data on the point cloud processing software.  
I’m sorry.  
We thank you for your cooperation.