# Measure the altitude , determine height

**URL:** <https://community.pix4d.com/t/measure-the-altitude-determine-height/4027>\
**Category:** PIX4Dmapper Questions/Troubleshooting\
**Created:** [September 21, 2017, 6:34pm UTC](https://community.pix4d.com/t/measure-the-altitude-determine-height/4027 "2017-09-21T18:34:27Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Stojan\_Makedonski](https://avatars.discourse-cdn.com/v4/letter/s/bbe5ce/32.png) [@Stojan\_Makedonski](https://community.pix4d.com/u/Stojan_Makedonski)\
**Post date:** [September 21, 2017, 6:34pm UTC](https://community.pix4d.com/t/measure-the-altitude-determine-height/4027/1 "2017-09-21T18:34:27Z")

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Hello everybody ,

&nbsp;

I have made a 3d map of my plowed field and I want to determine the altitude of certain points of the field . I need accurate coordinates beside the DSM model of some points . And also ,can I measure the slope between&nbsp; 2 selected points.

Best regards

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**Author:** ![Pierangelo\_Rothenbuhler](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/pierangelo_rothenbuhler/32/2439_2.png) [@Pierangelo\_Rothenbuhler](https://community.pix4d.com/u/Pierangelo_Rothenbuhler)\
**Post date:** [September 22, 2017, 12:57pm UTC](https://community.pix4d.com/t/measure-the-altitude-determine-height/4027/2 "2017-09-22T12:57:26Z")

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Hi,&nbsp;

You can check the coordinates of a specific point of your field in the rayCloud view. Either you can select a pixel of the point cloud and check its coordinates on the right hand side as below:&nbsp;  
  
Or you could create a Manual Tie Point (MTP) at a specific point and then check its computed positions (once you have Process \> Reoptimize the project):  
  
As for the slope, you could use polylines ([https://support.pix4d.com/hc/en-us/articles/202560309](https://support.pix4d.com/hc/en-us/articles/202560309)) to make measurements and deduce the slope from it, but there is no tool made to directly measure the slope.&nbsp;

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**Author:** ![ciprianpixddemo](https://avatars.discourse-cdn.com/v4/letter/c/f19dbf/32.png) [@ciprianpixddemo](https://community.pix4d.com/u/ciprianpixddemo)\
**Post date:** [May 28, 2022, 4:19am UTC](https://community.pix4d.com/t/measure-the-altitude-determine-height/4027/3 "2022-05-28T04:19:48Z")

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Hi,

Neither option gives you the ability to get the height for a SPECIFIC point, as in input some known coordinates, and obtain the computed altitude (Z).  
Is there a way to do that?

The specific application is to find out if a point in project 1 @ time 0 has moved on z axis and by how much in project 2 @time 1.

Of course an option to export multiple desired points (MTP) from project 1 and from project 2 would be very helpful in order to to further process the values , but in MTP Manager the “export GCPs” button is greyed out.

Thank you,  
Ciprian

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**Author:** ![Mike\_K](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/mike_k/32/4697_2.png) [@Mike\_K](https://community.pix4d.com/u/Mike_K)\
**Post date:** [May 31, 2022, 8:56pm UTC](https://community.pix4d.com/t/measure-the-altitude-determine-height/4027/4 "2022-05-31T20:56:17Z")

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Hello,  
I think you might want to perform this task in a third party software. You will have more control over how you compare the points.