# Contour lines with altitude information
**URL:** https://community.pix4d.com/t/contour-lines-with-altitude-information/20765
**Category:** PIX4Dsurvey
**Created:** [December 10, 2021, 11:14am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765 "2021-12-10T11:14:12Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@MiguelToril](https://community.pix4d.com/u/MiguelToril)
#### Post date: [December 10, 2021, 11:14am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/1 "2021-12-10T11:14:12Z")
Hello all;
I am new to _PIX4Dsurvey_ and I have just started to work with it a few days ago.
I have imported into _PIX4Dsurvey_ a point cloud -previously generated with _PIX4Dmapper_- from which I have extracted the countour lines as shape (.shp) file. After importing it into _QGIS_ I could see that those contour lines generated by _PIX4Dsurvey_ **do NOT** contain the altitude information. As an example, you can see in the attached picture that, another contour lines file generated directly from _PIX4Dmapper_ actually include the information of the altitude.
How can I do it with _PIX4Dsurvery_ or what am I missing?
Thanks in advance to everyone.
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### Author:  [@Daniele\_Lecci](https://community.pix4d.com/u/Daniele_Lecci)
#### Post date: [December 14, 2021, 8:54am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/2 "2021-12-14T08:54:23Z")
Hello Miguel,
Thank you for your message.
Note that in the contour lines created by PIX4Dsurvey, the elevation is already in the geometry.
However, you can proceed with this workaround in QGIS:
Use the Field Calculator as shown below using the expression `z_max($geometry)` for calculating a new field called Elevation.
Note that this is a short-term solution.
In the longer term, the PIX4Dsurvey is working on a better _by default_ visibility for all GIS software.
I hope this helps.
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### Author:  [@MiguelToril](https://community.pix4d.com/u/MiguelToril)
#### Post date: [December 14, 2021, 10:38am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/3 "2021-12-14T10:38:46Z")
Thank you @Daniele_Lecci, this is exactly the info I needed!
I also hope we can see in the future this features being improved on PIX4Dsurvey!
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### Author:  [@Daniele\_Lecci](https://community.pix4d.com/u/Daniele_Lecci)
#### Post date: [December 14, 2021, 10:43am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/4 "2021-12-14T10:43:19Z")
Hi Miguel,
I’m happy to hear this was the information you needed.
The PIX4Dsurvey is informed about this and they are working on refining exported data. However, I can’t provide a release date, unfortunately.
Have a great day
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### Author:  [@anschlei](https://community.pix4d.com/u/anschlei)
#### Post date: [May 4, 2023, 8:23pm UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/5 "2023-05-04T20:23:57Z")
Hello Pix4Dsupport,
is there a change to this topic or does is still not work?
I would love to push/vote this topic.
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### Author:  [@MiguelToril](https://community.pix4d.com/u/MiguelToril)
#### Post date: [May 5, 2023, 6:09am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/6 "2023-05-05T06:09:33Z")
@anschlei, I haven’t work more with Pix4D since a few month. I’m currently using other point cloud processing software. However, I agree with you, this topic should be pushed. Pix4DSurvey is a great tool and if I need it back in the future I hope this feature will be included.
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### Author:  [@Daniele\_Lecci](https://community.pix4d.com/u/Daniele_Lecci)
#### Post date: [May 5, 2023, 10:18am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/7 "2023-05-05T10:18:13Z")
Hi @anschlei, hi @MiguelToril,
Please add your vote and your feedback request in this thread:
> [@Elevation Information of the Contour lines needs to be displayed.](https://community.pix4d.com/t/elevation-information-of-the-contour-lines-needs-to-be-displayed/25220):
>
> Hi, The contour lines when exported(into shp file) from Pix4D survey that are generated from DSM, doesn’t contain the elevation information. How do i get that info so i can work with them in Global Mapper to smoothen the contours etc…
Cheers!
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### Author:  [@xzamora](https://community.pix4d.com/u/xzamora)
#### Post date: [June 24, 2023, 6:08am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/8 "2023-06-24T06:08:19Z")
What software are you working with now?
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### Author:  [@Rosana\_Lin](https://community.pix4d.com/u/Rosana_Lin)
#### Post date: [June 29, 2023, 7:22am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/9 "2023-06-29T07:22:17Z")
Hi @MiguelToril !
Also curious on what is the other point cloud processing software you mentioned. 🙂
Best,
Rosana (she/her)
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### Author:  [@MiguelToril](https://community.pix4d.com/u/MiguelToril)
#### Post date: [June 29, 2023, 7:34am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/10 "2023-06-29T07:34:49Z")
We are currently working with POINT CLOUD EDITOR, from Aplitop ([https://www.aplitop.com/software/tcp-pointcloud-editor](https://www.aplitop.com/software/tcp-pointcloud-editor)).
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### Author:  [@Rosana\_Lin](https://community.pix4d.com/u/Rosana_Lin)
#### Post date: [June 29, 2023, 7:45am UTC](https://community.pix4d.com/t/contour-lines-with-altitude-information/20765/11 "2023-06-29T07:45:22Z")
Hi @MiguelToril ,
Thank you very much for sharing! We will take a look!
Best,
Rosana (she/her)