# Save the values of scalar filed u w together with the mesh Th and Th1 in a .vtk file
**URL:** https://community.freefem.org/t/save-the-values-of-scalar-filed-u-w-together-with-the-mesh-th-and-th1-in-a-vtk-file/2606
**Category:** General Discussion
**Created:** [July 17, 2023, 2:03am UTC](https://community.freefem.org/t/save-the-values-of-scalar-filed-u-w-together-with-the-mesh-th-and-th1-in-a-vtk-file/2606 "2023-07-17T02:03:38Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@HJGH](https://community.freefem.org/u/HJGH)
#### Post date: [July 17, 2023, 2:03am UTC](https://community.freefem.org/t/save-the-values-of-scalar-filed-u-w-together-with-the-mesh-th-and-th1-in-a-vtk-file/2606/1 "2023-07-17T02:03:38Z")
Dear FF++Users & Developers,
I was trying to save the values of scalar filed u w together with the mesh Th and Th1 in a .vtk file with
savevtk(“uw.vtu”,Th,u,Th1,w,dataname=“uw source”);
But that doesn’t seem to be possible, so I’d like to ask how this can be achieved.
Thank you!
---
### Author:  [@cmd](https://community.freefem.org/u/cmd)
#### Post date: [July 17, 2023, 6:52am UTC](https://community.freefem.org/t/save-the-values-of-scalar-filed-u-w-together-with-the-mesh-th-and-th1-in-a-vtk-file/2606/2 "2023-07-17T06:52:20Z")
Assuming `u` is defined on `Th` and `w` is defined on `Th1`, you need something like:
```auto
savevtk("filename1.vtu", Th, u, dataname = "u", order = 1);
savevtk("filename2.vtu", Th1, w, dataname = "w", order = 1);
```
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### Author:  [@HJGH](https://community.freefem.org/u/HJGH)
#### Post date: [July 17, 2023, 7:04am UTC](https://community.freefem.org/t/save-the-values-of-scalar-filed-u-w-together-with-the-mesh-th-and-th1-in-a-vtk-file/2606/3 "2023-07-17T07:04:50Z")
Thank you very much for your reply. But I want Th u and Th1 w to be stored in a .vtk file.
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### Author:  [@cmd](https://community.freefem.org/u/cmd)
#### Post date: [July 17, 2023, 8:05am UTC](https://community.freefem.org/t/save-the-values-of-scalar-filed-u-w-together-with-the-mesh-th-and-th1-in-a-vtk-file/2606/4 "2023-07-17T08:05:12Z")
Is there any particular reason for wanting a `.vtk` file? The `.vtk` format is deprecated, so you should use `.vtu`.
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### Author:  [@HJGH](https://community.freefem.org/u/HJGH)
#### Post date: [July 17, 2023, 8:25am UTC](https://community.freefem.org/t/save-the-values-of-scalar-filed-u-w-together-with-the-mesh-th-and-th1-in-a-vtk-file/2606/5 "2023-07-17T08:25:32Z")
Because I want to put the deformation of both rings in the same window for analysis, but Tecplot can’t do that.