# Data NOT present in all pieces (unstructured grid) is not shown.
**URL:** https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199
**Category:** ParaView Support
**Tags:** vtk
**Created:** [May 11, 2021, 2:19am UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199 "2021-05-11T02:19:49Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@user223](https://discourse.paraview.org/u/user223)
#### Post date: [May 11, 2021, 2:19am UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199/1 "2021-05-11T02:19:49Z")
I have an unstructured grid with multiple pieces. A cell data (“damage” for example) exists for few of these pieces but not for others. Now, Paraview won’t show it in the list of data viewable (only the data common to all pieces are shown).
What I want is the geometry of the other pieces missing the data to be shown with some default color (maybe gray). Any way I can do that?
I am writing the .vtu file myself from an Abaqus .odb file.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 11, 2021, 8:07am UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199/2 "2021-05-11T08:07:52Z")
please share your file
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### Author:  [@user223](https://discourse.paraview.org/u/user223)
#### Post date: [May 11, 2021, 2:09pm UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199/3 "2021-05-11T14:09:03Z")
A fairly minimal example. It has 3 pieces and the data requested was “SDEG” (“Damage”), which exists only for one of the pieces . The data shows up if I have that single piece only.
[3Cy\_Step-7\_Frame200.vtu](https://discourse.paraview.org/uploads/short-url/c94wq6zyDSVsbl87yynmeHSZ9f3.vtu) (3.4 MB)
Thanks!
Edit: Ignore the few weird cells. They are to be filtered out down the pipeline.
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 11, 2021, 3:06pm UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199/4 "2021-05-11T15:06:49Z")
Afaik. a .vtu file cannot contains multiples pieces. Maybe you want to save to a multiblock format or to a pvtu format ?
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### Author:  [@user223](https://discourse.paraview.org/u/user223)
#### Post date: [May 11, 2021, 3:16pm UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199/5 "2021-05-11T15:16:14Z")
Oh! The .vtu format with multiple pieces did work sometimes. It gave default value to pieces missing the particular data. Maybe, it was a chance thing. I would like to workaround this issue, retaining the .vtu format if possible.
If not, can you guide me towards a multiblock format example. Basically, my geometry consists of different parts with different datasets attached to them (some present in all, others not)
Thanks!
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### Author:  [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 11, 2021, 3:19pm UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199/6 "2021-05-11T15:19:22Z")
Just use the “group dataset” in ParaView to create a multiblock and save the results.
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### Author:  [@user223](https://discourse.paraview.org/u/user223)
#### Post date: [May 11, 2021, 3:23pm UTC](https://discourse.paraview.org/t/data-not-present-in-all-pieces-unstructured-grid-is-not-shown/7199/7 "2021-05-11T15:23:21Z")
To get the example you mean. Will do that.
In the meantime I will try to figure out under what conditions the .vtu format works as well.