# NetCDF UGRID Reader Coloring Option Not Showing Every Arrays Available

**URL:** https://discourse.paraview.org/t/netcdf-ugrid-reader-coloring-option-not-showing-every-arrays-available/15380
**Category:** ParaView Support
**Created:** [September 11, 2024, 6:48pm UTC](https://discourse.paraview.org/t/netcdf-ugrid-reader-coloring-option-not-showing-every-arrays-available/15380 "2024-09-11T18:48:06Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![stlee](https://discourse.paraview.org/user_avatar/discourse.paraview.org/stlee/32/15154_2.png) [@stlee](https://discourse.paraview.org/u/stlee)
#### Post date: [September 11, 2024, 6:48pm UTC](https://discourse.paraview.org/t/netcdf-ugrid-reader-coloring-option-not-showing-every-arrays-available/15380/1 "2024-09-11T18:48:06Z")

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Hi,

I have a writer that writes EFDC model data out to a NetCDF file following the UGRID convention.  
I can open this file with the UGRID reader in ParaView 5.12.0.  
The “Cell Arrays” also list all the variables I have in the file.

However, the “Coloring” option only shows a few variables I have. (BELV: Bed elevation, HP: Water Depth, WSEL: Water surface elevation, cell\_id: cell id)

I know some variables I have that include multiple vertical layer results might not yet supported by ParaView (i.e: ‘U’, ‘V’, ‘W’…).  
But variables like ‘wind\_x’ and ‘wind\_y’ (eastward, northward wind) have the same array dimension as ‘BELV’, ‘HP’, and ‘WSEL’, which are not shown in the coloring option either.

I was expecting at least I could see animation of each cell value changing over time for arrays having the same dimension.  
But so far I can only do that for ‘BELV’, ‘HP’ and ‘WSEL’.

Did I do something wrong when writing out my NetCDF UGRID file?

I would also like to know how many dimensions the current ParaView NetCDF UGRID reader can read in for ParaView to display.  
For example, ParaView can read and display a 2D plane result that changes over time.  
But what about data with additional z-dimension?  
Or even more dimensions representing different classes of simulated substance?  
Are there other alternative paths you recommend so ParaView can display them?

Here is a screenshot showing ParaView recognizes all available variables, but the coloring option only shows a few.

 ![image](https://discourse.paraview.org/uploads/default/original/2X/4/4d9fc177a6a2117fcafbf2c444c97482f5e7c466.png)

The screenshots below are information about this file. I’m using Python xarray to read it.

 ![image](https://discourse.paraview.org/uploads/default/original/2X/9/94fe5a7a7a524ad4e48aa2a9fb92be8d5225ee71.png)  
 ![image](https://discourse.paraview.org/uploads/default/original/2X/f/f57efcebf22282bf92e2064e7632861e12452625.png)

Here is the link to download the NetCDF file.  
[https://www.dropbox.com/t/zc97FdwA1gs5diHM](https://www.dropbox.com/t/zc97FdwA1gs5diHM)

Thank you.