# vthb file structure

**URL:** https://discourse.paraview.org/t/vthb-file-structure/7224
**Category:** ParaView Support
**Tags:** vtk
**Created:** [May 13, 2021, 3:33pm UTC](https://discourse.paraview.org/t/vthb-file-structure/7224 "2021-05-13T15:33:55Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [May 14, 2021, 9:07am UTC](https://discourse.paraview.org/t/vthb-file-structure/7224/4 "2021-05-14T09:07:46Z")

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> [@henry2004y](#):
>
> array to specify whether or not a cell has been refined?

Yes, non refined cell should still be present in the refined layer but set as blank.

> I still need to provide some data to these cells even if they are refined right, as been shown here by the `Gaussian-Pulse` Float64 array?

Absolutely.

This is the tradeoff of overlapping vs non-overlapping AMR.

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