# How to use 'smooth' filter for a Structured (Curvilinear) Grid data

**URL:** https://discourse.paraview.org/t/how-to-use-smooth-filter-for-a-structured-curvilinear-grid-data/6052
**Category:** ParaView Support
**Created:** [December 14, 2020, 8:04am UTC](https://discourse.paraview.org/t/how-to-use-smooth-filter-for-a-structured-curvilinear-grid-data/6052 "2020-12-14T08:04:30Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![rupak](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/r/f07891/32.png) [@rupak](https://discourse.paraview.org/u/rupak)
#### Post date: [December 14, 2020, 8:04am UTC](https://discourse.paraview.org/t/how-to-use-smooth-filter-for-a-structured-curvilinear-grid-data/6052/1 "2020-12-14T08:04:30Z")

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I have a Structured (Curvilinear) Grid data (32 X 64 X 20) in the form of a helix. I need to smooth it. Is there any existing filter or any tool to do this?

 ![non-smooth-helix-info](https://discourse.paraview.org/uploads/default/original/2X/9/9989446f344a6ab549704ef8ba32d5b35e84b6b4.png)  
 ![non-smooth-helix](https://discourse.paraview.org/uploads/default/original/2X/1/12513cd4e4852836e5db1dd477407962a713fc97.png)