# Multiple Polygons Visualization XML format

**URL:** https://discourse.paraview.org/t/multiple-polygons-visualization-xml-format/3408
**Category:** ParaView Support
**Tags:** vtk
**Created:** [January 27, 2020, 3:24am UTC](https://discourse.paraview.org/t/multiple-polygons-visualization-xml-format/3408 "2020-01-27T03:24:41Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Superbee](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/b782af/32.png) [@Superbee](https://discourse.paraview.org/u/Superbee)
#### Post date: [January 27, 2020, 3:24am UTC](https://discourse.paraview.org/t/multiple-polygons-visualization-xml-format/3408/1 "2020-01-27T03:24:41Z")

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Hi All,

I would like to visualize multiple polygons in ParaView (see figure attached). I have the position of all vertices on a polygon surface and I want to write them in a VTK file (XML format). Can anyone share any related example/tutorial/document? Thanks!

![multi polygons xml](https://discourse.paraview.org/uploads/default/original/2X/1/1f96a2bb3fc85d567449abfca67cf752bffa58a8.jpeg)

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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: [January 27, 2020, 3:35am UTC](https://discourse.paraview.org/t/multiple-polygons-visualization-xml-format/3408/2 "2020-01-27T03:35:11Z")

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Here is the documentation on how to write XML vtk file directly.  
[https://lorensen.github.io/VTKExamples/site/VTKFileFormats/](https://lorensen.github.io/VTKExamples/site/VTKFileFormats/)