# vtkGlyphSource2D
**URL:** https://discourse.paraview.org/t/vtkglyphsource2d/10176
**Category:** ParaView Support
**Tags:** vtk
**Created:** [August 22, 2022, 8:41am UTC](https://discourse.paraview.org/t/vtkglyphsource2d/10176 "2022-08-22T08:41:53Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@nabilyounes](https://discourse.paraview.org/u/nabilyounes)
#### Post date: [August 22, 2022, 8:41am UTC](https://discourse.paraview.org/t/vtkglyphsource2d/10176/1 "2022-08-22T08:41:53Z")
Hello everyone,
I am facing a small problem. I am trying to simulate granular assemblies in 2D. I am using 2D Glyph, circles, filled! The problem is that the disks I am getting are somehow octagonal. I have seen that they are octagonal because they are defined only by 8 points. Is there any clever way to increase the number of points to make these “octagonal” real disks?
Hope my message was clear, thank you in advance.
Nabil
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### Author:  [@nicolas.vuaille](https://discourse.paraview.org/u/nicolas.vuaille)
#### Post date: [August 22, 2022, 9:00am UTC](https://discourse.paraview.org/t/vtkglyphsource2d/10176/2 "2022-08-22T09:00:12Z")
If you are coding pure vtk, please go to the [vtk forum](https://discourse.vtk.org/).
If you are using ParaView, are you using the `Glyph` source or the `3D Glyph` representation ?
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### Author:  [@nabilyounes](https://discourse.paraview.org/u/nabilyounes)
#### Post date: [August 22, 2022, 11:09am UTC](https://discourse.paraview.org/t/vtkglyphsource2d/10176/3 "2022-08-22T11:09:38Z")
Hello Nicolas, thank you for your reply
I am using Glyph3D
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### Author:  [@nicolas.vuaille](https://discourse.paraview.org/u/nicolas.vuaille)
#### Post date: [August 22, 2022, 1:11pm UTC](https://discourse.paraview.org/t/vtkglyphsource2d/10176/4 "2022-08-22T13:11:04Z")
It seems that you cannot control the circle resolution directly.
So what you need is:
- create a `Disk` from the `Source` menu. Setup the resolution you want and maybe other properties (radius will not matter here)
- on your dataset, apply the `Glyph with Custom Source` filter, and use your disk as `Glyph Source`
- **OR** use the `3D Glyph` representation and instead of `2D glyph`, select `pipeline connection` and choose your disk