# Determining number Of Grid Nodes
**URL:** https://discourse.itk.org/t/determining-number-of-grid-nodes/2721
**Category:** Beginner Questions
**Created:** [February 13, 2020, 8:48pm UTC](https://discourse.itk.org/t/determining-number-of-grid-nodes/2721 "2020-02-13T20:48:26Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@ShaneKirkbride](https://discourse.itk.org/u/ShaneKirkbride)
#### Post date: [February 13, 2020, 8:48pm UTC](https://discourse.itk.org/t/determining-number-of-grid-nodes/2721/1 "2020-02-13T20:48:27Z")
How is the number of grid nodes in one dimension determined?
Thanks,
~Shane
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### Author:  [@dzenanz](https://discourse.itk.org/u/dzenanz)
#### Post date: [February 13, 2020, 11:04pm UTC](https://discourse.itk.org/t/determining-number-of-grid-nodes/2721/2 "2020-02-13T23:04:13Z")
You need to describe your problem in much more detail.
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### Author:  [@ShaneKirkbride](https://discourse.itk.org/u/ShaneKirkbride)
#### Post date: [February 13, 2020, 11:14pm UTC](https://discourse.itk.org/t/determining-number-of-grid-nodes/2721/3 "2020-02-13T23:14:43Z")
Hi Dezenan,
To be clear in DeformableRegistration examples 8,7,6,4 and 15 (and probably a few others) there is a numberOfGridNodesInOneDimension defined. This number varies from 4-8. How was this number determined? Is there some reference I can look at that tells me how to pick this number?
Thanks,
~Shane
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### Author:  [@dzenanz](https://discourse.itk.org/u/dzenanz)
#### Post date: [February 14, 2020, 1:32pm UTC](https://discourse.itk.org/t/determining-number-of-grid-nodes/2721/4 "2020-02-14T13:32:11Z")
That number depends on how much detail your transform needs to have. Take a look at this [FAQ](https://www.slicer.org/wiki/Documentation/Nightly/FAQ/Registration#Can_I_register_2D_images_with_Slicer.3F), it has a picture of the grid.