# Getting coronal view in each iteration

**URL:** https://discourse.itk.org/t/getting-coronal-view-in-each-iteration/2912
**Category:** Beginner Questions
**Created:** [April 8, 2020, 8:25pm UTC](https://discourse.itk.org/t/getting-coronal-view-in-each-iteration/2912 "2020-04-08T20:25:52Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![basal](https://discourse.itk.org/letter_avatar_proxy/v4/letter/b/a8b319/32.png) [@basal](https://discourse.itk.org/u/basal)
#### Post date: [April 8, 2020, 8:25pm UTC](https://discourse.itk.org/t/getting-coronal-view-in-each-iteration/2912/1 "2020-04-08T20:25:53Z")

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Hi,  
I want to go through all pixels in coronal plane on the 3D image and use sliceiterator. I was wondering how I can get coronal plane in each iteration for each slice?  
For instance, does the following code give me the coronal slice?  
Sit2.SetFirstDirection(2);  
Sit2.SetSecondDirection(0);

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<div class="post-metadata">

### Author: ![dzenanz](https://discourse.itk.org/user_avatar/discourse.itk.org/dzenanz/32/1093_2.png) [@dzenanz](https://discourse.itk.org/u/dzenanz)
#### Post date: [April 8, 2020, 9:44pm UTC](https://discourse.itk.org/t/getting-coronal-view-in-each-iteration/2912/2 "2020-04-08T21:44:15Z")

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Assuming identity direction matrix, it should. But I expect that iterating like that would be slower than iterating along first index as direction 0:

```auto
Sit2.SetFirstDirection(0);
Sit2.SetSecondDirection(2);

```