# Line Width for a centerline model has no effect in the Slice Display section

**URL:** <https://discourse.slicer.org/t/line-width-for-a-centerline-model-has-no-effect-in-the-slice-display-section/20572>\
**Category:** Support\
**Created:** [November 10, 2021, 9:22pm UTC](https://discourse.slicer.org/t/line-width-for-a-centerline-model-has-no-effect-in-the-slice-display-section/20572 "2021-11-10T21:22:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![torquil](https://avatars.discourse-cdn.com/v4/letter/t/e79b87/32.png) [@torquil](https://discourse.slicer.org/u/torquil)\
**Post date:** [November 10, 2021, 9:22pm UTC](https://discourse.slicer.org/t/line-width-for-a-centerline-model-has-no-effect-in-the-slice-display-section/20572/1 "2021-11-10T21:22:03Z")

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I have used the Extract Centerline module to generate a model. I would like to increase its thickness when showing it in the 2d slice view, but when go to its properties, and select Display - Slice Display, the setting for line width has no effect. I have selected Mode: intersection, but the “line width” has no effect. The one-dimensional curve is still showing as a single pixel, even when increasing the setting up to 10px. In the “3D Display” section, the line width works, but not in the “Slice display” section.

Btw, I also imported the centerline model into a segmentation, and then tried the “Margin: grow” segmentation tool on it, but nothing happens to the thickness of the curve then either. The “Margin: grow” tool has always worked for me before. Is there a problem with it when it acts on a “one-dimensional” structure resulting from importing a centerline model into a segmentation?

I’m using todays 3D Slicer preview release on Linux.

Best regards,  
Torquil Sørensen, Norway

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**Author:** ![Nate\_W](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/nate_w/32/67936_2.png) [@Nate\_W](https://discourse.slicer.org/u/Nate_W)\
**Post date:** [January 18, 2024, 10:12pm UTC](https://discourse.slicer.org/t/line-width-for-a-centerline-model-has-no-effect-in-the-slice-display-section/20572/2 "2024-01-18T22:12:38Z")

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Hey, ever figure it out by chance? I’m having the same issue