# Markups curve in 2D

**URL:** <https://discourse.slicer.org/t/markups-curve-in-2d/31444>\
**Category:** Support\
**Created:** [August 30, 2023, 9:44am UTC](https://discourse.slicer.org/t/markups-curve-in-2d/31444 "2023-08-30T09:44:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![M111](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/m111/32/67305_2.png) [@M111](https://discourse.slicer.org/u/M111)\
**Post date:** [August 30, 2023, 9:44am UTC](https://discourse.slicer.org/t/markups-curve-in-2d/31444/1 "2023-08-30T09:44:47Z")

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Hello everyone.

I am trying to draw a Markups curve in 2D ( a plane curve). Is it possible to constrain Slicer 3D to draw the curve in 2D instead of 3D? Thanks.

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**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [August 30, 2023, 5:22pm UTC](https://discourse.slicer.org/t/markups-curve-in-2d/31444/2 "2023-08-30T17:22:35Z")

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Everything in Slicer is in 3D (hence 3D Slicer). Having said that if you draw the curve in a slice view, one of the coordinates (depending on the which view you choose) will be fixed, effectively being a 2D curve (with 3 coordinates).

Why do you need to draw your curve 2D?

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<div class="post-metadata">

**Author:** ![M111](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/m111/32/67305_2.png) [@M111](https://discourse.slicer.org/u/M111)\
**Post date:** [August 31, 2023, 5:40pm UTC](https://discourse.slicer.org/t/markups-curve-in-2d/31444/3 "2023-08-31T17:40:21Z")

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Thank you for your response. I am new to this software. I need to perform a 2D cut from a 3D object and then export it to cut it later in a laser cutting machine. Thanks