# Draw Tube cannot be used normally

**URL:** <https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611>\
**Category:** Support\
**Created:** [January 21, 2021, 9:11am UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611 "2021-01-21T09:11:45Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![slicer365](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/slicer365/32/67549_2.png) [@slicer365](https://discourse.slicer.org/u/slicer365)\
**Post date:** [January 21, 2021, 9:11am UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611/1 "2021-01-21T09:11:45Z")

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My friends have installed extension plug-ins. When they use the Draw tube function in segment editor, the arrow is always gray and cannot be used. The software is version 4.1120200930.! This is my software picture ,it is normal.

 ![捕获](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/0/a0522bb3af2493a5ac446f96e0116ce917c84bce.jpeg)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [January 21, 2021, 4:02pm UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611/2 "2021-01-21T16:02:12Z")

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Do you see any errors in the application log? (menu: Help / Report a bug)

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**Author:** ![cyufu](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cyufu/32/1779_2.png) [@cyufu](https://discourse.slicer.org/u/cyufu)\
**Post date:** [January 22, 2021, 8:00am UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611/4 "2021-01-22T08:00:34Z")

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MarkupsToModel is not installed correctly.

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**Author:** ![Hamid](https://avatars.discourse-cdn.com/v4/letter/h/5fc32e/32.png) [@Hamid](https://discourse.slicer.org/u/Hamid)\
**Post date:** [April 15, 2021, 3:25pm UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611/5 "2021-04-15T15:25:58Z")

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which extension should I install to have “Draw tube” module? Thanks

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**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [April 15, 2021, 4:05pm UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611/6 "2021-04-15T16:05:40Z")

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SegmentEditorExtraEffects

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**Author:** ![Hamid](https://avatars.discourse-cdn.com/v4/letter/h/5fc32e/32.png) [@Hamid](https://discourse.slicer.org/u/Hamid)\
**Post date:** [April 15, 2021, 4:21pm UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611/7 "2021-04-15T16:21:54Z")

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Thanks alot cpinter!  
Is this the efficient tool for creating the curve tube? I tried to make a tube but it seems the outer wall is not smooth!(Hexa or somthing like that)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [May 2, 2021, 1:25pm UTC](https://discourse.slicer.org/t/draw-tube-cannot-be-used-normally/15611/8 "2021-05-02T13:25:57Z")

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The tube is represented as a binary labelmap during segmentation editing. You can specify any resolution that your computer can handle.

If you want to represent curves as mesh then you can use curves Markups module.