# i have 2 question

**URL:** <https://discourse.slicer.org/t/i-have-2-question/1632>\
**Category:** Support\
**Created:** [December 11, 2017, 7:52am UTC](https://discourse.slicer.org/t/i-have-2-question/1632 "2017-12-11T07:52:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![quanghieuci](https://avatars.discourse-cdn.com/v4/letter/q/9dc877/32.png) [@quanghieuci](https://discourse.slicer.org/u/quanghieuci)\
**Post date:** [December 11, 2017, 7:52am UTC](https://discourse.slicer.org/t/i-have-2-question/1632/1 "2017-12-11T07:52:00Z")

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hi  
Is there a way to delete lines after creating them? I would think there is one but I cannot seem to find it.

and

Is there a way to make circles or essentially non-linear lines with the tool?

thx all

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<div class="post-metadata">

**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:** [December 11, 2017, 4:50pm UTC](https://discourse.slicer.org/t/i-have-2-question/1632/2 "2017-12-11T16:50:09Z")

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You can use Data module or Annotations module to delete rulers.

For drawing circles, you need to use some Python scripting - see this example: [https://www.slicer.org/wiki/Documentation/Nightly/ScriptRepository#Manipulating\_objects\_in\_the\_slice\_viewer](https://www.slicer.org/wiki/Documentation/Nightly/ScriptRepository#Manipulating_objects_in_the_slice_viewer)