# delete current volume and switch next volume.

**URL:** <https://discourse.slicer.org/t/delete-current-volume-and-switch-next-volume/29138>\
**Category:** Development\
**Created:** [April 26, 2023, 12:01pm UTC](https://discourse.slicer.org/t/delete-current-volume-and-switch-next-volume/29138 "2023-04-26T12:01:10Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Benjamin-JZ](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/benjamin-jz/32/65776_2.png) [@Benjamin-JZ](https://discourse.slicer.org/u/Benjamin-JZ)\
**Post date:** [April 26, 2023, 12:01pm UTC](https://discourse.slicer.org/t/delete-current-volume-and-switch-next-volume/29138/1 "2023-04-26T12:01:10Z")

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I want make a button for something,I need to delete current volume in my button signal slot.how can i do that?

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**Author:** ![pearsonm](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pearsonm/32/18514_2.png) [@pearsonm](https://discourse.slicer.org/u/pearsonm)\
**Post date:** [April 26, 2023, 11:38pm UTC](https://discourse.slicer.org/t/delete-current-volume-and-switch-next-volume/29138/2 "2023-04-26T23:38:48Z")

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Do you mean a single volume or the whole scene?

For the scene you can call  
`slicer.mrmlScene.Clear()`

For a single node you can call  
`slicer.mrmlScene.RemoveNode(volumeNode)`

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**Author:** ![Benjamin-JZ](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/benjamin-jz/32/65776_2.png) [@Benjamin-JZ](https://discourse.slicer.org/u/Benjamin-JZ)\
**Post date:** [April 27, 2023, 2:51am UTC](https://discourse.slicer.org/t/delete-current-volume-and-switch-next-volume/29138/3 "2023-04-27T02:51:01Z")

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Thank you for reply. i got done.But i want to ask new question that can i pick a volume which is i wanted in mutiple volumes situation ?if yes,Please teach me 🙂

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**Author:** ![Benjamin-JZ](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/benjamin-jz/32/65776_2.png) [@Benjamin-JZ](https://discourse.slicer.org/u/Benjamin-JZ)\
**Post date:** [April 27, 2023, 7:27am UTC](https://discourse.slicer.org/t/delete-current-volume-and-switch-next-volume/29138/4 "2023-04-27T07:27:47Z")

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oh,i got one more question,which is that i want to export a segmentation to files with nifit format.  
I have readed the developer guide ,But still don’t know how should i do. 😬