# What will be replacement of lenEdge of 2D in 3D?

**URL:** <https://community.freefem.org/t/what-will-be-replacement-of-lenedge-of-2d-in-3d/3595>\
**Category:** Feature Request\
**Created:** [November 22, 2024, 4:09pm UTC](https://community.freefem.org/t/what-will-be-replacement-of-lenedge-of-2d-in-3d/3595 "2024-11-22T16:09:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Monirul25](https://yyz2.discourse-cdn.com/flex030/user_avatar/community.freefem.org/monirul25/32/3287_2.png) [@Monirul25](https://community.freefem.org/u/Monirul25)\
**Post date:** [November 22, 2024, 4:09pm UTC](https://community.freefem.org/t/what-will-be-replacement-of-lenedge-of-2d-in-3d/3595/1 "2024-11-22T16:09:01Z")

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Hi, i want to know what is replacement of lenEdge in 3D?? What is the needed space for that?.

Also, **+intallfaces(Th)(jump(u)_jump(v)_(nTonEdge-1)),** here what i write instead of nTonEdge in 3D DG.