# How to create an open surface constrained by markup points，and split the current segment by this surface?

**URL:** <https://discourse.slicer.org/t/how-to-create-an-open-surface-constrained-by-markup-points-and-split-the-current-segment-by-this-surface/13254>\
**Category:** Support\
**Tags:** segmentation, extensions-manager\
**Created:** [August 31, 2020, 3:03pm UTC](https://discourse.slicer.org/t/how-to-create-an-open-surface-constrained-by-markup-points-and-split-the-current-segment-by-this-surface/13254 "2020-08-31T15:03:06Z")\
**Posts on this page:** 1\
**Showing post:** 7

<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:** [September 1, 2020, 11:44pm UTC](https://discourse.slicer.org/t/how-to-create-an-open-surface-constrained-by-markup-points-and-split-the-current-segment-by-this-surface/13254/7 "2020-09-01T23:44:00Z")

</div>

Surface cut effect improvement is already available in the latest Slicer Preview Release.

There are other groups working on splitting organs to segments based on vasculature in 3D Slicer, such as this liver resection project:

> [@ALive research project](https://discourse.slicer.org/t/alive-research-project/12467):
>
> ALive Project [alive\_logo] [https://alive-research.no](https://alive-research.no) Dear Slicer community, I would like to call your attention to the ALive project that will start in Autumn 2020. In ALive, we are planning to research new methods for computation and visualization of liver resections. We believe that research software, like 3D Slicer, is an incredible vehicle to increase the impact of our research and its reach to the scientific community and society. In this line, we plan to structure our research around a …

@RafaelPalomar can you give us an update about the status of your curved planar cutting widget?

---

_[View the full topic](https://discourse.slicer.org/t/how-to-create-an-open-surface-constrained-by-markup-points-and-split-the-current-segment-by-this-surface/13254)._