# How to creat a plane by 3 fiducials and then used in "modelclip"?
**URL:** https://discourse.slicer.org/t/how-to-creat-a-plane-by-3-fiducials-and-then-used-in-modelclip/1722
**Category:** Support
**Created:** [December 26, 2017, 9:26am UTC](https://discourse.slicer.org/t/how-to-creat-a-plane-by-3-fiducials-and-then-used-in-modelclip/1722 "2017-12-26T09:26:00Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@timeanddoctor](https://discourse.slicer.org/u/timeanddoctor)
#### Post date: [December 26, 2017, 9:26am UTC](https://discourse.slicer.org/t/how-to-creat-a-plane-by-3-fiducials-and-then-used-in-modelclip/1722/1 "2017-12-26T09:26:00Z")
Operating system:
Slicer version:12-24
Expected behavior:
Actual behavior:
I am going to creat a plane by 3 fiducials，and then cut a model like the module “modelclip”?
---
### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [December 26, 2017, 3:41pm UTC](https://discourse.slicer.org/t/how-to-creat-a-plane-by-3-fiducials-and-then-used-in-modelclip/1722/2 "2017-12-26T15:41:54Z")
You can copy-paste a few lines of Python code to the console to orient a slice plane using 3 fiducials: [https://www.slicer.org/wiki/Documentation/Nightly/ScriptRepository#Fit\_slice\_plane\_to\_markup\_fiducials](https://www.slicer.org/wiki/Documentation/Nightly/ScriptRepository#Fit_slice_plane_to_markup_fiducials)
Alternatively, if you don’t want to use the Python console and you need to cut a closed surface, then you can use Segment editor module:
- Segmentations module (Import/export section): import your model into a Segmentation node
- Segment editor module: cut the segment using Scissors tool in either 3D or slice views
- Segmentations module (Import/export section): export segment to model