# Points interaction between segment node and model node

**URL:** <https://discourse.slicer.org/t/points-interaction-between-segment-node-and-model-node/5874>\
**Category:** Support\
**Created:** [February 21, 2019, 8:11pm UTC](https://discourse.slicer.org/t/points-interaction-between-segment-node-and-model-node/5874 "2019-02-21T20:11:16Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![SebastianE93](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sebastiane93/32/3112_2.png) [@SebastianE93](https://discourse.slicer.org/u/SebastianE93)\
**Post date:** [February 21, 2019, 8:11pm UTC](https://discourse.slicer.org/t/points-interaction-between-segment-node-and-model-node/5874/1 "2019-02-21T20:11:16Z")

</div>

Operating system: Windows 10  
Slicer version: 4.11.0  
Expected behavior:  
Actual behavior:

Sorry for my question, i’m a newby

I’m trying to determine how many points of the surface of a vtkMRMLSegmentationNode is interacting with a vtkModelNode.

 ![Captura](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/a/0/a02137308fd73a3213a147ff36b63f8599b65fff.png)

In the image I try to explain better. The cylinder is passing through the cube and I want to know witch is the surface percentage that is touching the cube (red surface 60%) and witch is not (40%).

Thanks you in advance !

---

<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [February 25, 2019, 4:29pm UTC](https://discourse.slicer.org/t/points-interaction-between-segment-node-and-model-node/5874/2 "2019-02-25T16:29:09Z")

</div>

A post was merged into an existing topic: [Points and surface interaction between segment node and model node](https://discourse.slicer.org/t/points-and-surface-interaction-between-segment-node-and-model-node/5921)

---

<div class="post-metadata">

**Author:** ![cpinter](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/cpinter/32/7995_2.png) [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Post date:** [February 25, 2019, 4:29pm UTC](https://discourse.slicer.org/t/points-interaction-between-segment-node-and-model-node/5874/3 "2019-02-25T16:29:09Z")

</div>