# SlicerMorph CreateSemiLMPatches gaps between 2 triangle regions

**URL:** <https://discourse.slicer.org/t/slicermorph-createsemilmpatches-gaps-between-2-triangle-regions/44407>\
**Category:** Support\
**Created:** [September 9, 2025, 1:15pm UTC](https://discourse.slicer.org/t/slicermorph-createsemilmpatches-gaps-between-2-triangle-regions/44407 "2025-09-09T13:15:00Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![kuoi](https://avatars.discourse-cdn.com/v4/letter/k/2acd7d/32.png) [@kuoi](https://discourse.slicer.org/u/kuoi)\
**Post date:** [September 9, 2025, 1:15pm UTC](https://discourse.slicer.org/t/slicermorph-createsemilmpatches-gaps-between-2-triangle-regions/44407/1 "2025-09-09T13:15:00Z")

</div>

Hello, I am new to 3D Slicer and SlicerMorph. I want to use the _CreateSemiLMPatches_ module in the SlicerMorph extension to map semi-landmarks on a surface. However, after following [tutorial 1](https://youtu.be/SArudRq-M4A?si=AcfRCZ-dkPy7hQzP) and [tutorial 2](https://youtu.be/UD2tmFuaSJg?si=b7havGQ-kRX-rAWn), I still cannot figure out how to fix the gaps between the two triangular regions. This might be related to the curvature of the surface.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/8/0/80774b2ea3dab3c4d033d7a727a52bf4f50e0f0d.jpeg)

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/0/a/0a85d9adb43100c49e8ee6e37c73afe255c71ab1.jpeg)

---

<div class="post-metadata">

**Author:** ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)\
**Post date:** [September 9, 2025, 2:41pm UTC](https://discourse.slicer.org/t/slicermorph-createsemilmpatches-gaps-between-2-triangle-regions/44407/2 "2025-09-09T14:41:43Z")

</div>

When you stitch these individual patches into a single markup object (the merge highlighted nodes), the module will create interppolated points in these gaps. But it will not fully fill it. I don’t think it will work well for you.