# SOS : Combine two 2D quad element meshes using mshr

**URL:** <https://fenicsproject.discourse.group/t/sos-combine-two-2d-quad-element-meshes-using-mshr/6330>\
**Category:** mesh\
**Created:** [August 3, 2021, 1:40am UTC](https://fenicsproject.discourse.group/t/sos-combine-two-2d-quad-element-meshes-using-mshr/6330 "2021-08-03T01:40:08Z")\
**Posts on this page:** 1\
**Showing post:** 4

<div class="post-metadata">

**Author:** ![nate](https://yyz2.discourse-cdn.com/free1/user_avatar/fenicsproject.discourse.group/nate/32/17_2.png) [@nate](https://fenicsproject.discourse.group/u/nate)\
**Post date:** [August 3, 2021, 2:50pm UTC](https://fenicsproject.discourse.group/t/sos-combine-two-2d-quad-element-meshes-using-mshr/6330/4 "2021-08-03T14:50:27Z")

</div>

The `xml` format of dolfin is also long deprecated. [meshio](https://github.com/nschloe/meshio) should convert a gmsh mesh to XDMF for use with dolfin without issue. See also this [enormous discussion](https://fenicsproject.discourse.group/t/transitioning-from-mesh-xml-to-mesh-xdmf-from-dolfin-convert-to-meshio/412).

---

_[View the full topic](https://fenicsproject.discourse.group/t/sos-combine-two-2d-quad-element-meshes-using-mshr/6330)._