I have a geometry currently defined via .stl file (attached below). Unfortunetly, as noted in the documentation (STL Limitation) matlab recognises each object as an individual cell with no common interface between the two. The interface between the objects is then pretty important in this setting. "As a workaround, you can import a mesh and then create a multidomain geometry from the mesh by using the geometryFromMesh function."
From the documentation I'm aware the alphashape is another option available for setting up discrete geometries however I didn't find the documentation particularily useful and cannot fathom how to begin setting up a geometry related to my problem in this fashion.