Paritioning/Slicing 3D CCF objects

[hypercompetent]

Can we find a way to split CCF meshes into custom sub-regions?

For example, divide PAG into dmPAG/dlPAG, etc as shown here: https://www.researchgate.net/figure/Circuitry-of-the-periaqueductal-gray-area-PAG-associated-with-defensive-behavior-In_fig5_263236478

Resources: https://github.com/zarquon42b/mesheR https://cran.r-project.org/web/packages/Rvcg/ http://zarquon42b.github.io/