mosaic.Descriptor.vertex_patches

property Descriptor.vertex_patches

ndarray of patch coordinates for vertex centered values

Dimensions: (nVertices, 6)

Notes

Vertex patches have 6 nodes despite the typical dual cell only having three nodes (i.e. the cell centers of three cells on the vertex) in order to simplify vertex patches creation along culled mesh boundaries. The typical vertex patch will be comprised of the edges and cell centers of the cellsOnVertex. As the MPAS Mesh Specs (version 1.0: Section 5.3) outlines: “Edges lead cells as they move around vertex”. So, the first node in a vertex patch will correspond to an edge (if present).

For patches along culled boundaries, if an edge and/or cell center is missing the corresponding node will be collapsed to the patches vertex position.