Selecting Parts of Meshes (DMLabel)#
The DMLABEL
object is used to mark pieces of a mesh or DM
, for example to indicate that a boundary condition should hold on that section.
Markers are integers, so it can be seen as a multimap between integers and mesh pieces.
Insertion is amortized since hash tables are used, but each bin is then sorted so that extraction into sorted levels is also . The total cost should be for entries.