Extract tagged boundary/internal segments.

Extract boundary or internal segments tagged by group id:s. 

extract.groups(...)

# S3 method for class 'inla.mesh.segment'
extract.groups(
  segm, groups, groups.new = groups, ...)

Arguments

segm

An inla.mesh.segment object.

groups

The segment groups id:s to extract.

groups.new

Optional vector of group id remapping; groups[k] in the input will be replaced by groups.new[k] in the output.

...

Additional arguments, passed on to other methods.

Author

Finn Lindgren finn.lindgren@gmail.com