The Connected Components operator is in a special class of operators, one that creates a new variable. In this case, the operator accepts as an input variable the name of a mesh, and constructs a scalar variable as output.
The operator creates unique labels for each connected mesh sub-component and tags each zone in the mesh with the label of the connected component it belongs to. :numref:`Figure %s <conn_comp_op>`,
The operator has one option which controls the use of Ghost Zone Neighbors for connectivity between domains. This option is turned on (set to true) by default. :numref:`Figure %s <conncompwindow>`