The sorting criteria can be either one of the geometric dimensions of the
node or the value of a data model attribute of the node.
Node Order
If the layout mode is either TILE_TO_ROWS or
TILE_TO_COLUMNS, the node order parameter allows you to
specify sorting criteria to define the order of the nodes. If multiple
criteria are specified, the second criteria is used only when two nodes are
equal with respect to the first criteria, the third criteria is used only when
two nodes are equals with respect to both the first and second criteria
and so on.