Builds the layer, depth first, in the order the diagram lists the nodes.
A tree names a node by its path, so two siblings sharing a name would be
read as one; the second is numbered instead, Uses (2), which is how a
reader tells them apart without seeing them.
Builds the layer, depth first, in the order the diagram lists the nodes.
A tree names a node by its path, so two siblings sharing a name would be read as one; the second is numbered instead,
Uses (2), which is how a reader tells them apart without seeing them.