Enumeration TreeLayerStyle

The normal layer style, where each node takes up only the depth that it needs.

A layer style where all of the children of a parent node take up the same amount of depth -- this typically causes all cousins to be aligned.

A layer style where all nodes with the same TreeVertex.level throughout the tree take up the same amount of depth -- if the TreeVertex.angle is the same for all nodes, this will result in all nodes in the same layer to be aligned.