This example builds a static IO-tree viewer that can switch between horizontal and vertical presets at runtime. Its main lesson is a post-layout routing pass that compares computed node levels and rewrites each line's junction anchors, offsets, and geometry so inbound and outbound branches remain readable.

IO Tree Layout Orientation and Link Routing

What This Example Builds

This example builds a read-only IO tree viewer around one root node and a directed set of inbound and outbound branches. The same graph can switch between top-down and left-to-right io-tree presets while keeping compact rectangular nodes and orthogonal connectors.

Users can change the layout direction, toggle whether node size may change during layout, inspect the graph through an embedded mini view, and open the shar