checkpoints

When true, the edge is routed through fixed waypoints read from edge.data.checkpoints. Each segment still uses pathfinding. No draggable control points are rendered.

Type	boolean
Default	false

createSmartEdge("step", { checkpoints: true, gridRatio: 5 });

Or use SmartCheckpointEdge directly.

Checkpoints persist on edge.data.checkpoints as { x, y }[]. See Checkpoint edges.

If both checkpoints and editable are true, editable waypoints take precedence and checkpoints is ignored.