getSmoothStepPath()

Source on GitHub

The getSmoothStepPath util returns everything you need to render a stepped path between two nodes. The borderRadius property can be used to choose how rounded the corners of those steps are.

import { Position, getSmoothStepPath } from '@xyflow/react';
 
const source = { x: 0, y: 20 };
const target = { x: 150, y: 100 };
 
const [path, labelX, labelY, offsetX, offsetY] = getSmoothStepPath({
  sourceX: source.x,
  sourceY: source.y,
  sourcePosition: Position.Right,
  targetX: target.x,
  targetY: target.y,
  targetPosition: Position.Left,
});
 
console.log(path); //=> "M0 20L20 20L 70,20Q 75,20 75,25L 75,95Q ..."
console.log(labelX, labelY); //=> 75, 60
console.log(offsetX, offsetY); //=> 75, 40

Signature

The getSmoothStepPath util returns everything you need to render a stepped path between two nodes. The borderRadius property can be used to choose how rounded the corners of those steps are.

Parameters
  • [0].sourceX: number The x position of the source handle.
  • [0].sourceY: number The y position of the source handle.
  • [0].sourcePosition?: Position The position of the source handle.
  • [0].targetX: number The x position of the target handle.
  • [0].targetY: number The y position of the target handle.
  • [0].targetPosition?: Position The position of the target handle.
  • [0].borderRadius?: number
  • [0].centerX?: number
  • [0].centerY?: number
  • [0].offset?: number
  • [0].stepPosition?: number Controls where the bend occurs along the path. 0 = at source, 1 = at target, 0.5 = midpoint
Returns

[path: string, labelX: number, labelY: number, offsetX: number, offsetY: number]

Notes

  • This function returns a tuple (aka a fixed-size array) to make it easier to work with multiple edge paths at once.
  • You can set the borderRadius property to 0 to get a step edge path.