Function axiom4Arrows

axiom4Arrows(graph, line, point, options): Arrow[]
Parameters
- graph: FOLD
  a FOLD object
- line: VecLine2
  the line needed for axiom 4
- point: [number, number]
  the point needed for axiom 4
- options: {
  padding?: number;
  vmin?: number;
  }
  - Optional padding?: number
  - Optional vmin?: number
Returns Arrow[]
an array of definitions for arrows. This will result in always one arrow.

Description
Create an arrow which neatly describes the action of performing origami axiom 4 on a given FOLD object with 2D vertices.
- Defined in src/diagrams/axiomArrows.js:149