# torus_knot 

Generate a path of [The (p,q)-torus knot](https://en.wikipedia.org/wiki/Torus_knot).

**Since:** 1.2.

![torus_knot](images/lib3x-torus_knot-1.JPG)

## Parameters

- `p` : The p parameter of The (p,q)-torus knot. 
- `q` : The q parameter of The (p,q)-torus knot. 
- `phi_step` : The amount when increasing phi. 

## Examples

	use <shape_pentagram.scad>
	use <path_extrude.scad>
	use <torus_knot.scad>

	p = 2;
	q = 3;
	phi_step = 0.05;
	star_radius = 0.5;

	pts = torus_knot(p, q, phi_step);

	shape_pentagram_pts = shape_pentagram(star_radius);

	path_extrude(
		shape_pentagram_pts, 
        [each pts, pts[0]], 
		closed = true,
		method = "EULER_ANGLE"
	);

![torus_knot](images/lib3x-torus_knot-2.JPG)