# arc_path

Creates an arc path. You can pass a 2 element vector to define the central angle. Its `$fa`, `$fs` and `$fn` parameters are consistent with the `circle` module. 

## Parameters

- `radius` : The radius of the circle.
- `angle` : A single value or a 2 element vector which defines the central angle. The first element of the vector is the beginning angle in degrees, and the second element is the ending angle.
- `$fa`, `$fs`, `$fn` : Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details.


## Examples
  
    include <arc_path.scad>;
    include <hull_polyline2d.scad>;
    
    $fn = 24;
    points = arc_path(radius = 20, angle = [45, 290]);
    hull_polyline2d(points, width = 2);

![arc_path](images/lib-arc_path-1.JPG)

    include <arc_path.scad>;
    include <hull_polyline2d.scad>;
    
    $fn = 24;
    points = arc_path(radius = 20, angle = 135);
    hull_polyline2d(points, width = 2);

![arc_path](images/lib-arc_path-2.JPG)


