Creates a 2D polyline from a list of `[x, y]`

coordinates. As the name says, it uses the built-in hull operation for each pair of points (created by the `circle`

module). It's slow. However, it can be used to create metallic effects for a small `$fn`

, large `$fa`

or `$fs`

.

## Parameters

`points`

: The list of`[x, y]`

points of the polyline. The points are indexed from 0 to n-1.`width`

: The line width.`$fa`

,`$fs`

,`$fn`

: Check the circle module for more details.

## Examples

```
use <hull_polyline2d.scad>;
$fn = 4;
hull_polyline2d(
points = [[1, 2], [-5, -4], [-5, 3], [5, 5]],
width = 1
);
```