Returns shape points of a pie (circular sector) shape. They can be used with xxx_extrude modules of dotSCAD. The shape points can be also used with the built-in polygon 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 for more details.

## Examples

```
use <shape_pie.scad>;
shape_pts = shape_pie(10, [45, 315], $fn = 24);
polygon(shape_pts);
```

```
use <shape_pie.scad>;
use <helix_extrude.scad>;
shape_pts = shape_pie(10, [45, 315], $fn = 8);
helix_extrude(shape_pts,
radius = 40,
levels = 5,
level_dist = 20
);
```