2020-03-23 16:49:50 +08:00
# shape_circle
Sometimes you need all points on the path of a circle. Here's the function. Its `$fa` , `$fs` and `$fn` parameters are consistent with the `circle` module.
2020-03-23 16:54:48 +08:00
**Since: 2.3**
2020-03-23 16:49:50 +08:00
## Parameters
- `radius` : The radius of the circle.
- `n` : The number of points you want. It's not greater than the fragments of the circle.
- `$fa` , `$fs` , `$fn` : Check [the circle module ](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle ) for more details.
## Examples
use < shape_circle.scad > ;
$fn = 24;
points = shape_circle(radius = 50);
polygon(points);
leng = len(points);
step_angle = 360 / leng;
for(i = [0:leng - 1]) {
translate(points[i])
rotate([90, 0, 90 + i * step_angle])
linear_extrude(1, center = true)
text("A", valign = "center", halign = "center");
}
