dotSCAD/docs/lib3x-shape_circle.md

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.

Since: 2.3

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 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");
}