dotSCAD/docs/lib-arc.md

arc

Creates an arc. You can pass a 2 element vector to define the central angle. Its $fa, $fs and $fn parameters are consistent with the circle module. It depends on the circular_sector module so you have to include circular_sector.scad.

Parameters

• radius : The radius of the circle.
• angles : 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.
• width_mode : The default value is "LINE_CROSS". The arc line will move outward by width / 2 and inward by width / 2. If it's "LINE_OUTWARD", The arc line moves outward by width. The "LINE_INWARD" moves the arc line inward by width.
• $fa, $fs, $fn : Check the circle module for more details.

Examples

include<circular_sector.scad>;    
include <arc.scad>;

$fn = 24;
arc(radius = 20, angles = [45, 290], width = 2);
%circle(r = 20); 

include<circular_sector.scad>; 
include <arc.scad>;

$fn = 24;
arc(radius = 20, angles = [45, 290], width = 2, width_mode = "LINE_INWARD");
%circle(r = 20); 

include<circular_sector.scad>; 
include <arc.scad>;

$fn = 24;
arc(radius = 20, angles = [45, 290], width = 2, width_mode = "LINE_OUTWARD");
%circle(r = 20);