dotSCAD/docs/lib-arc.md

arc

Create an arc. You can pass a 2 element vector to define the central angle. It provides a fn parameter consistent with the $fn parameter of 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.
• fn : The $fn value used by the circle module internally. The default value is 24.

Examples

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

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

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