dotSCAD/docs/lib-shape_ellipse.md

shape_ellipse

Returns shape points and triangle indexes of an ellipse. They can be used with xxx_extrude modules of dotSCAD. The shape points can be also used with the built-in polygon module.

Parameters

• axes : 2 element vector [x, y] where x is the semi-major axis and y is the semi-minor axis.
• $fa, $fs, $fn : The shape created by this function can be viewd as resize([x, y]) circle(r = x) (but not the real implementation inside the module) so you can use these global variables to control it. Check the circle module for more details.

Examples

include <shape_ellipse.scad>;

polygon(
	shape_ellipse([40, 20])[0]
);

include <shape_ellipse.scad>;
include <circle_path.scad>;
include <helix.scad>;
include <rotate_p.scad>;
include <cross_sections.scad>;
include <polysections.scad>;
include <helix_extrude.scad>;

$fn = 8;
	
shape_pts_tris = shape_ellipse([20, 10]);

helix_extrude(shape_pts_tris[0], 
	radius = 40, 
	levels = 5, 
	level_dist = 20,
	triangles = shape_pts_tris[1]
);