<![CDATA[Regular polygons example]]>Hello, I'm making some code examples, here is a regular polygon generator. it can be used to demo the function or make a polygon with it. It can be viewed here
https://openjscad.org/#https://raw.githubusercontent.com/gilboonet/designs/master/regularPolygons.jscad

My intention is to do the same for common polyhedrons (icosahedron and so on), so users could start a design from one of those volumes, just by picking the corresponding function.

I'm using a function (simpleRotate) to rotate my points, but was there a way to use an internal function to do the same ?

0_1558346448584_Capture d’écran de 2019-05-20 11-59-09.png

]]>https://openjscad.nodebb.com/topic/90/regular-polygons-exampleRSS for NodeMon, 20 Apr 2026 21:40:42 GMTMon, 20 May 2019 10:09:49 GMT60<![CDATA[Reply to Regular polygons example on Mon, 20 May 2019 11:38:22 GMT]]>This new star primitive looks promising. Thank you for the code sample, I will try to use .fromAngleRadians().

]]>https://openjscad.nodebb.com/post/129https://openjscad.nodebb.com/post/129Mon, 20 May 2019 11:38:22 GMT<![CDATA[Reply to Regular polygons example on Mon, 20 May 2019 10:32:38 GMT]]>There are many ways to do anything. ✌

The simpleRotate() function isn’t wrong but reminded me of a small piece in the new star primitive (new in V2).

const getPoints = (vertices, radius, startAngle, center) => {
var a1 = degToRad(startAngle)
var a = 2 * Math.PI / vertices
var points = []
for (var i = 0; i < vertices; i++) {
let point = vec2.fromAngleRadians(a * i + a1)
vec2.scale(point, radius, point)
vec2.add(point, center, point)
points.push(point)
}
return points
}

I hope this provides some encouragement.

]]>https://openjscad.nodebb.com/post/128https://openjscad.nodebb.com/post/128Mon, 20 May 2019 10:32:38 GMT