Dividing a Circle

Grasshopper
1

Hi, I am trying to adapt this script so that it will run in GH. I am having trouble defining the output for the small circles and also not sure how to define the variable input B so that I can divide radius by any number rather than 2.
I include the script that works well, directly from python and the script I have used in GH.

circlesoncircles
circlesoncircles1920×1250 165 KB

So far I have only had success with output “a” showing up in Rhino from GH

2

circlesoncircles.py (929 Bytes)
circlesaroundcircle.gh (6.6 KB)

3

Any help would be much appreciated

4

rhinoscriptsyntax is meant to be used in Rhino. In Grasshopper, you should use the API, also called RhinoCommon.

Here’s an example:

import Rhino.Geometry as rg
import math

if __name__ == "__main__":
    circle = rg.Circle(center, radius)
    curve = circle.ToNurbsCurve()
    params = curve.DivideByCount(division, True)
    
    circles = []
    for t in params:
        pt = curve.PointAt(t)
        circles.append(rg.Circle(pt, (2 * math.pi * radius / division) * 0.5))
        
    a = circles
5

Thank you for the advice…