Variable sized spheres over points depending on how close it is to other points

Scripting
1

I have 400 or so points in my 3d coordinate plane and I am trying to analyze their density. I was wondering if there is a way to look at each point and its relationship to others, then, depending on their relationship, create a sphere with a certain radius with the respective point at its center. The parameters for how large the sphere should be could be as follows: If another point is 0-3 units away in any direction the resulting sphere should have a radius of 3, if another point is 3-6 units away it should have a radius of 2, if another point is 6-9 units away it should have a radius of 1, etc.

I know I should be using if statements but I’m new to rhino and python so the syntax is really getting me.

2

Hello - see how this works:

import rhinoscriptsyntax as rs
import Rhino
import scriptcontext as sc

def test():
        
    rs.EnableRedraw(False)
    
    points = rs.ObjectsByType(1)
    
    pts = [rs.coerce3dpoint(id) for id in points]
    spheres = []
    count = 0
    
    while count < len(points):

        pt = pts.pop()

        testPt = pts[rs.PointArrayClosestPoint(pts, pt)]
        d = pt.DistanceTo(testPt)

        if d <= 3:
            spheres.append(Rhino.Geometry.Sphere(pt, 3.0))
        elif 3< d <=6:
            spheres.append(Rhino.Geometry.Sphere(pt, 2.0))
        elif 6<d<=9:
            spheres.append(Rhino.Geometry.Sphere(pt, 1.0))
            
        pts.insert(0, pt)
        count+=1
        
    if len(spheres) > 0:
        for sphere in spheres:
            sc.doc.Objects.AddSphere(sphere)
        
    rs.EnableRedraw(True)


test()

@odbc - see https://developer.rhino3d.com/guides/rhinopython/

-Pascal

3

@pascal
Works great, you’re really killing it. Do you know of any good youtubers or books I should read to get my rhino+python game up to par?
Thanks a mill

4

https://www.rhino3d.com/download/ironpython/5.0/rhinopython101