Sonic Pi musical Spirograph

robin.newman · December 15, 2018, 1:35pm

EDIT
Improved version 2 now available here

Just completed a project to produce a musical spirograph

Full version of video here

code link

gist.github.com

https://gist.github.com/rbnpi/9e1c66bfc41189d9ccf88622b26bd3ec

Spirograph.py

#Author: marktini   github.com/marktini
#Spirograph curve drawing program
#Version 1.0
#modified to Python3 by Robin Newman Dec 2018
#additions to allow export of x,y coords using OSC message
#with aid of pythonosc library
import math
import turtle
import random
import time

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euclidian.py

#updated to python3 by Robin Newman December 2018
#function that finds greatest common divisor using Euclidian algorithm. 
#For math description of the algorithm, visit https://en.wikipedia.org/wiki/Euclidean_algorithm
def euclidianGCD(a, b):
    #check if either of the inputs is zero
    if (a==0 or b==0):
        if (a==0 and b!=0):
            return b
        elif (a!=0 and b==0):
            return a

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frange.py

#python3 version (same as python2 version)
#analog of the range() function but this one allows decimal increments
def frange(start, end, step=None):
    if step!=None:
        this = start
        list = []
        list.append(this)
        while (this <= end):
            this = this + step
            this = round(this, 2)

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darinwilson · December 17, 2018, 7:31pm

That’s fantastic! I loved my Spirograph when I was a kid

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Sonic Pi musical Spirograph

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