# Tk_RGB_plasma.py

# Tk_RGB_plasma.py

from tkinter import *
from PIL import Image, ImageTk
from math import sin, pi, radians, degrees

ww = 270
hh = 270
root = Tk()
root.title("Tk_RGB_plasma")
root.geometry("%dx%d+0+0"%(ww,hh))
canvas = Canvas(root, width=ww, height=hh)
canvas.grid()

img = Image.new("RGB",(ww,hh), "white")

cc = {}
for x in range(ww):
    for y in range(hh):
        cc[x,y] = 0

xy = []
x2 = 256.0/ww
y2 = 256.0/hh
for y in range(hh):
    b = int(y*y2)
    for x in range(ww):
        a = int(x*x2)
        c = cc[a,b]
        xy += [(a,b,c)]
        cc[a,b] = c+1
zz = xy[:]

o255 = [z for z in range(256)]
o255 = o255[1:-1] + o255[::-1]
Lo = len(o255)

fade = [z for z in range(30)]
fade = fade[1:-1] + fade[::-1]
Lx = len(fade)

Lz = range(ww*hh)

def draw():
    img.putdata(xy)
    imgTk = ImageTk.PhotoImage(img)
    canvas.create_image(0, 0, anchor=NW, image=imgTk)
    root.update()

t = 1
while 1: # to keep looping
    draw()
    ttt = []
    for i in Lz:
        rgb = []
        for j in (0,1,2):
            rgb += [(zz[i][j] + t + ((j + 1) * 1.001)) % Lo]
        r,g,b = rgb
        chk = o255[int(r)%Lo], o255[int(g)%Lo], o255[int(b)%Lo]
        xy[i] = chk
        zz[i] = rgb
    t += 0.01