Python Turtle Graphics Drawing - React JS Logo

Python Turtle Graphics Drawing - React JS Logo

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Source code:

from turtle import *

from math import sin, cos, atan2, degrees, radians

'''

Draw Bezier Curve

'''

def cbezto(b, c, d):

    a = pos()

    t = 0.0

    while t <= 1.0:

        t3 = t**3

        t2 = t**2

        f1 = -t3 + 3 * t2 - 3 * t + 1

        f2 = 3 * t3 - 6 * t2 + 3 * t

        f3 = -3 * t3 + 3 * t2

        f4 = t3

        x = a[0]*f1+b[0]*f2+c[0]*f3+d[0]*f4

        y = a[1]*f1+b[1]*f2+c[1]*f3+d[1]*f4

        d1 = -3 * t2 + 6 * t - 3

        d2 = 9 * t2 - 12 * t + 3

        d3 = -9 * t2 + 6 * t

        d4 = 3 * t2

        dx = a[0]*d1+b[0]*d2+c[0]*d3+d[0]*d4

        dy = a[1]*d1+b[1]*d2+c[1]*d3+d[1]*d4

        angr = atan2(dy, dx)

        seth(degrees(angr))

        goto(x, y)

        t += 0.05

    goto(d)

'''

Rotate Point

'''

def rot(p, a):

    ang = radians(a)

    x = p[0] * cos(ang) - p[1] * sin(ang)

    y = p[0] * sin(ang) + p[1] * cos(ang)

    return (x, y)

setup(560, 560)

bgcolor('black')

color("#61DBFB")

up()

pensize(22)

#Bezier points

PTS = [

    [(242, 38),(172, 92),(-0, 92)],

    [(-172, 92),(-242, 38),(-242, 0)],

    [(-242, -38),(-172, -92),(0, -92)],

    [(172, -92),(242, -38),(242, -0)]

]

for i in range(3):

    ang = i * 60

    goto(rot((242, 0), ang))

    down()

    for j in range(4):

        p1 = rot(PTS[j][0],ang)

        p2 = rot(PTS[j][1],ang)

        p3 = rot(PTS[j][2],ang)

        cbezto(p1,p2,p3)

    up()

goto(45, 0)

seth(90)

down()

pensize(0)

begin_fill()

circle(45)

end_fill()

hideturtle()

bgcolor('white')

done()