Simple Python Turtle Graphic and Code: Oscillating Circles смотреть онлайн

Snapshot of non-concentric circles in oscillation. The constant change in size from big to small, and color from violet to red are incorporated in the graphic to illustrate instability.

Feel free to copy the basic Python Turtle code that is given below. Don't hesitate to ask questions about the code if you have any. Enjoy! Please comment, like, or subscribe :)

Incidentally, for more graphics and variations, please visit my author url at https://www.amazon.com/author/basicpythonturtleart.url

import turtle
t = turtle.Turtle() #Definitions and Initializations
screen = turtle.Screen()
t.pensize(4)
screen.colormode(255) #Requirement in use of 0 to 255 for red, green, and blue or (r, g, b)
r = b = 255 #Initial value of red and blue
g = 0 #Initial value of green; (255, 0, 255) for violet
number_of_circles = 18 #Changeable; Number of oscillating circles in the graphic
radius = 240 #Changeable; Initial radius applied to biggest circle in the graphic
radius_diff = 13.33 #Difference in radii between two consecutive circles; 13.33 here =
#(initial radius) / (number of circles)
t.penup() #Python_Grapghic start of drawing procedure
t.forward(radius) #Trail-less movement of turtle to (radius, 0)
t.left(90) #Change of turtle direction to left
t.pendown() #Drawing preparation
for i in range(number_of_circles): #Loop to draw the desired number of oscillating circles
t.fillcolor(r, g, b) #Color fill procedure starts with current value of r, g, b
t.begin_fill()
t.circle(radius, 400 ) #A circle overdrawn to 400 degrees to move start of next circle a bit off from
t.end_fill() #that of current circle
radius -= radius_diff #Decrease in circle radius by an initialized radius_diff above
b -= 14 #Decrease in value of b where 14 is maximum integer less than [255 divided by
t.hideturtle() #(number of circles)]
screen.exitonclick()