SpyroAI

Python Tutorial for Turtle Graphics

Initially, the turtle was only a physical thing, similar to a robot that could be

placed on a piece of paper and told to move. The turtle then transformed into a visual display on a high-resolution screen, often depicted as any shape.

Even in simply pictorial form, the concept of a turtle can help to represent activities taken and hence what a programme performs.

The turtle module creates a 2-dimensional grid environment in which turtles can move around. Turtles have a position, a heading (the direction the turtle is facing), and a variety of different states (turtles can draw lines of a specific colour when they move or leave no trace) and actions (turtles can turn left or right; go ahead or backward).

Source Code

import turtle as tu
	

	roo = tu.Turtle()  # Turtle object
	wn = tu.Screen()  # Screen Object
	wn.bgcolor(\"black\")  # Screen Bg color
	wn.title(\"Fractal Tree Pattern\")
	roo.left(90)  # moving the turtle 90 degrees towards left
	roo.speed(20)  # setting the speed of the turtle
	

	

	def draw(l):  # recursive function taking length \'l\' as argument
	    if (l < 10):
	        return
	    else:
	

	        roo.pensize(2)  # Setting Pensize
	        roo.pencolor(\"yellow\")  # Setting Pencolor as yellow
	        roo.forward(l)  # moving turtle forward by \'l\'
	        roo.left(30)  # moving the turtle 30 degrees towards left
	        draw(3 * l / 4)  # drawing a fractal on the left of the turtle object \'roo\' with 3/4th of its length
	        roo.right(60)  # moving the turtle 60 degrees towards right
	        draw(3 * l / 4)  # drawing a fractal on the right of the turtle object \'roo\' with 3/4th of its length
	        roo.left(30)  # moving the turtle 30 degrees towards left
	        roo.pensize(2)
	        roo.backward(l)  # returning the turtle back to its original psition
	

	

	draw(20)  
	

	roo.right(90)
	roo.speed(2000)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(2)
	        roo.pencolor(\"magenta\")  # magenta
	        roo.forward(l)
	        roo.left(30)
	        draw(3 * l / 4)
	        roo.right(60)
	        draw(3 * l / 4)
	        roo.left(30)
	        roo.pensize(2)
	        roo.backward(l)
	

	

	draw(20)
	

	roo.left(270)
	roo.speed(2000)
	

	

	# recursion
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(2)
	        roo.pencolor(\"red\")  # red
	        roo.forward(l)
	        roo.left(30)
	        draw(3 * l / 4)
	        roo.right(60)
	        draw(3 * l / 4)
	        roo.left(30)
	        roo.pensize(2)
	        roo.backward(l)
	

	

	draw(20)
	

	roo.right(90)
	roo.speed(2000)
	

	

	# recursion
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(2)
	        roo.pencolor(\'#FFF8DC\')  # white
	        roo.forward(l)
	        roo.left(30)
	        draw(3 * l / 4)
	        roo.right(60)
	        draw(3 * l / 4)
	        roo.left(30)
	        roo.pensize(2)
	        roo.backward(l)
	

	

	draw(20)
	

	

	
	

	def draw(l):
	    if (l < 10):
	        return
	    else:
	

	        roo.pensize(3)
	        roo.pencolor(\"lightgreen\")  # lightgreen
	        roo.forward(l)
	        roo.left(30)
	        draw(4 * l / 5)
	        roo.right(60)
	        draw(4 * l / 5)
	        roo.left(30)
	        roo.pensize(3)
	        roo.backward(l)
	

	

	draw(40)
	

	roo.right(90)
	roo.speed(2000)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(3)
	        roo.pencolor(\"red\")  # red
	        roo.forward(l)
	        roo.left(30)
	        draw(4 * l / 5)
	        roo.right(60)
	        draw(4 * l / 5)
	        roo.left(30)
	        roo.pensize(3)
	        roo.backward(l)
	

	

	draw(40)
	

	roo.left(270)
	roo.speed(2000)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(3)
	        roo.pencolor(\"yellow\")  # yellow
	        roo.forward(l)
	        roo.left(30)
	        draw(4 * l / 5)
	        roo.right(60)
	        draw(4 * l / 5)
	        roo.left(30)
	        roo.pensize(3)
	        roo.backward(l)
	

	

	draw(40)
	

	roo.right(90)
	roo.speed(2000)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(3)
	        roo.pencolor(\'#FFF8DC\')  # white
	        roo.forward(l)
	        roo.left(30)
	        draw(4 * l / 5)
	        roo.right(60)
	        draw(4 * l / 5)
	        roo.left(30)
	        roo.pensize(3)
	        roo.backward(l)
	

	

	draw(40)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	

	        roo.pensize(2)
	        roo.pencolor(\"cyan\")  # cyan
	        roo.forward(l)
	        roo.left(30)
	        draw(6 * l / 7)
	        roo.right(60)
	        draw(6 * l / 7)
	        roo.left(30)
	        roo.pensize(2)
	        roo.backward(l)
	

	

	draw(60)
	

	roo.right(90)
	roo.speed(2000)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(2)
	        roo.pencolor(\"yellow\")  # yellow
	        roo.forward(l)
	        roo.left(30)
	        draw(6 * l / 7)
	        roo.right(60)
	        draw(6 * l / 7)
	        roo.left(30)
	        roo.pensize(2)
	        roo.backward(l)
	

	

	draw(60)
	

	roo.left(270)
	roo.speed(2000)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(2)
	        roo.pencolor(\"magenta\")  # magenta
	        roo.forward(l)
	        roo.left(30)
	        draw(6 * l / 7)
	        roo.right(60)
	        draw(6 * l / 7)
	        roo.left(30)
	        roo.pensize(2)
	        roo.backward(l)
	

	

	draw(60)
	

	roo.right(90)
	roo.speed(2000)
	

	

	
	def draw(l):
	    if (l < 10):
	        return
	    else:
	        roo.pensize(2)
	        roo.pencolor(\'#FFF8DC\')  # white
	        roo.forward(l)
	        roo.left(30)
	        draw(6 * l / 7)
	        roo.right(60)
	        draw(6 * l / 7)
	        roo.left(30)
	        roo.pensize(2)
	        roo.backward(l)
	

	

	draw(60)
	wn.exitonclick()