Draw tree using Turtle module in Python

Difficulty Level : Expert
Last Updated : 01 Oct, 2020

Prerequisite: Turtle module, Drawing Triangle, Drawing Rectangle

There are many modules in python which depicts graphical illustrations, one of them is turtle, it is an in-built module in Python, which lets the user control a pen(turtle) to draw on screen(drawing board). It is mostly used to illustrate figures, shapes, designs etc. In this article, we will learn how to draw a simple tree using the turtle module. Illustrating a Tree consists of creating a single rectangle and then three triangles of same sizes sequentially from the bottom.

Below are the steps to create a tree:

Import turtle and math module.
Set screen with dimensions and color.
Create a turtle object.
Create tree by illustrating stacked triangles and a rectangle.

Below is the program of the above approach:

Python3

# Python program to draw a tree using turtle 
# Importing required modules
import turtle
import math
  
  
# Function to draw rectangle
def drawRectangle(t, width, height, color):
    t.fillcolor(color)
    t.begin_fill()
    t.forward(width)
    t.left(90)
    t.forward(height)
    t.left(90)
    t.forward(width)
    t.left(90)
    t.forward(height)
    t.left(90)
    t.end_fill()
  
      
# Function to draw triangle    
def drawTriangle(t, length, color):
    t.fillcolor(color)
    t.begin_fill()
    t.forward(length)
    t.left(135)
    t.forward(length / math.sqrt(2))
    t.left(90)
    t.forward(length / math.sqrt(2))
    t.left(135)
    t.end_fill()
  
      
# Set the background color
screen = turtle.Screen ( )
screen.bgcolor("skyblue")
  
  
# Creating turtle object
tip = turtle.Turtle()
tip.color ("black")
tip.shape ("turtle")
tip.speed (2)
  
  
# Tree base
tip.penup()
tip.goto(100, -130)
tip.pendown()
drawRectangle(tip, 20, 40, "brown")
  
  
# Tree top
tip.penup()
tip.goto(65, -90)
tip.pendown()
drawTriangle(tip, 90, "lightgreen")
tip.penup()
tip.goto(70, -45)
tip.pendown()
drawTriangle(tip, 80, "lightgreen")
tip.penup()
tip.goto(75, -5)
tip.pendown()
drawTriangle(tip, 70, "lightgreen")

Output:-

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