How do you draw an ellipse/oval in turtle graphics?

Question

How do you draw an ellipse/oval in turtle graphics in Python? I want to be able to draw an ellipse and part of an ellipse using the circle() function or similar. I can stamp one using

turtlesize(stretch_wid=None, stretch_len=10, outline=None)

But I don’t want it to be color filled.

Asked By: Tristan

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Source

Answer 1

You can use shapesize() function of turtle to make an ellipse.

shape("circle")
shapesize(5,4,1)
fillcolor("white")

Answered By: avinash pandey

Answer 2

#you can create circle or ellipse by changing value of parameter of oval=canvas.create_oval(10,15,200,150)
from Tkinter import *
top=Tk()`
canvas=Canvas(top,width=200,height=200)
canvas.pack()
oval=canvas.create_oval(10,15,200,150)
top.mainloop()

Answered By: Hukmaram

Answer 3

I made my own function for drawing ovals that I personally think is very useful:

def talloval(r):               # Verticle Oval
    turtle.left(45)
    for loop in range(2):      # Draws 2 halves of ellipse
        turtle.circle(r,90)    # Long curved part
        turtle.circle(r/2,90)  # Short curved part

def flatoval(r):               # Horizontal Oval
    turtle.right(45)
    for loop in range(2):
        turtle.circle(r,90)
        turtle.circle(r/2,90)

The r is the radius of the circle and it controls how big the ellipse is. The reason for the turn left/right is because without it, the ellipse is diagonal.

Answered By: Ollie

Answer 4

We can make an ellipse using its parametric equation in Turtle module.
The code below might be a bit long but using this we can draw the ellipse in any orientation as required.You can edit it according to the requirement.We are basically changing the parametric angle of ellipse and plotting the curve.

  import turtle
  import math
  def ellipse(a, b, h=None, k=None, angle=None, angle_unit=None):
     myturtle = turtle.Turtle()
     if h is None:
       h = 0
     if k is None:
       k = 0
    # Angle unit can be degree or radian
     if angle is None:
       angle = 360
       converted_angle = angle*0.875
     if angle_unit == 'd' or angle_unit is None:
       converted_angle = angle * 0.875
     # We are multiplying by 0.875 because for making a complete ellipse we are plotting 315 pts according
     # to our parametric angle value
     elif angle_unit == "r":
       converted_angle = (angle * 0.875 * (180/math.pi))
     # Converting radian to degrees.
    for i in range(int(converted_angle)+1):
       if i == 0:
         myturtle.up()
       else:
         myturtle.down()
       myturtle.setposition(h+a*math.cos(i/50), k+b*math.sin(i/50))
   turtle.done()

Answered By: Devansu Yadav

Answer 5

I was doing ovals in CodeHS Python(turtle)

image of code

Answered By: BrFr

How do you draw an ellipse/oval in turtle graphics?

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