Draw dashed line using turtle graphics

Question

from turtle import Turtle, Screen
tt_turtle_obj = Turtle()

for _ in range(15):
    tt_turtle_obj.forward(10)
    tt_turtle_obj.color("white")
    tt_turtle_obj.forward(10)
    tt_turtle_obj.color("black")

screen = Screen()
screen.exitonclick()

I used this code to do the same. Is there any other way?

Answer 1

You can use the turtle.penup() and turtle.pendown() methods, to control when the turtle will draw on the canvas and when it won't. Here is the code:

from turtle import Turtle, Screen
tt_turtle_obj = Turtle()

for _ in range(15):
    tt_turtle_obj.forward(10)
    tt_turtle_obj.penup()
    tt_turtle_obj.forward(10)
    tt_turtle_obj.pendown()

screen = Screen()
screen.exitonclick()

This way, you can draw a dashed line over any background and the code can be reused in different scenarios. In the end, both codes do the same thing.

Answer 2

Instead of turtle.color() try turtle.pencolor() to changes the colour in a line.

from turtle import Turtle, Screen
tt_turtle_obj = Turtle()

for _ in range(15):
  tt_turtle_obj.forward(10)
  tt_turtle_obj.pencolor("black")
  tt_turtle_obj.forward(10)
  tt_turtle_obj.pencolor("white")

screen = Screen()
screen.exitonclick()