Line Techniques

pen tells the turtle to trace out a colored line as it moves. Can you find an interesting pen color? There are 140 color names including most common color names like red and blue and black, plus some unusual ones like gold, seagreen, aquamarine, and rosybrown.

Pen Thickness

Using a comma, you can add a number which is the pen thickness, in pixels: pen red, 10. What does a really thick line look like?

Angles

You can experiment with turning the line in a different direction. The rt and lt commands can pivot the turtle in a new direction, like rt 90 or lt 135. If you combine several lines and angles, youc can make a shape.

Speed

Would you like to draw faster or slower? You can use the command speed 10 to tell the turtle to do 10 moves per second.

More Ideas

pen red fd 100

Reset

Reference:

colors pen dot fd bk rt lt curves