Turtle Basics

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Turtle is a groovy graphics system that dates back to 1966.

Imagine you are a turtle holding a pen.

You can:

• Turn
• Move Forward
• Pick up the pen

Using these fundamental basics, we can theoretically draw any shape.

# Let's draw a line and take a few turns
turtle forward 42 rotate 120 forward 42 rotate 120 forward 42 rotate 120 save ./triangle.svg

# Let's make a square
turtle forward 42 rotate 90 forward 42 rotate 90 forward 42 rotate 90 forward 42 rotate 90 save ./square.svg

# Now let's do it the easier way, with square
turtle square 42 save ./square2.svg

# Now let's do it the general way, with polygon
turtle polygon 42 4 save ./square4.svg

Our turtle is pretty smart, and so it can draw a lot of shapes for us.

A classic example is a 'flower', which repeats many polygons

turtle flower save ./flower.svg