penDown

Built-ins

Canonical ID: turtle.penDown. Nederlands: penNeer.

Enables drawing for subsequent movement. It does not draw a dot or reconnect travel that occurred with the pen up. The initial turtle pen is already down. home also draws its move when the pen is down.

Signature

penDown()

Arguments

This call takes no arguments. Always write the parentheses.

Return value

None.

Example

# language: en
penUp()
forward(40)
penDown()
forward(60)

Only the final 60-unit move draws.

Notes and common mistakes

Use the function name for your source language. Its canonical ID is a shared documentation label; you do not type that ID as a call. Giving your own variable or function the same name can hide the built-in. Supply the documented arguments and value types. Pliro reports mismatches when checking can detect them, or when the call runs.

A host is the app or environment running your program. To see a drawing, it needs a renderer, the part that draws on screen. The command-line command pliro run shows text but does not draw these graphics. The host support table explains which effects work in the IDE, browser, native app, and phone preview. A native build reports an unsupported capability instead of leaving it out.

The initial turtle is centered, facing up, with its pen down. State can persist between explicit IDE runs; Reset Scene restores it. Portable compositing with immediate scene graphics is not yet specified, so use a consistent drawing mode when comparing hosts.

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