turn3D
Canonical ID: scene3d.turn. Nederlands: draai3D.
Adds a yaw (the left-or-right angle) change in degrees around the existing object center. This is relative rotation, not an absolute heading setter. Yaw wraps into [0,360), including fractional and negative turns. Shape position remains unchanged. A cylinder or sphere keeps its analytic (calculated from the mathematical shape) shape while its visible facets or texture can rotate.
See 3D words and camera rules.
Signature
turn3D(name, degrees)
Arguments
| Parameter | Type | Requirement |
|---|---|---|
name |
Text | Case-sensitive, nonblank object name; at most 64 UTF-8 bytes. |
degrees |
Number | Finite signed change, absolute value at most 1,000,000,000. |
Return value
None.
Example
# language: en
clear3D("black")
box3D("box", 2, 1, 1)
turn3D("box", 30)
turn3D("box", -5)
draw3D()
The box ends at yaw 25 degrees.
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.
In 3D, +Y points up. Yaw is the left-or-right angle; at zero the camera faces -Z. The world holds at most 256 objects. Changes appear when you call draw3D. An invalid call leaves the world unchanged. Editing requires an existing object name; creating objects and removing an absent name are exceptions. Use the portable color names or hex codes; transparent colors are unavailable here. Version 1 of the phone preview’s communication format does not carry 3D scenes. See the 3D guide for the coordinate rules.
Related entries
clear3D · box3D · sphere3D · cylinder3D · position3D · Programming guides · Host support · Calls and arguments