position3D
Canonical ID: scene3d.position. Nederlands: plaats3D.
Sets the center of an existing object to an absolute world position. +Y is up; this is not the 2D screen coordinate system. It preserves geometry, yaw (the left-or-right angle), color, texture, and solidity. No collision prevention applies to object placement: source may place objects inside one another. Call draw3D afterward to display the change.
See 3D words and camera rules.
Signature
position3D(name, x, y, z)
Arguments
| Parameter | Type | Requirement |
|---|---|---|
name |
Text | Case-sensitive, nonblank object name; at most 64 UTF-8 bytes. |
x |
Number | Finite world coordinate, absolute value at most 10,000. |
y |
Number | Finite world coordinate, absolute value at most 10,000. |
z |
Number | Finite world coordinate, absolute value at most 10,000. |
Return value
None.
Example
# language: en
clear3D("black")
box3D("box", 1, 1, 1)
position3D("box", 1, 0, -2)
lookAt3D(1, 0, -2)
draw3D()
The box center moves to (1,0,-2).
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 · turn3D · Programming guides · Host support · Calls and arguments