DriftEngineThe 2D layer · function
scrollExtent
How far this node's contents extend past its own box, along each axis.
Explained in Sprites and tilemaps.
function scrollExtent(node: UiNode):import { scrollExtent } from '@driftengine/ui2d';Parameters
| Parameter | Type | Description |
|---|---|---|
node | UiNode |
In depth
Read from the span layoutUiTree measured, which is relative to the content origin and so does
not change as the node scrolls. Deriving it from placed rectangles plus the live scroll value
is wrong, and wrong in the one situation it is asked about: after a caller has moved the
scroll, the rectangles still reflect the previous value and the two no longer agree.