CutOptions
Defined in: network/lod.ts:999
Properties
Section titled “Properties”expandPx?
Section titled “expandPx?”
optionalexpandPx?:number
Defined in: network/lod.ts:1007
Expand an aggregate into its children once its on-screen footprint (diameter = 2·extent·k, in
px) reaches this threshold; below it the aggregate draws as a single glyph. Larger → coarser
(fewer, bigger glyphs); smaller → finer. An absolute pixel size — omit it to get the tree-adaptive
default (defaultExpandPx: 48 px for a binary coarsening tree, more for a coarser-branching
one such as a provided module partition).
fadeAlpha?
Section titled “fadeAlpha?”
optionalfadeAlpha?:Float32Array<ArrayBufferLike>
Defined in: network/lod.ts:1024
Scratch buffer, indexed by tree-node id (length ≥ tree.size), the cut fills with each emitted
node’s draw alpha when fadeBand > 0 (only frontier nodes are written; stale entries are
never read). Reusable across frames to avoid per-frame GC. Required when fadeBand > 0.
fadeBand?
Section titled “fadeBand?”
optionalfadeBand?:number
Defined in: network/lod.ts:1018
Cross-fade band (#133): half-width, as a fraction of expandPx, of the zoom band around the
expand threshold over which an aggregate and its children are drawn together — the aggregate
easing out (alpha 1→0) as its children ease in (0→1), so a split/merge reads smoothly instead of
popping. 0/absent ⇒ off (the hard threshold, zero added cost). When > 0, fill fadeAlpha.
maxAggregateRadius?
Section titled “maxAggregateRadius?”
optionalmaxAggregateRadius?:number
Defined in: network/lod.ts:1011
Aggregate draw-radius cap (matches rendering), so the cull margin reflects the drawn size.
screenSized?
Section titled “screenSized?”
optionalscreenSized?:boolean
Defined in: network/lod.ts:1009
True when glyphs are screen-pixel sized; converts the per-node draw radius to world for the cull margin.