Luxar Viewer API Documentation - v2026.10.19
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    Interface SpatialFacadeCtx

    Per-loader context for the shared facade helpers. Built once in each loader's constructor; every field is a stable reference or a this-bound accessor, so the ctx never goes stale.

    interface SpatialFacadeCtx {
        metrics: FacadeMetrics;
        activeQueries: Map<string, QueryInfo>;
        loader: LoaderType;
        path: string;
        sliceCache: SliceCache | null;
        nextQueryId(): number;
        accumulatorMemoryMB(): number;
        emit(event: MonitorEvent): void;
        activeSignal?(): AbortSignal | null;
    }
    Index
    metrics activeQueries loader path sliceCache
    nextQueryId accumulatorMemoryMB emit activeSignal?
    metrics: FacadeMetrics

    The loader's live metrics record (mutated in place).

    activeQueries: Map<string, QueryInfo>

    The loader's active-query map (mutated in place).

    loader: LoaderType

    Loader type literal for emitted events.

    path: string

    Node path (S-cache namespace + event payload).

    sliceCache: SliceCache | null

    Shared S-cache; null for progressive sub-LOD instances.

    • The current update's abort signal (the loader's _lifetime.calls.signal), so a wait for an in-flight shadow store stops when the update is superseded.

      Returns AbortSignal | null

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