/**
 * Decoders for the two non-PCD IFCx point cloud schemas authored by
 * buildingSMART:
 *
 *   points::array  — { positions: number[][], colors?: number[][] }
 *                    inline JSON arrays of [x,y,z] and [r,g,b] in 0..1
 *
 *   points::base64 — { positions: base64-string, colors?: base64-string }
 *                    little-endian Float32 buffers, [x,y,z, x,y,z, ...]
 *                    and [r,g,b, r,g,b, ...] in 0..1
 *
 * The PCD schema (pcd::base64) is decoded by formats/pcd.ts; the adapter
 * that picks between these three lives in `from-ifcx-attributes.ts`.
 */
import type { DecodedPointChunk } from '../types.js';
export interface PointsArrayAttribute {
    positions: number[][];
    colors?: number[][];
}
export interface PointsBase64Attribute {
    positions: string;
    colors?: string;
}
export declare function decodePointsArray(attr: PointsArrayAttribute): DecodedPointChunk;
export declare function decodePointsBase64(attr: PointsBase64Attribute): DecodedPointChunk;
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