@ifc-lite/pointcloud

Renderer-agnostic point cloud decoders for ifc-lite. Phase 0 covers the three IFCx pointcloud schemas authored by buildingSMART:

• pcd::base64 — full PCD file (PCL format) embedded as base64. Supports ASCII, binary, and LZF-compressed binary_compressed payloads.
• points::array — inline JSON { positions: number[][], colors?: number[][] }.
• points::base64 — { positions: base64-Float32, colors?: base64-Float32 }.

import { decodeIfcxPointAttribute } from '@ifc-lite/pointcloud';

const chunk = decodeIfcxPointAttribute(node.attributes);
if (chunk) {
  console.log(`${chunk.pointCount} points`, chunk.bbox);
  // chunk.positions, chunk.colors are ready for GPU upload
}

The renderer (@ifc-lite/renderer) consumes DecodedPointChunk values via Renderer.loadPointClouds() / Renderer.addPointCloudChunks().

License

MPL-2.0