const worldMatrix = new THREE.Matrix4();
const alignments_webifc = ifcApi.GetAllAlignments(modelId);
const alignment = alignments_webifc[0];
worldMatrix.fromArray(alignment.FlattenedWorldTransformMatrix);

alignment.horizontal.forEach(
      ({ points }: { points: { x: number; y: number; z: number }[] }) => {
      
      points.forEach((pt) => {
          const localPt = new THREE.Vector3(pt.x, pt.y, pt.z);
          const worldPt = localPt.applyMatrix4(worldMatrix);
        });
      });

const alignments_webifc = ifcApi.GetAllAlignments(modelId);
for (const alignment of alignments_webifc) {
    const worldMatrix = new THREE.Matrix4();
    worldMatrix.fromArray(alignment.FlattenedWorldTransformMatrix);

    alignment.horizontal.forEach(
      ({ points }: { points: { x: number; y: number; z: number }[] }) => {
        const worldCoordinates: THREE.Vector3[] = [];
        const localCoordinates: THREE.Vector3[] = [];
        points.forEach((pt) => {
          const localPt = new THREE.Vector3(pt.x, pt.y, pt.z);
          localCoordinates.push(localPt);

          const worldPt = localPt.clone().applyMatrix4(worldMatrix);
          worldCoordinates.push(worldPt);
        });
        console.log(localCoordinates);
        console.log(worldCoordinates);
      }
    );
  }