Georeference

Import

import { lngLatToLocal, localToLngLat } from '@opengeometry/floorkit';

Project a WGS84 point to site-local metres [x, z] (+X east, −Z north).

function lngLatToLocal(anchor: GeoAnchor, lng: number, lat: number, trueNorthDeg?: number): PointXZ;

Inverse of lngLatToLocal: site-local metres → [lng, lat].

function localToLngLat(
  anchor: GeoAnchor,
  x: number,
  z: number,
  trueNorthDeg?: number,
): [lng: number, lat: number];

Last modified on October 6, 2026