Meetwereld Leica DBX Exporter v0.4.2

NSGI grids (converted from GeoTIFF to JSON arrays, values unaltered):
nl_nsgi_rdtrans2018.tif and nl_nsgi_nlgeo2018.tif
Source: https://cdn.proj.org/
Original: Netherlands Partnership Geodetic Infrastructure (NSGI), https://www.nsgi.nl/
License: Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/
Bilinear interpolation; iterative inverse horizontal grid shift; Bessel oblique stereographic projection.

Libraries bundled locally (no third-party runtime network requests):
fflate 0.8.2 — MIT — https://github.com/101arrowz/fflate
jsPDF 3.0.3 — MIT — https://github.com/parallax/jsPDF
proj4js 2.19.10 — MIT — https://github.com/proj4js/proj4js
DejaVu Sans — subset embedded in PDF reports — Bitstream Vera / DejaVu license.
See license files in vendor/.

This is an independent, empirical reader; not an official Leica implementation.
Meetwereld branding is used for the owner's tool. Leica is a trademark of its respective owner.

OPTIONELE ACHTERGRONDKAARTEN (v0.4.2)
PDOK BRT-achtergrondkaart: Kadaster, CC BY 4.0. Native EPSG:28992 WMTS.
https://www.kadaster.nl/zakelijk/producten/geo-informatie/brt-achtergrondkaart
PDOK Luchtfoto RGB Actueel_orthoHR: CC BY 4.0. Native EPSG:28992 WMTS.
https://www.pdok.nl/introductie/-/article/luchtfoto-rgb
OpenTopoMap vector: kaartgegevens © OpenStreetMap contributors; kaartstijl © OpenTopoMap.
https://opentopomap.org/vector/
https://opentopomap.org/about
https://www.openstreetmap.org/copyright
Official source: https://opentopomap.org/otm/{z}/{x}/{y}.pbf (native maxzoom 14).
Style and sprite adapted from the official vector page, retrieved 2026-10-24.
CC BY-SA 3.0; see vector/OPENTOPOMAP-LICENCE.txt.
Meetwereld 2D adaptation: removed raster, relief, hillshade and contour overlays;
normalised upstream min_zoom/max_zoom keys; fixed Mercator view and local sprite URL.
Adapted style distributed under CC BY-SA 3.0. Other code retains its own licensing.
Only visible tiles on request, max 6 concurrent downloads. No offline tile archive.
View zoom 5–24; overzoom does not create new features or increase source accuracy.
RD survey geometry is projected for display through NSGI grids and Web Mercator.
DBX coordinates and exports are unchanged. Attribution stays visible beside the map.

Local Canvas vector libraries (pinned distribution files, no build step):
OpenLayers 10.11.0 — BSD-2-Clause — https://github.com/openlayers/openlayers
https://cdn.jsdelivr.net/npm/ol@10.11.0/dist/ol.js
https://cdn.jsdelivr.net/npm/ol@10.11.0/ol.css
ol-mapbox-style 13.8.0 — BSD-2-Clause — https://github.com/openlayers/ol-mapbox-style
https://cdn.jsdelivr.net/npm/ol-mapbox-style@13.8.0/dist/olms.js
Roboto regular Latin/Latin-ext, @fontsource/roboto 5.3.0 — SIL OFL 1.1.
https://www.npmjs.com/package/@fontsource/roboto
See vendor/ol-LICENSE.md, olms-LICENSE.txt and ROBOTO-WEBFONT-LICENSE.txt.
Fonts, sprite and style are served from the same host; no external font API.
No WebGL, API key or user account is needed for vector display.

DXF-scaffold gegenereerd met ezdxf 1.4.4 (MIT, https://github.com/mozman/ezdxf). Geen Python-runtime nodig in de app.
XLSX-stijlen aangemaakt met @oai/artifact-tool; OOXML-export lokaal verpakt met de bestaande fflate-bibliotheek.