About this project

Win Archive Map is an interactive web application for exploring the Bildarchiv Winterthur image archive. It places historical photographs of Winterthur on a Leaflet map with marker clustering, and provides filters for title search, street (with autocomplete), district, neighbourhood, and year range. A timeline slider switches between historical map and aerial imagery layers from swisstopo, covering 1850 to today. District and neighbourhood boundary overlays are included, and clicking an entry shows its metadata plus related articles from the Winterthur-Glossar. The project uses vanilla ES modules without a framework, Leaflet and Leaflet.markercluster for mapping, and esbuild for bundling. Archive data is split into GeoJSON and JSON files so metadata and coordinates can evolve independently: entries.json holds photo records, addresses.geojson contains unrolled house points, and locations.geojson provides POI data for photos without addresses. Python scripts using Playwright, BeautifulSoup, and httpx handle scraping, geocoding via geo.admin.ch, district updates, and glossary synchronization. The app is published to GitHub Pages and licensed under MIT.