blr-yesterday

The code that powers BLR Yesterday

Develop

• Install dependencies with pnpm install (or npm install)
• Start local dev server with pnpm run dev (or npm run dev)
• Build site deployment assets with pnpm run build (or npm run build)

Planned

• Map
  • Allow quick switching/comparison between any 2 years
  • Preload adjacent years/tiles
• Images (Migrate https://otd.vonter.top)
  • Atom feed
  • Search feature
  • Custom annotations
  • Location metadata to use on map
• Other
  • Gazette
  • Reports
  • State Archives

Maps

The maps have been sourced from multiple places:

• 1790: https://artsandculture.google.com/asset/bengaluru-karnataka-robert-home/KgF0MfabwOrhJg
• 1840: https://commons.wikimedia.org/wiki/File:Plan_of_Bangalore_Cantonment_1843.jpg
• 1850: https://commons.wikimedia.org/wiki/File:Bangalore_1854_Pharaoh_hires.jpg
• 1880: Mod Foundation archives
• 1900: https://britishlibrary.oldmapsonline.org/maps/5c5f6ea9-8f24-5df6-9fc1-ad11ecfbcdc1/
• 1910: https://www.raremaps.com/gallery/detail/55788/map-of-country-10-miles-around-bangalore-anonymous
• 1940: https://umedia.lib.umn.edu/item/p16022coll246:577 and Mod Foundation archives
• 1960: Mod Foundation archives
• 1980: Mod Foundation archives
• 2000 (City): Bengawalk
• 2000 (Region): Bengawalk
• 2005: https://www.arcgis.com/home/item.html?id=903f0abe9c3b452dafe1ca5b8dd858b9
• 2015: https://www.arcgis.com/home/item.html?id=9badc1f6b6a64a609a87fc75e8a6b083
• Today: https://www.arcgis.com/home/item.html?id=10df2279f9684e4a9f6a7f08febac2a9

The scanned maps are made available on the site using the following steps:

1. Georeferenced using the Georeferencer plugin for QGIS.
2. Exported to GeoTIFF format.
3. Saved as XYZ tiles using gdal2tiles
4. Uploaded to an R2 Bucket on Cloudflare.

If you'd like to contribute a new map, create an issue with details about the map.