City chunk building generation

[mbforbes]

Worklist:

• [x] find appropriate lat, lon range to auto chunk map segments into
• [x] find appropriate pixel range for that as well
• [x] write osm → txt python code
  • [x] write with format prefix;points or something like that, so processing can pick color
  • [x] write two files (e.g. in dirs A and B), where A omits buildings
• [x] write processing rendering code
  • [x] render everything in file
  • [x] pick nice color scheme :-)
• [x] fixups
  • [x] fix y flipping if needed
  • [x] fix out-of-bounds pixel drawing if needed

data collection

• [x] partition osm data into folders so it's clear what will be used for train/test/val
• [x] get more data until N is reasonably high enough; probably need to use mirror
  • [x] find reasonable city range
  • [x] write script to curl @ lat, lon ranges within the region
  • [x] run osm python script to generate txt files
  • [x] run processing script to generate to pairs of images

[mbforbes]

Finished.