Add tips about where to find more shapefiles about aerialbot HOT 2 CLOSED

Sadly, the shapefiles you've linked aren't of the type that ærialbot expects. I've thrown the Sweden ones into mapshaper.org and noticed the following:

• They contain multiple records per file, but this could be fixed with mapshaper as described here.
• The projection isn't based on latitude and longitude, but this, too, can be fixed.
• Yet most importantly, these shapefile contain differently-scaled variants of the EEA reference grid corresponding to the countries. This grid doesn't follow coastlines or borders – in fact, it includes "at least country borders - plus 15km buffer - and, where applicable, marine Exclusive Economic Zones v7.0 - plus 15km buffer".

If you

1. can find a different set of shapefiles that are published under a license that allows inclusion in this repository and
2. are willing to do the work of coercing them into the correct format if required,

please feel free to send a pull request! However, it's usually fairly easy to find shapefiles of country borders by searching¹ for "shapefile borders" or similar, so it's probably not all that useful to preemptively add shapefiles that no one might ever use. What's more, the existing example shapefiles are probably sufficient for demonstration purposes.

Your suggestion of mentioning shapefile sources in README.md is good, though – I'll definitely add a section on that soon, thank you!

¹ While performing a search like that, I just came across this page which appears to have shapefiles for all countries – and they seem to be ready for use with ærialbot out of the box (but I haven't tested that yet). Their license, however, doesn't allow redistribution, so I can't include them in this repository.

from aerialbot.

Thanks for an answer and extra details!

I have tried to use shapefiles from my link and saw the issues you have named. The shapefiles on GADM are different and work from the box.

from aerialbot.