Factorio Forums

Am I right — judging from my map "experiment" (I'm close to redoing) of leaving all ore settings at default, and RSO's default save for Region size upped to 50 (yup, I'm crazy ) and Resource chance upped to .7 — that "distance" means "distance in regions"? I get a copper patch of 672k about 100 chunks out from origin…

Map exchange if you want to check:

>>>eNptUb9Lw0AUfq9p/FFFinQpijh0rYqKkzQnCA7+A3URYnOVQJtI
0g7q0A4VLAiCiKBLnVwEd3ERuygqCE5ulS4ODkWha71L7ppS/ODefe9
9ufcrAFFIQAiU0Gg4Y+s5RVEiGXtnhzpJ26HMG844RYMmbZNLAwZ1qV
NgLGyY3h2hFs3vJrd0lyKguu3orsvCQ6ZjWyJD2NUtg92qW7AtHlALD
qWuEsKRoqNbZjEvPgQ0J5RquTIF/HRKMNfp8MPYG4B3GMKALCChZnJm
NgtQXgWYXkHE/djN2ufeqYa+PkMEaYlI+k5EGgeCpK8FOawLQmqSlCQ
5Jrjg4VcLiF+rwDKLIkMkIL5Y4SLi+MlPubZ5lULZN54tzepr7ecUEy
PcD3XNxTnHrZwAZM6GJqQPDV9fOL41/22cm/t1tkDSHAaMjjH38oiZ6
UmQraVkmhjBrIe2nKQpybvWP0eC4DJPPsXNIzcqdFOyzlDQDeIL8UBl
T+eht7wRDPckK9Z7Svf1kJA9LJJ/RuiLJHoW763E6JovpdsE2+DboPT
Yv1UgQEt7SM5X/wCkdI0l<<<

You made me check but you are correct.
Distance for richness calculation is in regions.

If you go with huge regions then I would recommend increasing both richness and distance exponents. Exponents go only up to 3 currently - might not be enough. Region size 50 is not really... supported
I would also recommend making multiplier for starting area higher and resource chance at 1 - if you are unlucky and water eats a resource patch with scale like this you'll have a lot more travelling.