In the east, you can get maps to the oceans around the East Indies, and to Indochina and parts of China and Japan including their centers of trade (CoT). Map swapping is most useful for Sunni Muslim countries, because you can easily get +125 relations with any Sunni country, and they have maps to most of the Old World. Your partner gains all of your maps, except unsettled provinces. You do not gain knowledge of unsettled land provinces. On a successful mapswap, you will gain knowledge of all sea zones which the other country knows of, and all settled land provinces.
Also, AI countries which have begun exploration and colonization typically will not trade maps. you have at least +100 relations with the other countryĬertain countries are 'paranoid' and won't exchange maps with only +100 relations I don't know if it can be done with higher relations.you know of at least one province that is not known to the other country.It will usually succeed if these two conditions hold:
Map swapping is a diplomatic action: it costs only a diplomat. The cheapest and easiest way to get maps to much of the world is map swapping.
