Hello, I'm new to maps and cartography and have been studying with some curiosity what seems to be a navigation aid in some old maps. Who subs for latitude and longitude appears to be numerous compass roses or maybe even wind rose lines. See an example here (from, admittedly, a fictitious map). What is this used for and how does it work? Thanks!
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Posted 18 November 2010 - 12:02 PM
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