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I guess the Ordnance Survey doesn't use a Mercator projection, so grid north and true north are only identical along a vertical line passing through the middle
by ummonk 4y ago
I guess the Ordnance Survey doesn't use a Mercator projection, so grid north and true north are only identical along a vertical line passing through the middle of their map?
- rawling 4y agohttps://en.wikipedia.org/wiki/Ordnance_Survey_National_Grid#/media/File:Ordnance_Survey_National_Grid.svg https://en.wikipedia.org/wiki/Ordnance_Survey_National_Grid#... Looks like!