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Ordnance Survey historical Cassini projection

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#1
david17tym

david17tym

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Happy Friday afternoon everyone,

Does anyone know the parameters for this? Do they vary across England and Wales?

I'm trying to recreate in ArcMap.

Thanks,

Dave



#2
Melita Kennedy

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If you have a first edition of Coordinate Systems and Map Projections by Maling, it might have the complete information. The 2nd edition has a map of the entire country with the general origins of each system. There's a country-wide Cassini, and then county-level ones. Cliff Mugnier has the values here: http://www.asprs.org...itedkingdom.pdf

 

Melita



#3
david17tym

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Thanks Melita, totally slipped my mind to check Cliff's excellent Grids and Datums series.

Have a great day.

Dave






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