Rather then getting the data from a navigation chart I thought that there could be a list of lighthouses and data online somewhere. I checked the website for the organization that runs and looks after the lighthouses but the was only a small clue that there could be a list somewhere.
https://www.nlb.org.uk/
They advertised a lighthouse library that failed to load. However they noted the source of information as "Admiralty List of Lights and Fog Signals". This would be the next challange to find online.
https://www.nlb.org.uk/LighthouseLibrary/Main/
I found a pdf online which lists ever lighthouse and beacon in Briton. Including there location, light characteristics, height and range. All of which will be useful for creating a variety of images.
http://www.waypointamsterdam.com/Handy_stuf/Pub114bk.pdf
Unfortunatly the data has to be in a spreadsheet to be read easily. So began the long task of typing in a lot of data into a spread sheet.
600 lights later and the results are starting to show.
