Barry, would you explain why you use so many coordinates for the ends of lines, please? I cannot understand why you don't just need a pair of coords for each line. I'm sure there is a reason, I'm curious.

Martin
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Best wishes, Martin www.martinhwatson.co.uk/puzzles.html Google Earth - Much more fun than having to go there!! Fewer rights - More responsibilities!! Locations of IKEA shops are boring posts