To Mark Danks,
Thank you very much.this makes perfect sense and it works to a point but I'm not sure how to create the single buffer u mentioned , perhaps with a little more time i while. i really want to make a trail of points.
Am I correct in assuming that if i want to plot points
as small as one tenths I simply make a square of side .01. this seems to be the smallest dimension visible.
thanks for ur help Rory
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