I have one question about ZONWPLT. I use the program to produce model sundials on paper. The lines for the gnomon are very helpful to make the model because the dial and gnomon length are drawn to the same scale. But with a bifilar dial with two threads, no lines are drawn. Is there a simple way to know the length of each thread for a scale dial that is drawn?
I cannot praise Fer J. de Vries enough for such a fine quality tool for drawing dials. By the way, I hope everyone that attended the 2nd annual NASS meeting in Toronto enjoyed it as much as I did. I appreciate all the time and effort of Fred Sawyer, Harold B., Phyllis, and everyone that contributed. My brain was on overload for three days. We sure had a diverse group present that made for a very interesting weekend. Sincerely, Warren Thom
