John, My French is not what it once was, but I think an épure is just a working drawing.
Jim James E. Morrison Astrolabe web pages at: http://myhouse.com/mc/planet/astrodir/astrolab.htm ----- Original Message ----- From: John Carmichael <[EMAIL PROTECTED]> To: <sundial@rrz.uni-koeln.de> Sent: Friday, June 04, 1999 10:05 AM Subject: epure > Hi Dialists: > > I'm halfway through reading Rohr's sundial book for the first time. In > laying out hour lines for many types of sundials, Rohr uses a devise called > an "epure" (w/ an accent mark over the last e.). He assumes that the reader > knows what this is. From the context I think it must be some sort of > drawing tool or something like a trigon, but I'm not sure. Does anybody > know? Is it still used by any of you? Supposedly it aids in laying out > hour lines using graphic methods, but many of Rohr's drawings are so > complicated, that they are very difficult to understand. > > I'm so glad that my first sundial book was the easy to read Mayalls' book. > I think that if I had started with Rohr I would have given up! > > Thanks, > > John Carmichael > http://www.azstarnet.com/~pappas > >
