Hello Fer: Yes, I've seen the eotgraph.bas macro program for Delta Cad. This program only allows the user to change the year; it does not let allow changes in the line separation distance, date increments, and minute increments.
I have seen many different EOT graphs with different shapes. Sometimes the curve has a tall amplitude and sometimes it is flatter depending on the horizontal minute line, and vertical date line separation distances. When designing a sundial, sometimes blank available space for an EOT graph on the sundial face is limited to a certain size and shape. It would be nice to be able to design EOT graphs of different shapes for this reason. Adding beads and text and changing the size, of course, is very easy with Delta Cad. However, it doesn't allow you to change the SHAPE of the curve. Thanks again Fer for your comments. John >Hi John, > >I would be pleased to receive your Deltacad program for "beaded EoT graph". > >There is a Deltacad program "eotgraph.bas" in the file programs.zip that can >be downloaded from the site of the NASS. >This program draws the basic EoT graph for any year you want and perhaps you >can rewrite the program to add the wanted beads. >In that case you may choose your graph for a certain year. > >Best wishes, Fer. > >Fer J. de Vries >[EMAIL PROTECTED] >http://www.iae.nl/users/ferdv/ >Eindhoven, Netherlands >lat. 51:30 N long. 5:30 E > >----- Original Message ----- >From: John Carmichael <[EMAIL PROTECTED]> >To: <sundial@rrz.uni-koeln.de> >Sent: Wednesday, November 08, 2000 4:27 PM >Subject: beaded EOT graph available > > >> Hello All: >> >> About a year ago, Tony Moss made some beautiful 4 x 8 inch bronze Equation >> of Time plaques for me. When we were working on their design, I >originally >> wanted them to have horizontal lines of one minute increments and vertical >> lines of five day increments. This made a graph which was very busy with >way >> too many closely spaced lines, so we ended up using horizontal lines of >five >> minute increments and vertical lines with 5 day increments. >> >> To avoid using so many lines, I recently designed a beaded EOT graph with >> beads on the curve representing dates at ten day increments, and >horizontal >> lines with one minute increments. I also indicate the solstices and >> equinoxes with larger beads. This version is attractive, precise and very >> easy to read. >> >> If anybody would like my original Delta Cad file (14.2 KB) of my beaded >EOT >> graph please tell me and I'll send it as an attachment. (note: you must >have >> Delta Cad to view this. Unfortunately,I tried converting the DC file to >> GIF, JPEG, and BMP files, but for some reason the beads don't show up in >> these formats). >> >> Best >> >> John Carmichael >> Tucson Arizona >> >> p.s To draw this graph on Delta Cad, I went about it in a roundabout way. >> Because there are no programs available for drawing customized Delta Cad >EOT >> curves, I scanned the EOT graph in the Shadows generator program and >placed >> the scanned photo in DC. Then I traced over all the lines, added some nice >> text and borders, then erased the photo. >> >> pps. It would be nice to have a DC macro which would allow the user to >draw >> customized EOT graphs with different time and date increments and >different >> allowable spacings between these lines. This way, you could make EOT >curves >> of different sizes and shapes which would be convenient for adding to dial >> faces that have limited available free space. >> >> > >
