Sunny Day! The attached message was sent by Valentin Hristov yesterday but it appears it did not make it to the list. This may be because it contained a small ZIP file that contained the macro files. Perhaps the system does not allow messages with this type of file to pass.
In any case, this is another exciting DeltaCad macro written by Valentin. It is quite interesting as it uses a couple of data files to introduce the information required to create the drawing. You can get these macros at the Valentin's web page. The link is provided in his email below. Carl www.mysundial.ca -----Original Message----- From: sundial-boun...@uni-koeln.de [mailto:sundial-boun...@uni-koeln.de]on Behalf Of Valentin Hristov Sent: Monday, August 31, 2009 2:25 AM To: sund...@rrz.uni-koeln.de Subject: New DeltaCad macros Dear sundial friends, I want to announce that two new DeltaCad macro files for use in the Northern hemisphere are put on my page (go almost to its bottom) www.math.bas.bg/complan/valhrist/mystuff.htm. I am very grateful to Carl Sabanski for giving me the idea of these macros. StarSun.bas is an extension of my previous macro StarClck.bas with much more stars (900) and the positions of the Sun among them for every date in the year (the ecliptic). This allows to find the time if you know the azimuth or the height of the sun, and vice versa, if you know the time, you can find the azimuth and the height of the sun. You have to print the two layers separately (the one with the azimuth-height grid on a transparent one). Please, read instructions for use in the beginning of the file. StarSunZ.bas is as the previous macro file with added drawings of the zodiacal constellations ("Z" for zodiac). In such a way the construction resembles an astrolabe with only 15 constellations drawn. Principally, I can continue drawing the missing constellations, but this is a boring work. Therefore I put in the .zip file an auxiliary file StarSunT.bas. It shows the line numbers of all stars in the file stars.dat and these numbers are used in the file conlines.dat to indicate all segments in the drawings of the constellations. If someone is enthusiastic to continue drawing more constellations, I can share my experience in personal e-mail messages. As an example, the "belt" of Orion (seen at the celestial equator labeled 0 in the lower part between 5 and 6 hrs) consists of stars numbered 46, 27, 72 (the numbers are seen after enlarging) and the two segments connecting them can be described in conlines.dat simply as two lines 46 27 27 72 Let me note that you have to keep the files stars.dat and conlines.dat in the same directory with the macro files StarSun.bas, StarSunZ.bas and StarSunT.bas. Hope you will enjoy the new macros. Any feedback will be highly appreciated. Best wishes and more sunny days! Valentin P.S. Let me mention that you can use a drawn protractor for measuring the height of the sun from my previous macro "Sun position" (az-ht.bas). --------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
