CHANGES main update or reference page
2020 no changes so far
2018, 2019 no changes
2017 trivial spreadsheet improvements,
Lino Cut book greatly enhanced
2016
Astronomically correct EOT tables minor bug fixed, so
main spreadsheet ASTRO EOT updated, appendix 2
EOT tables for 2016 through 2016, and the separate
EOT tables also updated.
Also the new book on Lino and Wood cuts added.
Wide gnomon work both as documents as well as
DeltaCAD macro support.
Also, OpenSCAD both as a downloadable program as
well as an online app.
2015
The smartphone almanac spreadsheet is even simpler and better at auto updating fields on a change (Oct 11,
2015) The TurboCAD TCW files page has been removed as they were for older versions. The TurboCAD scripts and
special TCW files such as the solar mesh remain. Fixed a couple of links on the astro compass page. Typo in
smartphone almanac xls fixed, main spreadsheet illustratingShadows.xls also updated and main page has numbers
for English, Roman, Persian, and Hebrew as a reference. Corrected a comment on the choice 8 menu for
DeltaCAD vertical dials (vDec). TurboCAD and Excel (XLS) pages better laid out, wood and lino cut page added.
Minor improvement to smartphone almanac spreadsheet.
2014
mostly building dials up in Prescott AZ. Updated links for England and Australia re national curriculum
covering sundials. Supplemental Shadows is once again free to download. A small 4x4 wood cube dial made, but
instead of specific dial plates as is usually done, photos of actual dials the author has made were used, see notes
on the cube dial page. The Cubic Shadows booklet has been revised to correct spreadsheet names, and add two
cube dials made using photos of the author's large out door dials. Appendices (free) updated, no significant
change. IBM 1401 simulator recompiled and tested, only change was to the default file name for the autocoder
source code file name; the default hDial autocoder program has slightly better final printout notes.
Supplemental Shadows is no longer free, it is included with the download of the big book "Illustrating Time's
Shadow". Minor housekeeping on the website. Moved less used stuff from the main page. prices simplified. Added
a three page article on using altitude (and azimuth) dials at other than their design latitude. Main spreadsheet
detects longitude signs on main page (+ west)(- east) and advises on a sign mismatch. IBM 1401 youTube video url
added as well as one for the IBM 360. Link fixed for EOT article in the EOT page, The separate CD is no longer for
sale, the sole option to get the book now is the online download, or, the actual printed books. The printed big book
still comes with a CD of everything on this website. more language comparisons in the Programming Shadows
book. New ISBN and Library Congress numbers for the four books, Illustrating Time's Shadow, Supplemental
Shadows, Programming Shadows, and, the Appendices. The Android spreadsheets now have an additional
expanded Almanac and an additional expanded Astro Compass sheet; slower, but more refined data. Added more
pages on programming language comparisons and techniques to Programming Shadows, free on this web site.
Programming Shadows also has the C# section added, and a section on type casting or conversion, now over 400
pages! Added an hDial using justBASIC with turtle graphics. Added C# (C sharp) console, forms, and graphics
versions of an hDial along with notes on the latest Microsoft C# Visual Studio 2013 which is free. The Visual Basic
programs (VB Express, and NET 2003) are updated to Visual Studio 2013. Added an hDial in pure Java (from
scratch) along with notes for the free Eclipse IDE for Java, as well as notes on the free jIgloo forms GUI for Eclipse.
Perl macros for hDial and vDial, the hDial macro displays graphics. Dropped the Palmpilot stuff and its Pocket C (I
wish Pocket C was available on the Android),that kind of focus in the future will expand on the smartphones, such
as the Android, or Apple thing. Programming Shadows updated with Perl notes and helpful Perl explanations as
well as an OOP implementation of an hDial (text, not graphical). Notes on a C++ IDE that works on Windows 8
added to CPP page and CPP notes, along with some more dial programs (textual output). A C program using old
fashioned mainframe graphics output also. And for no good reason, I added a FORTRAN program to show the dial
in old fashioned graphics, like the C++ one. And while at, a Pascal program with old style graphical depiction.
And an Algol program with the old style graphics from the 1960s also! Programming Shadows is now free for you to
download and has been re-sequenced and article cross references added.
2013
Oct-Dec: Powerdraw Macros for h, v, p, mDials and vDec also, displaying the gnomon, and hour line angles; this
required a SIN, COS, TAN, ASN, ACS, ATAN, and SQRT algorithm to be developed (sin, cos, tan now good for
-360 to +450 degrees). Also, calendar or declination curve macro added. Powedraw is not well documented, but
does work well with these macros and trig functions. Supplemental Shadows also has a section on the
mathematical series for sin, cos, tan, asn, acs, atan, and sqrt, for implementation in a system that has no such
functions such as Powerdraw; also a note or two on programming issues for Italian lines. EOT tables added to 2020,
updated master spreadsheet for EOT in a leap year. FAQ added on EOT signs and why sundial users use a sign
opposite to that used by astronomers, as well as my ongoing rant about magnetic declination as opposed to
magnetic variation which I personally prefer). DeltaCAD macro for hDials, vDials, pDials, and mDials also now also
supports Italian hour lines (as hours UNTIL sunset), technically Italian hours are hours since the last sunset. Dial
Furniture macros also support Italian lines for h, v, p, m dials. Added three examples/variations of the graphical
method for a horizontal sundial in SIMPLE SHADOWS. Also minor tidying up of pictorials on pages 104, 105, and
106 of the big book; not errors, only cleaning up things. Added an hDial hr.ln.angle to hour in main spreadsheet.
Tested the latest NanoCAD 5 release and updated the notes accordingly.
Jly-Sep: main spreadsheet illustratingShadows.xls emphasizes Julian Day input is day of year vs astronomical
Julian Day, also added a user specific EOT table (EOT and longitude correction) for a store bought dial on the
main index work sheet (requested by some Farmer's Almanac users), and a few related minor changes. FAQ page
updates re a note on EOT differences in the master spreadsheet. Android X11 Basic almanac now shows user
lat/long and prompts cleaned up. Files in the big main book folder online here www.illustratingshadows.com/b3
cleaned up and old files removed. Added an FAQ about page 157 of Illustrating Time's Shadow, to clarify what
sorts of information are discussed on that page. The page is correct, this just emphasizes a couple of points.
Apr-Jun: answered a math question in FAQ page. Updated python notes to show that both FreeCAD and Blender
use python as a scripting language. A 3d printer printed sundial notes and files, also included in Supplemental
Shadows. Check dial number 772 on the NASS registry of sundials, I made this for the AZ Centenary project. For
no good reason at all here is a free BASIC hDial and almanac and link to a free BASIC interpreter for the Android,
this is X11-BASIC and it also works on Windows. Online vDial now has calendar or declination curves added, and,
vDec online tells you to use the calendarCurves program for adding declination curves to a vDec, as in chapters 16
and 23 of the big book. Added a java script program to display your latitude/longitude (if you give it permission),
IE9 and Firefox and smart phones (can be slow on smart phones). Privacy pages state that if you let your
latitude/longitude be displayed, it is NOT saved nor is it shared, you alone see it. Online dial designer hDial and
vDial and vDec (java script) can now get your lat/long/ref location. NanoCAD is a free programmable and drafting
CAD system, vDial, hDial, and vDec dial programs in VBS with calendar curve depiction as well as a nice hDial in
javaScript. Supplemental Shadows updated with very simple hDial, vDial, vDec dial calendar or declination curve
logic, great pictures. Also chapter 23 of the main book updated. Adding QR codes into printed and online books so
your smart phone can quickly go to the relevant web reference page. Main web page has ALMANACs,
HORIZONTAL, VERTICAL, and VERTICAL DECLINER online calculators, they use Java Script so no malicious
code, and links are here. The online hDial, vDial, and vDec dial generators can show graphics on up to date Java
Script enabled browsers. The graphical versions work on Android cell phones, and IE 9 and Firefox on PCs.
Programming Shadows book (available to those who have my book, CD, or online download) has a revised up to
date Java section, over and above new Java Script section, and some pure Java programs added with
"HOURLINE" as a class with methods for h, v, and vDec dials, etc. Excel Astrolabe work sheet and astrolabe macros
for DeltaCAD explain "earth radius" is only for scaling purposes, and should be left at 1 (or less) unless rescaling is
needed (not just desired!).
Jan-Mar: Renamed appendices files and files and the main book files, should be transparent as I updated all urls.
Dial furniture DeltaCAD macros added ASR1 to meridian west dial macro, and altitude and azimuth data.
DeltaCAD almanac has ASR also. FreeCAD vDec, vDial, hDial depict gnomon graphically. FreeCAD almanac,
pDial, mDial also have asr1 data. FreeCAD hDial, vDial, and vDec dials have calendar curves, sDial (Shepherd's
dial), and zDial (Winged azimuth) dials added, as well as the cDial (Cappucin). The FreeCAD booklet in the zip file
has examples of all the dial program output. The booklet Cutting Shadows has a south England cutout popup dial
added. TurboCAD parametric script models are updated. Trivial improvements to azimuth, shepherd, astrolabe,
and cappucin DeltaCAD macros. FreeCAD notes have an interesting comment on why the FreeCAD azimuth dial
differs from the DeltaCAD macro, and why both are correct! NOTE: I have hDial, vDial, vDec, pDial, and mDial
dialscripts for FreeCAD; which uses Python, this is an excellent free CAD system that is programmable. NOTE:
Blender is a free full CAD system, and is programmable using Python, scripts for hDial, vDial, and vDec dials are
here. NOTE: The updates and corrections file is updated. NOTE: Programming Shadows has been completely
revised, is 250+ pages and shows how to install programming systems, IDEs (integrated development environments)
and methods of doing graphics in many language systems, and the logic in the ASR, ALT, and AZI curves, systems
considered are such as: OOP, Excel, DeltaCAD (BASIC), FreeCAD (Python), JustBASIC, C, FORTRAN, Algol, ADA,
Pascal,COBOL, Lazarus, Visual Basic (Envelop, Express, .NET), JAVA, TurboCAD (VBS, and Parametric Script),
Euler, Octave, SciLab, Python, LISP (progeCAD and AutoCAD), and Blender (a free CAD system) Python scripts,
Early computers (IBM 1401 autocoder), IBM 360 (BAL), and the IBM 7094 (FORTRAN II).
ProgrammingShadows.pdf is in the main book folder, and is full of great hints and techniques. NOTE:
Supplemental Shadows is now over 100 pages NOTE: progeCAD is programmable using LISP, for non commercial
use is free, and is an alternative to DeltaCAD, hDial and vDial scripts are here. Check the LISP page on this web
site. NOTE: The vDec dial DeltaCAD macro now has options for alt and azi data, and ASR prayer times, and
calendar curves, tested on DeltaCAD 8. Also a new option for the mDial macro. NOTES: Windows 8 tested and
works well with all my stuff. Because Open Office is fully compatible with Excel, the .ODS files are being
obsoleted. The MSworks 95 spreadsheets .WKS are obsoleted also. The main spreadsheet illustratingShadows.xls
has been simplified.DeltaCAD 8 ~ with the Feb 12, 2013 patch ~ worksDeltaCAD 7 ~ with the 2013 patch ~ the
large macros will crash DeltaCAD: DeltaCAD 7 ~ without the 2013 patch ~ works, The book 3 supplement has good
stuff on two different vertical decliner formulae derivations, the old wive's trick (where it does and does not work),
the three different kinds of declination, and some interesting notes on LAT to STANDARD to STANDARD MEAN
TIME, and on Mass or Scratch dials and Saxon dials. The supplement also has an article on dial furniture
summarizing earlier stuff and adding new stuff for altitude and azimuth depiction. And a section on asr (Islamic)
depiction on a dial. More material that lies between the book and the appendices will be added as time goes by.
DeltaCAD macros for horizontal dials choice 3 now has altitude circles and azimuth lines as optional dial furniture,
and the vertical dial macro choice 7 now has azimuth lines and altitude dots. The main spreadsheet (xls and ods)
and smartphone almanac sheets now display the ASR start time, and DeltaCAD macros depict ASR1 and ASR2
information for hDials, vDials, pDials, and mDials.
2012 iPhone and Android spreadsheets are not only in a ZIP file for you to PC download, but since the
Androids do not support ZIP files the smartPhone web page now has separate XLS files you can now download for
almanac, astrocompass, h-dial, v-dial, and v-dec dials. Also, because of requests, am doing a print run of the big
book andit is perfect bound (not spiral) and ready first week in January. Added Kingsoft as an alternative to
e-droid-lite as a free spreadsheet. Added DL to the vertical decliner spreadsheets for iPhone and Android and
docsToGo, and vdec sheets show not only hour line angle from the vertical, but also from the substyle. Better
picture for ch 16 page 137 see updates page. Also working on a new book of supplemental material, articles and
formulae proofs, etc. It is stuff that could be in the big book, or the appendices, but is best placed in a new book
called SUPPLEMENTS, complete with articles, and its own cover, do not confuse this with the supplements on this
web site which are short notes or short extracts for the sole benefit of web site users. Am working on a sundial for a
park in Phoenix, it will be an interesting case study. Changed notes in EOTandLONG worksheet, notes only, not
data Nov 16. Added to h-dial DeltaCAD macro a note on its main screen, no process change at all. How to depict
daylight saving time on a dial. Appendix 10 has notes on depicting summer time (daylight saving time). Page 335
of ch 30 last few paragraphs reworded to be easier to understand. Appendix 10 has list of all case studies on the CD
and www. All web urls in appendix 10 have been re-verified and updated. Smart phone pages uses links to .pdf and
to .xls and no longer to .ZIP files which iPhones and Android dislike. The book Micro Shadows now has a smart
phone formatted version, see the Android or iPhone page. Ditto for Simple Shadows, and Cubic Shadows: the
smartphone versions of these books ARE ABBREVIATED. Dial types in perspective added into appendices. Added
clarifying note to PDA/Android/iPhone almanac spreadsheet. Added a note to main spreadsheet when using a dial
at a location other than it was designed for. Also have illustratingShadows.zip which is the main spreadsheet in a
zip file because some ISPs clobber the .xls version on download. Main spreadsheet XLS and ODS transit worksheet
longitude improved. DeltaCAD v-dial macro typo in choice 7 final display on longitude (typo only, not bad data). A
couple of case studies updated with more plates. Testing a dial designed for one lat/long but at a different lat/long
(see case studies), and also notes added in appendix as the last couple of pages. P120 main book insignificant
typo. Minor tidyup of main spreadsheet (XLS and OLS), in addition to YOU entering the Julian day, you MUST also
enter the desired EOT (it shows you the current EOT, you simply enter it in a yellow box), makes tailoring some work
sheets much easier, quite a few people wanted this. Better prompts for this change also. Appendices page 20 mag
decl/var updated and notes added on magnetic declination change over the years. A couple of minor comment
changes. DeltaCAD v-dial and h-dial macros have user selectable solar declinations, no longer fixed. Minor typos
in calendar macros (invisible to users). Main big spreadsheet updated to warn if entered Julian Day is not within a
day of the actual current day. The printed book is available again. A couple of minor improvements to misc items.
Main spreadsheet shows good sun declinations for the ambiguous months, p277 in the main book updated with that
table also. ( 23.44, 20 to 18, 10 to 12, 0 ) The printed book is currently out of stock, unavailable. Please select the
online download or the CD and print it at any local copy shop. The case study page revised along with some other
pages so they will be more friendly on Androids and iPhones. TurboViewer is a free cell phone app, and I have a
few DWG/DXF files you can see in 2D and 3D, created in TurboCAD. You do NOT need TurboCAD to view these,
just use the free TurboViewer app for the iPhone or Android. The USA airmail prices overseas have gone up by
$10, I have no control over that, sorry, see Paypal page. Master spreadsheet added a note re JD, and very nice
Italian, Babylonian, and day length tables to simplify adding them to any dial. DeltaCAD macro for full calendar
curves has an added recommendation note, changed default lat/lng, h-dial improved also. Another h-dial case
study added. One minor typo, better spirit level for Android cel phone. New case study added. DeltaCAB v dial
macro improved notes for v-dec dial. Spreadsheets for the Android cel phone as well as notes on some useful tools
for the diallist such as a compass and level. Small PDA A0.0 spreadsheet azimuth table fixed, ok in all other
spreadsheets. e-Droid-cell Light spreadsheets for the Android, free, and it works, check my ANDROID page for
details. Appendices updated with e-Droid-cell in the section on spreadsheets. Nicer Android V and H dial sheet and
added vDec also, and astro compass. The main Excel and Open Office master spread sheet updated with a typo,
no change to any formulae or data.
2011 Minor aesthetic change in the almanac DeltaCAD macro. Case study added for PHX 40 inch across
vertical south facing dial. A refinement to the solar declination table in the appendices (not a correction, just a
refinement). Added words SUN FAST or SLOW to main spreadsheet main screen, minor aesthetics change in the
spreadsheet. DeltaCAD v-dial macros: MAIN-v-dials.bas and MAIN-v-dials[f].bas had a typo in choice 7, the legend
said LAT when it should show LAT and COLAT. Misc cleanup of messages. Main spreadsheet Excel/OpenOffice
easier to use for Italian and Babylonian hour lines on the sunrise/set sheets, which also use 4 average astro EOT,
hyperlinks for Open Office fixed. Almanacs for Phoenix and Silver City updated, more may follow. New case study
added for a ceramic floor tile used as a v-dial with Italian lines and a noon analemma, see CASE STUDY page.
Less used worksheets removed from main spreadsheet, eg v-dial analemma removed but the more common h-dial
analemma retained, they were mostly for educational purposes anyway. Also the pie graph hour line depiction
removed since all dial plates have true hour line depictions. I have finished with spreadsheet revisions Oct 25,
2011 :) ANALEMMA.BAS notes added re southern hemisphere, and analemma page on this site updated re N and
S hemispheres. PayPal page improved for overseas (non USA) purchasers. Updated Casio fx-9860G notes.
DeltaCAD v-dial macro - removed superfluous messages. The illustrating-shadows spreadsheets have been
renamed to illustratingShadows, the book, appendices and spreadsheet notes updated to reflect this. Major
reorganization and more consistency and more notes in Excel and Open Office main spreadsheet. Phoenix AZ
dial plate file updated with inclined decliner, see CASE STUDIES page. Split chapter 18 to chapters 18 and 19 for
the inclined decliner, no substantive changes. IBM 1401 notes updated, 1401 and 360 sims recompiled with
cosmetic improvements, no fixes done but loop ctr max in 1401 upped, SPS program hdial.sps now uses MU to
improve switch setting usage. New print shop acquired, printed book and appendices prices stabilized. If you print
your own from the CD or download, select a small local copy shop, not Alphagraphics who cost about twice what
small shops cost. Dial lettering for several languages in appendices. Third party comment on the TI-Nspire
programmable calculator. Main spreadsheet XLS and ODS updated. The "buy something" PayPal page simplified.
The original books (Illustrating Shadows and Illustrating More Shadows) are no longer on the CD, and are no longer
updated. If you bought them, you can download the current and final book Illustrating Time's Shadow for free, just
email me using your email when you made the earlier purchase. The Python IDE does not work on Windows Vista
64 bit, be aware. An Arabic vertical non decliner (see CASE STUDIES page), with a table of Arabic lettering for 0
to 12. Notes on the HP calculator, the HP 35S, and how to program it for a simple horizontal dial (see SOFTWARE
section of the main web page), also, the EOT is shown but using an EQUation as opposed to a program. CASIO xls
and notes revised for a better ALMANAC spreadsheet (see SOFTWARE section of the main web page) DeltaCAD
has a new: MAIN-calendar-curvesFULL.bas macro, misc minor improvements in other areas also. Minor changes
to powerpoints re true north locating.
2010 The Casio fx-9860G Slim graphing calculator has a spreadsheet function, and this page has some
helpful hints as well as an EOT, V-dial, h-dial, and decl/sunrise/set spreadsheet. The free appendices have been
updated in formula section with a simple way of telling if radians or degrees are intended. The master spreadsheets
.XLS and .ODS changed in the sunset/rise worksheets now the 5th, 15th, and 25th as opposed to the 1st, 10th, and
20th. Chapter 18 inclined decliners has two pages with minor spreadsheet simplifications, no substantive change,
but Excel, Open Office, and DeltaCAD inclined decliners much simplified and much improved for easier, less
involved, less complicated, more intuitive use. Two typos fixed, one in Cubic Shadows, one in Simple Shadows.
Minor improvements to the master spreadsheet (.xls and .ods) in sunrise/set, helps with Italian lines; and better
options for sundial relocation (EOT and LONG). Windows 7 works with most stuff, but for VRML you must
download the latest Cortona VRML plugin see here. *** NOTE: quickShadows.* has been renamed
to cubicShadows.* Also, new "cubicShadows.bas" DeltaCAD macro for no real reason except uses true quadrant
sensing using local apparent time, does 24 hours, and has an equinox line. It handles V and H dials, and M as well,
calendar curves, almanac, EOT, DECL and simple v-dec all in one macro. Online book of Illustrating Time's
Shadow is back at $10. *** NOTE: quickShadows.* has been renamed to cubicShadows.* as of July 24, 2010.
Minor Excel spreadsheet improvements. Appendices and main book very minor enhancements. Fixed
"calendarDeclination.bas" for DeltaCAD v6, symptom "TYPE MISMATCH", worked on v7 [June 13]. See CASE
STUDIES or Supplemental PDFs for two pdf files on gnomonless dials. Added an analemmatic dial page with
simplified analemmatic dial spreadsheets in Excel and Open Office. Added a test spreadsheet for the analemma
in the sky for flat and curved photos. May 19 ~ fixed analemma in the sky in Excel and Open Office. Revised
course PowerPoint, new teaching aid for hdial~equatorial dial relationship, Simple Shadows minor improvements.
H-dial template (class handout) added to free appendices. DeltaCAD version 7 changed how the MIRROR function
worked, partial fix in my macros. FAQ updated re the difference between DL and SD, and appendices adds that as
a formula also. More hours shown on Delta CAD choice 4 (vdec) of the vertical dial macro. Macros tested ok on
DeltaCAD version 7. If you have a problem, please re download the latest (some from April 2009 don't work on
VISTA, long since fixed). Appendices updates with alternative proof of SD and DL for v-dec dials. LAZARUS
programming notes updated with other FLOAT to INT methods. Minor improvement to PowerPoint presentations.
illustrating-shadows.xls and .ods main screen menus improved and de-cluttered, and cells are protected except for
ones you should change (ATL-T, P, P to select the un-protect feature in Excel, or ATL-T, P, S to select the
un-protect feature in OpenOffice). New spreadsheet "quickShadows" in Excel, OpenOffice, and MS Works, is a mini
version of the main spreadsheet covering most dialing functions. Also even more paired down versions for
simpleShadows and microShadows in Excel, Open Office, and MS Works. The SUNDIAL COURSES page updated
for Spring 2010. Micro, Simple, and Cubic Shadows simplified, and ZIP files for them have their spreadsheets for
Excel, Open Office, and MS Works (Win 95 version !) Book 3 appendices (free) updated, minor stuff, added picture
in appendix 1, now 170 pages. NOTE: Jan 19, 2010: quickShadows is one sheet and handles H, V, V-DEC, Q, A,
P dials with altitude and azimuth as well, and with graphs in the .xls and .ods versions, but not for the Win 95 MS
Works. It is so good that it also a sheet in the full spreadsheet "illustrating-shadows". New document called "Dials
Types In Perspective", see free pamphlets page. A nice one page pdf of the Dialling scales, cut, fold, and scales
are on the front, EOT, Declination, Julian day on the back.
2009 Analemma notes updated. What not to buy notes updated. Trivial xls/ods updates. A diptych dial for both
Phoenix as well as Silver City,built as courseware for a sundial course at WNMU. Main spreadsheet (xls and ods)
improved for wall declinations. Micro, Simple, Cubic, and Cutting Shadows minor updates. First of several
PowerPoint courses, Basic Sundials, with vrml and etc. Excel and Open Office now have spreadsheets with EOT
plus a longitude difference. Added a new page 18 to analemma.pdf showing a way of looking at northern and
southern hemisphere difference regarding the analemma.DeltaCAD and Lazarus nomograms now have the
analemmatic dial. Added another nomogram for sunrisw/set that is neither type 1, 2, nor 3 but uses a quadrant of a
q-dial. More proofs added to appendices. TurboCAD solar lighting mesh and notes revised. Easier to use. Chapter
16 on vertical decliners revised, this re-sequences the topics, and redoes pictorials and text (no corrections, only
improvements), same thing for chapter 18 on inclined decliners (no corrections, only improvements. More
declination curves added to meridian dials in DeltaCAD macro. The slide rule and the sundial, and the nomogram
with an H, V, P, and M sundial, also sunrise/set, and SD,SH, and D for the vertical declienr, with notes on using SH
and DL for a surrogate h-dial for a vertical decliner. Notes for the nomogram and a DeltaCAD nomogram macro.
The 3 vertical line, the N or Z, and the circular nomogram are discussed for sundials with examples.
"nomogram.bas" was running out of memory on XP systems, it is fixed. Lazarus/Pascal program, source and .exe,
for nomograms is included. Appendix 2 and 3 re-sequenced for better clarity and some booklets revised. Formula
A8.21a in book 3 and separate appendices needs a definition added. OPEN OFFICE files were being converted by
some ISP providers from .ODS to .ZIP and thus failed. So I have put them in one zip file and that downloads ok.
ALLDIALS a Lazarus/Pascal program now has small graph as well as large graph. IBM 360 and 1401 sim minor
refinements. Excel, Open Office, DeltaCAD support and notes for 3d-bobbin shaped and 2d EOT gnomons, and
dialplate EOT analemmas for armillary dials, equatorial dials, polar and meridian, horzontal, vertical, and vertical
decliner dials. All dials have a full dial plate display with hour lines, analemmas, and calendar curves. Added
Italian and Calendar curve pages along with analemmas, specifically as dial furniture on the web. The main
spreadsheets (XLS and ODS) and DeltaCAD macros for v-dec dials all provide DL as a value for use as described in
the analemma notes. Book 3 appendix more in formula and v-dec sections, proof of DL added. IBM 360 sim has
ddd 0-4095, 16K memory, easy to reconfigure, hints added. Figure A9.4 in appendix improved with reminders, no
substantive change. DeltaCAD notes updated with how to print a very large dial plate, or portions of one. Illustrating
Shadows 4th edition now the same book as the 2nd edition of Illustrating More Shaodws, and they became
ILLUSTRATING TIME'S SHADOW. Added design templates for h and v dials and calendar or declination curves
extracted from the free appendices. Added Excel and Open Office sheet for X and Y distances given an angle,
useful for large dials. ADA sundial program and source of free ADA (GPS GNAT) system. MSWORKS h, v, vdec dial
sheets. Book 3 Illustrating Time's Shadows available in print ($40+s&h), as well as on the CD ( $20 or $25), and
online also ($10). Prior purchasers get book 3 free online, use your userid/password, or email me if it has expired.
Better DeltaCAD page. Added a fully functional Algol 68 open source program for h-dials. All books online
downloadable each as a single file here. SEARCH facility added to web site. IBM 1401 sim trivial update. Excel
web page update re why nothing appears in the main spreadsheet menu until you enter a Julian day, and useful
spreadsheet notes added also. DeltaCAD macros with and without parm file now work on Vista win64 as well as XP.
VRML/X3D models page completely rewritten, covers old XP through Vista win64 systems, three free viewing
packages, when to use them, and how to navigate the worlds, and fix perceived problems, these notes are very
valuable. Free booklets Micro/Simple/Cubic/Declining/Cutting Shadows updated. IBM 1401 MA (#) and R/W/P
combos added. Lazarus notes updated for Windows Vista and win64. Palm PDA hotsynch with Vista notes. Revised
software page. A GUI open source IBM 1401 simulator and dial programs is working, see the IBM 1401 page. IBM
360 simulator improved. Euler notes updated with command to type after a load or, alternatively, how to get those
comments. And Euler animation improved. DeltaCAD, Excel, Open Office, BASIC, FORTRAN, C++, Pascal, and
Lazarus and IBM 360 and 1401 now tested on XP as well as Vista win64. Clarifying that Microsoft Office and Open
Office are NOT compatible when using the advanced methods my sheets use. VRML plugin Cortona works on
Vista win64 but it may crash the first time or two. Read notes on this page. A Lazarus/Pascal based IBM 360
simulator, GUI, assembler, linkediter, and executor running with a sample h-dial program, macros and SVCs. Notes
also. Ceiling dial completed, see case studies. Lazarus ALLDIALS EXE file added in the ZIP. Second IBM 1401
sim with autocoder added plus h-dial and SIN COS TAN COT ATAN MULTP code fully working. 1401 SPS hdial v4
updated. VB h-dial executable with graphics added. LAZARUS h and v-dial and v-dec programs with text and
graphics (for v-dec dial), LAZARUS is an open source close equivalent to DELPHI. Added an IBM 360 simulator
which assembles an h-dial BAL program and runs it.
2008 Noon transit in main spreadsheet. Ceiling dial in DeltaCAD. Book 3 appendix now here. NEW
TurboCAD Pro v15.2 supports parametric scripts PSE PPM, here is an h-dial using it and notes (easier than the
VBS system, and resulting dial plates redraw themselves if you SELECT and change their parameters). COBOL
progs: one using trig series, one using functions. Open Office (free) versions of the xls main spreadsheets in ODS
format added. Short summary of geometry and trigonometry as used with sundials. An IBM 1401 SPS program plus
free simulator, and one for the IBM 7094 and its simulator. IBM 1401 code for SIN, COS, TAN, COT, ATAN and
MULTIPLY. TurboCAD scripts and notes updated. More work on COBOL and notes on using KOBOL(r). Derivation
of v-dec (vertical decliner) hour line angles. Book 1 and 2 updated for online users. Notes and main spreadsheet
handling ceiling or reflecting dials, xls for appendices added, PDA xls and .PRC (stand alone programs) updated
also.TurboCAD minor additions. Calculating the Time of an old photo. Cappucin DeltaCAD. A 24 hour h-dial in
DeltaCAD, Roman/Arabic in some. DeltaCAD programs consolidated. DeltaCAD dial plate options, and 7 month
curves. FAQ noon lines. Minor improvements. Notes on DeltaCAD programming internals, methods, and
techniques. Programming, CAD, and other systems. C for the Palm Pilot (PDA) text and graphics for v and h-dials as
standalone apps. An almanac program. Octave h-dial, v-dial, and v-dec. Notes on the old housewife's trick.
DeltaCAD, TurboCAD, FAQ. LISP program for ProgeCAD, a free AutoCAD like system. SCILAB and PYTHON and
Euler graphic & animated dials. Excel for PDAs, EOT, calendar curves, analemma 8, inclined decliner, astrolabe,
graphs on the PDA.
2007 DeltaCAD stuff. BASIC programs. Pascal h-dial and v-dec, C, Fortran, and VB h-dials. VB and JAVA
graphics. JAVA, Visual Basic, C, Pascal, Fortran, etc notes. Main spreadsheet and eot sheet cross hyperlinked.
Astro compass , wall declination supplements rewritten, new spreadsheet makes work v easy. Solstice/Equinox etc
curves for any SH in DeltaCAD. DeltaCAD pole facing v-dec (case study) & VRML model (needs Cortona plugin).
Great-decliner DeltaCAD. N and S hemispheres for V, V-dec, and H dials. Improved DeltaCAD calendar. V-dec
Delta/Turbo CAD updated Source for all three VB systems. More DeltaCAD. COBOL h-dial program. DeltaCAD h &
v dial improvements. Improvements in computer programs. DeltaCAD bifilar dialUpdate main spreadsheet, also
E/W declining arrow dials on case study page.
2006 vrml animations, lighting in CAD, planispheric astrolabe, polarizing dial. Dipleidoscope. 3d
stereograms. What people are interested in. Sundials not to buy. Case studies. Spreadsheet has calendar lines,
Booklet on calendar lines. Spreadsheet has analemma, DeltaCAD h, v and m-dial programs, programming methods
for trig to code. Sundial Day proclamation. Clay dial plates. DeltaCAD macros with animation, shepherd & azimuth
dials. DeltaCAD for dual gnomon shepherd and tables. Illustrating More Shadows. DeltaCAD astrolabe improved,
and formulae notes.
2005 astro EOT, EOT 1904, 2104, 2004-2007, Formulae collections, TCW files, Gnomonless dial. Lunar
dials, Ecliptic dials, more vrml, nocturnal star dial
2020 no changes so far
2018, 2019 no changes
2017 trivial spreadsheet improvements,
Lino Cut book greatly enhanced
2016
Astronomically correct EOT tables minor bug fixed, so
main spreadsheet ASTRO EOT updated, appendix 2
EOT tables for 2016 through 2016, and the separate
EOT tables also updated.
Also the new book on Lino and Wood cuts added.
Wide gnomon work both as documents as well as
DeltaCAD macro support.
Also, OpenSCAD both as a downloadable program as
well as an online app.
2015
The smartphone almanac spreadsheet is even simpler and better at auto updating fields on a change (Oct 11,
2015) The TurboCAD TCW files page has been removed as they were for older versions. The TurboCAD scripts and
special TCW files such as the solar mesh remain. Fixed a couple of links on the astro compass page. Typo in
smartphone almanac xls fixed, main spreadsheet illustratingShadows.xls also updated and main page has numbers
for English, Roman, Persian, and Hebrew as a reference. Corrected a comment on the choice 8 menu for
DeltaCAD vertical dials (vDec). TurboCAD and Excel (XLS) pages better laid out, wood and lino cut page added.
Minor improvement to smartphone almanac spreadsheet.
2014
mostly building dials up in Prescott AZ. Updated links for England and Australia re national curriculum
covering sundials. Supplemental Shadows is once again free to download. A small 4x4 wood cube dial made, but
instead of specific dial plates as is usually done, photos of actual dials the author has made were used, see notes
on the cube dial page. The Cubic Shadows booklet has been revised to correct spreadsheet names, and add two
cube dials made using photos of the author's large out door dials. Appendices (free) updated, no significant
change. IBM 1401 simulator recompiled and tested, only change was to the default file name for the autocoder
source code file name; the default hDial autocoder program has slightly better final printout notes.
Supplemental Shadows is no longer free, it is included with the download of the big book "Illustrating Time's
Shadow". Minor housekeeping on the website. Moved less used stuff from the main page. prices simplified. Added
a three page article on using altitude (and azimuth) dials at other than their design latitude. Main spreadsheet
detects longitude signs on main page (+ west)(- east) and advises on a sign mismatch. IBM 1401 youTube video url
added as well as one for the IBM 360. Link fixed for EOT article in the EOT page, The separate CD is no longer for
sale, the sole option to get the book now is the online download, or, the actual printed books. The printed big book
still comes with a CD of everything on this website. more language comparisons in the Programming Shadows
book. New ISBN and Library Congress numbers for the four books, Illustrating Time's Shadow, Supplemental
Shadows, Programming Shadows, and, the Appendices. The Android spreadsheets now have an additional
expanded Almanac and an additional expanded Astro Compass sheet; slower, but more refined data. Added more
pages on programming language comparisons and techniques to Programming Shadows, free on this web site.
Programming Shadows also has the C# section added, and a section on type casting or conversion, now over 400
pages! Added an hDial using justBASIC with turtle graphics. Added C# (C sharp) console, forms, and graphics
versions of an hDial along with notes on the latest Microsoft C# Visual Studio 2013 which is free. The Visual Basic
programs (VB Express, and NET 2003) are updated to Visual Studio 2013. Added an hDial in pure Java (from
scratch) along with notes for the free Eclipse IDE for Java, as well as notes on the free jIgloo forms GUI for Eclipse.
Perl macros for hDial and vDial, the hDial macro displays graphics. Dropped the Palmpilot stuff and its Pocket C (I
wish Pocket C was available on the Android),that kind of focus in the future will expand on the smartphones, such
as the Android, or Apple thing. Programming Shadows updated with Perl notes and helpful Perl explanations as
well as an OOP implementation of an hDial (text, not graphical). Notes on a C++ IDE that works on Windows 8
added to CPP page and CPP notes, along with some more dial programs (textual output). A C program using old
fashioned mainframe graphics output also. And for no good reason, I added a FORTRAN program to show the dial
in old fashioned graphics, like the C++ one. And while at, a Pascal program with old style graphical depiction.
And an Algol program with the old style graphics from the 1960s also! Programming Shadows is now free for you to
download and has been re-sequenced and article cross references added.
2013
Oct-Dec: Powerdraw Macros for h, v, p, mDials and vDec also, displaying the gnomon, and hour line angles; this
required a SIN, COS, TAN, ASN, ACS, ATAN, and SQRT algorithm to be developed (sin, cos, tan now good for
-360 to +450 degrees). Also, calendar or declination curve macro added. Powedraw is not well documented, but
does work well with these macros and trig functions. Supplemental Shadows also has a section on the
mathematical series for sin, cos, tan, asn, acs, atan, and sqrt, for implementation in a system that has no such
functions such as Powerdraw; also a note or two on programming issues for Italian lines. EOT tables added to 2020,
updated master spreadsheet for EOT in a leap year. FAQ added on EOT signs and why sundial users use a sign
opposite to that used by astronomers, as well as my ongoing rant about magnetic declination as opposed to
magnetic variation which I personally prefer). DeltaCAD macro for hDials, vDials, pDials, and mDials also now also
supports Italian hour lines (as hours UNTIL sunset), technically Italian hours are hours since the last sunset. Dial
Furniture macros also support Italian lines for h, v, p, m dials. Added three examples/variations of the graphical
method for a horizontal sundial in SIMPLE SHADOWS. Also minor tidying up of pictorials on pages 104, 105, and
106 of the big book; not errors, only cleaning up things. Added an hDial hr.ln.angle to hour in main spreadsheet.
Tested the latest NanoCAD 5 release and updated the notes accordingly.
Jly-Sep: main spreadsheet illustratingShadows.xls emphasizes Julian Day input is day of year vs astronomical
Julian Day, also added a user specific EOT table (EOT and longitude correction) for a store bought dial on the
main index work sheet (requested by some Farmer's Almanac users), and a few related minor changes. FAQ page
updates re a note on EOT differences in the master spreadsheet. Android X11 Basic almanac now shows user
lat/long and prompts cleaned up. Files in the big main book folder online here www.illustratingshadows.com/b3
cleaned up and old files removed. Added an FAQ about page 157 of Illustrating Time's Shadow, to clarify what
sorts of information are discussed on that page. The page is correct, this just emphasizes a couple of points.
Apr-Jun: answered a math question in FAQ page. Updated python notes to show that both FreeCAD and Blender
use python as a scripting language. A 3d printer printed sundial notes and files, also included in Supplemental
Shadows. Check dial number 772 on the NASS registry of sundials, I made this for the AZ Centenary project. For
no good reason at all here is a free BASIC hDial and almanac and link to a free BASIC interpreter for the Android,
this is X11-BASIC and it also works on Windows. Online vDial now has calendar or declination curves added, and,
vDec online tells you to use the calendarCurves program for adding declination curves to a vDec, as in chapters 16
and 23 of the big book. Added a java script program to display your latitude/longitude (if you give it permission),
IE9 and Firefox and smart phones (can be slow on smart phones). Privacy pages state that if you let your
latitude/longitude be displayed, it is NOT saved nor is it shared, you alone see it. Online dial designer hDial and
vDial and vDec (java script) can now get your lat/long/ref location. NanoCAD is a free programmable and drafting
CAD system, vDial, hDial, and vDec dial programs in VBS with calendar curve depiction as well as a nice hDial in
javaScript. Supplemental Shadows updated with very simple hDial, vDial, vDec dial calendar or declination curve
logic, great pictures. Also chapter 23 of the main book updated. Adding QR codes into printed and online books so
your smart phone can quickly go to the relevant web reference page. Main web page has ALMANACs,
HORIZONTAL, VERTICAL, and VERTICAL DECLINER online calculators, they use Java Script so no malicious
code, and links are here. The online hDial, vDial, and vDec dial generators can show graphics on up to date Java
Script enabled browsers. The graphical versions work on Android cell phones, and IE 9 and Firefox on PCs.
Programming Shadows book (available to those who have my book, CD, or online download) has a revised up to
date Java section, over and above new Java Script section, and some pure Java programs added with
"HOURLINE" as a class with methods for h, v, and vDec dials, etc. Excel Astrolabe work sheet and astrolabe macros
for DeltaCAD explain "earth radius" is only for scaling purposes, and should be left at 1 (or less) unless rescaling is
needed (not just desired!).
Jan-Mar: Renamed appendices files and files and the main book files, should be transparent as I updated all urls.
Dial furniture DeltaCAD macros added ASR1 to meridian west dial macro, and altitude and azimuth data.
DeltaCAD almanac has ASR also. FreeCAD vDec, vDial, hDial depict gnomon graphically. FreeCAD almanac,
pDial, mDial also have asr1 data. FreeCAD hDial, vDial, and vDec dials have calendar curves, sDial (Shepherd's
dial), and zDial (Winged azimuth) dials added, as well as the cDial (Cappucin). The FreeCAD booklet in the zip file
has examples of all the dial program output. The booklet Cutting Shadows has a south England cutout popup dial
added. TurboCAD parametric script models are updated. Trivial improvements to azimuth, shepherd, astrolabe,
and cappucin DeltaCAD macros. FreeCAD notes have an interesting comment on why the FreeCAD azimuth dial
differs from the DeltaCAD macro, and why both are correct! NOTE: I have hDial, vDial, vDec, pDial, and mDial
dialscripts for FreeCAD; which uses Python, this is an excellent free CAD system that is programmable. NOTE:
Blender is a free full CAD system, and is programmable using Python, scripts for hDial, vDial, and vDec dials are
here. NOTE: The updates and corrections file is updated. NOTE: Programming Shadows has been completely
revised, is 250+ pages and shows how to install programming systems, IDEs (integrated development environments)
and methods of doing graphics in many language systems, and the logic in the ASR, ALT, and AZI curves, systems
considered are such as: OOP, Excel, DeltaCAD (BASIC), FreeCAD (Python), JustBASIC, C, FORTRAN, Algol, ADA,
Pascal,COBOL, Lazarus, Visual Basic (Envelop, Express, .NET), JAVA, TurboCAD (VBS, and Parametric Script),
Euler, Octave, SciLab, Python, LISP (progeCAD and AutoCAD), and Blender (a free CAD system) Python scripts,
Early computers (IBM 1401 autocoder), IBM 360 (BAL), and the IBM 7094 (FORTRAN II).
ProgrammingShadows.pdf is in the main book folder, and is full of great hints and techniques. NOTE:
Supplemental Shadows is now over 100 pages NOTE: progeCAD is programmable using LISP, for non commercial
use is free, and is an alternative to DeltaCAD, hDial and vDial scripts are here. Check the LISP page on this web
site. NOTE: The vDec dial DeltaCAD macro now has options for alt and azi data, and ASR prayer times, and
calendar curves, tested on DeltaCAD 8. Also a new option for the mDial macro. NOTES: Windows 8 tested and
works well with all my stuff. Because Open Office is fully compatible with Excel, the .ODS files are being
obsoleted. The MSworks 95 spreadsheets .WKS are obsoleted also. The main spreadsheet illustratingShadows.xls
has been simplified.DeltaCAD 8 ~ with the Feb 12, 2013 patch ~ worksDeltaCAD 7 ~ with the 2013 patch ~ the
large macros will crash DeltaCAD: DeltaCAD 7 ~ without the 2013 patch ~ works, The book 3 supplement has good
stuff on two different vertical decliner formulae derivations, the old wive's trick (where it does and does not work),
the three different kinds of declination, and some interesting notes on LAT to STANDARD to STANDARD MEAN
TIME, and on Mass or Scratch dials and Saxon dials. The supplement also has an article on dial furniture
summarizing earlier stuff and adding new stuff for altitude and azimuth depiction. And a section on asr (Islamic)
depiction on a dial. More material that lies between the book and the appendices will be added as time goes by.
DeltaCAD macros for horizontal dials choice 3 now has altitude circles and azimuth lines as optional dial furniture,
and the vertical dial macro choice 7 now has azimuth lines and altitude dots. The main spreadsheet (xls and ods)
and smartphone almanac sheets now display the ASR start time, and DeltaCAD macros depict ASR1 and ASR2
information for hDials, vDials, pDials, and mDials.
2012 iPhone and Android spreadsheets are not only in a ZIP file for you to PC download, but since the
Androids do not support ZIP files the smartPhone web page now has separate XLS files you can now download for
almanac, astrocompass, h-dial, v-dial, and v-dec dials. Also, because of requests, am doing a print run of the big
book andit is perfect bound (not spiral) and ready first week in January. Added Kingsoft as an alternative to
e-droid-lite as a free spreadsheet. Added DL to the vertical decliner spreadsheets for iPhone and Android and
docsToGo, and vdec sheets show not only hour line angle from the vertical, but also from the substyle. Better
picture for ch 16 page 137 see updates page. Also working on a new book of supplemental material, articles and
formulae proofs, etc. It is stuff that could be in the big book, or the appendices, but is best placed in a new book
called SUPPLEMENTS, complete with articles, and its own cover, do not confuse this with the supplements on this
web site which are short notes or short extracts for the sole benefit of web site users. Am working on a sundial for a
park in Phoenix, it will be an interesting case study. Changed notes in EOTandLONG worksheet, notes only, not
data Nov 16. Added to h-dial DeltaCAD macro a note on its main screen, no process change at all. How to depict
daylight saving time on a dial. Appendix 10 has notes on depicting summer time (daylight saving time). Page 335
of ch 30 last few paragraphs reworded to be easier to understand. Appendix 10 has list of all case studies on the CD
and www. All web urls in appendix 10 have been re-verified and updated. Smart phone pages uses links to .pdf and
to .xls and no longer to .ZIP files which iPhones and Android dislike. The book Micro Shadows now has a smart
phone formatted version, see the Android or iPhone page. Ditto for Simple Shadows, and Cubic Shadows: the
smartphone versions of these books ARE ABBREVIATED. Dial types in perspective added into appendices. Added
clarifying note to PDA/Android/iPhone almanac spreadsheet. Added a note to main spreadsheet when using a dial
at a location other than it was designed for. Also have illustratingShadows.zip which is the main spreadsheet in a
zip file because some ISPs clobber the .xls version on download. Main spreadsheet XLS and ODS transit worksheet
longitude improved. DeltaCAD v-dial macro typo in choice 7 final display on longitude (typo only, not bad data). A
couple of case studies updated with more plates. Testing a dial designed for one lat/long but at a different lat/long
(see case studies), and also notes added in appendix as the last couple of pages. P120 main book insignificant
typo. Minor tidyup of main spreadsheet (XLS and OLS), in addition to YOU entering the Julian day, you MUST also
enter the desired EOT (it shows you the current EOT, you simply enter it in a yellow box), makes tailoring some work
sheets much easier, quite a few people wanted this. Better prompts for this change also. Appendices page 20 mag
decl/var updated and notes added on magnetic declination change over the years. A couple of minor comment
changes. DeltaCAD v-dial and h-dial macros have user selectable solar declinations, no longer fixed. Minor typos
in calendar macros (invisible to users). Main big spreadsheet updated to warn if entered Julian Day is not within a
day of the actual current day. The printed book is available again. A couple of minor improvements to misc items.
Main spreadsheet shows good sun declinations for the ambiguous months, p277 in the main book updated with that
table also. ( 23.44, 20 to 18, 10 to 12, 0 ) The printed book is currently out of stock, unavailable. Please select the
online download or the CD and print it at any local copy shop. The case study page revised along with some other
pages so they will be more friendly on Androids and iPhones. TurboViewer is a free cell phone app, and I have a
few DWG/DXF files you can see in 2D and 3D, created in TurboCAD. You do NOT need TurboCAD to view these,
just use the free TurboViewer app for the iPhone or Android. The USA airmail prices overseas have gone up by
$10, I have no control over that, sorry, see Paypal page. Master spreadsheet added a note re JD, and very nice
Italian, Babylonian, and day length tables to simplify adding them to any dial. DeltaCAD macro for full calendar
curves has an added recommendation note, changed default lat/lng, h-dial improved also. Another h-dial case
study added. One minor typo, better spirit level for Android cel phone. New case study added. DeltaCAB v dial
macro improved notes for v-dec dial. Spreadsheets for the Android cel phone as well as notes on some useful tools
for the diallist such as a compass and level. Small PDA A0.0 spreadsheet azimuth table fixed, ok in all other
spreadsheets. e-Droid-cell Light spreadsheets for the Android, free, and it works, check my ANDROID page for
details. Appendices updated with e-Droid-cell in the section on spreadsheets. Nicer Android V and H dial sheet and
added vDec also, and astro compass. The main Excel and Open Office master spread sheet updated with a typo,
no change to any formulae or data.
2011 Minor aesthetic change in the almanac DeltaCAD macro. Case study added for PHX 40 inch across
vertical south facing dial. A refinement to the solar declination table in the appendices (not a correction, just a
refinement). Added words SUN FAST or SLOW to main spreadsheet main screen, minor aesthetics change in the
spreadsheet. DeltaCAD v-dial macros: MAIN-v-dials.bas and MAIN-v-dials[f].bas had a typo in choice 7, the legend
said LAT when it should show LAT and COLAT. Misc cleanup of messages. Main spreadsheet Excel/OpenOffice
easier to use for Italian and Babylonian hour lines on the sunrise/set sheets, which also use 4 average astro EOT,
hyperlinks for Open Office fixed. Almanacs for Phoenix and Silver City updated, more may follow. New case study
added for a ceramic floor tile used as a v-dial with Italian lines and a noon analemma, see CASE STUDY page.
Less used worksheets removed from main spreadsheet, eg v-dial analemma removed but the more common h-dial
analemma retained, they were mostly for educational purposes anyway. Also the pie graph hour line depiction
removed since all dial plates have true hour line depictions. I have finished with spreadsheet revisions Oct 25,
2011 :) ANALEMMA.BAS notes added re southern hemisphere, and analemma page on this site updated re N and
S hemispheres. PayPal page improved for overseas (non USA) purchasers. Updated Casio fx-9860G notes.
DeltaCAD v-dial macro - removed superfluous messages. The illustrating-shadows spreadsheets have been
renamed to illustratingShadows, the book, appendices and spreadsheet notes updated to reflect this. Major
reorganization and more consistency and more notes in Excel and Open Office main spreadsheet. Phoenix AZ
dial plate file updated with inclined decliner, see CASE STUDIES page. Split chapter 18 to chapters 18 and 19 for
the inclined decliner, no substantive changes. IBM 1401 notes updated, 1401 and 360 sims recompiled with
cosmetic improvements, no fixes done but loop ctr max in 1401 upped, SPS program hdial.sps now uses MU to
improve switch setting usage. New print shop acquired, printed book and appendices prices stabilized. If you print
your own from the CD or download, select a small local copy shop, not Alphagraphics who cost about twice what
small shops cost. Dial lettering for several languages in appendices. Third party comment on the TI-Nspire
programmable calculator. Main spreadsheet XLS and ODS updated. The "buy something" PayPal page simplified.
The original books (Illustrating Shadows and Illustrating More Shadows) are no longer on the CD, and are no longer
updated. If you bought them, you can download the current and final book Illustrating Time's Shadow for free, just
email me using your email when you made the earlier purchase. The Python IDE does not work on Windows Vista
64 bit, be aware. An Arabic vertical non decliner (see CASE STUDIES page), with a table of Arabic lettering for 0
to 12. Notes on the HP calculator, the HP 35S, and how to program it for a simple horizontal dial (see SOFTWARE
section of the main web page), also, the EOT is shown but using an EQUation as opposed to a program. CASIO xls
and notes revised for a better ALMANAC spreadsheet (see SOFTWARE section of the main web page) DeltaCAD
has a new: MAIN-calendar-curvesFULL.bas macro, misc minor improvements in other areas also. Minor changes
to powerpoints re true north locating.
2010 The Casio fx-9860G Slim graphing calculator has a spreadsheet function, and this page has some
helpful hints as well as an EOT, V-dial, h-dial, and decl/sunrise/set spreadsheet. The free appendices have been
updated in formula section with a simple way of telling if radians or degrees are intended. The master spreadsheets
.XLS and .ODS changed in the sunset/rise worksheets now the 5th, 15th, and 25th as opposed to the 1st, 10th, and
20th. Chapter 18 inclined decliners has two pages with minor spreadsheet simplifications, no substantive change,
but Excel, Open Office, and DeltaCAD inclined decliners much simplified and much improved for easier, less
involved, less complicated, more intuitive use. Two typos fixed, one in Cubic Shadows, one in Simple Shadows.
Minor improvements to the master spreadsheet (.xls and .ods) in sunrise/set, helps with Italian lines; and better
options for sundial relocation (EOT and LONG). Windows 7 works with most stuff, but for VRML you must
download the latest Cortona VRML plugin see here. *** NOTE: quickShadows.* has been renamed
to cubicShadows.* Also, new "cubicShadows.bas" DeltaCAD macro for no real reason except uses true quadrant
sensing using local apparent time, does 24 hours, and has an equinox line. It handles V and H dials, and M as well,
calendar curves, almanac, EOT, DECL and simple v-dec all in one macro. Online book of Illustrating Time's
Shadow is back at $10. *** NOTE: quickShadows.* has been renamed to cubicShadows.* as of July 24, 2010.
Minor Excel spreadsheet improvements. Appendices and main book very minor enhancements. Fixed
"calendarDeclination.bas" for DeltaCAD v6, symptom "TYPE MISMATCH", worked on v7 [June 13]. See CASE
STUDIES or Supplemental PDFs for two pdf files on gnomonless dials. Added an analemmatic dial page with
simplified analemmatic dial spreadsheets in Excel and Open Office. Added a test spreadsheet for the analemma
in the sky for flat and curved photos. May 19 ~ fixed analemma in the sky in Excel and Open Office. Revised
course PowerPoint, new teaching aid for hdial~equatorial dial relationship, Simple Shadows minor improvements.
H-dial template (class handout) added to free appendices. DeltaCAD version 7 changed how the MIRROR function
worked, partial fix in my macros. FAQ updated re the difference between DL and SD, and appendices adds that as
a formula also. More hours shown on Delta CAD choice 4 (vdec) of the vertical dial macro. Macros tested ok on
DeltaCAD version 7. If you have a problem, please re download the latest (some from April 2009 don't work on
VISTA, long since fixed). Appendices updates with alternative proof of SD and DL for v-dec dials. LAZARUS
programming notes updated with other FLOAT to INT methods. Minor improvement to PowerPoint presentations.
illustrating-shadows.xls and .ods main screen menus improved and de-cluttered, and cells are protected except for
ones you should change (ATL-T, P, P to select the un-protect feature in Excel, or ATL-T, P, S to select the
un-protect feature in OpenOffice). New spreadsheet "quickShadows" in Excel, OpenOffice, and MS Works, is a mini
version of the main spreadsheet covering most dialing functions. Also even more paired down versions for
simpleShadows and microShadows in Excel, Open Office, and MS Works. The SUNDIAL COURSES page updated
for Spring 2010. Micro, Simple, and Cubic Shadows simplified, and ZIP files for them have their spreadsheets for
Excel, Open Office, and MS Works (Win 95 version !) Book 3 appendices (free) updated, minor stuff, added picture
in appendix 1, now 170 pages. NOTE: Jan 19, 2010: quickShadows is one sheet and handles H, V, V-DEC, Q, A,
P dials with altitude and azimuth as well, and with graphs in the .xls and .ods versions, but not for the Win 95 MS
Works. It is so good that it also a sheet in the full spreadsheet "illustrating-shadows". New document called "Dials
Types In Perspective", see free pamphlets page. A nice one page pdf of the Dialling scales, cut, fold, and scales
are on the front, EOT, Declination, Julian day on the back.
2009 Analemma notes updated. What not to buy notes updated. Trivial xls/ods updates. A diptych dial for both
Phoenix as well as Silver City,built as courseware for a sundial course at WNMU. Main spreadsheet (xls and ods)
improved for wall declinations. Micro, Simple, Cubic, and Cutting Shadows minor updates. First of several
PowerPoint courses, Basic Sundials, with vrml and etc. Excel and Open Office now have spreadsheets with EOT
plus a longitude difference. Added a new page 18 to analemma.pdf showing a way of looking at northern and
southern hemisphere difference regarding the analemma.DeltaCAD and Lazarus nomograms now have the
analemmatic dial. Added another nomogram for sunrisw/set that is neither type 1, 2, nor 3 but uses a quadrant of a
q-dial. More proofs added to appendices. TurboCAD solar lighting mesh and notes revised. Easier to use. Chapter
16 on vertical decliners revised, this re-sequences the topics, and redoes pictorials and text (no corrections, only
improvements), same thing for chapter 18 on inclined decliners (no corrections, only improvements. More
declination curves added to meridian dials in DeltaCAD macro. The slide rule and the sundial, and the nomogram
with an H, V, P, and M sundial, also sunrise/set, and SD,SH, and D for the vertical declienr, with notes on using SH
and DL for a surrogate h-dial for a vertical decliner. Notes for the nomogram and a DeltaCAD nomogram macro.
The 3 vertical line, the N or Z, and the circular nomogram are discussed for sundials with examples.
"nomogram.bas" was running out of memory on XP systems, it is fixed. Lazarus/Pascal program, source and .exe,
for nomograms is included. Appendix 2 and 3 re-sequenced for better clarity and some booklets revised. Formula
A8.21a in book 3 and separate appendices needs a definition added. OPEN OFFICE files were being converted by
some ISP providers from .ODS to .ZIP and thus failed. So I have put them in one zip file and that downloads ok.
ALLDIALS a Lazarus/Pascal program now has small graph as well as large graph. IBM 360 and 1401 sim minor
refinements. Excel, Open Office, DeltaCAD support and notes for 3d-bobbin shaped and 2d EOT gnomons, and
dialplate EOT analemmas for armillary dials, equatorial dials, polar and meridian, horzontal, vertical, and vertical
decliner dials. All dials have a full dial plate display with hour lines, analemmas, and calendar curves. Added
Italian and Calendar curve pages along with analemmas, specifically as dial furniture on the web. The main
spreadsheets (XLS and ODS) and DeltaCAD macros for v-dec dials all provide DL as a value for use as described in
the analemma notes. Book 3 appendix more in formula and v-dec sections, proof of DL added. IBM 360 sim has
ddd 0-4095, 16K memory, easy to reconfigure, hints added. Figure A9.4 in appendix improved with reminders, no
substantive change. DeltaCAD notes updated with how to print a very large dial plate, or portions of one. Illustrating
Shadows 4th edition now the same book as the 2nd edition of Illustrating More Shaodws, and they became
ILLUSTRATING TIME'S SHADOW. Added design templates for h and v dials and calendar or declination curves
extracted from the free appendices. Added Excel and Open Office sheet for X and Y distances given an angle,
useful for large dials. ADA sundial program and source of free ADA (GPS GNAT) system. MSWORKS h, v, vdec dial
sheets. Book 3 Illustrating Time's Shadows available in print ($40+s&h), as well as on the CD ( $20 or $25), and
online also ($10). Prior purchasers get book 3 free online, use your userid/password, or email me if it has expired.
Better DeltaCAD page. Added a fully functional Algol 68 open source program for h-dials. All books online
downloadable each as a single file here. SEARCH facility added to web site. IBM 1401 sim trivial update. Excel
web page update re why nothing appears in the main spreadsheet menu until you enter a Julian day, and useful
spreadsheet notes added also. DeltaCAD macros with and without parm file now work on Vista win64 as well as XP.
VRML/X3D models page completely rewritten, covers old XP through Vista win64 systems, three free viewing
packages, when to use them, and how to navigate the worlds, and fix perceived problems, these notes are very
valuable. Free booklets Micro/Simple/Cubic/Declining/Cutting Shadows updated. IBM 1401 MA (#) and R/W/P
combos added. Lazarus notes updated for Windows Vista and win64. Palm PDA hotsynch with Vista notes. Revised
software page. A GUI open source IBM 1401 simulator and dial programs is working, see the IBM 1401 page. IBM
360 simulator improved. Euler notes updated with command to type after a load or, alternatively, how to get those
comments. And Euler animation improved. DeltaCAD, Excel, Open Office, BASIC, FORTRAN, C++, Pascal, and
Lazarus and IBM 360 and 1401 now tested on XP as well as Vista win64. Clarifying that Microsoft Office and Open
Office are NOT compatible when using the advanced methods my sheets use. VRML plugin Cortona works on
Vista win64 but it may crash the first time or two. Read notes on this page. A Lazarus/Pascal based IBM 360
simulator, GUI, assembler, linkediter, and executor running with a sample h-dial program, macros and SVCs. Notes
also. Ceiling dial completed, see case studies. Lazarus ALLDIALS EXE file added in the ZIP. Second IBM 1401
sim with autocoder added plus h-dial and SIN COS TAN COT ATAN MULTP code fully working. 1401 SPS hdial v4
updated. VB h-dial executable with graphics added. LAZARUS h and v-dial and v-dec programs with text and
graphics (for v-dec dial), LAZARUS is an open source close equivalent to DELPHI. Added an IBM 360 simulator
which assembles an h-dial BAL program and runs it.
2008 Noon transit in main spreadsheet. Ceiling dial in DeltaCAD. Book 3 appendix now here. NEW
TurboCAD Pro v15.2 supports parametric scripts PSE PPM, here is an h-dial using it and notes (easier than the
VBS system, and resulting dial plates redraw themselves if you SELECT and change their parameters). COBOL
progs: one using trig series, one using functions. Open Office (free) versions of the xls main spreadsheets in ODS
format added. Short summary of geometry and trigonometry as used with sundials. An IBM 1401 SPS program plus
free simulator, and one for the IBM 7094 and its simulator. IBM 1401 code for SIN, COS, TAN, COT, ATAN and
MULTIPLY. TurboCAD scripts and notes updated. More work on COBOL and notes on using KOBOL(r). Derivation
of v-dec (vertical decliner) hour line angles. Book 1 and 2 updated for online users. Notes and main spreadsheet
handling ceiling or reflecting dials, xls for appendices added, PDA xls and .PRC (stand alone programs) updated
also.TurboCAD minor additions. Calculating the Time of an old photo. Cappucin DeltaCAD. A 24 hour h-dial in
DeltaCAD, Roman/Arabic in some. DeltaCAD programs consolidated. DeltaCAD dial plate options, and 7 month
curves. FAQ noon lines. Minor improvements. Notes on DeltaCAD programming internals, methods, and
techniques. Programming, CAD, and other systems. C for the Palm Pilot (PDA) text and graphics for v and h-dials as
standalone apps. An almanac program. Octave h-dial, v-dial, and v-dec. Notes on the old housewife's trick.
DeltaCAD, TurboCAD, FAQ. LISP program for ProgeCAD, a free AutoCAD like system. SCILAB and PYTHON and
Euler graphic & animated dials. Excel for PDAs, EOT, calendar curves, analemma 8, inclined decliner, astrolabe,
graphs on the PDA.
2007 DeltaCAD stuff. BASIC programs. Pascal h-dial and v-dec, C, Fortran, and VB h-dials. VB and JAVA
graphics. JAVA, Visual Basic, C, Pascal, Fortran, etc notes. Main spreadsheet and eot sheet cross hyperlinked.
Astro compass , wall declination supplements rewritten, new spreadsheet makes work v easy. Solstice/Equinox etc
curves for any SH in DeltaCAD. DeltaCAD pole facing v-dec (case study) & VRML model (needs Cortona plugin).
Great-decliner DeltaCAD. N and S hemispheres for V, V-dec, and H dials. Improved DeltaCAD calendar. V-dec
Delta/Turbo CAD updated Source for all three VB systems. More DeltaCAD. COBOL h-dial program. DeltaCAD h &
v dial improvements. Improvements in computer programs. DeltaCAD bifilar dialUpdate main spreadsheet, also
E/W declining arrow dials on case study page.
2006 vrml animations, lighting in CAD, planispheric astrolabe, polarizing dial. Dipleidoscope. 3d
stereograms. What people are interested in. Sundials not to buy. Case studies. Spreadsheet has calendar lines,
Booklet on calendar lines. Spreadsheet has analemma, DeltaCAD h, v and m-dial programs, programming methods
for trig to code. Sundial Day proclamation. Clay dial plates. DeltaCAD macros with animation, shepherd & azimuth
dials. DeltaCAD for dual gnomon shepherd and tables. Illustrating More Shadows. DeltaCAD astrolabe improved,
and formulae notes.
2005 astro EOT, EOT 1904, 2104, 2004-2007, Formulae collections, TCW files, Gnomonless dial. Lunar
dials, Ecliptic dials, more vrml, nocturnal star dial
