Carl, good work as always.
Chatting with people about DeltaCAD as well as the
other languages, common questions do get asked. I have
added a few pages of notes on how DeltaCAD programs
work, including a very short overview on object
oriented versus conversational and transaction based
programming, and also techniques. It is on my DeltaCAD
page.
These notes are only an extract from a much more
complete chapter in Illustrating More Shadows, which
also covers selected dials written in a number of
languages, so language systems may be compared.
I also have dials in Octave, Scilab, and Euler, all of
which are free systems; legacy language stuff for
diallists in FORTRAN as well as Pascal; and the newer
language systems such as JAVA and Python.
Anyhow, I hope the notes I added today on my DeltaCAD
page:-
www.illustratingshadows.com/stats-DeltaCAD
will be helpful in explaining DeltaCAD's user
interface and some techniques to consider when writing
DeltaCAD macros.
Simon
www.illustratingshadows.com
--- Carl & Barbara Sabanski <[EMAIL PROTECTED]>
wrote:
> Sunny Day!
>
> As many of you are aware, Valentin Hristov wrote an
> excellent DeltaCad
> sundial macro for a bifilar sundial that can be
> designed in any arbitrary
> position. This macro can actually be used to design
> 13 different sundials.
>
> I have never attempted to write a macro and I
> thought a good way to start
> learning would be to modify an existing macro. So,
> with Valentin's help, I
> have made a couple of modifications to his bifilar
> sundial macro. There are
> two changes I have incorporated as follows:
>
> In the original macro there are three selections for
> the hour line time
> intervals. In the modified version there are seven.
> In the original macro there is one set of date lines
> that are integrated
> with the period selection. In the modified version
> the date line selection
> has been separated from the period selection. There
> are now six selections
> for the date lines as well as the original three
> period selections.
>
> If you would like to see what the new version has to
> offer scroll way down
> to the bottom of this page:
>
>
www.mysundial.ca/tsp/deltacad_sundial_macros_vh_bifilar2.html
>
> If you would like to get this macro go to this page:
>
> www.mysundial.ca/tsp/deltacad_sundial_macros_vh.html
>
> I believe these changes have added additional
> flexibility to the original
> macro. It was a challenge to even modify a macro
> and get it working. It is
> a great learning experience if you have never
> programmed before. Give it a
> try. If you encounter any problems with the macro
> please let me know.
>
> And while you are visiting go to the spider sundial
> page to see Valentin's
> latest macro.
>
> Happy Dialling!
>
> Carl Sabanski
> www.mysundial.ca
>
>
> ---------------------------------------------------
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>
>
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