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While I was waiting for my next batch images from Worsley's navigational 
logbook, I decided to tweak the 2102E.

I have decoupled the Red and Blue templates.  They now move independently, 
just as they would in a 2102-D.

I have successfully added in Venus, Mars, Jupiter, Saturn and the Moon.  These 
will follow//not follow the red template if you check// un-check the 
associated box.  Unfortunately, this required the use of Visual Basic.  My 
apologies to anyone who wanted open source and does not know VB.  Simply put, 
Excel didn't offer the native feature I wanted, which was to update a value 
as long as a checkbox was checked, and hold the existing value when the 
checkbox wasn't checked.  Thats an easy day in VB.

There remains a small dilemma.  When switching from the northern to southern 
hemisperes, the alignment of the stars, the solar disk and the planets is 
lost.  I haven't figured out where this is yet, but I will!  Of course, in 
the 2102-D, you have to start plotting all over again, so this kind of works 
the same (broken) way.

I still don't have the tick marks.  In a scatter chart, you have to identify 
the start and end point of each line.  There are 360 lines if you want 1 per 
degree.  There are another bunch of lines if you want Time Marks.  I will 
work up the energy for this someday.

Best Regards
Brad

 

 


File: 
Azimuthal-Equidistant-Rev-12.xls



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