Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: MHR1 reproduction
    From: Wolfgang Hasper
    Date: 2010 Jul 16, 22:30 +0200

    Dear Dave and Robin,
    thank you very much for your respective messages.
    I had a look at the FORTRAN code that Dave kindly
    shared with the list- unfortunately my FORTRAN is not
    at all fluent and my understanding of the whole thing,
    well, only partly...(I am rather a programming dummy)
    
    Both your programs produce wonderful scales! Especially
    the reverse numbering in Robin's POSTSCRIPT is
    brilliant.
    
    When making the reproduction I noticed that the tube
    diametres are within their specifications but vary
    slightly.
    
    What I am dreaming of is a program to produce an
    individual set of scales for two individually
    specified diametres. (logarithmic divisions matching
    by the arcs on both diametres)
    Maybe even pitch could be made a variable to perfectly
    match the tube lengths.
    The final, though least important, point on my wishlist
    would be a way to individually set the font... (to
    come closest to the original, most likely Futura...)
    I suppose these are lots of ideas that are hard to
    implement.
    
    I have successfully compiled and run the FORTRAN code.
    (Which is designed to produce "flat bygrave" scales)
    And I think with some hints I could edit tube
    diametres/circumferences/pitch/font setting directly
    in any POSTCRIPT or FORTRAN code.
    
    I would be grateful for any help and ideas on how to
    best produce the helical scales needed to finish the
    reproduction!
    
    best regards
    Wolfgang
    
    
    
    
    
    Am Dienstag, 13. Juli 2010 23:01 schrieb Dave Walden:
    > Or this:
    >
    >
    >
    > [NavList 9186] Re: The Bygrave
    > From: waldendand---COM
    > Date: 22 Jul 2009 19:15
    >
    > Here's a revised version of a Bygrave scale.  I use
    > a FORTRAN program to write out postscript text.
    > --~--~---------~--~----~------------~-------~--~----
    >~ NavList message boards: www.fer3.com/arc
    > Or post by email to: NavList---com
    > To unsubscribe, email NavList-unsubscribe---com
    > -~----------~----~----~----~------~----~------~--~--
    >-
    >
    >
    > Attached File: 109186.dwantik1.pdf
    > ----------------------------------------------------
    >------------ NavList message boards and member
    > settings: www.fer3.com/NavList Members may
    > optionally receive posts by email. To cancel email
    > delivery, send a message to NoMail[at]fer3.com
    > ----------------------------------------------------
    >------------
    
    
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site