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
    Name or NavList Code:
    Email:
       
    Reply
    Re: Circle charts
    From: Andrew Nikitin
    Date: 2009 Jan 28, 11:34 -0800

    On Jan 28, 2:46 am, Nicolàs de Hilster  wrote:
    > The company I used to work for in those days had dedicated in-house
    > software to create these plots and plotted them using an A1 or A0 pen
    > plotter, but I do recall that at some jobs they were even made by hand,
    > something I never did.
    
    It occured to me that there is intermediate variant between printing circle of
    position on a chart and constructing them manually every time it is needed.
    What can be done instead, is for certain pair of bases every point of its
    middle perpendicular can be graduated with the angles (in degrees) at which
    this pair of bases is visible from any point of the circle with the center on
    this point and radius equal to the distance between this point and one of the
    bases.
    
    Attached PDF shows what I mean by that. Hopefully.
    
    Andrew Nikitin.
    
    --~--~---------~--~----~------------~-------~--~----~
    Navigation List archive: www.fer3.com/arc
    To post, email NavList@fer3.com
    To , email NavList-@fer3.com
    -~----------~----~----~----~------~----~------~--~---
    
    

    File:

      
       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID 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