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
    Equations for Mercator projections?
    From: Geoff Kuenning
    Date: 2003 Apr 14, 13:40 -0700

    I have some students who need to be able to convert lat/long into x/y
    coordinates on a Mercator projection.  They know the lat/long of the
    upper-left corner and the scale of the map.  They haven't had any
    success finding equations on the Web.  Does anybody have any pointers?
    --
        Geoff Kuenning   geoff@cs.hmc.edu   http://www.cs.hmc.edu/~geoff/
    
    Perl is awk with skin cancer.
                    -- Henry Spencer
    
    
    

       
    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