-------- Original Message --------
Subject:        Re: Software for determining old map projections
Date:   Thu, 07 Nov 2013 07:59:51 -0500
From:   Joel Kovarsky <[log in to unmask]>
To:     Maps, Air Photo, GIS Forum - Map Librarianship
<[log in to unmask]>



David,

This is not a direct answer, but if you do not get one I would consider
contacting the people involved with MapAnalyst
(http://mapanalyst.org/index.html ; particularly Bernhard Jenny) and
also Joaquim Alves Gaspar (http://lisboa.academia.edu/JoaquimGaspar ;
can be done via MapHist Forum). You may have already done this.

      Joel Kovarsky

On 11/7/13, 7:42 AM, Angie Cope, American Geographical Society Library,
UW Milwaukee wrote:
>
> -------- Original Message --------
> Subject:      Software for determining old map projections
> Date:         Wed, 6 Nov 2013 16:28:49 -0500 (EST)
> From:         David Allen <[log in to unmask]>
> To:   [log in to unmask]
>
>
>
>
>
> I am studying some early nineteenth century maps by Aaron Arrowsmith
> that show projection grids (graticules), but do not state what
> projection was used.  I was wondering if someone has developed
> software to ascertain map projections based on the lines of the grid.
> I would think that it would be fairly easy to develop something like
> this, but have not been able to turn up anything via Google.  Any leads?
>
> David Allen
> (Stony Brook University, Emeritus)


--
Joel Kovarsky
The Prime Meridian
1839 Clay Drive
Crozet, VA 22932 USA
http://www.theprimemeridian.com