--- Begin Forwarded Message ---
Date: Tue, 29 Jun 1999 09:54:56 +0100
From: Francis Herbert <[log in to unmask]>
Subject: RE: measuring the accuracy of early maps <fwd>
Sender: Francis Herbert <[log in to unmask]>



Dear Nancy (and patron of NYPL),

Other than searching the third -  "(c) Subjects" - of the three indexes to
my annual 'Imago Mundi Bibliography' I can offer two items in the issue at
press (vol. 51 for 1999):-

Graphische Darstellungen der Untersuchungsergebnisse alter Karten und die
Entwicklung der Verzerrungsgitter = Graphic representations of the analysis
results of old maps and the development of distortion grids / Gustav
Forstner & Markus Oehrli. - IN: Cartographica Helvetica: Fachzeitschrift
fuer Kartengeschichte (Murten),  Januar 1998,  17,  35-43: ill.(some col.),
fig. - 11 notes & refs. - Summ. in D, E, & F. - Includes 'Anhang: graphische
Fehlerdarstellungen alter Karten' (bibliogr. arranged alphabetically by
method [including vector]): p.40-43. - ISSN 1015-8480

Expanding upon this overview of different analysis methods there is a
'follow-up' article concentrating on two particular methods:-

Zwei Konstruktionsmethoden von Verzerrungsgittern zur Untersuchung alter
Karten = Two methods for constructing distortion grids for the analysis of
old maps / Gustav Forstner. - IN: Cartographica Helvetica [...],  Juli 1998,
18,  33-40: ill.,map,fig. - 17 notes & refs. - Summ. in D, E, & F [...]

Sincerely

Francis Herbert (Compiler of 'Imago Mundi Bibliography'; Curator of Maps,
RGS-IBG)
[log in to unmask]

> -----Original Message-----
> From: Johnnie Sutherland [SMTP:[log in to unmask]]
> Sent: 28 June 1999 22:13
> To:   [log in to unmask]
> Subject:      measuring the accuracy of early maps <fwd>
>
> --- Begin Forwarded Message ---
> Date: Mon, 28 Jun 1999 16:40:23 -0400
> From: nkandoian <[log in to unmask]>
> Subject: measuring the accuracy of early maps
> Sender: nkandoian <[log in to unmask]>
>
>
>
>      Does anyone know offhand about recent published studies or the names
>      of contact people for information about measuring the accuracy of
>      early maps using computers?  I am making this query for someone who
>      would like to capture an early map in vectors and "stretch" it to fit
>      known features on a modern topo map, and then make some analysis or
>      measurement of accuracy.  He's interested in the experience of others
>      who have done this.  I've found Ravenhill and Gilg's 1974 article in
>      Cartographic Journal, and thought of tracing later citations of their
>      work through Social Sciences Citation Index, but if anyone would like
>      to suggest something else, I'd appreciate it.
>
>      Nancy Kandoian
>      Map Division, New York Public Library
>      [log in to unmask]
> --- End Forwarded Message ---
--- End Forwarded Message ---