----- Forwarded Message -----
From: "Francis Herbert" <[log in to unmask]>
To: "Air Photo & GIS Forum' 'Maps" <[log in to unmask]>
Sent: Sunday, December 20, 2009 8:00:01 AM GMT -06:00 US/Canada Central
Subject: RE: need help with scale in pas geometriques
Silvana, Evan (et al.),
Is specific help offered on http://www.maphistory.info/topics.html#scale
?
Or, if none of the links therein supply a satisfactory answer, who is
going to contact - ideally copying to Tony Campbell (maintainer of this
'Maphistory' gateway site) - the potentially more usefully individual
informative compiler(s) and add another scale measurement concordance
unit to the lists(s)?
Unfortunately I do not have a copy of Jean Boutier's illustrated
carto-bibliography 'Les plans de Paris des origines (1493) a la fin du
XVIIIe siecle' (Paris : Bib. Nat. de France, 2002 ; ISBN 2-7177-2230-0).
But (an unashamed self-'plug' here) my review of this valuable reference
work is viewable online:
http://www.bimcc.org/articles/plans-de-paris.htm
Yours (taking a careful 'pas geometrique' backwards),
Francis Herbert
[log in to unmask]
-----Original Message-----
From: Maps, Air Photo & GIS Forum [mailto:[log in to unmask]] On
Behalf Of Angie Cope
Sent: 18 December 2009 19:53
To: [log in to unmask]
Subject: Re: need help with scale in pas geometriques
-------- Original Message --------
Subject: RE: need help with scale in pas geometriques
Date: Fri, 18 Dec 2009 10:53:47 -0800
From: Evan Thornberry <[log in to unmask]>
To: Maps, Air Photo & GIS Forum <[log in to unmask]>
References: <[log in to unmask]>
I'm no arithmetician, but it sounds right to me. Here's the long way:
180pg (1in) = 959.4 ft = 0.181705 miles = 11,512.8 inches
1:11,512.8
Evan Thornberry
Manager, Huxley College Map Library
Western Washington University
516 High Street
Bellingham, WA. 98225-9085
________________________________________
From: Maps, Air Photo & GIS Forum [[log in to unmask]] On Behalf Of
Angie Cope [[log in to unmask]]
Sent: Friday, December 18, 2009 10:04 AM
To: [log in to unmask]
Subject: need help with scale in pas geometriques
-------- Original Message --------
Subject: need help with scale in pas geometriques
Date: Fri, 18 Dec 2009 10:09:43 -0700
From: [log in to unmask]
To: MAPS-L <[log in to unmask]>
Hi there,
I'm a rare book cataloger, who recently started working with
cartographic materials. I typically work with atlases, so scale is
hardly ever an issue. But, when it is, I often have to convert foreign
and/or archaic units, a bit challenging to say the least ...
I'm pretty much a novice, so please bear with me. I am trying to supply
the RF for bar scale given in pas geometriques, for maps from La
Caille's Description de la ville et des fauxbourgs de Paris, (1967
facsim of 1714 ed). The maps that show scale have 2 bar scales that vary
between 2 1/8-2 1/4in. in length. Top one reads "quatre cents pas
geometrique", the one under it reads "mil pas communs". According to my
research 1 pg = 5.33 ft /63.96 in and 1 pc = 2.66 ft / 31.98 in. An in
on the pg bar scale = approx 180 pg So if I multiply 180 x 63.96, I get
1:11,513. Am I totally off here?
Any help would be *really* appreciated.
Silvana
|
