-------- Original Message --------
Subject: Re: Difference between a Bird's-eye view and a Worm's-eye view
Date: Mon, 15 Aug 2011 10:48:42 +0100 (BST)
From: A CARLUCCI <[log in to unmask]>
To: Air Photo GIS Forum - Map LibrarianshipMaps <[log in to unmask]>
Hello all
I only recently had a good look at the new LC genre form headings and I
think there is some input to the question from that source--although
perhaps not the input we would hope for.
"Bird's-eye view" is not an authorised genre heading, and it refers the
user to "Aerial views", i.e.,
155 __*|a *Aerial views
455 __*|a *Bird’s-eye views
455 __*|a *Overhead views
455 __*|a *Views, Aerial
455 __*|a *Views, Bird’s-eye
555 __*|w *g*|a *Cartographic materials
670 __*|a *Form/genre for cartographic materials [draft of LC working
group], 1996:*|b *Views--Aerial (A perspective representation of cities
or landscapes portrayed as if viewed from above at an oblique angle; not
generally drawn to scale but shows street patterns, individual
buildings, and major landscape features (e.g., bird’s-eye view,
panorama, panoramic drawing, worm’s-eye view))
This goes contrary to what Ken says when he differentiates between
bird's-eye views and aerial views, and frankly, I'm with Ken. The LC
authority record assumes all aerial views are done from an oblique
angle, and that users will understand that, and that assumption is too
broad. I think bird's-eye views are sufficiently different and important
that they should have their own authorised genre heading, not only
because of the above, but because if worms can have their own views,
then so should birds! Really, can anyone even remember seeing a
worm's-eye view? Can we really say it is common enough that it should
warrent its own heading when bird's-eye view doesn't?
I don't expect LC to change this because I don't agree with it, but I
think we have some discussions ahead to be sure these new headings are
applied usefully.
Regards
April
April Carlucci
The Itinerant Map Catalog(u)er
--- On *Fri, 12/8/11, Angie Cope, American Geographical Society Library,
UW Milwaukee /<[log in to unmask]>/* wrote:
From: Angie Cope, American Geographical Society Library, UW
Milwaukee <[log in to unmask]>
Subject: Re: Difference between a Bird's-eye View and a Pictorial
Relief Map
To: [log in to unmask]
Date: Friday, 12 August, 2011, 19:35
-------- Original Message --------
Subject: RE: Difference between a Bird's-eye View and a Pictorial
Relief Map
Date: Fri, 12 Aug 2011 14:29:34 -0400
From: Grabach, Kenneth A. Mr. <[log in to unmask]
<[log in to unmask]" target="_blank">http:[log in to unmask]>>
To: Maps, Air Photo, GIS Forum - Map Librarianship
<[log in to unmask]
<[log in to unmask]" target="_blank">http:[log in to unmask]>>
I would like to add to what has already been said about these.
As regards pictorial relief maps, these can, and usually do, have a
specific horizontal scale. Some city maps will show selected buildings
pictorially. Some maps of mountain areas show mountains and other
features pictorially. It is usually possible to use a verbal or bar
graph scale to determine lengths and distances. Scale does not
relate on
these maps to heights, of buildings or the other pictorial imagery. In
fact, they are often portrayed as bigger than the scale would suggest.
Bird's-eye views, on the other hand, are just as the name suggests.
They
are *perspective* views, as if seen from above, but not as an aerial
view. It is a view at an oblique angle, from above. If you were in an
airplane, and looking down and out at an angle as from a window, you
would see this kind of view of the landscape. Things closer to you
would
be larger, and things at more distance from you would seem smaller.
They
are called bird's-eye views because they were created before the
airplane existed. Sometimes balloons were used, but as Joel said, they
are usually works of imagination, though done on site to create a view
of, say, New York, or Saint Louis, or another city.
They are different from "panoramic views", which portray a scene as
viewed from the ground, looking straight ahead, a horizontal view.
Skyline views are examples of these, and river front scenes. They, too,
are perspective views, not drawn to scale, with closer objects being
portrayed larger than more distant ones. The difference is in
vantage point.
And they are different from aerial views, which are taken from a
vertical point of view, as looking straight down from a camera mounted
on an aircraft. They might or might not be done to scale, depending on
what if any work has been done to correct the image. This is one way in
which “remote-sensing images” (not corrected for scale) differ from
“remote-sensing maps” (which are corrected for scale).
Ken Grabach <[log in to unmask]
<[log in to unmask]" target="_blank">http:[log in to unmask]>>
Maps Librarian Phone: 513-529-1726
Miami University Libraries
Oxford, Ohio 45056 USA
-----Original Message-----
From: Maps, Air Photo, GIS Forum - Map Librarianship
[mailto:[log in to unmask]
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On Behalf Of Angie Cope, American
Geographical Society Library, UW Milwaukee
Sent: Friday, August 12, 2011 9:30 AM
To: [log in to unmask]
<[log in to unmask]" target="_blank">http:[log in to unmask]>
Subject: Difference between a Bird's-eye View and a Pictorial
Relief Map
------- Original Message --------
Subject: Difference between a Bird's-eye View and a Pictorial
Relief Map
Date: Thu, 11 Aug 2011 14:32:09 -0800
From: Welton, Rose A (EED) <[log in to unmask]
<[log in to unmask]" target="_blank">http:[log in to unmask]>>
To: [log in to unmask]
<[log in to unmask]" target="_blank">http:[log in to unmask]>
Hello:
Could someone explain the difference to me between a Bird’s-Eye
View map
and a Pictorial Relief Map? I have read the definitions in the
Cartographic Materials manual and I am still not sure of what I have.
Are they both drawings?
I have a colorful drawing of a map of our ski area, showing all the ski
runs and the ski area boundaries, as seen from above. This is no scale
given. There are a few pictorial symbols for map legend, but no text
except the names of the ski runs.
Thank you very much for your help,
Rose Welton
cid:image001.jpg@01CA5878.398D93E0
Rose Welton, Catalog Librarian
Alaska State Library
P.O. Box 110571, Juneau, AK 99811-0571
907-465-2940 (tel.); 907-465-2990 (fax)
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