4 messages on various aspects of the DOQ problem.-----------Johnnie
--------------------------------------------
[log in to unmask] (J Fieber)
Re: DOQ Problem
Wed, 1 Dec 93 16:30:19 EST
Gwen Curtis <[log in to unmask]> writes:
> GPO... I just discovered that a sample DOQ was distributed to depository
> libraries called the "Olmsted County" project, Minnesota under Sudoc number
> I 19.120:OL 5/CD. You might want to take a look at it before making your
> selection. I've not had any luck getting mine to display yet, but we're
> still working on it. I'd be interested in hearing if anyone has been able
> to use theirs.
The software that comes on the disk is pretty clunky to say the
least. The best results I got with the packaged software was on
a 486DX50 machine with a Diamond Stealth video card using the
VESA display mode. Even that was a little buggy. I got somewhat
better results on a sparcstation equipped with 64 meg of ram and
240 meg of swap and a 19" monitor.
Most image display software tries to read the entire image into
RAM before displaying it. That approach falls apart with the
huge ( > 50 megabyte ) images on the DOQ disks. Short of an
elaborate GIS package, I have not found a convenient solution for
viewing them yet. (I have not looked too hard though...)
If anyone has a solution, I'd like to know about it. MS-DOS and
Mac solutions are preferred since those platforms are easier to
come by but Unix/X11 solutions are certainly welcome.
-john
== John Fieber ================================== Young Science Library ==
== [log in to unmask] ======= Smith College, Northampton MA 01063 ==
-----------------------------------
Wed, 1 Dec 93 22:41+0000
RE: DOQ Problem
[log in to unmask]
This was my request on ACDGIS-L about the DOQ mentioned... I got a test disk
from Reston but have also some problems to read it properly on my PCI-266
with V7 Mercury graphic board...
Frank H.
--
(request message included)
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P1-Message-Id: DE*D400*TU-DRESDEN;dfnserv-tud1003931201234105-K9R
Date: Wed, 1 Dec 93 22:41+0000
X400-Trace: DE*D400*TU-DRESDEN; arrival Wed, 1 Dec 93 22:41+0000 action
Relayed
X400-Trace: de*d400*GmD; arrival Wed, 1 Dec 93 22:43+0000 action Relayed
X400-Trace: de*d400*GMD; arrival Wed, 1 Dec 93 23:47+0100 action Relayed
Reply-To: [log in to unmask], imagrs-l@csearn,
[log in to unmask]
Subject: DOQ-CD vom USGS
Cc: imagrs-l@csearn
To: Geographische Informationssysteme <ACDGIS-L@AWIIMC12>
From: [log in to unmask]
Message-Id: <931123233857*[log in to unmask]>
Ich teste gerade die CD-ROM mit digitalen Orthophotos mit JPEG Kompressions-
techniken vom USGS ("Olmsted County" Projekt)... es gibt da einige Nebeneffekte
beim Ausf|hren der Kompressionsdemo... z.B. stuerzt nach dem Verlassen des
Programms anschliessend die Windows-Oberflaeche zusammen und der Bildspeicher
wird nicht mehr reaktiviert.... Das System laesst sich nicht mehr "warm"
starten und es gibt nur noch die Radikalkur mit dem Hauptschalter.
--
Hat jemand zufaellig diese Test-CD schon etwas naeher diagnostiziert ???
Oder ist das ggf. ein DOS/W31 - Problem....?
MfG, F.Hoffmann
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[log in to unmask]
Thu, 2 Dec 93 04:09:00 BST
DOQ Comment
Reply: Item #9398569 from [log in to unmask]@INet#on 93/11/30 at 11:40
Might it not make more sense for selective libraries to have the option of
selecting CD-ROMS within a specific radius? The one-state provision might be a
problem for states on or near a boundary (Dartmouth, St Louis, and Kansas City
jump immediately to mind)
---------------------------------------------------
[log in to unmask]
Re: DOQ Problem
Thu, 02 Dec 93 07:51:57 -0800
UCSB has got the doq to display, but it was quite a
production. First Larry Carver used IMDISP (which is
on the cd) but wasn't real pleased with what resulted.
Then he tried it using a software called xv (very
inexpensive - if I remember correctly it's $25 -
have already promised Larry Cruse that I'll get
the full info on that), and it took a workstation nearly
20 MINUTES to decompress and display the image (but
the end result was good). Then he tried it on
a DEC Alpha (another mini) and took about half as
much time. I have a 2-page guide on using IMDISP
since the manual carefully explains each command
but doesn't tell you in what order to use those
commands ... if you need, let me know.
Mary Larsgaard ([log in to unmask])
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