--- Begin Forwarded Message ---
Date: Thu, 6 Apr 2000 16:20:53 -0400
From: Barbara Levergood <[log in to unmask]>
Subject: Plotter specifications for Census2000 maps
Sender: Barbara Levergood <[log in to unmask]>
Barbara Aldrich of the Census Bureau's Marketing Services Office
asked me to circulate "Large-format map products for Census
2000: guide to map plotting devices" among maps and documents
librarians. It is in a PDF file as an attachment to this message. I
have done my best to copy the PDF as text and provide it below for
those of you who can't read PDF from your email software.
Please contact Barbara Aldrich
[log in to unmask] directly with any questions.
Barbara Levergood
======= from Barbara Aldrich:
Large-Format Map Products for Census 2000
Guide To Map Plotting Devices
Many of the map products the Census Bureau will
produce to support Census
2000 will be available to the public in various
electronic file formats. Each map
type will be available in one or more file
formats depending on the map
requirements and specifications. Some predefined
map types, such as the
County Block Map and the Census Tract Outline
Map, will be available in both
Hewlett-Packard Graphics Language (HP-GL) and
Adobe's Portable Document
Format (PDF). Other specialized maps, such as
thematic wall maps, will be
available in PDF and/or PostScript format.
Maps in HP-GL format are provided to facilitate
high volume map plotting. Maps
provided in PDF format are intended for viewing,
navigating, and printing using
the current version of Adobe's free software
product, Acrobat Reader. On many
output devices, maps in PostScript format
provide the highest image quality at
the expense of file size and processing
efficiency.
The Census Bureau will produce copies of the
P.L. 94-171 and other Census
2000 map products in HP-GL format using the
device specifications below. If
maps are plotted by users on different output
devices, the results may vary.
Printing devices often interpret graphic
elements and colors differently, therefore,
variations in the output are possible.
Variations also are possible when plotting
maps on different printers produced by the same
manufacturer.
CENSUS MAPS IN HP-GL FORMAT DESIGNED FOR OUTPUT
ON THE
FOLLOWING DEVICE:
Manufacturer: Hewlett-Packard
Model: HP DesignJet 1050C
Media Size: 36-inch wide roll
Resolution: 600 dpi, color and black and white
Memory: 80 Megabytes RAM, 2 Gigabyte hard disk
Languages: HP-GL/2
Interface: HP JetDirect 600N 10/100Base-TX
internal print server
Control Panel Settings:
Print Quality: Draft
HP-GL/2 Settings: Palette=Software
Merge=Off
Language: Automatic
The Census Bureau does not endorse the use of a
particular manufacturer's product for
plotting maps. Therefore, below are general
hardware specifications that will guide
users in selecting an output device capable of
plotting Census Bureau map products.
03/08/00 DRAFT
Recommended Configuration
Media Size: 36-inch wide roll
Resolution: 600 dpi, color and black and white
Memory: 80 Megabytes RAM, 2 Gigabyte hard disk
Language: HP-GL/2
Minimum Configuration
Media Size: 36-inch wide roll
Resolution: 300 dpi, color and black and white
Memory: 64 Megabytes RAM
Language: HP-GL/2
USEFUL DEVICE OPTIONS
Since all map products to support Census 2000
will be available in PDF format,
as well as selected high quality maps in
PostScript format, a PostScript Level 2
or 3 interpreter may be advantageous. To achieve
the highest output quality,
PDF and PostScript files should be plotted on
output devices that have a
PostScript interpreter.
An internal hard disk also is useful to allow
more efficient queue management
and to maximize system throughput. On some
devices, the hard disk is only
utilized to facilitate the processing of PDF and
PostScript files.
Software and related issues
It is recommended that the HP-GL files are
plotted directly from Unix, MS-DOS or
software applications distributed by the Census
Bureau. Plotting the files from
within other applications is not recommended
since the results are not
predictable. When printing a map image, some
applications may convert the
map image to a different electronic format that
is recognized by the output
device. In these cases, the appearance and
quality of the map images may vary.
<nofill>
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Barbara Levergood
Electronic Documents Librarian
Documents Section, Reference Department, CB #3912
Davis Library
University of North Carolina, Chapel Hill
Chapel Hill, NC 27514-8890
919-962-1151, FAX: 919-962-5537
[log in to unmask]
Federal Depository Library #0447
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Date: 6 Apr 2000, 16:03
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