HDTenEightyP/NetNews huggingface dataset:
From: m20163@mwunix.mitre.org (Nahum Gershon)
Subject: How to Lie and Confuse with Visualization
Summary: How to do things right from looking into how to do things wrong.
Keywords: Learn how to do thigs right from lrearning how to do things wrong.
Organization: The MITRE Corporation
Date: Thu, 8 Oct 1992 16:25:36 GMT




"How to Lie and Confuse with Visualization"


	People have lied with statistics and maps for years.  Now it's 
time to look into lying and confusing in the field of visualization.  
Your big chance to do just that, in the open, will be in this special 
session of Visualization '92 Conference on Tuesday, October 20, 1992 
at 7:00 pm.  You are invited to bring with you visualization lies and 
confusing articles, yours or others, on 35 mm slides or video.  During 
this evening, it will be allowed to lie but not to borrow credit, so 
please do not forget to mention the producers' names.  After the 
informal presentations and truthful debates, the audience will choose 
the biggest (visualization) lie for 1992.  When the evening is over, 
lying will be outlawed again.  Then, we will be all able to benefit 
from this teaching of what it takes to produce realistic and faithful 
visualizations.

	Reservations and advance submissions are now being accepted 
(c/o Nahum Gershon, The MITRE Corporation, 7525 Colshire Drive, 
McLean, VA 22102).  Both are not required but are strongly 
recommended.  For more information (genuine!), please contact 
gershon@mitre.org or (703) 883-7518.
From: CDO@IB.RL.AC.UK (C D Osland)
Newsgroups: comp.graphics.visualization
Subject: Re: Color Postscript Printer
Date: 9 Oct 92 12:22:59 GMT

On 6 Oct 92 18:01:28 GMT <kramer@COM.ILIGHT> said:
>I am interested in getting people's opinions about
>Color Postscript printers.  Specifically, which printers
>you would recommend for quality hard copies, and what
>kind of speed I can expect?
>
(Usual disclaimers about these being personal opinions and me not
being associated with any of the manufacturers or suppliers.)

QMS ColorScript model 10 (A4)

   Has functioned fine for about a year.  We were disappointed to
   find that we couldn't do OHP foils on it unattended - they stick
   together in the output tray.  It goes into a funny state when
   it runs out of media - another pain for unattended service.
   We have totally valid (checked by software, on other printers
   and various on-screen viewers) PostScript files that it bombs on;
   have not managed to get any response from QMS on this.

Tektronix Phaser (A4/A3)

   We don't have one yet but have one on order.  Hope it is going to
   solve the problems with unattended foil output (it can take
   paper-backed foil); reports from CERN and Manchester are that it
   will be good.

Kodak 7720 (A4 ish)

   Superb quality output, which repro departments are very happy
   to use as if it was photograhic.  Hellishly expensive to run
   compared with the above devices, but in the same league as other
   photographic quality output.  Whole process (going through a
   Mac 900) rather tedious in comparison with builtin PS interpreter.
   We have one and it will continue to be used whenever its quality
   is required.

Canon BJC-800 with PhotoScript board

   The only demo we had of this was very disappointing; a file that
   rasterizes in seconds on the QMS took minutes with PhotoScript and
   a file that took about a minute on the QMS hadn't finished after
   half an hour.  Quality of output was fine - good match with QMS
   colours.  Decided against this.

Canon CLC-10 with IPU and FoP interpreter

   In price/performance this is great, having the scanner (and
   therefore copier) all in the price ($(UK)5000 including
   connection to a PC and all the software.  Scanner worked very
   well and rasterizing (FoP again, now on a 486/50) was very
   quick.  The down side is that the recommended duty cycle is
   only 500 pages per month.  But we were impressed and are looking
   for the money to get one.

(Not colour but seeking help)

Apple LaserWriter IIg

   We got one of these a couple of weeks back.  All fine except the
   blurb says it has 35 fonts and the manual says one of these is
   ITC ZapfDingbats but the printer says it doesn't and has
   EmulationFont instead.  Are Dingbats still there and not enabled
   or are the manual and printer at odds with each other?
   Apple support in the UK is so crumby it is easier to ask the net!
   (It's not attached to a Mac but a VAX.)

Cheers

Chris Osland
Head of Computer Graphics
Rutherford Appleton Laboratory, Oxfordshire, UK
From: CDO@IB.RL.AC.UK (C D Osland)
Newsgroups: comp.graphics.visualization
Subject: Re: Recommendation on literary sources for graphical data
 representatio
Date: 13 Oct 92 08:16:09 GMT

On 12 Oct 92 19:45:44 GMT <spl@EDU.UCSD.PITSTOP> said:
>In article <1992Oct12.184931.22449@llyene.jpl.nasa.gov>
> robert@triton.Jpl.Nasa.Gov writes:
>>
>>I'm looking for any literacture on graphical data representation.
>Particularly
>>on how to display different forms of data...  Has anyone written anything
>>on this????
>
>Yes, there is an excellent book by someone named Tufte.  Sorry, but I
>don't remember the title offhand.  I think that Eugene Miya refers to
>it in one of the FAQs he maintains but I may be mistaken there.
>Anyhow, you see it advertised all of the time in magazines like
>Scientific American -- it's the one with the chart showing the
>progress of Napoleon's failed assault on Russia in it.
>
Tufte E.R.
The Visual Display of Quantitative Information
Graphics Press 1983 (I think there's a second edition as well)

For lots of refs in this area, try a book of which I was an editor
(but receive no royalties!!!)

Brodlie K.W. et al
Scientific Visualization: Techniques and Applications
Spring-Verlag 1992
ISBN 0-387-54565-4

Cheers

Chris Osland
Computer Graphics Group, Rutherford Appleton Lab., UK
Newsgroups: comp.graphics.visualization
From: chris@chinook.atd.ucar.edu (Chris Webster)
Subject: Re: Print Postscript-File on Laserprinter
Reply-To: chris@chinook.atd.ucar.edu
Organization: Research Aviation Facility, NCAR, Boulder, CO
Date: Thu, 15 Oct 1992 13:16:00 GMT

hz231gr@unidui.uni-duisburg.de (Paul-Gerhard Gressel) writes:
>Hallo,
>
>we are searching for a UNIX-(X)-Program that can print Postscript-Files
>on Laserprinters.

try lpr

--Chris
From: CDO@IB.RL.AC.UK (C D Osland)
Newsgroups: comp.graphics.visualization
Subject: Re: RGB to pixel values,colormap
Date: 9 Oct 92 10:45:49 GMT

On 8 Oct 92 21:13:56 GMT <dwight@EDU.UOKNOR.GCN.GEOHUB> said:
>I need an algorithm to conver RGB into a set of 256 intensity values and create
>a colormap
>of 256 colors. HELP!
>----------------------------------------------------------------------------
>Dwight D. Moore
>Geosciences Computing Network
>University of Oklahoma

Lots of lovely software for this in the Utah Raster Toolkit, urt.

Chris Osland
Rutherford Appleton Laboratory, UK
Newsgroups: comp.graphics.visualization
From: tohanson@gonzo.lerc.nasa.gov (Jeff Hanson)
Subject: Call for speakers for Computational Mechanics Congress
Organization: NASA Lewis Research Center
Date: Fri, 16 Oct 1992 20:52:23 GMT

I am organizing a session on visualization at the Second U.S. National
Congress on Computational Mechanics (August 16-18, 1993).  I am looking for
5 speakers who are interested in participating.  Each talk will be 25 minutes
and the conference organizers hope to publish the papers in special issues
of several journals.  If you are interested please get in touch with me.
I will be at IEEE Visualization 92 next week (from Tuesday night to
Friday morning) and I would be happy to speak with anyone there.  If you
want to know what I look like, the file jhanson.gif is a scan of my
driver's license and can be ftp'd from swedishchef.lerc.nasa.gov in the
top level directory.  TIA.
-- 
---------------------------------------------------------------------------
 Jeff Hanson - Scientific Graphics Programmer and Workstation Administrator
 Sverdrup Technology, NASA Lewis Research Center Group
 NASA Lewis Research Center, MS 86-4, Cleveland, Ohio 44135
 Telephone - (216) 433-2284  Fax - (216) 433-2182
 tohanson@gonzo.lerc.nasa.gov	-   ViSC: Better Science Through Pictures
 Visualize whirled peas - Bumper sticker seen in Buffalo, NY
From: hz231gr@unidui.uni-duisburg.de (Paul-Gerhard Gressel)
Newsgroups: comp.graphics.visualization
Subject: Print Postscript-File on Laserprinter
Date: 15 Oct 1992 10:56:18 +0100
Organization: Universitaet Duisburg GH
NNTP-Posting-Host: unidui.uni-duisburg.de
Summary: Print Postscript-File on Laserprinter
Keywords: Postscript, Laserprinter

Hallo,

we are searching for a UNIX-(X)-Program that can print Postscript-Files
on Laserprinters.

Thanks
------------------------------------------------------------------------------
Paul-Gerhard Gressel
Hochschulrechenzentrum
Universitaet Duisburg
From: honig@buckaroo.ics.uci.edu (David A. Honig)
Subject: Re: IDL
Newsgroups: comp.graphics.visualization
Reply-To: honig@ics.uci.edu (David A. Honig)
Organization: UC Disneyland, in the Kingdom of Bren
Date: 7 Oct 92 21:08:07 GMT

 belaton@csgi60.dcs.leeds.ac.uk (B Belaton) writes:
>In article <1992Oct3.092909.527@cine88.cineca.it>, lc1bocv1@cine88.cineca.it writes:
>> I apologize for the FAQ, but can anyone explaine me what IDL is ?
>> Thanks in advances to everyone.
>>
>> fabrizio ravegnani
>> lc1bocv1@cine88.cineca.it
>>
> IDL .... Interactive Data Language, recently its has been integrate with the
> IMSL product. A kind of script based (as opposed to visual programming based)
> visualisation package.
>
> bahari belaton
> belaton@scs.leeds.ac.uk


Script based?  Its an interactive interpreter, with apl-like handling
of arrays.  You can write programs in it, interact with it, use
it as a filter, call it from your favorite language, etc.  It comes
with a long list of functions already implemented.  It seems fairly
fast.

dh
--
David "Dances with Motion Sensors" Honig

'People that are really very wierd can get into sensative positions
and have a tremendous impact on history.'	-- Vice President Dan Quayle
Newsgroups: comp.graphics.visualization,comp.graphics,alt.graphics,alt.graphics.pixutils
From: nak7558@tamsun.tamu.edu (Neal Andrew Krawetz)
Subject: Models Needed
Organization: Texas A&M University, College Station
Distribution: usa
Date: Thu, 8 Oct 1992 15:40:24 GMT

Does anyone have any good scenes (objects) for both raytracing and radiosity?
For a final project, we must make a program that can render with both
methods.  We are looking for some objects/models to render.  Simple objects
are prefered (not 20,000 polygons please!).  If you have any good models,
please e-mail (I don't check rn too often) them to:  nak7558@tamsun.tamu.edu

The actual image is not necessary (since we plan to render it), but the
model with objects is.  Please also include to name of the render-program
(such as dkbtrace or renderman, etc.) so we may understand the script.

Thanks you!

					-Neal Krawetz
					nak7558@tamsun.tamu.edu

Newsgroups: comp.graphics.visualization
From: eugene@amelia.nas.nasa.gov (Eugene N. Miya)
Subject: [l/m 8/10/1992] Shell2 -- the outrigger	(2/4) c.g.v.FAQ2
Followup-To: poster
Organization: NAS Program, NASA Ames Research Center, Moffett Field, CA
Date: Thu, 8 Oct 92 11:45:08 GMT
Reply-To: eugene@amelia.nas.nasa.gov (Eugene N. Miya)

#Disabled
Archive-name: comp.viz.faq

	"Feed me."  -- Audrey II, the Plant in "The Little Shop of Horrors."

Contents
========

Intro
-----
What is visualization?
----------------------
Systems
-------
Issue/problems
--------------
Netiquette
----------
References
----------
================================

Intro
-----

The quality of this FAQ is directly proportional to the information
mailed by participants (that's you) to the maintainer (me, Amelia).
You don't like it?  Blame the rest of the posters and readers.
I don't have 100% time to maintain this.  We are starting from scratch.
If an address or phone is out of date?  Blame the group.  I'm just a dumb
computer posting as I am told.

The structure of this FAQ is currently a twice monthly post, with two
weekly outriggers pointing to the Long version.  We will see how well
this works (empirical science).

You should not have to see this file all the time.  Don't bother saving it
unless you have a flakey net connection.   Grab the most recent revision
off the net.  The Subject: line is designed to fit within the 24-char limit
of most Killfile systems.  Learn about Killfiles.  If you have something
against FAQ files, the regular expression /.*FAQ$/ will Kill All My Children
and me.  We suggest that you learn how to use news and how news works
before complaining.  See news.annouce.newusers.
This post is like a lighthouse or a fog horn.  Learn how to use it.

This is the outrigger, the main FAQ will be posted next week.

Newsgroups: comp.graphics.visualization
From: mazzucch@ghost.dsi.unimi.it (massimo mazzucchi)
Subject: PC GLOBE and ..
Keywords: information
Organization: Computer Science Dep. - Milan University
Date: Mon, 12 Oct 1992 09:19:49 GMT


HY

I am Max froma ITALY Milan

I want know if someone know if exist a programm like
PC-GLOBE or PC-USA about a part of town or a quarter
with information about population and othr info.

- if someone know that programm graphic it was used to
  realize PC-GLOBE or PC-USA


  Thanks for your help

  BYE


  My address is mazzucch@ghost.dsi.unimi.it
From: smothers@nauvax.ucc.nau.edu
Newsgroups: comp.graphics.visualization
Subject: Wavefront
Date: 12 Oct 92 22:49:42 GMT
Organization: Northern Arizona University

Anybody in bitland know where I can score a conversion program to convert
3-D Studio 2.0 objects into Wavefront Objects?

Please post here or send to the e-mail above.
For the truly adventerous you can call me at (602) 773-9614.

mark
----
smothers@nauvax.nau.ucc.edu
To know me is to know me.
From: S.Marshall@sequent.cc.hull.ac.uk (Simon Marshall)
Newsgroups: comp.graphics
Subject: Nearest point on a line from a point. How do I do it in 3D?
Date: 10 Oct 92 14:00:40 GMT


	Hello to you all, can anyone help?  I'm trying to find the shortest
    distance from a point to a line, and the coordinates of that point on
    the line, in 3D.  I've tried to fiddle with the solution for 2D from
    Graphics Gems II, but without success.  Please can anyone give me a hot
    tip, or reference where I can find one?

	Specifically, what I am trying to do is work out how high a 1D
    column is after a sphere of radius r has travelled from (x1,y1,z1) to
    (x2,y2,z2).  The column is the line (x,y,zlow), (x,y,zhigh).  I need to
    find the nearest position of the sphere to the column line, so I can
    work out how much the sphere cuts the column down (if at all).  Any
    ideas anyone?

	Many thanks, in advance, Simon.
_______________________________________________________________________________
Simon Marshall, Dept. of Computer Science, University of Hull, Hull HU6 7RX, UK
  "Football isn't about life and death.  It's more important than that." Bill
Email: S.Marshall@Hull.ac.uk    Phone: +44 482 465181    Fax: 466666   Shankley
From: dbj@cns.neusc.bcm.tmc.edu (David Jaffe)
Newsgroups: comp.graphics
Subject: Filter to HP Deskjet500C
Date: 15 Oct 1992 15:10:40 GMT
Organization: Baylor College of Medicine, Houston,Tx
Distribution: world
NNTP-Posting-Host: cns.neusc.bcm.tmc.edu
Summary: filter to convert bitmaps for HP deskjet
Keywords: deskjet


I'm looking for a filter to convert your average color bitmap into a
form amenable to a HP Deskjet 500C, which I presume is PCL format.  Is
there a filter floating around the net (aka pbmplus) that will do the
job?
From: i6finn@aud2.aud.auc.dk
Newsgroups: comp.graphics
Subject: Editing .pcx-files (avoid scaling in Corel ?)
Date: 13 Oct 92 14:38:17 GMT
Organization: Aalborg University Center, Denmark

Problem: I want to edit a pcx-file (e.g. add a few lines and
         some text).

I have access to CorelDraw 2.0 (and the manuals) but after
import - edit - export the scaling has changed (fit to page ?).
How do I avoid that CorelDraw scales the figures ?
Any other suggestions for editing pcx-files (PC) ?

Thanks in advance ....       and please E-mail.

Finn M. Jensen
Department of Building Technology and Structural Engineering
Aalborg University     :    Phone: +45 98 15 85 22, Ext. 6649
Sohngaardsholmsvej 57  :    Fax: +45 98 14 82 43
DK-9000 Aalborg        :    E-mail: i6finn@aud.auc.dk
Denmark, Europe        :
Newsgroups: comp.graphics
From: mazzucch@ghost.dsi.unimi.it (massimo mazzucchi)
Subject: ClipperScanner
Organization: Computer Science Dep. - Milan University
Date: Tue, 13 Oct 1992 15:30:11 GMT


Hi

I am a programmer with CLIPPER
i want know

- what is the library that permit to use image with scanner
  with clipper

  - what is the bbs where i can have to access to get
    this librAry


    Thanks for your help

    My address is mazzucch@ghost.sm.dsi.unimi.it


    Bye
From: sg04@ploni.gte.com (Yechezkal Shimon Gutfreund)
Newsgroups: comp.graphics
Subject: Re: Issues of Computer Graphics
Date: 8 Oct 92 17:02:36 GMT
Reply-To: sgutfreund@gte.com
Organization: GTE Laboratories, Waltham MA

In article <1980@acf5.NYU.EDU>, checker@acf5.NYU.EDU (checker) writes:
|> rsc@altair.csustan.edu (Steve Cunningham) writes:
|> >Instead, we will "publish" an on-line
|> >special (unnumbered) issue about that time that will appear on siggraph.org and
|> >will be available by ftp and e-mail.  This experiment with online publication
|> >will help fill the publication gap and should help us learn about the viability
|> >of online publications.


While we are on this subject. I noticed that there has been
only one issue of CG this year (outside of the conference
proceedings). Perhaps you could make public notice in c.g explaining
what is going on.


-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Yechezkal Shimon Gutfreund		 		  sgutfreund@gte.com
GTE Laboratories, Waltham MA			    harvard!bunny!sgutfreund
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
From: IMAGING.CLUB@OFFICE.WANG.COM ("Imaging Club")
Newsgroups: comp.graphics
Subject: Networld show in Dallas runs October 13, 14 and 15
Date: 7 Oct 92 23:24:33 GMT
Organization: Mail to News Gateway at Wang Labs

The Networld 92 exhibition in Dallas is taking place on October
13 (10:00-5:00), 14 (10:00-5:00) and 15 (10:00-4:00) at
the Dallas Convention Center.

Michael.Willett@OFFICE.Wang.com
From: shekhtman@iccgcc.decnet.ab.com (IGOR SHEKHTMAN x3690)
Newsgroups: comp.graphics
Subject: Looking for 32k color graphical images
Date: 7 Oct 92 10:20:46 EST

I am looking for some FTP Sites where I can download some high resolution
graphical images with my Diamond Stealth 1MB SVGA card and my NEC 4FG color
monitor.  Basically I need to be able to display their maximum performance. 
Rescently I visited a local computer trade show where I saw some unbelivable
32k color 1024x768 images.  They looked better on the screen than in person.  
If someone knows of a FTP site where I could access these from, please let me
know.
Thanks in advance,

Igor.
Newsgroups: comp.graphics
Subject: Raster to Vector conversion software...
From: Tony_Garnockjones@kcbbs.gen.nz (Tony Garnockjones)
Date: 10 Oct 92 04:33:00 GMT
Organization: Kappa Crucis Unix BBS, Auckland, New Zealand

I know of two raster -> vector conversion programs for the Archimedes 
(RISCOS) computers.  !Trace, written by Jason Williams is (I think) 
PD.  I assume it is written in C.
   The other program, !Tracer, is written in machine code and VERY fast 
- I converted MCEscher's waterwheel picture from a raster (640x480) 
to a vector file in something like 5 seconds.  Less complicated pictures 
will take less time.  The program automatically handles monochrome pictures 
but with colour, help is required by the user.
   !Tracer is written by a company called Midnight Graphics.

    The better quality output is achieved by !Trace (by J.W.), and even 
though it can be very slow, it handles colour automatically - throw 
it a Spritefile and it will give you back a coloured Drawfile (vector 
format).

    I'm sure Jason will be willing to give you some help/info.  He can 
be reached at jwil1@cs.aukuni.ac.nz
From: gavin@krypton.asd.sgi.com (Gavin Bell)
Newsgroups: comp.graphics
Subject: Re: Determining if a polygon is convex
Date: 14 Oct 92 20:32:43 GMT
Organization: Silicon Graphics, Inc.  Mountain View, CA
NNTP-Posting-Host: krypton.asd.sgi.com

In <1bhv6cINNgfq@fido.asd.sgi.com> zhu@sgi.com (Benjamin Zhu) writes:
>>>  If the sum is 360 or -360 degrees, the polygon is concave.
>>	So where do you tell if it's convex?
Oops, make that:

If the sum is 360 or -360 degrees, it is convex.

The first test makes sure all loops go in the same direction (if we
switch from clockwise to counterclockwise looping, there must be a
convex vertex somewhere).

The second test should give the winding number of the polygon; if it
is 1 (or -1) then there is only 1 loop.

Unless I'm being brain-dead.
--
--gavin     (gavin@sgi.com,  (415)390-1024)
Newsgroups: comp.graphics
From: george@alpha.ee.ufl.edu (George L)
Subject: Re: Blue screen image processing
Organization: EE Dept at UF
Date: Fri, 9 Oct 92 23:56:50 GMT

In article <1992Oct8.155742.1@cbrown.claremont.edu>, dhosek@cbrown.claremont.edu writes:
|> Does anybody know of image processing software which will be able
|> to do  "blue screen" effects? i.e., take all occurences of a
|> given color in an image and replace them with another image?
|> (Like the TV weather guys use.)
|> 
To help you in your quest, I believe the correct term for what you seek is
called Chroma Keying. Shouldn't be too difficult to do. You should be able 
to write a simple script in pbmplus to do it.

Good Luck,
george@alpha.ee.ufl.edu
From: rcskb@minyos.xx.rmit.oz.au (Kendall Bennett)
Newsgroups: comp.graphics
Subject: Re: Sprite Engine News, VOL #1
Date: 15 Oct 92 03:49:07 GMT
Organization: RMIT Computer Centre
NNTP-Posting-Host: minyos.xx.rmit.oz.au

Interesting idea, but you are missing something. All of the sprite 
definition and background definition data is stored in the computers
main memory. How is the sprite engine going to be able to access this
data 70 times a second, evern on a lowly XT?

It would be my gues that it basically can't. If you want this project
to work, I would suggest that the sprite defintions etc need to be 
store in easily accessible memory on the actual sprite engine.

Ciao.

+------------------------------------------+-------------------------------+
| Kendall Bennett                          | Internet:                     |
| RMIT Advanced Computer Graphics Centre   | kjb@citri.edu.au              |
| CITRI Building, 723 Swanston Street      | rcskb@minyos.xx.rmit.oz.au    |
| Carlton Victoria 3053 AUSTRALIA.         |                               | 
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