代码拉取完成，页面将自动刷新
同步操作将从 peiss/ant-exercises-sklearn 强制同步，此操作会覆盖自 Fork 仓库以来所做的任何修改，且无法恢复！！！
确定后同步将在后台操作，完成时将刷新页面，请耐心等待。
text
"From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: thining algorithm
Organization: Purdue University
Lines: 15
In article <1q7615INNmi@shelley.u.washington.edu> kshin@stein.u.washington.edu
(Kevin Shin) writes:
> I am trying obtain program to preprocess handwriting characters.
> Like thining algorithm, graph alogrithm.
> Do anyone know where I can obtain those?
I usually use ""Algorithms for graphics and image processing"" by
Theodosios Pavlidis, but other people here got them same idea and now
3 of 4 copies in the libraries have been stolen!
Another reference is ""Digital Image Processing"" by Gonzalez and
Wintz/Wood, which is widely available but a little expensive ($55
here- I just checked today).
ab
"
"From: stephens@geod.emr.ca (Dave Stephenson)
Subject: Re: Clementine Science Team Selected
Nntp-Posting-Host: ngis.geod.emr.ca
Organization: Dept. of Energy, Mines, and Resources, Ottawa
Lines: 32
nickh@CS.CMU.EDU (Nick Haines) writes:
>In article <stephens.734792933@ngis> stephens@geod.emr.ca (Dave Stephenson) writes:
> Remember the first government scientist in the British Empire was
> the Astronomer Royal, who was paid [...] from the Department
> of Ordinance Budget (i.e. the military). Flamsteed House (the original
> RGO) was built out of Army Surplus Scrap ( A gate house at the Tower of
> London ?), and paid for by the sale of time expired gunpowder [...]
>At the time, astronomy was vital to the military, in that navigation
>and cartography were of primary impoortance to the military, and good
>cartography was impossible without good astronomy.
>The relevance these daysis somewhat less obvious.
>Nick
It still applies, except the astronomy these days is Very Long Baseline
Radio Astronomy coupled to GPS and Satellite Laser Ranging. The data
from NASA's and the Naval Observatory's (among others) is a vital
source of data for studies into crustal dynamics, Earth rotation, and
purturbations. Every time there is a leap second added to the New Year,
remember the military and science are still co-habiting nicely. The
same VLBI was used to track Gallileo as it passed the Earth, and used
so little fuel that it can afford to observe Ida.
--
Dave Stephenson
Geodetic Survey of Canada
Ottawa, Ontario, Canada
Internet: stephens@geod.emr.ca
"
"From: dotzlaw@ccu.umanitoba.ca (Helmut Dotzlaw)
Subject: Anti-aliasing utility wanted
Nntp-Posting-Host: murphy.biochem.umanitoba.ca
Organization: University of Manitoba
Lines: 10
I am currently using POVRay on Mac and was wondering if anyone in netland
knows of public domain anti-aliasing utilities so that I can skip this step
in POV, very slow on this machine. Any suggestions, opinions about
post-trace anti-aliasing would be greatly appreciated.
Helmut Dotzlaw
Dept. of Biochemistry and Molecular Biology
University of Manitoba
Winnipeg, Canada
dotzlaw@ccu.umanitoba.ca
"
"From: flb@flb.optiplan.fi (""F.Baube[tm]"")
Subject: The Area Rule
X-Added: Forwarded by Space Digest
Organization: [via International Space University]
Original-Sender: isu@VACATION.VENARI.CS.CMU.EDU
Distribution: sci
Lines: 12
I read it refered to as the ""parabolic cross-section"" rule;
the idea was that if you plot the area of the fuselage cross-
section as a function of the point fore-and-aft along the
fuselage, a plot that is a **paraboloid** minimizes somethin'
or 'nother (to be technical about it).
--
* Fred Baube (tm) * In times of intellectual ferment,
* baube@optiplan.fi * advantage to him with the intellect
* #include <disclaimer.h> * most fermented
* May '68, Paris: It's Retrospective Time !!
"
"From: cchung@sneezy.phy.duke.edu (Charles Chung)
Subject: Re: What if the USSR had reached the Moon first?
Lines: 24
Nntp-Posting-Host: bashful.phy.duke.edu
In article <1993Apr20.152819.28186@ke4zv.uucp> gary@ke4zv.uucp (Gary
Coffman) writes:
> >Why do you think at least a couple centuries before there will
> >be significant commerical activity on the Moon?
>
> Wishful thinking mostly.
[Lots of stuff about how the commerical moonbase=fantasyland]
Then what do you believe will finally motivate people to leave the
earth? I'm not trying to flame you. I just want to know where you
stand.
-Chuck
---
*******************************************************************
Chuck Chung (919) 660-2539 (O)
Duke University Dept. of Physics (919) 684-1517 (H)
Durham, N.C. 27706 cchung@phy.duke.edu
""If pro is the opposite of con,
then what is the opposite of progress?""
*******************************************************************
"
"From: HURH@FNAL.FNAL.GOV (Patrick Hurh)
Subject: Rayshade to DXF,RIB,etc.. (Strata)?
Organization: FNAL
Lines: 30
Distribution: world
NNTP-Posting-Host: adnet13.fnal.gov
I'm a mac user who wants to use some of the rayshade models I've built
using macrayshade (rayshade-M) with Stratavision 3d. Since Stratavision
can import many different model files I thought this would be a cinch...
but I haven't been able to find a simple translator that will work on the
mac. Any ideas?
Stratavision 3d should be able to import:
DXF
MiniCAD
Super 3d
Swivel 3d professional
out of the box and:
RIB
IGS
with externals.
Also, if anyone knows of any other translator externals available for
Stratavision 3d (esp. Rayshade!) please e-mail me!
BTW, I'm going to send mail to the rayshade usrs mailing list tomorrow (I
misplaced the address) but since most users of rayshade do not seem to
operate with macs, I'm not getting my hopes up...
thanks in advance,
--patrick. hurh@fnal.fnal.gov
"
"From: bosch@rz.uni-karlsruhe.de (Gerhard Bosch)
Subject: Re: Newsgroup Split
Organization: University of Karlsruhe, Germany
Lines: 55
Distribution: world
NNTP-Posting-Host: ifh-hp2.bau-verm.uni-karlsruhe.de
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit
In article <NERONE.93Apr20085951@sylvester.cc.utexas.edu>, nerone@ccwf.cc.utexas.edu (Michael Nerone) writes:
|> In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
|>
|> CH> Concerning the proposed newsgroup split, I personally am not in
|> CH> favor of doing this. I learn an awful lot about all aspects of
|> CH> graphics by reading this group, from code to hardware to
|> CH> algorithms. I just think making 5 different groups out of this
|> CH> is a wate, and will only result in a few posts a week per group.
|> CH> I kind of like the convenience of having one big forum for
|> CH> discussing all aspects of graphics. Anyone else feel this way?
|> CH> Just curious.
|>
|> I must agree. There is a dizzying number of c.s.amiga.* newsgroups
|> already. In addition, there are very few issues which fall cleanly
|> into one of these categories.
|>
|> Also, it is readily observable that the current spectrum of amiga
|> groups is already plagued with mega-crossposting; thus the group-split
|> would not, in all likelihood, bring about a more structured
|> environment.
|>
|> --
|> /~~~~~~~~~~~~~~~~~~~\/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\
|> / Michael Nerone \""I shall do so with my customary lack of tact; and\
|> / Internet Address: \since you have asked for this, you will be obliged\
|> /nerone@ccwf.cc.utexas.edu\to pardon it.""-Sagredo, fictional char of Galileo.\
Hi,
It might be nice to know, what's possible on different hard ware platforms.
But usually the hard ware is fixed ( in my case either Unix or DOS- PC ).
So I'm not much interested in Amiga news.
In the case of Software, I won't get any comercial software mentioned in this
newgroup to run on a Unix- platform, so I'm not interested in this information.
I would suggest to split the group. I don't see the problem of cross-posting.
Then you need to read just 2 newgroups with half the size.
BUT WHAT WOULD BE MORE IMPORTANT IS TO HAVE A FAQ. THIS WOULD REDUCE THE
TRAFFIC A LOT.
Sincerely, Gerhard
--
I'm writing this as a privat person, not reflecting any opinions of the Inst.
of Hydromechanics, the University of Karlsruhe, the Land Baden-Wuerttemberg,
the Federal Republic of Germany and the European Community. The address and
phone number below are just to get in touch with me. Everything I'm saying,
writing and typing is always wrong ! (Statement necessary to avoid law suits)
=============================================================================
- Dipl.-Ing. Gerhard Bosch M.Sc. voice:(0721) - 608 3118 -
- Institute for Hydromechanic FAX:(0721) - 608 4290 -
- University of Karlsruhe, Kaiserstrasse 12, 7500-Karlsruhe, Germany -
- Internet: bosch@ifh-hp2.bau-verm.uni-karlsruhe.de -
- Bitnet: nd07@DKAUNI2.BITNET -
=============================================================================
"
"From: nsmca@aurora.alaska.edu
Subject: Re: Why not give $1 billion to first year-long moon residents?
Article-I.D.: aurora.1993Apr19.130503.1
Organization: University of Alaska Fairbanks
Lines: 21
Nntp-Posting-Host: acad3.alaska.edu
In article <6ZV82B2w165w@theporch.raider.net>, gene@theporch.raider.net (Gene Wright) writes:
> With the continuin talk about the ""End of the Space Age"" and complaints
> by government over the large cost, why not try something I read about
> that might just work.
>
> Announce that a reward of $1 billion would go to the first corporation
> who successfully keeps at least 1 person alive on the moon for a year.
> Then you'd see some of the inexpensive but not popular technologies begin
> to be developed. THere'd be a different kind of space race then!
>
> --
> gene@theporch.raider.net (Gene Wright)
> theporch.raider.net 615/297-7951 The MacInteresteds of Nashville
====
If that were true, I'd go for it.. I have a few friends who we could pool our
resources and do it.. Maybe make it a prize kind of liek the ""Solar Car Race""
in Australia..
Anybody game for a contest!
==
Michael Adams, nsmca@acad3.alaska.edu -- I'm not high, just jacked
"
"From: aron@tikal.ced.berkeley.edu (Aron Bonar)
Subject: Re: Photoshop for Windows
Organization: University of California, Berkeley
Lines: 26
Distribution: world
NNTP-Posting-Host: tikal.ced.berkeley.edu
In article <1993Apr22.011720.28958@midway.uchicago.edu>, dgf1@quads.uchicago.edu (David Farley) writes:
|> In article <C5uHIM.JFq@rot.qc.ca> beaver@rot.qc.ca (Andre Boivert) writes:
|> >
|> >
|> >I am looking for comments from people who have used/heard about PhotoShop
|> >for Windows. Is it good? How does it compare to the Mac version? Is there
|> >a lot of bugs (I heard the Windows version needs ""fine-tuning)?
|> >
|> >Any comments would be greatly appreciated..
|> >
|> >Thank you.
|> >
|> >Andre Boisvert
|> >beaver@rot.qc.ca
|> >
|> An review of both the Mac and Windows versions in either PC Week or Info
|> World this week, said that the Windows version was considerably slower
|> than the Mac. A more useful comparison would have been between PhotoStyler
|> and PhotoShop for Windows. David
|>
I don't know about that...I've used Photoshop 2.5 on both a 486dx-50 and a Quadra
950...I'd say they are roughly equal. If anything the 486 was faster.
Both systems were running in 24 bit color and had the same amount of RAM (16 megs)
I also believe the quadra had one of those photoshop accelerators.
"
"From: joshuaf@yang.earlham.edu
Subject: Re: TIFF -> Anything?!
Organization: Earlham College, Richmond, Indiana
Lines: 15
In article <1993Apr23.033843.26854@spartan.ac.BrockU.CA>, tmc@spartan.ac.BrockU.CA (Tim Ciceran) writes:
> There is a program called Graphic Workshop you can FTP from
> wuarchive. The file is in the msdos/graphics directory and
> is called ""grfwk61t.zip."" This program should od everthing
> you need.
>
> --
>
> TMC
> (tmc@spartan.ac.BrockU.ca)
THANKS! It did work, and it is just what I needed thanks...
Joshuaf
"
"From: kruzifix@netcom.com (Living On The Edge......)
Subject: IMAGINE for PC??
Organization: Netcom - Online Communication Services (408 241-9760 guest)
Lines: 8
Is Impulse shipping IMAGINE for the PC386/486? How close is it to the
Amiga's IMAGINE 2.0, in terms of features?
=============================================================================
Roland Chia | >>> Air-Cooled >>>
EMAIL:kruzifix@netcom.com | >>> Free-Falling >>>
VOICE:(209)447-9403 | >>> Carbon Unit >>>
=============================================================================
"
"From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Space Station Redesign, JSC Alternative #4
Organization: U of Toronto Zoology
Lines: 14
In article <1ralibINNc0f@cbl.umd.edu> mike@starburst.umd.edu (Michael F. Santangelo) writes:
>... The only thing
>that scares me is the part about simply strapping 3 SSME's and
>a nosecone on it and ""just launching it."" I have this vision
>of something going terribly wrong with the launch resulting in the
>complete loss of the new modular space station (not just a peice of
>it as would be the case with staged in-orbit construction).
It doesn't make a whole lot of difference, actually, since they weren't
building spares of the station hardware anyway. (Dumb.) At least this
is only one launch to fail.
--
SVR4 resembles a high-speed collision | Henry Spencer @ U of Toronto Zoology
between SVR3 and SunOS. - Dick Dunn | henry@zoo.toronto.edu utzoo!henry
"
"From: ednobles@sacam.OREN.ORTN.EDU (Edward d Nobles)
Subject: windows imagine??!!
Organization: Oak Ridge National Laboratory
X-Newsreader: TIN [version 1.1 PL9]
Lines: 10
I sent off for my copy today... Snail Mail. Hope to get it back in
about ten days. (Impulse said ""a week"".)
I hope it's as good as they claim...
Jim Nobles
(Hope I have what it takes to use it... :>)
"
"From: pvconway@cudnvr.denver.colorado.edu
Subject: TIN files & coutours
Lines: 15
Hi!
I am working on a project that needs to create contour lines
from random data points. The work that I have done so far tells me that I
need to look into Triangulated Irregular Networks (TIN), the Delauney
criiterion, and the Krige method. Does anyone have any suggestions for
references, programs and hopefully source code for creating contours. Any
help with this or any surface modeling would be greatly appreciated.
I can be reached at the addresses below:
-- Paul Conway
PVCONWAY@COPPER.DENVER.COLORADO.EDU
PVCONWAY@CUDNVR.DENVER.COLORADO.EDU
"
"From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: HLV for Fred (was Re: Prefab Space Station?)
Article-I.D.: zoo.C51875.67p
Organization: U of Toronto Zoology
Lines: 28
In article <C5133A.Gzx@news.cso.uiuc.edu> jbh55289@uxa.cso.uiuc.edu (Josh Hopkins) writes:
>>>Titan IV launches ain't cheap
>>Granted. But that's because titan IV's are bought by the governemnt. Titan
>>III is actually the cheapest way to put a pound in space of all US expendable
>>launchers.
>
>In that case it's rather ironic that they are doing so poorly on the commercial
>market. Is there a single Titan III on order?
The problem with Commercial Titan is that MM has made little or no attempt
to market it. They're basically happy with their government business and
don't want to have to learn how to sell commercially.
A secondary problem is that it is a bit big. They'd need to go after
multi-satellite launches, a la Ariane, and that complicates the marketing
task quite significantly.
They also had some problems with launch facilities at just the wrong time
to get them started properly. If memory serves, the pad used for the Mars
Observer launch had just come out of heavy refurbishment work that had
prevented launches from it for a year or so.
There have been a few CT launches. Mars Observer was one of them. So
was that stranded Intelsat, and at least one of its brothers that reached
orbit properly.
--
All work is one man's work. | Henry Spencer @ U of Toronto Zoology
- Kipling | henry@zoo.toronto.edu utzoo!henry
"
"From: mccall@mksol.dseg.ti.com (fred j mccall 575-3539)
Subject: Re: nuclear waste
Organization: Texas Instruments Inc
Lines: 32
In <1pp6reINNonl@phantom.gatech.edu> matthew@phantom.gatech.edu (Matthew DeLuca) writes:
>In article <841@rins.ryukoku.ac.jp> will@rins.ryukoku.ac.jp (William Reiken) writes:
>> Well this pretty much says it. I have gotten alot of replys to this
>>and it looks like oil is only on Earth. So if those greedy little oil companys
>>who obviously don't give **** about it uses up all the oil then that leaves us
>>high a dry.
>Greedy little oil companies? Don't blame them; oil companies just supply the
>demand created by you, me, and just about everyone else on the planet. If we
>run out, its all our faults.
He also ignores a few other things. While organics would become
significantly more expensive were all the oil to disappear (and thus
some things would no longer be economically feasible), oil is hardly
an irreplaceable resource any more than most other consumables. As
supply decreases, prices rise and alternatives become more
competetive. He also needs to consider that there has been an
estimated 30 years of reserves pretty much as long as anyone has cared
about petroleum; whatever the current usage rate is, we always seem to
have about a 30 year reserve that we know about.
[I'm not sure that last figure is still true -- we tend not to look as
hard when prices are comparatively cheap -- but it was certainly true
during hte 'oil crisis' days of the 70's.]
--
""Insisting on perfect safety is for people who don't have the balls to live
in the real world."" -- Mary Shafer, NASA Ames Dryden
------------------------------------------------------------------------------
Fred.McCall@dseg.ti.com - I don't speak for others and they don't speak for me.
"
"From: oved3b@kih.no (Ove Petter Tro)
Subject: Re: need a viewer for gl files
Organization: Kongsberg College of Engineering
Lines: 16
Distribution: world
NNTP-Posting-Host: knoll.kih.no
In article <1qu36i$kh7@dux.dundee.ac.uk>, dwestner@cardhu.mcs.dundee.ac.uk (Dominik Westner) writes:
|> the subject says it all. Is there a PD viewer for gl files (for X)?
Try xviewgl.
(filename xviewgl_v1.1.tar.Z on lots of bases)
- Ove
--
- ----------==========###########==========-------- -
// | ""What do you think
\X/ (Yep, me too...) | this is? Real life?""
Ove Petter Tro, | - Ford Fairlane.
Kongsberg College |
of Engineering, Norway | email: ovep@kih.no
- ----------==========###########==========-------- -
"
"From: rbarris@orion.oac.uci.edu (Robert C. Barris)
Subject: Re: Rumours about 3DO ???
Nntp-Posting-Host: orion.oac.uci.edu
Summary: 3DO demonstration
Organization: University of California, Irvine
Keywords: 3DO ARM QT Compact Video
Lines: 73
In article <1993Apr16.212441.34125@rchland.ibm.com> ricardo@rchland.vnet.ibm.com (Ricardo Hernandez Muchado) writes:
>In article <1993Apr15.164940.11632@mercury.unt.edu>, Sean McMains <mcmains@unt.edu> writes:
>|> In article <1993Apr15.144843.19549@rchland.ibm.com> Ricardo Hernandez
>|> Muchado, ricardo@rchland.vnet.ibm.com writes:
>|> > And CD-I's CPU doesn't help much either. I understand it is
>|> >a 68070 (supposedly a variation of a 68000/68010) running at something
>|> >like 7Mhz. With this speed, you *truly* need sprites.
[snip]
(the 3DO is not a 68000!!!)
>|>
>|> Ricardo, the animation playback to which Lawrence was referring in an
>|> earlier post is plain old Quicktime 1.5 with the Compact Video codec.
>|> I've seen digitized video (some of Apple's early commercials, to be
>|> precise) running on a Centris 650 at about 30fps very nicely (16-bit
>|> color depth). I would expect that using the same algorithm, a RISC
>|> processor should be able to approach full-screen full-motion animation,
>|> though as you've implied, the processor will be taxed more with highly
>|> dynamic material.
[snip]
>booth there. I walked by, and they were showing real-time video capture
>using a (Radious or SuperMac?) card to digitize and make right on the spot
>quicktime movies. I think the quicktime they were using was the old one
>(1.5).
>
> They digitized a guy talking there in 160x2xx something. It played back quite
>nicely and in real time. The guy then expanded the window (resized) to 25x by
>3xx (320 in y I think) and the frame rate decreased enough to notice that it
>wasn't 30fps (or about 30fps) anymore. It dropped to like 15 fps. Then he
>increased it just a bit more, and it dropped to 10<->12 fps.
>
> Then I asked him what Mac he was using... He was using a Quadra (don't know
>what model, 900?) to do it, and he was telling the guys there that the Quicktime
>could play back at the same speed even on an LCII.
>
> Well, I spoiled his claim so to say, since a 68040 Quadra Mac was having
>a little bit of trouble. And this wasn't even from the hardisk! This was
>from memory!
>
> Could it be that you saw either a newer version of quicktime, or some
>hardware assisted Centris, or another software product running the
>animation (like supposedly MacroMind's Accelerator?)?
>
> Don't misunderstand me, I just want to clarify this.
>
The 3DO box is based on an ARM RISC processor, one or two custom graphics
chips, a DSP, a double-speed CDROM, and 2MB of RAM/VRAM. (I'm a little
fuzzy on the breakdown of the graphics chips and RAM/VRAM capacity).
It was demonstrated at a recent gathering at the Electronic Cafe in
Santa Monica, CA. From 3DO, RJ Mical (of Amiga/Lynx fame) and Hal
Josephson (sp?) were there to talk about the machine and their plan. We
got to see the unit displaying full-screen movies using the CompactVideo codec
(which was nice, very little blockiness showing clips from Jaws and Backdraft)
... and a very high frame rate to boot (like 30fps).
Note however that the 3DO's screen resolution is 320x240.
CompactVideo is pretty amazing... I also wanted to point out that QuickTime
does indeed slow down when one dynamically resizes material as was stated
above... I'm sure if the material had been compressed at the large size
then it would play back fine (I have a Q950 and do this quite a bit). The
price of generality... personally I don't use the dynamic sizing of movies
often, if ever. But playing back stuff at its original size is plenty quick
on the latest 040 machines.
I'm not sure how a Centris/20MHz 040 stacks up against the 25 MHz ARM in
the 3DO box. Obviously the ARM is faster, but how much?
Rob Barris
Quicksilver Software Inc.
rbarris@orion.oac.uci.edu
"
"From: chris@sarah.lerc.nasa.gov (Chris Johnston)
Subject: One day graphics/composites seminar
Organization: NASA Lewis Research Center, Cleveland, OH
Lines: 47
Distribution: world
Reply-To: chris@sarah.lerc.nasa.gov (Chris Johnston)
NNTP-Posting-Host: looney.lerc.nasa.gov
SAMPE, NCGA, The University of Akron, and NASA Lewis Research Center
is sponsoring:
COMPUTERS AND COMPOSITES
A one-day seminar devoted to practical applications of
computer workstations for efficient processing, design, and
Manufacture of composites
May 18, 1993
at
The University of Akron
Akron, Ohio
Speakers on:
Advancement in Graphics Visualization Dr. Jay Horowitz, NASA
Integrated Product Development with Mr. Michael R. Cowen
Network Workstations Sikorski Aircraft
Structural Analysis Mr. Brian Fite, NASA
Stereolithography Mr. Jason Williams, Penn State-Erie
Molecular and Physical Modeling Dr. Vassilios Galiatsato,
of Polymer Curing University of Akron
Process Modeling of Polymer
Matrix Composites Dr Ram Upadhyay, GE Corporate R&D
Registration Fees: $75.00 Advance, $100.00 on site (Includes box lunch)
Contact Gary Roberts, NASA Lewis Research Center (216) 433-344
or write:
SAMPE Regional Seminar
c/o Gary Roberts
NASA Lewis Research Center
21000 Brookpark Rd MS 49-1
Cleveland, Ohio 44135
Or Email to me, | and I'll get it to Gary.
|
\/
--
+---------------------------------------------------------------------------+
| Chris Johnston (216) 433-5029 |
| Materials Engineer (216) 433-5033 |
| NASA Lewis Research Center Internet: chris@sarah.lerc.nasa.gov |
| 21000 Brookpark Rd MS 105-1 |
| Cleveland, OH 4413 USA Resistance is futile! |
+---------------------------------------------------------------------------+
"
"From: prestonm@cs.man.ac.uk (Martin Preston)
Subject: Re: TIFF: philosophical significance of 42
Lines: 18
In <C5sCGu.1LL@mentor.cc.purdue.edu> ab@nova.cc.purdue.edu (Allen B) writes:
>I've got the 6.0 spec (obviously since I quoted it in my last posting).
>My gripe about TIFF is that it's far too complicated and nearly
>infinitely easier to write than to read,...
Why not use the PD C library for reading/writing TIFF files? It took me a
good 20 minutes to start using them in your own app.
Martin
--
---------------------------------------------------------------------------
|Martin Preston, (m.preston@manchester.ac.uk) | Computer Graphics |
|Computer Graphics Unit, Manchester Computing Centre, | is just |
|University of Manchester, | a load of balls. |
|Manchester, U.K., M13 9PL Phone : 061 275 6095 | |
---------------------------------------------------------------------------
"
"From: wdwells@nyx.cs.du.edu (David ""Fuzzy"" Wells)
Subject: Re: Space Debris
Organization: University of Denver, Dept. of Math & Comp. Sci.
Lines: 6
>There is a guy in NASA Johnson Space Center that might answer
>your question. I do not have his name right now but if you follow
>up I can dig that out for you.
Keesler, Loftus, Potter, Stansbery, Kubriek....?
"
"From: steinly@topaz.ucsc.edu (Steinn Sigurdsson)
Subject: Re: Vandalizing the sky
Organization: Lick Observatory/UCO
Lines: 23
NNTP-Posting-Host: topaz.ucsc.edu
In-reply-to: flb@flb.optiplan.fi's message of Fri, 23 Apr 1993 12:01:38 GMT
In article <C5xr2w.Dnw.1@cs.cmu.edu> flb@flb.optiplan.fi (""F.Baube[tm]"") writes:
From: ""Phil G. Fraering"" <pgf@srl03.cacs.usl.edu>
> Finally: this isn't the Bronze Age, [..]
> please try to remember that there are more human activities than
> those practiced by the Warrior Caste, the Farming Caste, and the
> Priesthood.
Right, the Profiting Caste is blessed by God, and may
freely blare its presence in the evening twilight ..
The Priesthood has never quite forgiven
the merchants (aka Profiting Caste [sic])
for their rise to power, has it?
;-)
* Steinn Sigurdsson Lick Observatory *
* steinly@lick.ucsc.edu ""standard disclaimer"" *
* Ya know... you penguin types offend me. ... *
* My Gosh... Life is offensive!! *
* Offensensitivity. - BB 1984 *
"
"From: rych@festival.ed.ac.uk (R Hawkes)
Subject: 3DS: Where did all the texture rules go?
Lines: 21
Hi,
I've noticed that if you only save a model (with all your mapping planes
positioned carefully) to a .3DS file that when you reload it after restarting
3DS, they are given a default position and orientation. But if you save
to a .PRJ file their positions/orientation are preserved. Does anyone
know why this information is not stored in the .3DS file? Nothing is
explicitly said in the manual about saving texture rules in the .PRJ file.
I'd like to be able to read the texture rule information, does anyone have
the format for the .PRJ file?
Is the .CEL file format available from somewhere?
Rych
======================================================================
Rycharde Hawkes email: rych@festival.ed.ac.uk
Virtual Environment Laboratory
Dept. of Psychology Tel : +44 31 650 3426
Univ. of Edinburgh Fax : +44 31 667 0150
======================================================================
"
"From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: Keeping Spacecraft on after Funding Cuts.
Organization: U of Toronto Zoology
Lines: 15
In article <19930423.010821.639@almaden.ibm.com> nicho@vnet.ibm.com writes:
>>Since we don't have the money to keep them going now, how will
>>changing them to a seperate agency help anything?
>>
>How about transferring control to a non-profit organisation that is
>able to accept donations to keep craft operational.
The problem is, you can't raise adequate amounts of money that way.
The Viking Fund tried. They did succeed, in a way, but only because
of the political impact of their fundraising. The actual amount of
money they raised was fairly inconsequential; it would not have kept
the Viking lander going by itself.
--
All work is one man's work. | Henry Spencer @ U of Toronto Zoology
- Kipling | henry@zoo.toronto.edu utzoo!henry
"
"From: ajjb@adam4.bnsc.rl.ac.uk (Andrew Broderick)
Subject: Re: Solar Sail Data
Keywords: Solar Sail
Organization: Rutherford Appleton Lab, UK
Lines: 79
In article <1993Apr15.051746.29848@news.duc.auburn.edu> snydefj@eng.auburn.edu writes:
>
>I am looking for any information concerning projects involving Solar
> Sails
I was at an interesting seminar at work (UK's R.A.L. Space Science
Dept.) on this subject, specifically on a small-scale Solar Sail
proposed as a student space project. The guy giving the talk was keen to
generate interest in the project. I'll typein the handout he gave out at
the meeting. Here goes :
The Microlight Solar Sail
-------------------------
1. Introduction
The solar sail is a well-established concept. Harnessing the pressure of
sunlight, a spacecraft would have unlimited range. In principle, such a
vehicle could explore the whole Solar System with zero fuel consumption.
However it is more difficult to design a practical solar sail than most
people realize. The pressure of sunlight is only about one kilogram per
square kilometer. Deploying and controlling the large area of aluminized
fabric which would be necessary to transport a 'conventional' type
spacecraft is a daunting task. This is why, despite the potential of hte
idea, no such craft has actually been launched to date.
2.Design
Recent advances in microelectronics make possible a different concept: a
tiny sail just a few metres in diameter which could be controlled purely
be electronics, with no mechanical parts. Several attitude control
methods are feasible: for example the pressure sunlight exerts on a
panel of solar cells varies according to whether power is being drawn.
The key components of the craft will be a minute CCD camera developed at
Edinburgh University which can act as both attitude sensor and data
gathering device; solar cells providing ~1 watt power for control and
communication; and a directional radio antenna etched onto the surface
of the sail itself. Launched as a piggyback payload, the total cost of
the mission can be limited to a few tens of thousands of dollars.
3.Missions
The craft would be capable of some ambitious missions. For example:
a) It could rendezvous with a nearby asteroid from the Apollo or Amor
groups. Closeup pictures could be transmitted back to Earth at a low bit
rate.
b) It could be steered into a lunar polar orbit. Previously unobserved
areas around the lunar poles could be viewed. By angling the sail to
reflect sunlight downwards, polar craters whose bases never receive
sunlight could be imaged. Bright reflections would confirm that
volatiles such as water ice have become trapped in these
locations.[Immensely valuable information for setting up a manned lunar
base, BTW]
c) It could be sent to rendezvous with a small asteroid or comet
nucleus. Impacting at low speed, a thin wire probe attached to the craft
causes it to rebound while capturing a tiny sample is a sharp-edged
tube, like performing a biopsy. Returning to Earth, the sail acts as an
ideal re-entry parachute: load per unit area 20 gm/m2 ensures that heat
is reradiated so efectively that the sail temperature cannot exceed ~300
deg C. The material sample is recovered, enclosed in a small insulating
container.
Contact: Colin Jack Tel. 0865-200447
Oxford Mathematical Designs, 131 High Street, Oxford OX1 4DH, England
--------------------------------
This guy would love to hear from anyone interested in this project or
seeking details or anything, and would be most happy to send you more
information.
Andy
--
-----------------------------------
Andy Jonathan J. Broderick, | ""I have come that they might have |
Rutherford Lab., UK | life, and have it to the full"" |
Mail : ajjb@adam2.bnsc.rl.ac.uk | - Jesus Christ |
"
"From: baalke@kelvin.jpl.nasa.gov (Ron Baalke)
Subject: SIRTF Mission is Still Alive
Organization: Jet Propulsion Laboratory
Lines: 114
Distribution: world
NNTP-Posting-Host: kelvin.jpl.nasa.gov
Keywords: SIRTF, JPL
News-Software: VAX/VMS VNEWS 1.41
From the ""JPL Universe""
April 23, 1993
SIRTF is still very much in business
By Mark Whalen
In these times of extra-tight NASA budgets, the very
survival of a number of missions has been uncertain. But thanks
to major design refinements implemented in recent months, JPL's
Space Infrared Telescope Facility (SIRTF) -- a major project
considered to be in trouble a couple of years ago -- is ""alive
and well,"" according to Project Scientist Michael Werner.
A lighter spacecraft, revised orbit and shorter mission have
added up to a less expensive project with ""tremendous scientific
power"" and a bright future, said Werner.
Designed as a follow-up to the highly successful Infrared
Astronomical Satellite (IRAS) and Cosmic Background Explorer
(COBE) missions, SIRTF -- a cryogenically cooled observatory for
infrared astronomy from space -- is scheduled for launch in 2000
or 2001 if plans proceed as scheduled.
IRAS' pioneering work in space-based infrared astronomy 10
years ago allowed astronomers to view the Milky Way as never
before and revealed, among other things, 60,000 galaxies and 25
comets. It provided a sky survey 1,000 times more sensitive than
any previously available from ground-based observations. COBE has
measured the infrared and microwave background radiation on large
angular scales, and revealed new facts about the early universe.
But to illuminate SIRTF's potential, Jim Evans, JPL's
manager of Astrophysics and Fundamental Physics Pre-Projects,
recently said that the project is ""1,000 to 1 million times more
capable than IRAS,"" based on technological advances in infrared
detector arrays.
However, despite the enormous strides in infrared
exploration SIRTF promised, and the fact that it was cited as the
highest priority new initiative for all of astronomy in the 1990s
(by the National Academy of Sciences), it took a ""diet or die""
directive from NASA Headquarters last year to keep the project
going, according to Werner.
The project is now known as Atlas SIRTF, based on the key
factor in its new design: The satellite will orbit the sun
instead of the Earth, permitting the use of an Atlas rocket
launch instead of the formerly proposed and heavier Titan. ""The
main advantage of the solar orbit is that you can use all of your
launch capability for boosting the payload -- you don't have to
carry up a second rocket to circularize the orbit,"" Werner said.
The other advantage to a solar orbit, he said, is that ""it's in a
better thermal environment, away from the heat of the Earth.""
Additional major changes in SIRTF's redesign include
shortening the mission from five to three years and building a
spacecraft that is less than half as heavy as in the original
plan -- Atlas SIRTF will weigh 2,470 kilograms (5,400 pounds)
compared to Titan SIRTF's 5,500 kilograms (12,100 pounds).
All of that adds up to ""a less stressful launch
environment,"" Werner said, and a cost savings of more than $200
million for the launch, in addition to increased savings in the
design of the smaller, less massive spacecraft.
Werner said SIRTF's redesign came as a result of Congress'
telling NASA ""you're trying to do too many things. If you want us
to support SIRTF, which is a good project, develop a plan to see
how it fits into (NASA's) overall strategy.""
Shortly thereafter, SIRTF was named as NASA's highest
priority ""flagship"" scientific mission by the interdisciplinary
Space Sciences Advisory Committee, in addition to the blessing
from the National Academy of Sciences.
While the spacecraft and its instruments required descoping
to keep the project alive, SIRTF's major scientific contribution
always promised to come about from its advanced infrared detector
arrays, which will allow images to be developed ""tens of
thousands of times faster"" than before, according to Evans.
""Up until a couple of years ago,"" Werner said, ""all infrared
astronomy was done with single detectors -- or very small arrays
of individually assembled detectors. Since then, the Department
of Defense has developed a program to produce arrays of tens or
hundreds of thousands of detectors, rather than just a few, and
those are very well suited for use on SIRTF.""
Werner noted that in addition to dealing with budget
pressures, Congress is currently watching NASA projects with an
eye out for any ""technological spinoff.""
""On that question, I think we have some things to say,"" he
said, ""because the detectors we're using are straight off various
military developments. Also, SIRTF will be built by the U.S.
aerospace industry, and it's a real technological and engineering
challenge in addition to being a tremendous scientific project.
""SIRTF will be used by the entire astronomical community,""
Werner added, but the revised three-year mission ""puts a premium
on observing time. We have to educate the user community and
develop a program that involves early surveys and quick
turnaround of the data.""
Werner said the downsizing of the project required a
reduction in scope and complexity of SIRTF's three instruments --
the infrared spectrograph, infrared array camera and multiband
imaging photometer. However, these reductions will only result in
losses of efficiency rather than capability, he said.
The project hopes to start a ""Phase B"" activity in 1995,
which will provide a detailed concept for development and design.
Building the hardware would begin about two years later.
Projected cost estimates, Evans said, are $850 million-$950
million.
""I am very optimistic about SIRTF,"" he said. ""It will
provide a tremendous return for the investment.""
Werner added that an additional benefit from the project
will be the ""enrichment of our intellectual and cultural
environment. People on the street are very interested in
astronomy ... black holes, the possibility of life on other
planets, the origin of the universe ... and those are the kind of
questions SIRTF will help answer.""
###
___ _____ ___
/_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov
| | | | __ \ /| | | | Jet Propulsion Lab |
___| | | | |__) |/ | | |__ M/S 525-3684 Telos | The aweto from New Zealand
/___| | | | ___/ | |/__ /| Pasadena, CA 91109 | is part caterpillar and
|_____|/ |_|/ |_____|/ | part vegetable.
"
"From: cywang@ux1.cso.uiuc.edu (Crying Freeman)
Subject: What's a good assembly VGA programming book?
Organization: University of Illinois at Urbana
Lines: 9
Can someone give me the title of a good VGA graphics programming book?
Please respond by email. Thanks!
--Yuan
--
Che-Yuan Wang
cw21219@uxa.cso.uiuc.edu
cywang@ux1.cso.uiuc.edu
"
"From: jroberts@ux4.cso.uiuc.edu (Robertson)
Subject: ATI GUP and Graphics Wkshop/Win
Organization: University of Illinois at Urbana
Lines: 11
I have an ATI Graph. Ultra Pro VLB w/2 megs, and have a small question
about Graphics Workshop for Windows. When I exit from it it says my
current driver can handle on 32768 colors when I am actually in
1024x768x65000 color mode. Is this a driver problem, a GWS error, or
what? I am using the 1.5(59) driver under Win 3.1. It correctly
states that I can display 16M colors when I switch to 800x600x24bit,
though.
Another question- Anybody know of any Viewers that support this card
other than Windows viewers?
Any help would be appreciated.
"
"From: nsmca@aurora.alaska.edu
Subject: Re: Why not give $1 billion to first year-long moon residents?
Article-I.D.: aurora.1993Apr19.130922.1
Organization: University of Alaska Fairbanks
Lines: 28
Nntp-Posting-Host: acad3.alaska.edu
In article <1993Apr19.144427.17399@aio.jsc.nasa.gov>, kjenks@gothamcity.jsc.nasa.gov writes:
> Gene Wright (gene@theporch.raider.net) wrote:
> : Announce that a reward of $1 billion would go to the first corporation
> : who successfully keeps at least 1 person alive on the moon for a year.
> : Then you'd see some of the inexpensive but not popular technologies begin
> : to be developed. THere'd be a different kind of space race then!
>
> I'm an advocate of this idea for funding Space Station work, and I
> throw around the $1 billion figure for that ""reward."" I suggest that
> you increase the Lunar reward to about $3 billion.
>
> This would encourage private industry to invest in space, which
> should be one of NASA's primary goals.
>
> -- Ken Jenks, NASA/JSC/GM2, Space Shuttle Program Office
> kjenks@gothamcity.jsc.nasa.gov (713) 483-4368
>
> ""Better. Faster. Cheaper."" -- Daniel S. Goldin, NASA Administrator
Also would maybe get the Russians Involved. After all they do have the resources
to do it in part.. But they need the capital and the goal..
I wonder if renting the russians resources would be a disqualification?
==
Michael Adams, nsmca@acad3.alaska.edu -- I'm not high, just jacked
"
"From: games@max.u.washington.edu
Subject: SSTO Senatorial (aide) breifing recollections.
Article-I.D.: max.1993Apr6.125512.1
Distribution: world
Lines: 78
NNTP-Posting-Host: max.u.washington.edu
The following are my thoughts on a meeting that I, Hugh Kelso, and Bob Lilly
had with an aide of Sen. Patty Murrays. We were there to discuss SSTO, and
commercial space. This is how it went...
After receiving a packet containing a presentation on the benifits of SSTO,
I called and tried to schedule a meeting with our local Senator (D) Patty
Murray, Washington State. I started asking for an hour, and when I heard
the gasp on the end of the phone, I quickly backed off to 1/2 an hour.
Later in that conversation, I learned that a standard appointment is 15 minutes.
We got the standard bozo treatment. That is, we were called back by an aide,
who scheduled a meeting with us, in order to determine that we were not
bozos, and to familiarize himself with the material, and to screen it, to
make sure that it was appropriate to take the senators time with that material.
Well, I got allocated 1/2 hour with Sen. Murrays aide, and we ended up talking
to him for 45 minutes, with us ending the meeting, and him still listening.
We covered a lot of ground, and only a little tiny bit was DCX specific.
Most of it was a single stage reusable vehicle primer. There was another
woman there who took copius quantities of notes on EVERY topic that
we brought up.
But, with Murray being new, we wanted to entrench ourselves as non-corporate
aligned (I.E. not speaking for boeing) local citizens interentested in space.
So, we spent a lot of time covering the benifits of lower cost access to
LEO. Solar power satellites are a big focus here, so we hit them as becoming
feasible with lower cost access, and we hit the environmental stand on that.
We hit the tourism angle, and I left a copy of the patric Collins Tourism
paper, with side notes being that everyone who goes into space, and sees the
atmosphere becomes more of an environmentalist, esp. after SEEING the smog
over L.A. We hit on the benifits of studying bone decalcification (which is
more pronounced in space, and said that that had POTENTIAL to lead to
understanding of, and MAYBE a cure for osteoporosis. We hit the education
whereby kids get enthused by space, but as they get older and find out that
they havent a hop in hell of actually getting there, they go on to other
fields, with low cost to orbit, the chances they might get there someday
would provide greater incentive to hit the harder classes needed.
We hit a little of the get nasa out of the operational launch vehicle business
angle. We hit the lower cost of satellite launches, gps navigation, personal
communicators, tellecommunications, new services, etc... Jobs provided
in those sectors.
Jobs provided building the thing, balance of trade improvement, etc..
We mentioned that skypix would benifit from lower launch costs.
We left the paper on what technologies needed to be invested in in order
to make this even easier to do. And he asked questions on this point.
We ended by telling her that we wanted her to be aware that efforts are
proceeding in this area, and that we want to make sure that the
results from these efforts are not lost (much like condor, or majellan),
and most importantly, we asked that she help fund further efforts along
the lines of lowering the cost to LEO.
In the middle we also gave a little speal about the Lunar Resource Data
Purchase act, and the guy filed it separately, he was VERY interested in it.
He asked some questions about it, and seemed like he wanted to jump on it,
and contact some of the people involved with it, so something may actually
happen immediatly there.
The last two things we did were to make sure that they knew that we
knew a lot of people in the space arena here in town, and that they
could feel free to call us any time with questions, and if we didn't know
the answers, that we would see to it that they questions got to people who
really did know the answers.
Then finally, we asked for an appointment with the senator herself. He
said that we would get on the list, and he also said that knowing her, this
would be something that she would be very interested in, although they
do have a time problem getting her scheduled, since she is only in the
state 1 week out of 6 these days.
All in all we felt like we did a pretty good job.
John.
"
"From: teckjoo@iti.gov.sg (Chua Teck Joo)
Subject: Visuallib (3D graphics for Windows)
Organization: Information Technology Institute, National Computer Board, Singapore.
Lines: 17
I am currently looking for a 3D graphics library that runs on MS
Windows 3.1. Are there any such libraries out there other than
Visuallib? (It must run on VGA and should not require any other
add-on graphics cards).
For Visuallib, will it run with Metaware High C compiler v3.0? Any
email contact for the author of Visuallib?
Any help would be much appreciated. Thanks.
--
* Chua, Teck Joo | Information Technology Institute *
* Email: teckjoo@iti.gov.sg | 71 Science Park Drive *
* Phone: (65) 772-0237 | Singapore (0511) *
* Fax: (65) 779-1827 | *
"
"From: crash@ckctpa.UUCP (Frank ""Crash"" Edwards)
Subject: Re: forms for curses
Reply-To: crash%ckctpa@myrddin.sybus.com (Frank ""Crash"" Edwards)
Organization: Edwards & Edwards Consulting
Lines: 40
Note the Followup-To: header ...
steelem@rintintin.Colorado.EDU (STEELE MARK A) writes:
>Is there a collection of forms routines that can be used with curses?
>If so where is it located?
On my SVR4 Amiga Unix box, I've got -lform, -lmenu, and -lpanel for
use with the curses library. Guess what they provide? :-)
Unix Press, ie. Prentice-Hall, has a programmer's guide for these
tools, referred to as the FMLI (Forms Mgmt Language Interface) and
ETI (Extended Terminal Interface), now in it's 2nd edition. It is
ISBN 0-13-020637-7.
Paraphrased from the outside back cover:
FMLI is a high-level programming tool for creating menus, forms,
and text frames. ETI is a set of screen management library
subroutines that promote fast development of application programs
for window, panel, menu, and form manipulation.
The FMLI is a shell package which reads ascii text files and produces
screen displays for data entry and presentation. It consists of a
""shell-like"" environment of the ""fmli"" program and it's database
files. It is section 1F in the Unix Press manual.
The ETI are subroutines, part of the 3X manual section, provide
support for a multi-window capability on an ordinary ascii terminal
with controls built on top of the curses library.
>Thanks
>-Mark Steele
>steelem@rintintin.colorado.edu
--
Frank ""Crash"" Edwards Edwards & Edwards Consulting
Voice: 813/786-3675 crash%ckctpa@myrddin.sybus.com, but please
Data: 813/787-3675 don't ask UUNET to route it -- it's sloooow.
There will be times in life when everyone you meet smiles and pats you on
the back and tells you how great you are ... so hold on to your wallet.
"
"From: sigma@rahul.net (Kevin Martin)
Subject: Re: CView answers
Keywords: Stupid Programming
Nntp-Posting-Host: bolero
Organization: a2i network
Lines: 26
In <C5LEvt.1nJ@rahul.net> bryanw@rahul.net (Bryan Woodworth) writes:
>In <1qlobb$p5a@tuegate.tue.nl> renew@blade.stack.urc.tue.nl (Rene Walter) writes:
>[Most info regarding dangers of reading from Floppy disks omitted]
>>unrevcoverable way. SO BE CAREFUL! It is incredibly poor programming for a
>>program to do this...
>Nevertheless, it is an important bug that needs to be squashed. I am
>merely pointing out that it was probably overlooked. While it is serious,
>one must keep in mind that it will probably affect at most 5% of the
>targeted users of CView.
OK, I don't use CView anymore, but I saw that no one had explaind this
""bug"" in the thread, so here goes:
It is NOT the fault of CView. It is DOS! If you leave a file open on a
floppy drive, then change the disk and do something which updates or closes
that file, you have a good chance of getting part of the directory and FAT
from the other disk written to the new disk. This has always been true,
and has destroyed data under other programs, not just CView.
The only thing CView can do to improve the situation is to try not to leave
files open unless it's actively using them (ie, reading and decoding).
--
Kevin Martin
sigma@rahul.net
""I gotta get me another hat.""
"
"From: kjenks@gothamcity.jsc.nasa.gov
Subject: Re: space food sticks
Article-I.D.: aio.1993Apr6.134526.14966
Organization: NASA/JSC/GM2, Space Shuttle Program Office
Lines: 17
X-Newsreader: TIN [version 1.1 PL8]
John Elson (jelson@rcnext.cso.uiuc.edu) wrote:
: Has anyone ever heard of a food product called ""Space Food Sticks?""
I remember those awful things. They were dry and crumbly, and I
recall asking my third-grade teacher, Miss G'Francisco, how they
kept the crumbs from floating around in zero-G. She had no clue.
I have not seen anything like them in today's space program.
Some Apollo technology is best forgotten.
-- Ken Jenks, NASA/JSC/GM2, Space Shuttle Program Office
kjenks@gothamcity.jsc.nasa.gov (713) 483-4368
""HERE MEN FROM THE PLANET EARTH
FIRST SET FOOT UPON THE MOON
JULY 1969, A.D.
WE CAME IN PEACE FOR ALL MANKIND.""
"
"From: se92psh@brunel.ac.uk (Peter Hauke)
Subject: Re: TIFF: philosophical significance of 42
Organization: Brunel University, Uxbridge, UK
X-Newsreader: TIN [version 1.1 PL8]
Lines: 20
joachim lous (joachim@kih.no) wrote:
: ulrich@galki.toppoint.de wrote:
: > Does anyone have any other suggestions where the 42 came from?
Yep, here's a theory that I once heard bandied around. Rather than thinking
of the number think of the sound. For Tea Two. A sort of anagram on Tea For Two,
Two for Tea, For Tea Two.
:-)
Peter
--
***********************************
* Peter Hauke @ Brunel University *
*---------------------------------*
* se92psh@brunel.ac.uk *
***********************************
"
"From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Re: Newsgroup Split
Organization: University of Southern California, Los Angeles, CA
Lines: 18
Distribution: world
NNTP-Posting-Host: caspian.usc.edu
In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
|> Concerning the proposed newsgroup split, I personally am not in favor of
|> doing this. I learn an awful lot about all aspects of graphics by reading
|> this group, from code to hardware to algorithms. I just think making 5
|> different groups out of this is a wate, and will only result in a few posts
|> a week per group. I kind of like the convenience of having one big forum
|> for discussing all aspects of graphics. Anyone else feel this way?
|> Just curious.
|>
|>
|> Daemon
|>
I agree with you. Of cause I'll try to be a daemon :-)
Yeh
USC
"
"From: rap@coconut.cis.ufl.edu (Ryan Porter)
Subject: Re: DMORPH
Article-I.D.: snoopy.1pqlhnINN8k1
Organization: Univ. of Florida CIS Dept.
Lines: 34
NNTP-Posting-Host: coconut.cis.ufl.edu
In article <1993Apr3.183303.6442@usl.edu> jna8182@ucs.usl.edu (Armstrong Jay N) writes:
>Can someone please tell me where I can ftp DTA or DMORPH?
DMorf (Dave's Morph, I think is what it means) and DTax (Dave's
TGA Assembler) are available in the MSDOS_UPLOADS directory
on the wuarchive.
They are arjed and bundled with their respective xmemory versions,
dmorfx.exe and dtax.exe, you can also find a version of aaplay.exe
there, with which you can view files you create with dta.exe or
dtax.exe.
I downloaded the whole bunch last week and have been morphing
away the afternoons since. The programmes are all a bit buggy and
definitely not-ready-to-spread-to-the-masses, but they are very
well written.
The interface is frustrating at first, but it gets easy once you
figure out the tricks.
I have noticed that dmorfx will crash horribly if you try to morph
without using the splines option. Not sure why, since I don't have
the source. I think it was written for TP 6.0.
If anyone else comes up with any other hints on getting the thing
to work right, tell me; it took me several hours the first time
just to figure out that if I just used the durned splines then
it would work...
>JNA
>jna8182@usl.edu
-Ryan
rap@cis.ufl.edu
"
"From: lipman@oasys.dt.navy.mil (Robert Lipman)
Subject: Call for presentations: Navy SciViz/VR seminar
Reply-To: lipman@oasys.dt.navy.mil (Robert Lipman)
Organization: Carderock Division, NSWC, Bethesda, MD
Lines: 74
**********************************************************************
2ND CALL FOR PRESENTATIONS
NAVY SCIENTIFIC VISUALIZATION AND VIRTUAL REALITY SEMINAR
Tuesday, June 22, 1993
Carderock Division, Naval Surface Warfare Center
(formerly the David Taylor Research Center)
Bethesda, Maryland
**********************************************************************
SPONSOR: NESS (Navy Engineering Software System) is sponsoring a
one-day Navy Scientific Visualization and Virtual Reality Seminar.
The purpose of the seminar is to present and exchange information for
Navy-related scientific visualization and virtual reality programs,
research, developments, and applications.
PRESENTATIONS: Presentations are solicited on all aspects of
Navy-related scientific visualization and virtual reality. All
current work, works-in-progress, and proposed work by Navy
organizations will be considered. Four types of presentations are
available.
1. Regular presentation: 20-30 minutes in length
2. Short presentation: 10 minutes in length
3. Video presentation: a stand-alone videotape (author need not
attend the seminar)
4. Scientific visualization or virtual reality demonstration (BYOH)
Accepted presentations will not be published in any proceedings,
however, viewgraphs and other materials will be reproduced for
seminar attendees.
ABSTRACTS: Authors should submit a one page abstract and/or videotape to:
Robert Lipman
Naval Surface Warfare Center, Carderock Division
Code 2042
Bethesda, Maryland 20084-5000
VOICE (301) 227-3618; FAX (301) 227-5753
E-MAIL lipman@oasys.dt.navy.mil
Authors should include the type of presentation, their affiliations,
addresses, telephone and FAX numbers, and addresses. Multi-author
papers should designate one point of contact.
**********************************************************************
DEADLINES: The abstact submission deadline is April 30, 1993.
Notification of acceptance will be sent by May 14, 1993.
Materials for reproduction must be received by June 1, 1993.
**********************************************************************
For further information, contact Robert Lipman at the above address.
**********************************************************************
PLEASE DISTRIBUTE AS WIDELY AS POSSIBLE, THANKS.
**********************************************************************
Robert Lipman | Internet: lipman@oasys.dt.navy.mil
David Taylor Model Basin - CDNSWC | or: lip@ocean.dt.navy.mil
Computational Signatures and | Voicenet: (301) 227-3618
Structures Group, Code 2042 | Factsnet: (301) 227-5753
Bethesda, Maryland 20084-5000 | Phishnet: stockings@long.legs
The sixth sick shiek's sixth sheep's sick.
"
"From: jkatz@access.digex.com (Jordan Katz)
Subject: U.S. Space Foundation Speech
Organization: Express Access Online Communications, Greenbelt, MD USA
Lines: 94
Distribution: usa
NNTP-Posting-Host: access.digex.net
Speech by Pete Worden
Delivered Before the U.S. Space Foundation Conference
Colorado Springs, Colorado
April 15, 1993
What a delightful opportunity to cause some trouble. For
providing me this forum I would sincerely like to thank the U.S.
Space Foundation. My topic today is the Single Stage Rocket
Technology rocket or SSRT. By I intend to speak of more. How to
lower the cost and make rapid progress. SSRT is to my mind --
and I hope to convince you -- the erupting a new rallying cry for
our generation in space -- Faster, Cheaper, and Better.
Faster, Cheaper, Better and SSRT represent the passing of a
torch from one technical generation to another. It is a new
thing to be sure -- but it is also a relearning of old things
from past masters.
When we rolled out the SSRT baby two weeks ago, so called
experts told us it violates the laws of physics -- it made no
sense. For example, Dr. Eberhart Rachtin - former president of
the Aerospace Corp., said of SSRT in the L.A. Times that it,
""defies the best principles of launching payloads into space.""
Well Dr. Rachtin -- you've made us mad! What are these
principles that SSRT defies?
Well I'll tell you. It violates the principle that you need
a giant program office to build space hardware. It violates the
""fact"" that it takes 20 years to build something new. And it
violates the truism that you cant do anything significant for
less than many billions of dollars.
It took some of the last generation's experts to teach us
some new/old lessons. Werhner Von Braun's first rocket was not a
Saturn V. General Schriever's ICBM's didn't take ten years to
demonstrate. And the X-1 airplane didn't cost $1 billion.
It took one of the great engineers of the 1950's to remind
us of these truths -- Max Hunter. Max, to remind you, was a
senior engineer in the Thor IRBM program, and old faster, better,
cheaper success story. Max has been persistent in a vision of a
single stage reusable space launch system since the 1960's.
Because he knew it had to be done in affordable steps - Build a
little, Test a little.
Next he persuaded us to do a technology demonstration. We
didn't solicit a bunch of requirements -- they'd just change
every few years anyway. [ not included in the speech -- The
ALS/NLS has such ephemeral requirements that it would better
known as ""Shape Shifter"" than ""Space Lifter."" We didn't spend a
lot money -- this X-Rocket only cost $60 million. When's the
last time we even built a new airplane for that? And it didn't
take a lot of time to build -- McDonnell Douglas completed it in
18 months. Finally, the government program office consisted of
one very over-worked Air Force Major -- motivated in part by the
threat that he'd get to ride on it in a strapped-on lawn chair if
it ran over cost or schedule.
As I described what SSRT is -- and isn't keep in mind its
only a first step. There are several more steps -- and steps
that can easily fail -- before the U.S. can field an SSTO. But
each step should follow the same principles -- a small management
team -- a few years technology demonstration -- and a modest
budget.
Let me show a few details on SSRT and how it might evolve:
(See charts)
I'm embarrassed when my generation is compared with the last
generation -- the giants of the last great space era, the 1950's
and 1960's. They went to the moon - we built a telescope that
can't see straight. They soft-landed on Mars - the least we
could do is soft-land on Earth!
But we do have an answer. We can follow their build a
little, test a little philosophy to produce a truly affordable
and routine access to space. I know there are nay sayers among
you -- those who say SSRT is a stunt. It needs more thermal
protection, the engines are wrong, it would be better to land
horizontally, etc, etc.
I say to you -- we'll see you at White Sands in June. You
bring your view-graphs, and I'll bring my rocketship. If we do
what we say we can do, then you let us do the next step. [ not
included in the speech: If we fail -- you still have your
program offices, staff summary sheets, requirement analyses, and
decade long programs.]
I bet on my generation and Max Hunter's idea -- Any Takers?
"
"From: edimg@willard.atl.ga.us (Ed pimentel)
Subject: HELP! Need JPEG / MPEG encod-decode
Organization: Willard's House BBS, Atlanta, GA -- +1 (404) 664 8814
Lines: 41
I am involve in a Distant Learning project and am in need
of Jpeg and Mpeg encode/decode source and object code.
This is a NOT-FOR PROFIT project that once completed I
hope to release to other educational and institutional
learning centers.
This project requires that TRUE photographic images be sent
over plain telephone lines. In addition if there is a REAL Good
GUI lib with 3D objects and all types of menu classes that can
be use at both end of the transaction (Server and Terminal End)
I would like to hear about it.
We recently posted an RFD announcing the OTG (Open Telematic Group)
that will concern itself with the developement of such application
and that it would incorporate NAPLPS, JPEG, MPEG, Voice, IVR, FAX
Sprites, Animation(fli, flc, etc...).
At present only DOS and UNIX environment is being worked on and it
our hope that we can generate enough interest where all the major
platform can be accomodated via a plaform independent API/TOOLKIT/SDK
We are of the mind that it is about time that such project and group
be form to deal with these issues.
We want to setup a repository where these files may be access such as
Simte20 and start putting together a OTG FAQ.
If you have some or any information that in your opinion would be
of interest to the OTG community and you like to see included in our
first FAQ please send it email to the address below.
Thanks in Advance
Ed
P.O. box 95901
Atlanta Ga. 30347-0901
(404)985-1198 zyxel 14.4
epimntl@world.std.com
ed.pimentel@gisatl.fidonet.org
--
edimg@willard.atl.ga.us (Ed pimentel)
gatech!kd4nc!vdbsan!willard!edimg
emory!uumind!willard!edimg
Willard's House BBS, Atlanta, GA -- +1 (404) 664 8814
"
"From: ldaddari@polaris.cv.nrao.edu (Larry D'Addario)
Subject: Re: Russian Email Contacts.
In-Reply-To: nsmca@aurora.alaska.edu's message of Sat, 17 Apr 1993 12: 52:09 GMT
Organization: National Radio Astronomy Observatory
Lines: 32
It is usually possible to reach people at IKI (Institute for Space
Research) in Moscow by writing to
IKIMAIL@esoc1.bitnet
This is a machine at ESA in Darmstadt, Germany; IKI has a dedicated
phone line to this machine and someone there logs in regularly to
retrieve mail.
In addition, there are several user accounts belonging to Russian
scientific institutions on
<user>@sovam.com
which is a commercial enterprise based in San Francisco that provides
email services to the former USSR. For example, fian@sovam.com is the
""PHysics Institute of the Academy of Sciences"" (initials transliterated
from Russian, of course). These connections cost the Russians real
dollars, even for *received* messages, so please don't send anything
voluminous or frivilous.
=====================================================================
Larry R. D'Addario
National Radio Astronomy Observatory
Addresses (INTERNET) LDADDARI@NRAO.EDU
(FAX) +1/804/296-0324 Charlottesville
+1/304/456-2200 Green Bank
(MAIL) 2015 Ivy Road, Charlottesville, VA 22903, USA
(PHONE) +1/804/296-0245 office, 804/973-4983 home CHO
+1/304/456-2226 off., -2106 lab, -2256 apt. GB
=====================================================================
"
"From: jbatka@desire.wright.edu
Subject: Re: Gamma Ray Bursters. WHere are they.
Organization: Wright State University
Lines: 16
I assume that can only be guessed at by the assumed energy of the
event and the 1/r^2 law. So, if the 1/r^2 law is incorrect (assume
some unknown material [dark matter??] inhibits Gamma Ray propagation),
could it be possible that we are actually seeing much less energetic
events happening much closer to us? The even distribution could
be caused by the characteristic propagation distance of gamma rays
being shorter then 1/2 the thickness of the disk of the galaxy.
Just some idle babbling,
--
Jim Batka | Work Email: BATKAJ@CCMAIL.DAYTON.SAIC.COM | Elvis is
| Home Email: JBATKA@DESIRE.WRIGHT.EDU | DEAD!
64 years is 33,661,440 minutes ...
and a minute is a LONG time! - Beatles: _ Yellow Submarine_
"
"From: prb@access.digex.com (Pat)
Subject: Re: End of the Space Age?
Organization: Express Access Online Communications USA
Lines: 30
Distribution: world
NNTP-Posting-Host: access.digex.net
Oddly, enough, The smithsonian calls the lindbergh years
the golden age of flight. I would call it the granite years,
reflecting the primitive nature of it. It was romantic,
swashbuckling daredevils, ""those daring young men in their flying
machines"". But in reality, it sucked. Death was a highly likely
occurence, and the environment blew. Ever see the early navy
pressure suits, they were modified diving suits. You were ready to
star in ""plan 9 from outer space"". Radios and Nav AIds were
a joke, and engines ran on castor oil. They picked and called aviators
""men with iron stomachs"", and it wasn't due to vertigo.
Oddly enough, now we are in the golden age of flight. I can hop the
shuttle to NY for $90 bucks, now that's golden.
Mercury gemini, and apollo were romantic, but let's be honest.
Peeing in bags, having plastic bags glued to your butt everytime
you needed a bowel movement. Living for days inside a VW Bug.
Romantic, but not commercial. The DC-X points out a most likely
new golden age. An age where fat cigar smoking business men in
loud polyester space suits will fill the skys with strip malls
and used space ship lots.
hhhmmmmm, maybe i'll retract that golden age bit. Maybe it was
better in the old days. Of course, then we'll have wally schirra
telling his great grand children, ""In my day, we walked on the moon.
Every day. Miles. no buses. you kids got it soft"".
pat
"
"From: renes@ecpdsharmony.cern.ch (Rene S. Dutch student)
Subject: InterViews graphics package
Organization: CERN European Lab for Particle Physics
Lines: 7
Hello,
I'm trying out the C++ graphics package InterViews. Besides the man pages
on the classes, I haven't got any documentation. Is there anything else
around? Furthermore, can anyone send me a (small!) example program
which shows how to use these classes together ? I would be very gratefull...
"
"From: andrey@cco.caltech.edu (Andre T. Yew)
Subject: Re: 16 million vs 65 thousand colors
Organization: California Institute of Technology, Pasadena
Lines: 28
NNTP-Posting-Host: punisher.caltech.edu
d9hh@dtek.chalmers.se (Henrik Harmsen) writes:
>1-4 bits per R/G/B gives horrible machbanding visible in almost any picture.
>5 bits per R/G/B (32768, 65000 colors) gives visible machbanding
>color-gradient picture has _almost_ no machbanding. This color-resolution is
>see some small machbanding on the smooth color-gradient picture, but all in all,
>There _ARE_ situiations where you get visible mach-banding even in
>a 24 bit card. If
>you create a very smooth color gradient of dark-green-white-yellow
>or something and turn
>up the contrast on the monitor, you will probably see some mach-banding.
While I don't mean to damn Henrik's attempt to be helpful here,
he's using a common misconception that should be corrected.
Mach banding will occur for any image. It is not the color
quantization you see when you don't have enough bits. It is the
human eye's response to transitions or edges between intensities.
The result is that colors near the transistion look brighter on
the brighter side and darker on the darker side.
--Andre
--
Andre Yew andrey@cco.caltech.edu (131.215.139.2)
"
"From: schmidt@PrakInf.TH-Ilmenau.DE (Schmidt)
Subject: irit to pov ?
Keywords: raytracer, format conversion
Reply-To: schmidt@PrakInf.TH-Ilmenau.DE (Schmidt)
Organization: Technische Hochschule Ilmenau
Lines: 8
Nntp-Posting-Host: merkur.prakinf.tu-ilmenau.de
Has anybody made a converter from irit's .irt or .dat format to
.pov format ?
Thanks!
--
Sebastian Schmidt
TU Ilmenau Institut f. praktische Informatik
"
"From: ""james kewageshig"" <james.kewageshig@canrem.com>
Subject: articles on flocking?
Reply-To: ""james kewageshig"" <james.kewageshig@canrem.com>
Organization: Canada Remote Systems
Distribution: comp
Lines: 17
HI All,
Can someone point me towards some articles on 'boids' or
flocking algorithms... ?
Also, articles on particle animation formulas would be nice...
________________________________________________________________________
|0 ___ ___ ____ ____ ____ 0|\
| \ \// || || || James Kewageshig |\|
| _\//_ _||_ _||_ _||_ UUCP: james.kewageshig@canrem.com |\|
| N E T W O R K V I I I FIDONET: James Kewageshig - 1:229/15 |\|
|0______________________________________________________________________0|\|
\________________________________________________________________________\|
---
þ DeLuxeý 1.25 #8086 þ Head of Co*& XV$# Hi This is a signature virus. Co
--
Canada Remote Systems - Toronto, Ontario
416-629-7000/629-7044
"
"From: ad994@Freenet.carleton.ca (Jason Wiggle)
Subject: PCX
Organization: National Capital Freenet, Ottawa, Canada
Lines: 27
Hello
HELP!!! please
I am a student of turbo c++ and graphics programming
and I am having some problems finding algorithms and code
to teach me how to do some stuff..
1) Where is there a book or code that will teach me how
to read and write pcx,dbf,and gif files?
2) How do I access the extra ram on my paradise video board
so I can do paging in the higher vga modes ie: 320x200x256
800x600x256
3) anybody got a line on a good book to help answer these question?
Thanks very much !
send reply's to : Palm@snycanva.bitnet
Peace be
Blessed be
Stephen Palm
"
"From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Re: Fast wireframe graphics
Organization: University of Southern California, Los Angeles, CA
Lines: 14
Distribution: usa
NNTP-Posting-Host: caspian.usc.edu
In article <C5tK4u.C6t@cs.columbia.edu>, ykim@cs.columbia.edu (Yong Su Kim) writes:
|>
|> I am working on a program to display 3d wireframe models with the user
|> being able to arbitrarily change any of the viewing parameters. Also,
|> the wireframe objects are also going to have dynamic attributes so
|> that they can move around while the user is ""exploring"" the wireframe
|> world.
Why don't you consider PHIGS in X or PEX lib?
Yeh
USC
"
"From: markus@octavia.anu.edu.au (Markus Buchhorn)
Subject: HDF readers/viewers
Organization: Australian National University, Canberra
Lines: 33
Distribution: world
NNTP-Posting-Host: 150.203.5.35
Originator: markus@octavia
G'day all,
Can anybody point me at a utility which will read/convert/crop/whatnot/
display HDF image files ? I've had a look at the HDF stuff under NCSA
and it must take an award for odd directory structure, strange storage
approaches and minimalist documentation :-)
Part of the problem is that I want to look at large (5MB+) HDF files and
crop out a section. Ideally I would like a hdftoppm type of utility, from
which I can then use the PBMplus stuff quite merrily. I can convert the cropped
part into another format for viewing/animation.
Otherwise, can someone please explain how to set up the NCSA Visualisation S/W
for HDF (3.2.r5 or 3.3beta) and do the above cropping/etc. This is for
Suns with SunOS 4.1.2.
Any help GREATLY appreciated. Ta muchly !
Cheers,
Markus
--
Markus Buchhorn, Parallel Computing Research Facility
email = markus@octavia.anu.edu.au
Australian National University, Canberra, 0200 , Australia.
[International = +61 6, Australia = 06] [Phone = 2492930, Fax = 2490747]
--
Markus Buchhorn, Parallel Computing Research Facility
email = markus@octavia.anu.edu.au
Australian National University, Canberra, 0200 , Australia.
[International = +61 6, Australia = 06] [Phone = 2492930, Fax = 2490747]
"
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