waashk/20ng huggingface dataset:
In <C5q0HK.KoD@hawnews.watson.ibm.com> ricky@watson.ibm.com (Rick Turner) writes:  >Look in the /pub/SPACE directory on ames.arc.nasa.gov - there are a number >of earth images there. You may have to hunt around the subdirectories as >things tend to be filed under the mission (ie, "APOLLO") rather than under	 >the image subject.	 > For those of you who don't need 24 bit, I got a 32 colour Amiga IFF of a cloudless Earth (scanned). Looks okay when mapped on a sphere. E-mail me and I'll send it you...  Louis
gnuplot, etc. make it easy to plot real valued functions of 2 variables but I want to plot functions whose values are 2-vectors. I have been  doing this by plotting arrays of arrows (complete with arrowheads) but before going further, I thought I would ask whether someone has already done the work. Any pointers??  thanx in advance
I have not seen articles in comp.graphics.research for a long time. Does it/he work anymore?  I have seen many conference related postings in comp.graphics, and it is hard to believe that people have not tried to post them to c.g.research.  If somebody has not got his article to comp.graphics.research, then write to me or post here.
Does anyone know of a site where I could ftp some RenderMan shaders? Or of a newsgroup which has discussion or information about RenderMan?  I'm new to the RenderMan (Mac) family, and I'd like to get as much info I can lay my hands on.  Thanks!          Andy Bates.   --------------------------------------------------------------------------- Andy Bates.
Hi to all out there.  We have this problem, and I'm not certain I'm solving it in the correct way.  I was wondering if anyone can shed light on this, or point me in the right place to look...  We have an X-ray imaging camera and a metallic tube with a cylindrical hole passing through it at a right angle to the tube's axis:                                                            |                                      ||                   [ image                                                           |   X-ray source ]                     ||                   | screen                             metallic || tube              |                                      ||                   |                                                           |  We know source--screen centre distance, radius of the tube, radius of the hole.  We do some calculations based on the image of the hole on the screen.  However, the calculations are mathematically highly complex, and must assume that the object's hole projects an image (resembling an ellipse if the tube is not parallel to the screen) in the centre of the screen.  However, it is unlikely that the object is placed so conveniently.    Firstly, we must transform the major and minor axis of the ellipse.  I cannot know what the angle between the tube and screen is.  Do I have to assume that they are parallel to do the transformation?  How do I do this transformation?  Secondly, there is a distortion of the image due to the screen being planar (the source--screen distance increases as we move away from the centre of the screen).  How can I compensate the ellipse's axis for this image distortion?  So, please can anyone give us a few pointers here?  How do we transform the image so it appears as it would if it were in the centre of the screen, and how do I deal with distortion due to the shape of the screen?  We'd appreciate any help, either posted or emailed.  Thanks in advance, Simon.
============================================================================== Please bear with me as i am new at this game, i apologize unreservedly if i hav e posted another message earlier by mistake. but i digress, could anyone out th ere please explain exactly what DMORF does (dtax.exe). Does it simply fade one bitmap into another or does it reshape one bitmap into another. Excuse my ignor ance.....
gchen@essex.ecn.uoknor.edu writes in article <C55DoH.2AI@constellation.ecn.uoknor.edu>: >  > Greetings! >  > Does anybody know if it is possible to set VGA graphics mode to 640x400 > instead of 640x480?  Any info is appreciated!  Some VESA bios's support this mode (0x100).  And *any* VGA should be able to support this (640x480 by 256 colors) since it only requires 256,000 bytes. My 8514/a VESA TSR supports this; it's the only VESA mode by card can support due to 8514/a restrictions. (A WD/Paradise)
I'm looking for graphics (clipart, bmp, gif...) of anything relating to ophthalmology (I know it's a weird request). Anything such as eyeglasses,  contact lenses, eyes...would be greatly appreciated. Thanks.
Dear Netters:   I am looking for C source code to test if a 3D point lies within a  concave polyhadra. I have read a few articles about this and know  that two solutions exist: parity counting and angle sumation. Both   ideas are pretty simple but coding is not. So I wonder if there exists  public domain source code for this.      Another 'rough' solition (don't care special cases) is ray-casting  which is reported to be more or less independent of number of faces  consisting the polyhedra if a special space indexing is used (M. Tamminen, et. al., 1984. "Ray-casting and block model conversion using a spatial index". Computer-Aided-Designs. 4, 1984, 60-65). But the prerequirement is that all the facets of polyhedra have their normal pointing outside of polyhedra. How this could be done in practice ? I have a set of trangles consisting the polyhedra. How could I ensure their normals pointing outside the polyhedra ? The paper mentioned above assumed this is already the case.      I have also read some standard computer graphics textbook about hidden line removal. It says "if we make the rule that the normal of a facet pointing  toward viewer standing far away from the polyhedra...". Again how to make sure ?      Any pointers are welcome ?      Yaohong Jiang    Queen's University    Kingston, Ont.
Does anyone know how to decode the color information of a NTSC signal ?  I need to convert this data to RGB for a Video Capture Utility I am  writing for use with an IBM M-MOTION Video adapter card...  I need to know the how the V and U signals work in the color process.  Thanks in advance for any information or algorythms etc.
I am looking for the specs for the .mpg files that are floating around the alt.binaries.pictures.* groups on the net.  Please lemme know where I can obtain the spec or email it to me.  Thanks much.
Hi,  My name is rahul and I am doing MS at USU, Logan My query is: 	I have a HP workstation: HP Series 400 with X running on it. I have a true color - 24bit color monitor connected to this machine. Normally I have the capability to display 256 colors from a max of 16.7 million. Since the monitor is True Color I can see 16.7 million at a time.  Que: do we have a facility in X(c-function call) that will enable me to specify any RGB combination and see it on screen? I am using XStoreColor to set the pallette of a max of 256 colors. Que: If not. Is there any way I can display a true color image on a true color monitor using XLib function calls?  We are generating ray traced images and 256 colors are indeed a painful limit. besides I need the facility to display the true color images  i will be generating on a true color system WITHOUT color  quantification. Please, if anyone can help i'd be obliged
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.  I disagree.  You could learn the same amount by reading all the split groups, and it would make things easier for those of us who are less omnivorous.  There is no "waste" in creating news groups -- its just a bit of shuffling about.  I have no problem with only a few posts per week per group - I spend too much time on this as it is.
Hello, I know that this has been discussed before.  But at the time I didn't need to teselate a sphere.  So if any kind soul has the code or the alg, that was finally decided upon as the best (as I recall it was a nice, iterative subdivision meathod), I would be very  appreciative. 							Thomas DeWeese deweeset@rdrc.rpi.edu
I noticed you post in comp.graphics and know a person with your name.  I was wondering if you used to live in Paxton Mass.  If so, I have a friend that would like to say HI.   Sorry for the inconvience if this isn't who I think it is.
I need some help.  We are upgrading our animation/video editing stand. We are looking into the different type of setups for A/B roll and a cuts only station.  We would like this to be controlled by a computer ( brand doesnt matter but maybe MAC, or AMIGA).  Low end to high end system setups would be very helpful. If you have a system or use a system that might be of use, could you mail me your system requirements, what it is used for, and all the hardware and software that will be necessary to set the system up.  If you need more  info, you  can mail me at   eylerken@u.washington.edu  thanks in advance.
Does anyone know how to access and/or display multiple pages in mode 13h while still maintaining the 1 byte per pixel memory organization? Examples in C or Assembly would be appreciated... Thanks Scott
We have been using Iterated Systems compression board to compress  pathology images and are getting ratios of 40:1 to 70:1 without too much loss in quality. It is taking about 4 mins per image to compress, on a 25Mhz 486 but decompression is almost real time on a 386 in software  alone.
In article <1993Apr5.114428.2061@falcon.aamrl.wpafb.af.mil>, dsnyder@falcon.aamrl.wpafb.af.mil writes: > In article <C4vA9r.KK7@taurus.cs.nps.navy.mil>, stockel@oahu.oc.nps.navy.mil (Jim Stockel) writes: >> Hi, >>  >>     Opps!  typed in the phone numbers wrong.  Here are the correct numbers.  >  >   For a commerical package try WAVE from  Precision Visuals                                               303-530-9000  >  >   For a free package try KHOROS from University of New Mexico                                          505-277-6563
Hi there!... 		Well, i have a 386/40 with SVGA 1Mb. (OAK chip 077) and i don't 		have VESA TSR program for this card. I need it .  			Please... if anybody can help me, mail me at: 			lulagos@araucaria.cec.uchile.cl
What are the main advantages of this method?  I have seen it described, and the algiorithm seems a  little bit long.  I developed my own method, which requires that the points be in a counter-clockwise order, and returns whether you are looking at the back or the front, similar to the plane eqn method.  It uses few calculations however, basically it is several comparisons.  The only disadvantage I see is that it must be done after the transformation from view coordinates to coordinates to display on the screen, which means that a little more calculation isneeded beforehand.  My method basically figures out whether the points that will appear on the screen are clockwise or counterclockwise.  When looking at the back of something, the points occur in an opposite direction from the front, so merely by figuring out which way the points go, you can tell whether you are looking at the back or front of a 2d polygon.  Has anyone heard of this method before?  It is so simple, I doubt i am the first to think of it.  Libertarian, atheist, semi-anarchal Techno-Rat.
I am looking for software to run on my brand new Targa+ 16/32. If anyone knows of any sites which have useful stuff, or if you have any yourself you want to give, let me know via mail. Thanks a LOT! Yayayay!                                      jamie@ddsw1.mcs.com
Hi there,  I'm looking for help on hi-rez CGA modes (hey, i know it sounds crazy but at the moment it's got to do). My card's manual says it does something like 640 by 400 2 colour and 640 by 200 4 colour (the card has 64k memory). Could  anyone give me some help on how to implement these modes (Assembly language  is fine). Any other usefull tips on the CGA regs will also help.  Thanx in advance...  Frans.   My eMail is
I am applying for an NSF grant to buy equipment for a laboratory...  The lab will need to support C (or Pascal) with graphics tools...   We can run the lab either on PC's or  DEC equipment ---     If you are familiar with appropriate products (software/hardware) and precise prices. Please contact   shai@lcc.stonehill.edu   We are interested in any available acadmic discounts....   Also, if anyone runs a lab using similar software/hardware, I would be very interested in hearing your opinions of its success  Thanks
I believe many people will be happy to have this information.   So,  please post it to the comp.graphics.
Hi,  Can anybody suggest robust algorithms/code for computing the point of intersection on n, 2-d lines in a plane. The data has outliers and hence a simple least squares technique does not seem to provide satifactory results.  Please respond by e-mail and I will post the summary to the newsgroups if there is sufficient interest.  Thanks,  Raj Talluri Member Technical Staff Image Understanding Branch Texas Instruments Central Research Labs Dallas, Texas 75248
In article <1993Apr14.191415.10553@samba.oit.unc.edu> cptully@med.unc.edu   (Christopher P. Tully,Pathology,62699) writes: > Why so up tight?  FOr that matter, TIFF6 is out now, so why not gripe > about its problems?  Also, if its so important to you, volunteer to > help define or critique the spec.  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, which I think hurts your acceptance by anything that will need to read those images (e.g., paint programs).  In a nutshell, I don't think TIFF is salvageable unless the fat is trimmed significantly- and then it wouldn't be TIFF anymore.  They keep trying to cut it back, but it's late now.  Maybe they >will< fix it, and change that magic number to signify the lack of compatibility.  That would probably make me happy.
renew@blade.stack.urc.tue.nl (Rene Walter) writes: >over where it places its temp files: it just places them in its >"current directory".  I have to beg to differ on this point, as the batch file I use to launch cview cd's to the dir where cview resides and then invokes it.  every time I crash cview, the 0-byte temp file is found in the root dir of the drive cview is on.  just my $0.13, cb
Hi Steve,  As the author of Multiverse, I feel I had better respond to your mailnote questioning whether anyone had managed to compile this software - the quick answer is yes! The long answer is yes - but a few have had a few problems with their platforms - not all unix's are the same, you know! As far as "many bugs" go, it would probably be more useful to everyone (including you) if you were a bit more explicit! :-)  Platforms it has succesfully compiled and run on are: RS6000, Dec Ultrix Sun Solaris so it is possible.  The main problem is that I don't have access to other platforms than the RS6000, so if there are portability problems then the only way I hear about them is by people letting me know and giving me a clue as to how to fix it.  As far as the software not doing anything, do you really think I would bother releasing it, if that was the case? Perhaps you didn't read the few docs that ARE supplied. The dogfight world is made up of clients only, so if you're in there on your own, then you're not going to see anything! The dactyl world has quite a lot of scenary - so if you don't see anything there, then this is definitely a problem!  One final word - if you're not interested, don't bother with it. If you are interested, then please remember that I'm not asking for any money! So why not try a little patience and constructive criticism, maybe that will get results??
mharring@cch.coventry.ac.uk (MARTIN) writes:  >I have been looking around some Ftp sites and cannot find one with any good >GIF files. Could someone please tell me of some Ftp sites which do posses >goods GIFS and a wide range.  Whatever you do, don't FTP to the sites listed in my sig...   You won't like what you find...really.  I beg you NOT to GO there! PLEASE!  ...e
>O.K., sorry to post a question which seems to crop up >quite regularly in this group however I have yet >to get a specific and usefull (in my context) answer    >to where I can get hold of 3d data for a head. > >WHAT I AM LOOKING FOR : > >Simple polyon description of head / face which can be EASILY >converted for, or used with, POV (raytracer).  >(i.e. <1500 polygons)  Well, I am placing a file at my ftp today that contains several polygonal descriptions of a head, face, skull, vase, etc. The format of the files is a list of vertices, normals, and triangles. There are various resolutions and the name of the data file includes the number of polygons, eg. phred.1.3k.vbl contains 1300 polygons.   In order to get the data via ftp do the following:  	1) ftp taurus.cs.nps.navy.mil 	2) login as anonymous, guest as the password 	3) cd pub/dabro 	4) binary 	5) get cyber.tar.Z  Once you get the data onto your workstation:  	1) uncompress data.tar.Z 	2) tar xvof data.tar  If you have any questions, please let me know.  george dabro dabro@taurus.cs.nps.navy.mil --  george dabrowski Cyberware Labs
In article <1993Apr10.160929.696@galki.toppoint.de> ulrich@galki.toppoint.de   writes: > According to the TIFF 5.0 Specification, the TIFF "version number" > (bytes 2-3) 42 has been chosen for its "deep philosophical  > significance". > Last week, I read the Hitchhikers Guide To The Galaxy, > Is this actually how they picked the number 42?  I'm sure it is, and I am not amused.  Every time I read that part of the TIFF spec, it infuriates me- and I'm none too happy about the complexity of the spec anyway- because I think their "arbitrary but carefully chosen number" is neither.  Additionally, I find their choice of 4 bytes to begin a file with meaningless of themselves- why not just use the letters "TIFF"?  (And no, I don't think they should have bothered to support both word orders either- and I've found that many TIFF readers actually don't.)
In article <C5w8xB.Iv6@world.std.com>, wdm@world.std.com (Wayne Michael) writes:  >    I have been searching for a quality image enhancement and >    manipulation package for Unix/X/Motif platforms that is comparable >    to Adobe Photo Shop for the Mac.  Corel Draw 4 will be able to do this as it will include the Photopaint stuff that  the PC version got with version 3. Don't hold your breath though.  -- Chris Lilley ---------------------------------------------------------------------------- Technical Author, ITTI Computer Graphics and Visualisation Training Project Computer Graphics Unit, Manchester Computing Centre, Oxford Road,  Manchester, UK.  M13 9PL                        Internet: C.C.Lilley@mcc.ac.uk   Voice: +44 (0)61 275 6045  Fax: +44 (0)61 275 6040 Janet: C.C.Lilley@uk.ac.mcc
In article <7208@pdxgate.UUCP> idr@rigel.cs.pdx.edu (Ian D Romanick) writes: > They talked about another routine that could yield up to 150 to 1 > compress with no image loss that *I* could notice.  The draw back is that it > takes a hell of a long time to compress something.  I'll have to see if I can > find the book so that I can give more exact numbers.  TTYL.  That's a typical claim, though they say they've improved compression speed considerably.  Did you find out anything else about the book?  I'd be interested in looking at it if you could give me any pointers.  Reportedly, early fractal compression times of 24-100 hours used that marvelous piece of hardware called "grad students" to do the work.  Supposedly it's been automated since about 1988, but I'm still waiting to be impressed.
In <1993Apr20.083731.260@eicn.etna.ch> NO E-MAIL ADDRESS@eicn.etna.ch writes: >Do somenone know the solution to run XV ??? any help would be apprecied..  I would guess that it requires X, almost certainly DV/X, which commonly uses the GO32 (DJGPP) setup for its programs.  If you don't have DV/X running, you can't get anything which requires interfacing with X.
Does anyone truely understand the "INVALID NORMAL ARRAY" error 3ds gives you while rendering?  It seems to present itself while rendering complicated images.  I have circumvented this problem by rendering at the command line, however it would be nice to render inside the editor. Is this a memory problem???
Hello, and thank you for reading this request.  I have a Mpeg viewer for x-windows and it did not run because I was running it on a monochrome monitor.  I need the mono-driver for mpeg_play.
lioness@maple.circa.ufl.edu: > Okay, I got enough replies about the Kubota Kenai/Denali systems that I > will post a summary of their capabilities.  [ ... ] >  > GRAPHICS >  > Transform Modules           1-6                     1-6 > Frame Buffer Modules        5,10,20                 5,10,20 > Frame Buffer                1280x1024x24bit         1280x1024x24bit >                             double buffered         double buffered > Z-buffer                    24-bit                  24-bit > Alpha/stencil               8-bit                   8-bit  pmartz@dsd.es.com (Paul Martz): | Does this mean they can either do alpha or stenciling, but not both | simultaneously?  lioness@maple.circa.ufl.edu: > Stereo support              yes                     yes > Other:                      both machines will double buffer or do >                             stereo output per window.  Both have an >                             auxiliary video output that is RS-170A, >                             NTSC, and PAL  pmartz@dsd.es.com (Paul Martz): | Same question again, does this mean they can either do double | buffering or stereo, but not both simultaneously?      For both these questions, it's an inclusive or.  Alpha plus stencil is supported (they're separate), as is double-buffered stereo.
Printer model and specification:  Canon CLC 500 (Color Laser Copier) ps-ipu unit (postscript intelligent processing unit)   Hello,  We have recently purchased a very expensive and nice color copier/printer.  We want to be able to print to it from our SGI iris network.  The  copier/printer has both a parallel and SCSI interface.  I have configured the printer with the "lp" system using the parallel interface and can print  postscript files to the printer.  I can also print rgb files, but these are in  turn converted to postscript by an internal filter.  The Canon CLC 500 is a  publication quality printer but the quality of our postscript printouts  are less than acceptable.  We create the postscript files with a variaty of  programs, such as showcase, xv, and tops.  When we convert to postscript  with tops and use the -l option to specify the halftone screen density of 98  rather than the default 40 the output is better, but still much less that  acceptable.  Note, that we are starting with a screen image in rgb image format and translating the image into postscript.  We suspect that if we could use the SCSI interface we would get higher quality  pictures.  We have not purchased the software that drives the printer from the  SCSI port.  To my knowledge this software is $5000 and does not come with a  warranty.  The management here does not want to spend this much money without  some assurance that the product will work.   Here my questions:  If anybody on the net uses this printer are you using the SCSI or  parallel port?  What is the quality of the printouts?  Is there a way to create high quality postscript printouts?  What is the limiting component, the postscript language or the postscript interpretor on  the printer?   The Big question:  Where can I get some software to drive the SCSI port for this printer?    Please email directly to me, I don't not read news on a regular basis.  I will post a summary.  Thanks in advance.