waashk/20ng huggingface dataset:
In article <1rb22k$l7v@neuro.usc.edu>, merlin@neuro.usc.edu (merlin) writes: |> Could someone explain the difference between Tom Gaskins' two books: |>  |>   o  PEXLIB Programming Manual |>   o  PHIGS Programming Manual |>  |> Why would I want to buy one book vs the other book?  I have an 80386  PEXLIB and PHIGS (as it comes from MIT with PEX and as is explained in the PHIGS Programming Manual) are just different API's for the PEX protocol, which is an extension to the X protocol.  So it depends on You, what you go to use.  Advantage of Phigs is the protability to other platforms (IBM GraPhigs,  SunPhigs) and the standardized structuring of the 3D objects.  Advantage of PEXlib is the sometimes faster and easier programming for immediate mode graphics, because PEX is not an exactly mapping of Phigs to a Prortocol.  --         \|/       (o o)  -oOO--(_)--OOo--------------------------------------------------------   \\    Roland Holzapfel       Computer     email:                   //    \\   Wilhelminenstrasse 7   Graphics       holzapfe@igd.fhg.de   //    //   6100 Darmstadt          Center      phone:                  \\   //    Germany                 (ZGDV)        ++49 6151 155150       \\  -----------------------------------------------------------------------   >>             This space intentionally left blank                 <<
In article <FULL_GL.93Apr18005752@dolphin.pts.mot.com>, full_gl@pts.mot.com (Glen Fullmer) writes: |> Looking for a graphics/CAD/or-whatever package on a X-Unix box that will |> take a file with records like: |>  |> n  a  b  p |>  |> where n = a count  - integer  |>       a = entity a - string |>       b = entity b - string |>       p = type     - string |>  |> and produce a networked graph with nodes represented with boxes or circles |> and the vertices represented by lines and the width of the line determined by |> n.  There would be a different line type for each type of vertice. The boxes |> need to be identified with the entity's name.  The number of entities < 1000 |> and vertices < 100000.  It would be nice if the tool minimized line |> cross-overs and did a good job of layout.  ;-) |>  |>   I have looked in the FAQ for comp.graphics and gnuplot without success. Any |> ideas would be appreciated? |>  |> Thanks, |> -- |> Glen Fullmer,          glen_fullmer@pts.mot.com,                  (407)364-3296 |>   Hi,   See Roger Grywalski's response to :  Re: Help on network visualization  in comp.graphics.visualization.  Amongst other things, it does exactly this!
Kendall 'Opusii' Sears (krsear02@ulkyvx.louisville.edu) wrote: :  : or the biggest killer (IMO) :  :    6) one's dreams are (sadly) shattered on the hard rocks of society's :       version of reality.  Without the dream the motivation dies, without :       the motivation the effort seems useless. :   Actually there are more possibilities -- one is that with practice the hacker has become so good and powerful in manipulating data streams that s/he goes simply underground...  Possessing true power perhaps there is no need to impress anyone with it.
In article <5713@seti.inria.fr>, deniaud@cartoon.inria.fr (Gilles Deniaud) writes: > Hi, >  > I'm looking for a program which is able to display 24 bits > images. We are using a Sun Sparc equipped with Parallax > graphics board running X11.  	xli, xloadimage or ImageMagick - export.lcs.mit.edu [18.24.0.12] /contrib
In article <1qkgbuINNs9n@shelley.u.washington.edu> bolson@carson.u.washington.edu (Edward Bolson) writes: >Boy, this will be embarassing if it is trivial or an FAQ: >center and radius, exactly fitting those points?  I know how to do it >for a circle (from 3 points), but do not immediately see a  >straightforward way to do it in 3-D.  I have checked some >geometry books, Graphics Gems, and Farin, but am still at a loss? >Please have mercy on me and provide the solution?    Off the top of my head, I might try:  Given: p_1, p_2, p_3, p_4  Find:  p_c (center of sphere determined by p_1, ..., p_4),         dist(p_c, p_i) (radius)  p_c is the same distance from our four points, so dist(p_c,p_1) = dist(p_c,p_2) = dist(p_c,p_3) = dist(p_c,p_4)   Of course, we can square the whole thing to get rid of square roots: distsq(p_c,p_1) = distsq(p_c,p_2) = distsq(p_c,p_3) = distsq(p_c,p_4)   Plug in the variables into the distance formula, simplify, and the  x^2_c, y^2_c, and z^2_c terms cancel out, leaving you with three  linearly independent equations and three unknowns (x_c, y_c, z_c).   Solve using your favorite method.  :)   All the best,  - John :)  ------------------------------------------------------------------------------- Dr. John S. Eickemeyer                 ::     "The Lord God is subtle, Information Technology Institute      ::::     but malicious He is not." National Computer Board, Singapore     :: Email: johne@iti.gov.sg                ::                     - Albert Einstein
Recently we have found TIFF manipulation packages which do not recognize TIFF files output by xv.  This is due to a missing XRESOLUTION and YRESOLUTION tag which apparently is required (or at least believed to be required) for valid TIFF.  I have checked both xv 2.x and xv 3.x and neither of these do indeed copy these tags.  Has anyone out there hacked in the fixes for xv to support these tags? I have been told that I could find some code in tiff/tools/tiffcp.c, but that directory is one of many of the tiff group not distributed with xv.  I hope to obtain the original tiff src and look at it, but would prefer to find code already known to work in xv.
In article <0010580B.0b6r49@diablo.UUCP> diablo.UUCP!cboesel (Charles Boesel) writes: > >In article <C5w8xB.Iv6@world.std.com> (sci.image.processing,comp.graphics), 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. [stuff deleted] > >I understand that Adobe is working on making Photoshop available for >the SGI Indigo, but that is just "rumor" and I wouldn't bet on it >until I see it. But they >are< going to release Illustrator for the SGI >"real soon now." > >-- >charles boesel @ diablo creative |  If Pro = for   and   Con = against >cboesel@diablo.uu.holonet.net    |  Then what's the opposite of Progress? >+1.510.687.3119(work)            |  What else, Congress.  I was at an Adobe seminar/conference/propaganda forum/whatever-you-want-to- call-it a couple months ago where they announced that Display Postscript was going to be included in the next release of Sun's OS, (presumably Solaris.) Sun was going to drop their development of Newsprint, and, in return for this, Adobe was going to port Illustrator and Photoshop to Sun.  Other than the articles that appeared in the trade journals immediately after, I haven't heard a peep about it.  I hope it's still in the works.
I am writing some utilies to convert Regis and Tektonic esacpe sequences   into some useful formats. I would rather not have to goto a bitmap format.   I can convert them to Window Meta FIles easily enough, but I would rather   convert them to Corel Draw, .CDR, or MS Power Point, .PPT, files.   Microsoft would not give me the format. I was wondering if anybody out   there knows the formats for these two applications.
sol.surv.utas.edu.au (Stephen Quan) writes:  >>>>[...], but I'm looking for a fast polygon routine to be used in a 3D game. >>>A fast polygon routine to do WHAT? >>To draw polygons of course.  Its a VGA mode 13h (320x200) game, [...] > >Hi, I've come across a fast triangle fill-draw routine for mode 13h.  By >calling this routine enough times, you have a fast polygon drawing routine. > >I think I ftp'ed from wuarchive.wustl.edu:/pub/MSDOS_UPLOADS/programming. >I have a copy of it so I reupload it there.  The triangle.txt file has this >to say : > >>  C and inline assembly source for a VGA mode 13h triangle drawer. > Another source:  There's a poly blitter for mode y (mode x in 320x200) at sunee.uwaterloo.ca.  Also there is REND386, an even faster 3D renderer with VR extensions.   -------------------------------------------------------------------------- | My life is Hardware,                    |         Dave Stampe          |  | my destiny is Software,                 | dstampe@psych.toronto.edu    | | my CPU is Wetware...                    | dstampe@sunee.uwaterloo.ca   |  | Am I a techno-psychologist, or just a psycho-engineer ??               |
We have a minivas-2 and we want to record to an Abekas A66. We have most of the functions working but when we go to set up a record the minivas hangs. We are sending the abekas SMPTE time code. Does anyone have code we can compare to what we have done and is there and ftp site for minivas and abekas code.  Gordon Phillips glp@cray.com
Visual Numerics Inc. (formerly IMSL and Precision Visuals) is in the process of securing sites for beta testing X Exponent Graphics 1.0  and C Exponent Graphics 2.0.  (Both X Exponent Graphics and C Exponent Graphics are 3GL products).  The beta period is from April 26 through  June 18.  The platform is HP9000/700 running under OS 8.07 with  ansi C 8.71 compiler.  The media will be sent on 4mm DAT cartridge  tape.  Here are some of the key facts about the two products.   X Exponent Graphics 1.0 key facts:   1. Complete collection of high-level 2D and 3D application plot types    available through a large collection of X resources. 2. Cstom widget for OSF/Motif developers. 3. Built-in interactive GUI for plot customization. 4. Easily-implemented callbacks for customized application feedback. 5. XEG 1.0, being built on the Xt Toolkit provides the user a widget     library that conforms to the expected syntax and standards familar     to X programmers. 6. XEG will also be sold as a bundle with Visual Edge's UIM/X product.    This will enable user to use a GUI builder to create the graphical    layout of an application.   C Exponent Graphics 2.0 key facts:   1. Written in C for C application programmers/developers.  The library    is 100% written in C, and the programming interface conforms to C    standards, taking advantage fo the most desirable features of C. 2. Build-in GUI for interactive plot customization.  Through mouse     interaction, the user has complete interactive graph output control    with over 200 graphics attributes for plot customization. 3. Large collection of high-level application functions for "two-call"    graph creation.  A wide variety of 2D and 3D plot types are available    with minimal programming effort. 4. User ability to interrupt and control the X event.  By controlling    the X event loop, when the user use the mouse to manipulate the  plot    the user can allow CEG to control the event loop or the user can     control the event loop.   If anyone is interested in beta testing either of the products, please contact Wendy Hou at Visual Numerics via email at hou@imsl.com or call 713-279-1066.     --  Jaclyn Brandt jbrandt@NeoSoft.com
Is Impulse shipping IMAGINE for the PC386/486?  How close is it to the Amiga's IMAGINE 2.0, in terms of features?
In article <1993Apr28.090635.15878@waikato.ac.nz> pdenize@waikato.ac.nz writes:  >I saw an imaging program some time ago on an Amiga that had >Cross, Sobel and Roberts filters for edge detection.  > >Can anybody direct me to these algorithms.  OK, never heard of Cross filters, but Roberts, Prewitt and Sobel filters are standard spatial masks for edge detection.  Highpass filtering does a good job of detecting edges, too.  A good reference for all sorts of general digital image processing is the book _Digital Image Processing_ by Rafael C. Gonzalez and Richard E. Woods.  Addison-Wesley Publishing Co. 1992. ISBN 0-201-50803-6  I've used this source to do the above filters and many other things as a grad project.  Not too dificult to do.  The worst part is loading in the images from TIFF/GIF/IFF-ILBM/whatever!  :)
In article <5713@seti.inria.fr>, deniaud@cartoon.inria.fr (Gilles Deniaud) writes:  >I'm looking for a program which is able to display 24 bits >images. We are using a Sun Sparc equipped with Parallax >graphics board running X11.  Utah raster toolkit using getx11. Convert your sun raster files (presumably) to  ppm with the pbm+ toolkit then convert ppm to utah rle format with ppmtorle which is provided in the toolkit.  I seem to remember that Xloadimage can do 24 bit servers too.  Possibly xwud the x window un-dump program can display 24 bit images; certainly xwd can grab them.  -- 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 <1993Apr13.025240.8884@nwnexus.WA.COM>, mpdillon@halcyon.com (Michael Dillon) writes: > I have an algorithm similar to Bresenhams line drawing algorithm, that > draws a line by stepping along the minor axis and drawing slices like > AAAA, BBBB, CCCC in the following diagram. >  >      AAAA >          BBBB >              CCCC >   	Yes, that's known as "Bresenhams Run Length Slice Algorithm for Incremental lines". See Fundamental Algorithms for Computer Graphics, Springer-Verlag, Berlin Heidelberg 1985.  > I have tried to extrapolate this to circles but I can't figure out > how to determine the length of the slices. Any ideas?  	Hmm. I don't think I can help you with this, but you might take a look at the following:  	"Double-Step Incremental Generation of Lines and Circles", X. Wu and J. G. Rokne, Computer Graphics and Image processing, Vol 37, No. 4, Mar. 1987, pp. 331-334  	"Double-Step Generation of Ellipses", X. Wu and J. G. Rokne, IEEE Computer Graphics & Applications, May 1989, pp. 56-69
Does anyone out there have or know of, any kind of utility program for  Ribbons?   Ribbons are a popular representation for 2D shape.  I am trying to find symmetry axis in a given any 2D shape using ribbons.   Any suggestions will be greatly appreciated how to start program.    Thanks very much in advance, Hoi
Some rendering programs require that all surface normals point in the same direction.  (ie: On a closed cube, all normals point outwards).  You can use the points on the faces to determine the direction of the normal, by making sure that all points are either in clockwise or counter-clockwise order.  How do you go about orienting all normals in the same direction, given a  set of points, edges and faces?   Say that you had a cube with all faces that  have their normals facing outwards, except for one face.  What's the best way to realize that face is "flipped", and should have it's points re-ordered?   I thought I had a good way of telling this, but then realized that the algorithm I had would only tell you if you had points in clockwise order for a 2d polygon.  I'd like something for 3d data.  Any hints, tips, references would be appreciated.  Steve
FOR IMMEDIATE RELEASE  Editorial Contact: Single Source Marketing:  Myra Manahan    (714) 545-1338 Genoa Systems:            Joseph Brunoli  (408) 432-9090                           Neil Roehm      (408) 432-9090/Technical                         Genoa Presents High Performance                          Video Graphics Accelerator          SAN JOSE, Calif USA -- Genoa Systems Corporation announces  WINDOWSVGA 24,  a True Color 24-bit graphics accelerator card that  delivers up to 16.8 million colors at speeds faster than the  competition.  Plus it offers a full range of resolutions, high  refresh rates as well as unique proprietary performance features.   The card is available in both 16-bit ISA bus and 32-bit VESA Local  bus versions (models 8500 AND 8500VL).         With 1MB DRAM on board, the WINDOWSVGA 24 card offers  maximum resolution up to 1,280 x 1,024 and supports a refresh rate  of 72Hz at 800 x 600 and resolution up to 1,024 x 768  non-interlaced. Both models provide performance many times greater  than standard SVGA boards, yet conform to all current video  standards.         WINDOWSVGA 24 features Genoa's FlickerFree(tm) technology,  which eliminates screen flash and flicker to make viewing much more  comfortable.  the cards also come with Safescan(tm), a utility  developed by Genoa to eliminate the black border around the screen  and thereby provide 100-percent screen use for overscanning monitors.         WINDOWSVGA model 8500VL takes full advantage of the speed  offered by the new VESA Local bus technology.  Most VL bus cards  will only handle data transfers up to 33MHz, but the 8500VL will  transfer data at the full speed of the CPU, up to 50MHz.  Genoa is  also offering this card in the "TurboBahn" combination packaged  with their TURBOEXPRESS 486VL motherboard.         Built around the Cirrus Logic GD-5426 GUI accelerator,  WINDOWSVGA 24 offers the user an exceptional price/performance  value.  Genoa's advanced proprietary drivers act to "turbocharge"  the chip, thereby providing an affordable accelerator card with  power and performance that surpass many of the more highly priced  chip cards.  The Genoa user will enjoy optimal speed and  reliability for such programs as Windows, AutoCAD, AutoShade, 3D  Studio, OS/2, OrCAD and more.  Driver updates and product bulletins  are available on Genoa's BBS at (408) 943-1231.         Genoa Systems manufactures and markets an extensive line of  graphics adapters, motherboards, audio and multimedia cards for  IBM-compatible personal computers.  All products come with a two  year limited warranty on parts and labor.  Genoa products are  currently distributed worldwide through authorized distributors,  resellers, VARs and systems integrators.         For more information contact Joe Brunoli, Marketing  Manager, Genoa Systems at 75 E. Trimble Road, San Jose, Calif.  95131; Tel: (408) 432-9090 or (800) 934-3662; Fax: (408) 434-0997.
In article <115072@bu.edu> kiki@PROBLEM_WITH_INEWS_GATEWAY_FILE (Keith Baccki) writes: >C. Lee (lee@obiwan.rsg.hac.com) wrote: >:  Did you say DEC Alpha?  Upgrade path from [...] >:  6xx0: replace.  Upgrade path from VAX 66x0 to Alpha: replace the system.  >	Not totally fair - you haven't mentioned the DECstation >series. I think if SGI made CISC mainframes they wouldn't provide >an upgrade path to an Onyx.  I agree with you about the upgrade path; but I think I was fair.  The original posting complained (1) about SGI coming out with newer (and better) architectures and not having an upgrade path from the older ones, and (2) that DEC did.  On statement (1), I merely attempted to point out that all computer companies are constantly attempting to improve their product (& market position/share).  In so doing, they eventually come to a point where they have a new architecture, and the only upgrade path is to replace the system.  And the particular system he was complaining about was (in computer lifetimes) relatively old.  On statement (2), I felt DEC's history of providing upgrades was not far superior than the industry "average", and that, in my opinion, SGI's history is better than DEC's.  (And what is DEC doing with it's MIPS based DECstation line?  Are they going to "abandon" it for their Alpha based line, or provide an upgrade path to R4400's and TFP's and R5's?)
In <0010580B.vma7o9@diablo.UUCP> diablo.UUCP!cboesel (Charles Boesel) writes:   >In article <1993Apr19.171704.2147@Informatik.TU-Muenchen.DE> (comp.graphics.gnuplot,comp.graphics), rdd@uts.ipp-garching.mpg.de (Reinhard Drube) writes: >>In article <C5ECnn.7qo@mentor.cc.purdue.edu>, nish@cv4.chem.purdue.edu (Nishantha I.) writes: >>|> 	Could somebody let me know of a drawing utility that can be >>|> used to manipulate postscript files.I am specifically interested in >>|> drawing lines, boxes and the sort on Postscript contour plots. >>|> 	I have tried xfig and I am impressed by it's features. However >>|> it is of no use since I cannot use postscript files as input for the >>|> programme.Is there a utility that converts postscript to xfig format? >>|> 	Any help would be greatly appreciated. >>|> 				Nishantha >Have you checked out Adobe Illustrator? There are a few Unix versions >for it available, depending on your platform. I know of two Unix versions: >One for Mach (NeXT) and for Irix (SGI). There may be others, such >as for Sun SparcStation, but I don't know for sure.  You can include postscript epsi files in xfig (encapsulated postscript info files). You can't actually edit the postscript file, but you're able to draw over the postscript file.  There a eps to epsi converter: eps2epsi (perl program),  Succes,
I am looking for some graphic images of earth shot from space.  ( Preferably 24-bit color, but 256 color .gif's will do ).  Anyways, if anyone knows an FTP site where I can find these, I'd greatly appreciate it if you could pass the information on.  Thanks.   ( please send email ).   Ken Huisman
Is the ".3ds" file format for Autodesk's 3D Animation Studio available?  Thanks, Gary
Yesterday I wrote a program to do bilinear interpolation ala Numerical Recipes, with the PBMPLUS libraries.  I'm pretty happy with the results, but I'm looking for any already-coded non-linear interpolation schemes before I go ahead an try to write one.  Any pointers?  --
mars@ixos.de (Martin Stein) writes:  #I use xwd/xpr (from the X11R5 dist.) and various programs of the #ppm-tools to print hardcopies of colored X windows. My problem is,  I don't like xpr. It gives (at least, the X11R4 version does) louzy output: the hardcopy looks very grainy to me. Instead, I use pnmtops. This takes full advantage PostScript, and lets the printer do the dirty job of dithering a (graylevel) image to black and white dots.  So: if you have a PostScript printer, try: 	xwdtopnm <xwdfile> |	# convert to PPM 	[ppmtopgm |]		# .. to graylevel for smaller file to print 	pnmtops -noturn |	# .. to PostScript 	lpr			# print  pnmtops Has several neat options, but use them with care: If you want your image to be 4" wide, use: 	pnmtops -noturn -scale 100 -width 4 -noturn Prevents the image from being rotated (if it is wider than it 	is high) -width 4 Specifies the PAPER width (not the image width - see below) -scale 100 Is used because if the image is small, it may fit within a 	width less than 4", and will thus be printed smaller than 4" wide. 	If you first scale it up a lot, it will certainly not fit in 4", and 	will be scaled down by pnmtops automatically to fit the specified 	paper width.  	In short: pnmtops will scale an image down to fit the paper size, 	but it will not blow it up automatically.  Hope this helps. Marcel.