Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!ames!ucbcad!ucbvax!ADS.ARPA!Info-Graphics-Request From: Info-Graphics-Request@ADS.ARPA.UUCP Newsgroups: mod.graphics Subject: Info-Graphics Digest Message-ID: <8703221425.AA28896@ucbvax.Berkeley.EDU> Date: Sun, 22-Mar-87 06:00:29 EST Article-I.D.: ucbvax.8703221425.AA28896 Posted: Sun Mar 22 06:00:29 1987 Date-Received: Mon, 23-Mar-87 01:52:22 EST Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: Info-Graphics@ADS.ARPA Distribution: world Organization: The ARPA Internet Lines: 448 Approved: info-graphics@ads.arpa Info-Graphics Digest Sun Mar 22 03:00:30 PST 1987 - Send submissions to Info-Graphics@ADS.ARPA - Send requests for list membership to Info-Graphics-Request@ADS.ARPA Today's Topics: 8x8 dither matrix TV Zoom, Pan and Rotate Graphics System Configuration wanted GIGI terminal information Hoops announcement Submission for mod-graphics Help! Looking for UIOs for Plot 10 GKS on a Data General machine Turbo Graphix Toolbox Graphics Info Pointers Re: Turbo Graphix Toolbox Help Requested: Graphics Packages for HP 9836 Submission for mod-graphics Graphics data sets wanted Graphics Standards ---------------------------------------------------------------------- Date: Mon, 2 Mar 87 10:14:35 PST From: Peter O. Mikes Info on Sun3 <--> Postscript wanted - please help I have Sun's version of cgi for CRT graphics and would like to make hard copies using laser-writer running Postscript -- Is there any cgi driver for Postcript or postcript emulatiom of cgi ???????????? ------------------------------ Date: Tue, 3 Mar 87 8:19:04 EST From: Kenneth Van Camp -FSAC- Subject: 8x8 dither matrix I don't remember who on this list was asking for an 8x8 dither matrix, so I'll post to the list: Here is an 8x8 dither matrix courtesy of Prof. Jan Allebach (Purdue), described in "Digital Ultrasonic Image Construction Using Electronic Ordered Dither Techniques", Journal of Nondestructive Evaluation, Vol. 2 No. 1, 1981 (by Robert A. Blake and Jan P. Allebach). int dither8[8][8] = { { 8, 21, 51, 22, 13, 48, 42, 64 }, { 50, 33, 38, 11, 55, 25, 17, 12 }, { 24, 4, 40, 61, 27, 57, 39, 43 }, { 28, 59, 29, 5, 45, 6, 7, 58 }, { 19, 54, 34, 18, 62, 23, 47, 16 }, { 46, 2, 41, 9, 32, 49, 31, 36 }, { 63, 15, 44, 53, 26, 14, 52, 10 }, { 37, 60, 1, 20, 56, 35, 3, 30 } }; I personally haven't used this matrix, but I've used Allebach's 4x4 matrix with good results. --Ken Van Camp ------------------------------ Date: Tue, 3 Mar 87 10:55:09 EST From: Ed Schwalenberg Subject: TV Zoom, Pan and Rotate Just about every news show I've seen lately features a little window (in the computer sense, not the glass sense) to the right of the anchorperson's head, which spins and rotates in 3 dimensions and zooms and pans about the screen. Usually the window contains the image of the on-the-scene reporter. How is this done? When I was a boy, mapping pixels from a plane in 3-space (the window) to the reference plane (the broadcast TV image) was hard work, and could not be done economically in real time. Now that every neighborhood TV station can afford to have a box that does this, either some efficient cheap hardware (i.e., chips) have been built to do this, or a new breakthrough in graphics algorithms is here. Does anybody know (at the algorithm or block diagram level) how to do this? Also, do they ever zoom beyond 1:1, that is, map one pixel from the window to several in the reference plane? If so, is any interpolation or smoothing done to to eliminate the "fat bits" effect? ------------------------------ Date: Fri, 06 Mar 1987 17:58 PST From: JAJZ801%CALSTATE.BITNET@wiscvm.wisc.edu Subject: Graphics System Configuration wanted I have an artist friend who would like to have a computer graphics system (software plus hardware) that meets the following requirements but is not excessively expensive. That is, it should be based on common, consumer type hardware as opposed to the workstations that are used for specialized CAD/CAM or film production use. The software can be somewhat specialized by market, although he'd like to keep the cost down without sacrificing too much functionality. The requirements: 1. The ability to capture real-world pictures, either by digitizing stills or freezing video images. The less hand tracing the better but ... 2. The capability to convert these images into a mathematical model (as opposed to merely a pixel collection) that can be manipulated with graphics transforms, particularly rotation, translation, and various viewing transformations. I realize that this would probably require composing multiple images of an object into a single mathematical model in several stages. 3. Good, high-resolution output both to screen and to hard-copy devices. Good, editable color capabilites are essential. PC/AT-based solutions would be preferred but MAC, Amiga, etc. solutions are acceptable if they do the job. If it takes specialized monitors and graphics controllers for the software that's acceptable too. (386 systems OK too). Any and all suggestions would be gratefully appreciated. Jeff Sicherman JAJZ801@CALSTATE.BITNET JAJZ801@CCS.CSUSCC.CALSTATE.EDU ------------------------------ Date: Sun, 8 Mar 87 18:14 EST From: Subject: GIGI terminal information X-Original-To: info-graphics@ads.arpa, LMD I have an old GIGI monitor and an equally old monitor that has less than 20 lines display. If I set terminal to VK100 the GNU Emacs editor does-not work. Also I know for sure that there are some GIGI Graphics Editor images floating around in the SYSTEM along with Slide Proj. System and Characterset Editor All I have is a GIGI keyboard monitor and nothing else to go by, so I request information and pointers to effectively use what ever I have at home. All information relating to it will be appreciated. I am not on any network or list so please send me mail directly. I will post the summary to the network later on. We are a VAX/VMS SITE on 4.4 Thanks in advance BITNET: lmd@cunyvms1 INTERNET: lmd%cunyvms1.BITNET@wiscvm.edu ------------------------------ Date: Mon, 9 Mar 87 21:10:19 EST From: garry@tcgould.tn.cornell.edu (Garry Wiegand) Subject: Hoops announcement Organization: Cornell Engineering && Flying Moose Graphics {2nd try at posting. Please excuse if you've seen this already.} ** Graphics Product Announcement ** In keeping with network etiquette, I will try to make this as brief and to-the- point as possible. Apologies in advance to anyone who may be offended (but I hope no one is!) What we have is a beast called "Hoops". Hoops is a large, 2-D/3-D, general- purpose display-list graphics subroutine library. Hoops deals with such things as lines, polygons, text, windows, colors, and cameras. It is designed to run on on many machines and many displays, and its basic purpose is to make your life easier when you sit down to write a graphics application. We've put a lot of effort into: 1) a clean design, 2) speedy program execution, and 3) keeping it cheap! Software completed: C language binding Fortran language binding Support for X-Windows (tested on Ultrix microVax/GPX's) Support for the microVax/GPX running VMS Support for the Parallax 1280 on microVax's running VMS Support for Postscript laser printers, including the Apple In progress: Pascal language binding Support for the Silicon Graphics Iris workstation Support for the Sun 3 workstation Support for the IBM 5080 on IBM mainframes Support for the Number Nine "Pro1280" on IBM PC/AT's Support for the Pixelworks "ClipperBoard" on IBM PC/AT's Commercial licenses are moderately priced, with large discounts for volume purchases. University licenses are generally priced at 25% of commercial licenses; university license fees may, under some conditions, be waived entirely. Source code is available; demo copies are available. For further information, call: Gary Wayne Flying Moose Systems & Graphics (607) 273-3690 // The Clinton House // Ithaca, New York 14850 Or send your post-office address to me. Thanks for listening - Garry Wiegand (c/o garry@oak.cadif.cornell.edu) ------------------------------ From: Barbara Siefken Date: 11 Mar 87 22:41:34 GMT Subject: Submission for mod-graphics Responding-System: tekecs.TEK.COM Path: tekecs!barbara From: barbara@tekecs.TEK.COM (Barbara Siefken) Subject: Help! Looking for UIOs for Plot 10 GKS on a Data General machine Date: 11 Mar 87 22:41:24 GMT Distribution: net Organization: Tektronix Inc., Wilsonville, OR Lines: 8 Keywords: Plot 10, GKS, Data General Does anyone out there have (or know of someone who has) device drivers written for Plot10 GKS on a Data General machine? If so, please contact Guy Blair (503)-685-3936 tektronix!tekecs!oscar!guyb Thank you in advance for your assistance. ------------------------------ Date: Thu, 12 Mar 87 10:59:05 EST From: Kenneth Van Camp -FSAC- Subject: Turbo Graphix Toolbox Due to requests from numerous users to get my public domain surface modeling program (SURFMODL) running on different graphics devices besides the IBM CGA, I have purchased the Borland Turbo Graphix Toolbox and am now attempting to recompile the program for the Heath/Zenith Z100, Hercules board, and EGA. Not having access to these devices, it's a little difficult to do. I was hoping someone could help with one or more of the problems I am having. The manual (and the files accompanying it) were a little vague; the biggest question I have is regarding the number of colors available. I notice that Maxforeground for the IBM CGA, for instance, is 15. But the problem is that, in graphics mode, you only have 4 simultaneous colors in med-res mode and 2 colors in hi-res mode. It appears that the toolbox supports only the hi-res mode on this board (or am I wrong about this?), and I certainly never would have realized it only had two 2 simultaneous colors available from looking at the documentation. So the question is, what are the actual number of simultaneous colors available on the rest of the devices? I know the Hercules only has 2, but what is the Z-100? Is it really 7 foreground, plus the background? If you have info on any of the other devices supported by the Toolbox, please let me know. Right now here's all I have to go by: Hardware # colors (simultaneous?) CGA 2 Hercules 2 Z-100 8 EGA 15 IBM 3270 15 AT&T 6300 15 I assume they know what they're talking about with the resolutions. My other question was regarding the Z-100's 7 foreground colors, which the manual makes a point of mentioning is limited to numbers greater than 0 (can't make Black the foreground color). So how do you erase a line? In other words, one thing I do repeatedly in SURFMODL is draw a line (or point) in black, which erases whatever was under the line. The Z-100 version won't set the foreground color to 0. Actually, I already tried this using the CGA library of the toolbox, like this: SetForegroundColor (0); DrawPoint (x, y); This doesn't even work on the CGA. The point is always colored, not black. (I don't know what color it is, since I'm working on a monochrome monitor.) My dithering routines will NEVER work if I can't set a point to black. Finally, I sat down at an EGA system for a few minutes to try out the version I compiled for that, and got the following message upon entering graphics mode: Fatal Error: graphics hardware not found or not properly activated The only explanation I can think of is that this EGA system doesn't have any of the special EGA memory, and the Turbo routines are expecting memory. Does anybody know if this is the case? --Ken Van Camp ------------------------------ Fri, 13 Mar 87 10:23:44 +0100 Date: 12 Mar 87 15:50:00 GMT-0:00 From: "GMDGKS::PFLUEGER" Subject: Graphics Info Pointers CGI, CGM and GKS are (or will become soon) International Standards. The respective documents are Computer Graphics Interface CGI: ISO DP 9636 Computer Graphics Metafile CGM: ISO DIS 8632 Graphical Kernel System GKS: ISO IS 7942 These documents and further information about Graphics Standardisation are available at the national standards bodies. For the U.S. this is National Bureau of Standards Mr. Mark W. Skall Technology Bldg., Rm. A266 Gaithersburg, MD 20899 ARPA: SKALL@ICST-ECF or SKALL@ICST-ISE or SKALL@NBS-ECF Clemens Pflueger UUCP: ...unido!gmdzi!kirsch GMD (Gesellschaft fuer Mathematik BITNET: GNKP00@DBNGMD21 und Datenverarbeitung) PO Box 1240 D-5205 Sankt Augustin 1 F.R.Germany ------ ------------------------------ Date: Fri 13 Mar 87 11:33:51-EST From: Gern Subject: Re: Turbo Graphix Toolbox Ken The Z-100, for most intent, has only one mode: High res grahics with 8 colors available (0-7) for both forground and background. Text is just so much graphics. Of course, setting the forground and background colors the same is not of much use, but all combinations, including black as a forground (Black on Red, etc) are acceptable, and every point of the 225x640 pixels of the screen can be individually set to any of the 8 colors. The only other mode of the Z-100 is interlace (combining the two available video pages into one) of 640x512 in 8 colors per pixel, but most applications set it to use 640x480 in 8 colors. The terms forground/background are really only of use when using the text display calls, as all the pixels can be of any of the 8 colors and the text calls alter an 8 by 9 area of pixels. A neat, well designed machine... Cheers, Gern ------- ------------------------------ Subject: Help Requested: Graphics Packages for HP 9836 Date: Thu, 12 Mar 87 11:15:08 -0800 From: John King We have four HP 9836CU color graphics workstations for instructional use. Our colleagues in the UCI school of fine arts would like to use these machines for some computer graphical arts work, and were very impressed with some HP demos they saw. Of course, the sticky part is where to get software that provides a good base for doing things like "painting" or "drawing" and suchlike. We offered them HP-BASIC, which came with them, but we did point out that this isn't the customary approach to doing graphics.... Does ANYONE have any ideas of where to turn for help on this matter? HP is totally useless --- both we and the fine arts folks tried to get some info on HP products (note, not the products of others, but HP products) and didn't get anywhere. That's a company run by engineers for sure. If you have any leads, please forward them to: John King king@ics.uci.edu Thanks a lot... John King Department Chair Information and Computer Science UCI ------------------------------ From: swatsun!babylon!ruff@seismo.CSS.GOV (Joseph Ruff) Date: 18 Mar 87 03:53:34 GMT Subject: Submission for mod-graphics Responding-System: babylon.swatsun.UUCP Path: swatsun!ruff From: ruff@swatsun.UUCP (Joseph Ruff) Subject: Graphics data sets wanted Keywords: graphics data set wanted Date: 18 Mar 87 03:53:33 GMT Organization: Swarthmore College, Swarthmore PA Lines: 19 Does anyone out there have a data set they are willing to send us? We have new graphics terminals and software and we are eager to try them out without typing in long lists of numbers. We can use almost any type of data format, but objects made up of triangles or in Movie BYU format are the best. We would really appreciate any help and we are willing to forward any data sets we get to other contributors, if you want to submit a data set and hopefully get something in return. Thanks for any help... The Graphics Lab Physics Department Swarthmore College Swarthmore, PA 19081 Joseph Ruff ..!ihnp4!bpa!swatsun!ruff ------------------------------ Date: Thu, 19 Mar 1987 11:59:24 EST From: Lawrence Gottesman Subject: Graphics Standards Status: R Would you be able to direct me to a network accessible repository where the current ANSI and ISO graphics standards and drafts are kept? I am interested in GKS and PHIGS standards in particular. Thanks. ------------------------------ End of INFO-GRAPHICS ********************