simulation@uflorida.cis.ufl.edu (Moderator: Paul Fishwick) (07/09/90)
Volume: 16, Issue: 7, Mon Jul 9 09:29:18 EDT 1990 +----------------+ | TODAY'S TOPICS | +----------------+ (1) Standard Model Interface (2) RE: Virtual Reality and Simulation (3) Transporting BONeS Databases (4) RE: Terminology in Simulation (5) Workshop on Geometric Modeling * Moderator: Paul Fishwick, Univ. of Florida * Send topical mail to: simulation@bikini.cis.ufl.edu OR post to comp.simulation via USENET * Archives available via FTP to bikini.cis.ufl.edu (128.227.224.1). Login as 'ftp', use your last name as the password, change directory to pub/simdigest. Do 'type binary' before any file xfers. * Simulation Tools available by doing above and changing the directory to pub/simdigest/tools. ----------------------------------------------------------------------------- Date: Thu, 5 Jul 90 12:47:33 EDT From: randy@aplcomm.jhuapl.edu (RANDALL SCHRICKEL (NCE) x7661) Path: aplcomm.jhuapl.edu!randy Newsgroups: comp.simulation,comp.std.misc Subject: Standard Model Interface Expires: References: Sender: Reply-To: randy@aplcomm.jhuapl.edu (RANDALL SCHRICKEL (NCE) x7661) Followup-To: Distribution: usa Organization: JHU/APL, Laurel, MD Keywords: Apparently-To: simulation@uflorida.cis.ufl.edu This is a very general question, for which there may be many or no answers, but I'm hoping for some ideas/suggestions/pointers. What I'm looking at as a research project is just what the subject says. That is, we have some graphics software that runs on top of an Ingres database. Input for the graphics comes from stuff we type in ourselves - ship or plane velocities, positions, etc. We'd like to be able to easily input data from many other simulations or models and display their output as well. I guess we could write programs to extract the necessary data from the output and format it for our use, but that is rather cumbersome and inelegant. At least at our department level we should be able to define some standards for model outputs so we could use the data directly. If it was really useful, maybe it could become some sort of REAL standard, so we could use any model. Does something like this exist? Is there already a standard format that all models could output so we could handle it easily? We're running UNIX, so a tougher question is what about a communication standard between models that would let the exchange of data happen in real-time, and not just be an offline data conversion problem. As I said, this is rather vague, mainly because we really don't know what we want to do. I can try to clarify if you need more info. Any ideas, thoughts, or pointers to stuff that's already been researched would be most useful. Thanx in advance. -- Randy Schrickel randy@aplcomm.jhuapl.edu Johns Hopkins Applied Physics Lab Laurel, MD 20723 "Life goes on, long after the thrill of living has gone." ------------------------------ Date: Thu, 5 Jul 90 12:50 PDT From: Ethan A. Scarl <eas@atc.boeing.com> Subject: Re: An Irrelevant comment on SIMULATION DIGEST V16 N6 To: fishwick@fish.cis.ufl.edu Cc: ethan@atc.boeing.com >> Date: Tue, 3 Jul 90 14:23:07 EST >> From: Richard E. Nance - SRC <srcnance@popeye.cs.vt.edu> >> To: simulation@bikini.cis.ufl.edu >> Subject: Virtual Reality vs. Simulation >> Cc: fishwick@fish.cis.ufl.edu >> >> >> . . . Nevertheless, >> I offer the observation that all too often, basic principles >> are overlooked that when considered lead to instant insight. >> . . . >> A model is an abstraction of reality, and in the earlier >> philosophical treatment by Churchman (as I recall), reality >> is not a model. . . . That last is NOT a verifiable assertion, although I grant that computational requirements for running this model are imposing. Ethan Scarl ------------------------------ Date: Thu, 5 Jul 90 14:53:47 PDT From: smyers@luna.hac.com (Steven Myers) To: simulation@bikini.cis.ufl.edu Subject: Transporting BONeS databases Newsgroups: comp.simulation In-Reply-To: <23756@uflorida.cis.ufl.EDU> Organization: Hughes Aircraft Co., El Segundo, CA I would like to know if it is possible to share BONeS databases between two seperate BONeS installations. The particular situation I am in is that there have been some BONeS databases developed at a local university (UC Irvine) which I would like to use. To incorporate their database into any of my existing simulations I need to somehow place it into my BONeS installation. I can easily copy the directory containing the database on to my system. The problem is how do I get my copy of BONeS to recognize it. Any help would be appreciated. -- Steven ------------------------------ Date: Fri, 6 Jul 90 15:14:03 EST From: Richard E. Nance - SRC <srcnance@popeye.cs.vt.edu> To: dschwartz@mentor.com Subject: Terminology Cc: simulation@bikini.cis.ufl.edu Check my paper in Communications ACM for terminology which is driven by object oriented principles from Simula 67 and attribute description from Simscript II. The full reference is The Time and State Relationships in Simulation Modeling Communications ACM, v. 24, no. 4, April 1981, pp. 173-179. Careful terminology development derived from a system theoretic characterization is to be found in the two books by Bernard P. Zeigler Theory of Modeling and Simulation John Wiley, 1976 Multifaceted Modeling and Discrete Event Simulation Academic Press, 1984 A standardization project, headed by Oryal Tanir, may have done some work on terminology, but I am not sure. Phone number for Mr. Tanir is (514) 468-5524. Richard E. Nance ------------------------------ Newsgroups: sci.math,sci.math.symbolics,comp.simulation,comp.robotics Path: math.berkeley.edu!desouza From: desouza@bosco.Berkeley.EDU (Paulo de Souza) Subject: Workshop on Geometric Modeling Sender: usenet@agate.Berkeley.EDU (USENET Administrator;;;;ZU44) Reply-To: geow%lncc.BITNET@jade.Berkeley.EDU Organization: U.C. Berkeley Date: Fri, 6 Jul 90 21:49:47 GMT Apparently-To: comp-simulation@ucbvax.berkeley.edu Workshop on Geometric Modeling IMPA - Rio de Janeiro January 9-11, 1991 MAIN TOPICS - Parametric Curves and Surfaces - Simplicial and Algebraic Methods in Geometric Modeling - Solid Modeling - Physically-Based Models - Modeling Systems and Software - Contributions on other aspects of Geometric Modeling are also welcome. INVITED SPEAKERS The following researchers have already announced their participation: - E. Allgower (Colorado State University) - B. Barsky (University of California, Berkeley) - G. Farin (Arizona State University) - R. Farouki (IBM T. J. Watson Research Center) - M. Gattass (PUC-Rio) - D. Gossard (MIT) - C. Hoffman (Purdue University) - M. M\"antyl\"a (Helsinki University of Technology) - A. Requicha (University of Southern California) - D. Terzopoulos (University of Toronto and Schlumberger) GENERAL INFORMATION The program of the workshop includes tutorial lectures by the invited speakers and sessions for contributed papers. During the week immediately following the workshop (January 14-18, 1991) short courses and more specialized lectures will be offered by some of the invited speakers. Those interested in presenting papers should send a typed summary (no more than 4 double-spaced pages) to the Organizing Committee before November 1st, 1990. Oral presentation of such papers should last no more than 20 minutes. STEERING COMMITTEE Elon Lages Lima (IMPA) Jacob Palis (IMPA) Danillo L. Pedreira (IBM of Brazil) Jose' Paulo Schiffini (IBM of Brazil) @ITEM = ORGANIZING COMMITTEE Paulo C. P. Carvalho (IMPA) Jonas de Miranda Gomes (IMPA) Roberto Kopp (IBM of Brazil) Luiz Fernando Martha (PUC-RJ) Geovan Tavares (PUC-RJ) Demetri Terzopoulos (University of Toronto & Schlumberger} For further information, write to: WORKSHOP ON GEOMETRIC MODELING IMPA Estrada D. Castorina 110 PHONE: (55)(21) 294-9032 22460 Rio de Janeiro, RJ FAX: (55)(21) 512-4115 Brazil E-MAIL: geow@LNCC.bitnet (if you request information by e-mail, please include your regular mail address, so that we will be able to send you printed material.) ------------------------------ END OF SIMULATION DIGEST ************************