
		   Welcome to the International AVS Center

YOU MUST DOWNLOAD AND READ THE AVS_LICENSE FILE BEFORE MAKING USE OF THIS
ANONYMOUS FTP SITE OR ANY OF THE INTERNATIONAL AVS CENTER EMAIL FACILITIES!

THIS MAY BE OBTAINED VIA ANONYMOUS FTP FROM:

		   avs.ncsc.org(128.109.178.23):AVS_LICENSE

****************************************************************************

		   TABLE OF CONTENTS
		   -----------------

	International AVS Center Contact Info

	International AVS Center Entered Its 4th Year At NCSC October 1, 1994

	Questions and Answers

	Internet News Group

	AVS Magazine

	International AVS Users Group

	International AVS Users Group Conference

        Module Submission Contest

	Getting Modules

	Anonymous ftp

	Email Facilities

	How to submit modules
		Standard ftp Submission
		Email Submission
		Batch Tape Submission

	A Copy of the Frequently Asked Questions (FAQ) File

****************************************************************************

                   INTERNATIONAL AVS CENTER CONTACT INFO:
                   -------------------------------------

		   Chuck Mosher, IAC Program Director
		   Suresh Balu
		   Michael King

                   International AVS Center
                   North Carolina Supercomputing Center
                   3021 Cornwallis Road
                   Research Triangle Park, NC 27709

		   Please send articles and slides for future 
		   issues of AVS Network News, our quarterly
		   magazine featuring articles from AVS users
		   worldwide.

avs95@ncsc.org     email here for info on the AVS '95 conference
                   to be held in Boston, Mass., on April 19-21, 1995.

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest version of this file

avs@ncsc.org	   email questions to IAC staff here.  Messages
		   will be routed to all of us and answered by
		   at least one of us.

avsorder@ncsc.org  use this email address to order AVS module source code
		   if you do not have ftp access.  These messages are
		   sent through an automated script - please see 
		   the section "EMAIL FACILITIES" below for further 
		   info on this.

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
		   (this is IP number 128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

WHAT_IS_WAIS	   Check these files for information on two useful
WHAT_IS_GOPHER     tools for perusing our anonymous ftp site.  These
		   can be obtained via anonymous ftp (of course!) from
		   the directory avs.ncsc.org:avs_readme

info@avs.com	   email here if you are interested in purchasing AVS.
                   This will go to AVS Inc. in Waltham, Massachusetts.
		   The IAC does NOT sell AVS, we give away modules.

****************************************************************************

			  INTERNATIONAL AVS CENTER
			ENTERED ITS 4TH YEAR AT NCSC
			    OCTOBER 1, 1994


  On October 1, 1991 the AVS Consortium announced the opening 
of the International AVS Center (IAC) at North Carolina 
Supercomputing Center, a division of MCNC,  in Research 
Triangle Park, North Carolina.  The AVS Consortium is made up 
of AVS vendors who fund and provide direction for the 
International AVS Center. The vendors are Advanced Visual 
Systems Inc., Digital Equipment Corporation, IBM, Hewlett 
Packard Company, Kubota Graphics Technology, Sun Microsystems
Inc., and Fujitsu.

  The IAC became fully functional on January 1, 1992.  One of 
the IAC's goals was to provide ftp and email access to public 
domain modules.  There are over 600 hundred modules 
currently available and more will be added daily.  Another goal 
was to construct a porting facility, which was recently 
completed.  Each Consortium platform has the modules ported 
to it, and made available free via anonymous ftp.  Modules 
are available for IBM, HP, Sun, and Kubota, platforms.

****************************************************************************

	        	     QUESTIONS AND ANSWERS

    If you ever have any questions,  please forward them to avs@ncsc.org.
The staff of the International AVS Center is here to support the AVS user
community as best we can.  

****************************************************************************

                              INTERNET NEWS GROUP

    AVS users should also be aware of the Internet news group 
comp.graphics.avs .  This news group provides a forum for general 
collaboration on all AVS topics between the entire AVS user community.

****************************************************************************

                                 AVS MAGAZINE

    The International AVS Center is publishing a quarterly magazine titled "AVS
Network News." This magazine discusses AVS related issues, has user articles, 
general information, etc.  These can be ordered by  joining the User Group -
see below.

    Please submit articles and accompanying slides for future publication 
to this address:

        The International AVS Center
        PO Box 12889
        3021 Cornwallis Road
        RTP, NC 27709

****************************************************************************

                         INTERNATIONAL AVS USERS GROUP

     You can join the International AVS Users Group for a yearly fee of
$100.00 which includes subscription to the AVS magazine, the yearly AVS catalog
of modules ( user donated and commercial), a $50.00 reduction on attending the
yearly International AVS Users Group conference and have special rates for
additional services as they become available.  To join, send check or money
order for $100.00 ( add $10.00 if out of continental USA) to:

        The International AVS Center
        PO Box 12889
        3021 Cornwallis Road
        RTP, NC 27709

****************************************************************************

                   INTERNATIONAL AVS USERS GROUP CONFERENCE

    Email to avs95@ncsc.org for info on the AVS '95 conference, which is
to be held in Boston, Mass. on April 19-21, 1995.  Over 70 lectures, 
12 tutorials, 6 workshops, and many exhibits are being planned.

    The 1st Annual International AVS Users Group Conference was held
February 11-13,1992 at the site of the International AVS Center : 
the North Carolina Supercomputing Center, Research Triangle Park, 
North Carolina.  The conference was titled : AVS '92 and was sponsored by the
AVS Consortium : Advanced Visual Systems Inc., CONVEX Computer 
Corporation, Digital Equipment Corporation, IBM, Hewlett Packard Company, 
Kubota Pacific, and Sun Microsystems.

Conference Overview :
	
        First International Users Group Conference
	          February 11 - 13, 1992

	Summary of events:

Keynote address:
	Attentive and Preattentive Processing in Visualization
	Richard Mark Friedhoff, Author of "Visualization:  The
	Second Computer Revolution"

Lectures:
	#1 - Fundamentals of Scientific Visualization by Jim
	Thomas, SIGGRAPH Chair, Battelle Pacific Labs

	#2 - Directions AVS Might Take:  A User Perspective by
	Richard Feldmann, NIH, Division of Computer Research
	and Technology.

	#3 - Tips and Tricks with AVS and Areas that are not
	documented by Larry Gelberg, AVS Inc.

	#4 - The AVS Module Generator by Larry Gelberg, AVS Inc.

	#5 - Future Plans for AVS and the International AVS
	Center by Ray Idaszek, NCSC and Dave Kamins, AVS Inc.

	#6 - Wide Area Information Servers: A Supercomputer on
	Every Desk by Brewster Kahle, Thinking Machines.

	#7 - The AVS Data Viewer by Larry Gelberg, AVS, Inc.

	#8 - The GenTools Distributed Computational-Genetics
	Program Suite by Jesse Driver, University of Texas,
	CHPC, Balcones Research Center.

	#9 - Full Motion Video over ETHERNET in an AVS Environment
	by Dan Winkelstein, MCNC Communications Division.

	#10 - The AVS Animation Application in AVS 3.5 by Ham
	Lord, AVS Inc.

	#11 - Distributed Visualization by Rick Franklin and Wade
	Smith, CONVEX Computer Corporation.

	#12 - Video Production in AVS by John Sheehan, AVS Inc.

	#13 - Overview of Implementing AVS on a Massively
	Parallel Machine by Edward Zyszkowski, Wavetracer Inc.

	#14 - The AVS Geometry Viewer Using AVS 3.5 by Jeff 
	Vroom, AVS Inc.

	#15 - VBASE:  Vector Database in AVS by Dennis Colomb.

	#16 - Chaotic System Tools in AVS by Mike Neacsu, NCSC.

	#17 - The Visualization Revolution by Wes Bethal, 
	Lawrence Berkeley Laboratory.

	#18 - Network Synamation:  An Integrated Environment for
	Distributed Computing by Meng H. Lean, Xerox Corporation,
	Webster Research Center.

Tutorials:

	#1 - Getting Started with AVS and Creating Networks

	#2 - Getting Started with the Geometry Viewer (AVS3.5)

	#3 - The Data Viewer

	#4 - The AVS Animation Application

	#5 - How to Write a Module in C using the Module Generator

Workshops:

	#1 - Chemistry using AVS by Richard Hedges, Polygen/MSI
	and Dave Kamins, AVS Inc.

	#2 - Visualizing Crystals with AVS by Don R. Jones, Erin
	N. Thornton, and Anthony Ness, Battelle Pacific Labs.

	#3 - Animation in AVS by Brian Kaplan, Indiana University
	and Ham Lord, AVS Inc.

	#4 - Imaging and GIS in AVS, Dennis Colomb.

	#5 - Crystal Viewer with AVS by Steve Bong, Crystal Imaging.

	#6 - Maple V Supporting AVS by Benton Leong, Waterloo Maple.

Panels:

	#1 - AVS as an Educational and Instructional Tool by Stephen
	Franklin, University of California, Irvine.

	#2 - AVS Developers and Porters Panel, led by David Bennett,
	International AVS Center and NCSC.

	#3 - Applications Panel led by Dennis Colomb.

	#4 - Virtual Reality by John Sheehan, AVS Inc.

	#5 - Distributed Computing Group led by Ray Idaszak, NCSC.

Videotapes:

	Videotapes of many of the presentations at AVS `92 are
available from the International AVS Center for a small fee.  Please
send your name, address, phone, and FAX to avs@ncsc.org, with
your request for an order form.

****************************************************************************

        MODULE SUBMISSION CONTEST

The International AVS Center's module repository 
has been very successful in its first year.  There 
are now over 600 public domain AVS modules available 
for your scientific visualizatition use!  Thanks to 
all who have so generously shared their work!

To encourage continued submissions, and as a reward
for the modules already contributed, the IAC is
implementing a quarterly contest.  The author of the
"best" module contributed in a quarter will receive
his/her choice of $250 cash (U.S. funds), or $250 
credit towards attendance at AVS '93 ( to be held
May 24-26 in Orlando, Florida ).  Some of the criteria 
considered in a module's evaluation include the module's: 

	1)  Utility 
	2)  Uniqueness
	3)  Popularity 

These are not necessarily all inclusive or in any 
particular order.  The final decision as to who wins
the award will be made by the IAC.

The contest will be for three quarters, October 1, 1992 until
December 31, 1992, January 1, 1993 until March 31, 1993 and
lastly, April 1, 1993 until the AVS '93 conference on May 24, 1993.
Submissions for each quarter must be received before midnight on
the final day (EST).

We have selected a lucky winner for the time preceeding Oct 1, 1992.
For his many module contributions and their usefulness to the AVS community
according to our download statistics, we have selected Wes Bethel
from Lawrence Berkeley Laboratories.  We did not want the donations
for the first year to go unrewarded.  Thanks from the IAC and all 
the AVS User community for your more than many module contributions, 
including the following and more:

	animate_floa
	animate_inte
	animated_str
	plot_xyz
	plot_xyz_col
	read_irregul
	read_uniform
	add_coords_2
	add_coords_3
	add_cps
	byte_image_t
	float_image
	collage
	xform_field
	irreg_2_reg
	new_crop
	persp_field
	vec_mag_2d_v
	new_arbitrar
	bivar
	field_to_con
	scat_2d
	scat_3d
	dump_sunras
	dump_icc
	dump_ps
	image_2_icc
	output_color
	output_8bit
	write_irreg
	write_reg
	hsv_to_rgb
	rgb_to_hsv
	bin_field
	psfilter
	trivar
	LBL_bezier_v
	new_ortho_sl
	write_compressed
	read_compressed
	3D_axis

IAC and MCNC staff and their families are not eligible for the
contest.  Employees and their families from Advanced Visual
Systems, Inc are also not eligible for the contest.  All other
entries will be equally considered.  We are a non-profit organization.

Have fun coding, and thanks again for an extremely
successful first year!

****************************************************************************

		GETTING MODULES

    There are currently two ways to obtain modules:

    	1.	Using standard ftp protocol.
	2.	Using the AVSemail request system

****************************************************************************

                              ANONYMOUS FTP

     The International AVS Center anonymous ftp site is located on the 
Internet at 128.109.178.23 .  If a name server is running, the server 
can be located as avs.ncsc.org .  When connected to the avs server, 
login as anonymous and provide your email address as the password.


WHAT YOU WILL FIND WHEN YOU LOG IN TO THE AVS SITE:

When you login, this is what you see
----------------------------------------------------------------------
AVS_LICENSE     avs_modules/    avs_top10_mods/ dev/            pub/
SUBMIT/         avs_net_news/   avs_user_group/ etc/            sample_data/
avs_archives/   avs_readme/     bin/            newsgroups/     usr/


If you ever wish to submit a module or data, this is where you go
----------------------------------------------------------------------
SUBMIT:
000-README              README                  README_AVS_STARTUP

All files related to avs modules will now be here
----------------------------------------------------------------------
avs_modules:
catalogs/       data_output/    khoros/
data_input/     filters/        mappers/

All files related to cataloging avs modules will now be here
----------------------------------------------------------------------
avs_modules/catalogs:
catalog.dvi     catalog.ps      catalog.txt     module.database

The 10 most popular AVS modules are archived here; 
in both source and binary executable format
---------------------------------------------------------------------- 
avs_top10_mods/*:
000-README              HP10.exe.tar.Z*         README
Convex10.exe.tar.Z*     IBM10.exe.tar.Z*        Sun10.exe.tar.Z*
DEC10.exe.tar.Z*        Kubota10.exe.tar.Z*     Top10.src.tar.Z*

the data input modules...
----------------------------------------------------------------------
avs_modules/data_input:
000-README*             generate_gri/           read_netcdf/
3D_axis/                geometry_sphere/        read_p_2/
BP_Coroutine/           graduate32/             read_pbm_image/
Dials_Contro/           harwell_colo/           read_pcx_image/
Dials_Control/          if_2/                   read_pgm_image/
Edit_String/            lathe/                  read_pic_image/
Extrusion/              lines_to_geom/          read_pict_image/
FITS_read/              load_md/                read_pix_image/
Generate_label/         mandelbrot/             read_pnm_image/
Image_Sequen/           mask_generator/         read_points/
Label_Axis/             menu_example/           read_ras_image/
Life/                   microscope/             read_rectilinear/
Life_WT/                noise_source/           read_rgb_image/
QUAL_field/             phoenics_int/           read_rla_image/
RADM_Credits/           plate/                  read_rle_image/
READ_ANY_IMAGE/         plato_super/            read_rpbm_image/
RdUcdAnim/              plot_xyz/               read_rpgm_image/
Read_DXF/               plot_xyz_col/           read_rpnm_image/
Read_Hologram/          readFLOW3D/             read_rppm_image/
Tick_Marks/             read_16_bit/            read_semper/
Vernier_Dial/           read_Dore_im/           read_shak/
animate_file/           read_FLOW3D/            read_sunras/
animate_floa/           read_HDF_SDS/           read_synu_image/
animate_inte/           read_abekas/            read_tiff/
animated_boolean/       read_blokjes/           read_tiff_image/
animated_str/           read_compressed/        read_ucd_points/
animated_track/         read_dyna3d/            read_uniform/
awais/                  read_eps_image/         read_xbm_image/
color_cube/             read_gif/               read_xwd_image/
curdle/                 read_gif2/              shaker/
cylinders/              read_gif_image/         sphere_to_geom/
endif/                  read_hdf_image/         string_list/
fast_animate/           read_icon_image/        strip_chart/
file_to_field/          read_iff_image/         teapot/
fractal_3d_f/           read_irregul/           track_cursor/
fractal_field/          read_jpeg/              tree/
gaussian_field/         read_mpnt_image/        waves_demo/

the data output modules...
----------------------------------------------------------------------
avs_modules/data_output:
000-README*             print_xgeom/            write_pcx_image/
HdB1/                   psfilter/               write_pgm_image/
Record_Anima/           read_compres/           write_pic_image/
WRITE_ANY_IMAGE/        statistics/             write_pict_image/
WrUcdAnim/              volume_stati/           write_pix_image/
continuous_s/           write_A60_yu/           write_pnm_image/
display_tracker/        write_Dore_i/           write_ps_image/
dump_icc/               write_KSWAD/            write_ras_image/
dump_ps/                write_abekas/           write_rectilinea/
dump_sunras/            write_compressed/       write_reg/
field_info/             write_eps_image/        write_rgb_image/
fix_points/             write_g_2/              write_rla_image/
image_2_icc/            write_gif_image/        write_rle_image/
object_opera/           write_hdf_image/        write_rpbm_image/
output_8bit/            write_icon_image/       write_rpgm_image/
output_a60/             write_iff_image/        write_rpnm_image/
output_color/           write_irreg/            write_rppm_image/
point_sample/           write_jpeg/             write_synu_image/
print_iv_pick/          write_mpnt_image/       write_tiff_image/
print_verts/            write_p_2/              write_xbm_image/
print_xfrm/             write_pbm_image/        write_xwd_image/

the filter modules...
----------------------------------------------------------------------
avs_modules/filters:
000-README*             contour/                matte_3x3/
4D_to_3D_Sli/           contour_perc/           matte_sample/
Color_Legend/           delay/                  min_max_fiel/
Cylinder/               dilate/                 my_mirror/
Extract_label/          draw_pixel/             new_crop/
Geom_Duplicate/         erode/                  opening/
Geos_Image/             excavate/               panel_pan/
IMAGE_WINDOW/           fft2d/                  pencil_sketc/
Int_to_string/          field_2D_to_3D/         persp_field/
Iterate/                field_conver/           remap_field/
Nvect_to_2d/            field_scatte/           rgb_to_cmyk/
Quantize_Image/         field_to_irr/           rgb_to_hsv/
SIDE_BY_SIDE/           field_to_rec/           scatter_to_spars/
Shadow/                 field_to_uni/           set_alpha/
Sobel_operat/           fill/                   set_extents/
Sphere/                 float_image/            stick/
Stepper/                glow_white/             strip_cfd/
X_ray/                  gradual_mix/            super_sample/
add_coords_2/           grey_scales/            transform_po/
add_coords_3/           grid_scale/             transpose_coords/
add_cps/                hit_lumin_mi/           ucd_minmax/
adjust_rgb/             hsv_to_rgb/             ucd_particle/
alpha_mix/              ifft2d/                 un_jag/
arithmetic_2/           image_flip/             uniform_to_i/
byte_image_t/           image_rotate/           vec2_to_vec3/
closing/                image_tile/             vec_mag_2d_v/
collage/                interp_cmap/            vector_field/
combine/                irreg_2_reg/            xform_field/
compute_shade/          log_field/              y_join/
cone/                   lumin_mix/

the avs-khoros modules...
----------------------------------------------------------------------
avs_modules/khoros:
arith_binary/   filter_1Dfreq/  info/           no_format/      subregion/
arith_logical/  filter_1Dtime/  input_create1D/ output_dither/  surface/
arith_unary/    filter_2Dfreq/  input_create2D/ output_print/   transform1D/
classify/       filter_2Dspatl/ lib/            remote_gis/     transform2D/
convert_color/  filter_morph/   linearop1D/     segment/        vector/
convert_data/   geomanip/       matrix_algebra/ spectest1D/     warp/
feature/        histogram/      modify_seq1D/   standard/

the khoros libraries required to compile the avs-khoros modules...
----------------------------------------------------------------------
avs_modules/khoros/lib:
Convex/         HP/             Kubota/         Wavetracer/
DEC/            IBM/            Sun/

the mapper modules...
----------------------------------------------------------------------
avs_modules/mappers:
000-README*             field_o_matic/          scatter_arrows/
3D_axis/                field_to_con/           scatter_bounds/
Colored_bounds/         grid_mesh/              scatter_cubes/
Field_grid/             interpolating_sl/       show_flow/
Keyframe_Ani/           line_1D/                sphere/
LBL_bezier_v/           line_contour/           surface_mesh/
Title/                  loop_objects/           surface_web/
UCD_grid/               mesh_axis/              symmetrize/
VIEW_SHARE/             mesh_slicer/            texture_mesh/
add_polar_2D/           mesh_with_base/         trivar/
area/                   new_abuffer/            ucd_cell_arrows/
bin_field/              new_arbitrar/           ucd_cell_cones/
bivar/                  new_bubbleviz/          ucd_cell_geometr/
city_scape/             new_ortho_sl/           ucd_to_prim/
color_legend/           ov_slicer/              volume_bound/
color_ov_slicer/        probe_path/             waffle/
color_tile/             scat_2d/                wire_bender/
contour_field/          scat_3d/
contour_to_g/           scat_bub/

the comp.graphics.avs archive
----------------------------------------------------------------------
newsgroups/comp.graphics.avs:
000-README      Jul_92          May_92
Aug_92          Jun_92          Sep_92

various readme files related to iac activities
----------------------------------------------------------------------
avs_readme:
AVS             FAQ             WHAT_IS_AVS	WHAT_IS_WAIS
AVS_README      IAC_SURVEY      WHAT_IS_GOPHER     

Please fill out a copy of the IAC_SURVEY and email it to us at
avs@ncsc.org, so we can better serve the Scientific Visualization
community.

the avs user group registration form
----------------------------------------------------------------------
avs_user_group:
AVS_USER_REG

sample data sets
----------------------------------------------------------------------
sample_data:
VolVis92/       avs_data/

sample data for the 1992 Boston Workshop on Volume Visualization
----------------------------------------------------------------------
sample_data/VolVis92:
000-README              basin/                  shuttle/
README.VOLVIS92         c60/                    troposphere/
SUMMARY_9_13_92         canine-bioelectic/
accretion_disk/         radm/

sample data submitted in correlation with avs modules
----------------------------------------------------------------------
sample_data/avs_data:
Chaney/         Lobster/        TIFF/           Venus/          map_data/
Elevation/      Piston/         US_EPA_RADM/    Vortex/         world/

     THE INTERNATIONAL AVS CENTER GIVES NO WARRANTY, EXPRESSED OR
IMPLIED, FOR ANY SOFTWARE AND/OR DOCUMENTATION PROVIDED, INCLUDING,
WITHOUT LIMITATION, WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.

     avs_arhives contains compressed tar archives of the entire ftp
site.   It was approximately 20MB in size when initially created
(8/11/92), and will continue to grow.  If you want to grab all of the
modules from the ftp site at one time, download these files using binary
ftp.  Then use uncompress and tar to unpack all the files.  Keep in mind 
that after uncompressing, you will be using about 3.5 times the disk space 
as when the file was compressed.  

     AVS is an Archie place holder.

     The AVS_CATALOG provides a complete listing of current module holdings 
at the International AVS Center.  Its general format is as follows:


Name        : animate_file    Version      : 1.000     Mod Number : 1135
Author      : Terry Myerson, International AVS Center (NCSC)
Submitted   : 02/24/92        Last Updated : 02/24/92  Language   : C
Ported to   : DEC Kubota IBM Sun Convex
Description : anim_fname is used to output a series of filenames for input
              into a reader module. The module inputs an integer and a
              filename base, and output a filename in the form "$base.%3d".
              This module is very useful for a series of files containing a
              time series of data.

     AVS_CATALOG, AVS_CATALOG.dvi, and AVS_CATALOG.ps are three versions
of the module catalog maintained at this site.  All three files are 
continuously updated as new modules are added to the ftp site.  The ASCII 
version of the module catalog (AVS_CATALOG) can be retrieved at any time 
by mailing any message to an automatic response script at avsemail@ncsc.org
The AVS_CATALOG.ps and AVS_CATALOG files should be printable on any standard
postscript printing device.  The AVS_CATALOG.dvi file requires a dvi2ps 
utility to be of any use, but provides a much more portable compact format 
for the postscript catalog for those who have this utility available.
NOTE: The AWAIS module, available in the DATA directory on the ftp site,
provides interactive browsing of the module catalog.

     AVS_FLATLINE provides the same information in a format suitable for
some database programs.  The general format for the AVS_FLATLINE file is 
as follows:

animate_file:data_input:anim_fname is used to output a series of filenames for 
input into a reader module. The module inputs an integer and a filename base, 
and output a filename in the form "$base.%3d". This module is very useful for 
a series of files containing a time series of data.:Terry Myerson:International
AVS Center (NCSC):16:C:02/24/92: Kubota Convex DEC IBM Sun:02/24/92:1:1135

     The AVS_LICENSE is a file that provides the conditions under which
modules may be obtained and your agreements to share code with others.  You
must agree to the terms in order to use the International AVS Center repository
and all that it contains.  Its purpose is to ensure the sharing of everything
that has been donated and prohibit misuse of code that has been so generously
donated by others.  If you need a "special" arrangement, you must have a
release in writing from the International AVS Center.  We will contact the
donors and obtain their approval for special cases.  

     You are reading the AVS_README file.

     AVS_USER_REG is a form that can be filled in and sent electronically to
the International AVS Center for registration to various mailing lists,
including AVS User Groups, AVS Special Interest Groups, and a list that
automatically sends you all postings to the comp.graphics.avs newsgroup.
AVS_USER_REG contains detailed instructions on the lists available and where
to send it.

     If you know of anyone, whom does not have news access, they can
download the files in the COMP.GRAPHICS.AVS directory.  These files
are in the standard mailbox format so that anybody can peruse these
files using any mail utility with the -f command.

For example :

  Mail -f May_92

If a "message" in this mailbox is replied to, then a message is sent back
to the poster of the article - but it is not replied to the newsgroup.
The files will be stored in a separate mailbox for each month : May_92 June_92

     The SAMPLE_DATA directory is for data that has no associated
modules.  Many individuals have requested new or interesting sample data
and are also donating it.  It does not fit with the standard module
directories and so has its own directory.

     The FAQ, or Frequently Asked Questions file answers common 
questions about the International AVS Center and AVS in general.

     There are four main directories of modules: DATA, FILTERS, MAPPERS 
and RENDERERS.  These directories correspond to the four columns of modules 
within AVS.

     The SUBMIT directory is for module submissions.  This directory has
write permission and will be explained below in the submission section.
	
     WHAT_IS_AVS is a several page overview of the AVS system.  
 
     WHAT_IS_GOPHER is an overview of the gopher system, and how you
might want to use it to peruse through our ftp site.

     WHAT_IS_WAIS is a several page overview of the Wide Area Information
Server system, and how you might want to use it to peruse through our
anonymous ftp site.

     Your first step, after reading this AVS_README file is to download
the AVS_LICENSE file and read it.  If you have any problem abiding by the
AVS Licensing Agreement, please send email to avs@ncsc.org or US mail to the
International AVS Center, po Box 12889, 3021 Cornwallis road, RTP, NC 27709.
We will try to deal with special circumstances as they arise on a one on one
basis.

USING STANDARD FTP PROTOCOL:

     There are only a few basic commands you will need to move around 
in the AVS directories and download or submit files.  Additional information
is available in your local man pages on ftp.  The first step is to "cd" to
the directory you are interested in such as "cd DATA".  You will receive a
message on how to proceed.  You should then "cd" to the module directory you
want such as "cd abekas".  You should change your settings as follows:  type 
"bin" at the prompt to change to binary mode; type "hash" at the prompt, this 
gives a # sign on your home device that shows you that things are working; type
"prompt" to get multiple files at one time.  There are only a few other 
commands that are general. You should know get and mget.  Typing "get filename" 
at the prompt will download any one file.  Typing "mget filenames" (or with 
wildcards *,?,etc) will get you several files at one time.  If you did not type 
the prompt command you will be asked yes/no for each file.  If you did type 
prompt you will not be prompted, ftp will just continue to download all files 
requested.  The reverse procedure is true when you want to submit modules using 
the put and mput commands ( more on submission later).  
                                            
     In this directory, you will find all of the files for a module.
These include the source code, scripts, networks, helpfiles, and makefiles. 
The Makefiles are named make.platform ( i.e. make.Convex, make.DEC )

     There is another ftp option available for getting a module that
you may find easier.  Suppose you want the module read_tiff, which is
located in the subdirectory DATA/read_tiff.  If you do the following
sequence of steps, you will wind up with a tar file containing all of
read_tiff's files in it:

	ftp avs.ncsc.org
	use anonymous for the userid
	use your userid for the password
	cd DATA
	binary
	get read_tiff.tar
	bye

Then on your local machine, use "tar -xvf read_tiff.tar" to restore
the files from the archive.  This method may take a while due to
the potentially large size of the tar file.  If you use
"get read_tiff.tar.Z" instead, you will get a compressed version of
the tar file, which should come over significantly faster due to
the smaller size.  Then on your local machine, use 
"uncompress read_tiff.tar.Z", followed by "tar -xvf read_tiff.tar"
to restore the files.

****************************************************************************

                               EMAIL FACILITIES

    It was determined that there were many users who did not have ftp
protocol on their system.  For those individuals an email procedure has
been set up.  There are three email addresses associated with the International
AVS Center.  These are avs@ncsc.org for questions/module submission, 
avsemail@ncsc.org for an automated information request, and avsorder@ncsc.org 
for automated module requests.  avsorder and avsemail are both explained below.
                   
   Mailing to avsemail@ncsc.org will automatically retrieve a response which 
includes this AVS_README file and also a current module catalog.

   Mailing to avsorder@ncsc.org will automatically retrieve module source code.
Since some mail handlers have restrictions on the maximum size of 
a mail message, the modules that are requested will arrive in several
messages - one message per file per module.  Some modules that could be 
requested may also not be deliverable by email because of the size of 
individual files in that module.  These cases will be noted in the return 
email you receive.  Phase II will offer you option of receiving these files 
or any others via tape.  Construction is currently underway of porting 
facilities and as soon as hardware is installed, we will update this notice 
and provide instructions on how to request modules, data, etc. via tape.

    Note that you will need to remove the mail header lines after saving the 
files from within your mail system.  The title for each of a module
file's mail message will be of the form <module name>/<file name>, in
order to facilitate easier saving of these files.

HOW TO ORDER:

1.      First, review the modules available in the AVS_CATALOG

2.      Decide which modules you want.  Add a pound sign (#)
	to the beginning of each module number and make sure it is
	on a separate line of its own for each module ordered.

3.      Submit the order form.  The #module_number and name ( the # 
	is necessary in front of each module ordered with no spaces, 
	as #1037 ).

4.	When your order is filled out send it to "avsorder@ncsc.org",
	it will be processed immediately.  DO NOT send orders to 
	avsemail@ncsc.org or avs@ncsc.org.


        SAMPLE ORDER FORM:

*******************************************************************************
        I would like to order the following modules:

#1005 ( these lines are the module numbers)
#1023 ( NOTE that each entry must be on a separate line, this is required)
#1029 
#1130
..............You may order as many modules as you like as long as each is
..............on a separate line.


Thanks
John Doe
Smurfville, USA  (Full name and address is not required, just requested)

*******************************************************************************

        WHAT THIS ORDER FORM DID FOR YOU:
        
The #numbers order modules 1005, 1023 1129 and 1130 from the module list.
Each number told the automatic ordering service what you wanted in addition 
to the module source code.  Everything is automatic.  If you did not receive 
what you ordered, send email to avs@ncsc.org and we will correct the problem 
quickly. 

*******************************************************************************

BATCH TAPE REQUESTS:

	There is a $5.00 dollar shipping and handling fee for tapes ( $10.00
for shipping out of country and no insurance).  If you send your own tape
this is the only cost incurred.  If you wish us to use one of our tapes we
will charge you cost plus 15% for our ordering, stocking, etc costs.  This 
is still less than retail and is designed only as a cost recovery.  We are
not responsible for items damaged in transit.  Exact costs for tapes and 
handling will be determined when hardware is delivered and set up.  We will
post information as soon as it becomes available

*******************************************************************************

HOW TO SUBMIT MODULES:

	Donating a module to the International AVS Center benefits 
the entire AVS user community by facilitating further use of AVS to 
visualize complex scientific phenomena.  Any module that is not 
donated may be rewritten elsewhere - wasting someone's 
valuble time - hindering further development of other module 
capabilities for everyone's benefit.  

	There are three ways to submit modules:

	1.	Standard ftp protocol
	2.	email ( no binaries)
	3.	Sending tapes to:	The International AVS Center
					P.O. Box 12889              
					3021 Cornwallis Road
					RTP, NC 27709  
	
	Several individuals have said they would contribute, but from 
past experience they knew they would be bombarded with questions about the 
code and did not have the time to spend replying to these questions.  If 
you are in this situation, we will put a unique control number in the code 
and the International AVS Center will act as the only contact between you 
and the world.  Many of the questions will be fielded by the AVS staff, 
but if a question cannot be answered internally, you will only be contacted 
by the center and not hundreds of individuals.    
                                                                             

*******************************************************************************

STANDARD FTP SUBMISSION:


	 If you have arrived at this point it is assumed that you know the
ftp site name (avs.ncsc.org).  The IPnumber will be changing shortly as
we move to a larger server, so be prepared for this number to change in the
near future.  We will post it later.

        When you login you will get a banner message that will provide some
basic information.  You will then see the following:

AVS_LICENSE      avs_newsgroup/   dev/             usr/
SUBMIT/          avs_readme/      etc/
avs_archives/    avs_user_group/  pub/
avs_modules/     bin/             sample_data/

	Most of the files and directories have been explained above, except
the SUBMIT directory.  The SUBMIT directory is the only one that has write
permission.  In order to provide a minimum level of security to those who
donate modules, and try to make sure others do not accidentally copy over their
files, and to streamline the process of adding your module to the catalog,
we ask you to follow the following procedures.

	Please prepare your submission to conform to the following guidelines
as closely as you can:
	1.	all C source code should have a .c suffix
	2.	all FORTRAN source code should have a .f suffix
	3.	all C header files should have a .h suffix
	4.	all FORTRAN header files should have a .inc suffix
	5.	provide one file with a .txt suffix for each AVS
		module, in plain text format, which provides complete
		documentation for the module
	6.	provide a sample AVS network file, with a .net suffix
	7.	do not include assembly language code

	When you "cd" to the SUBMIT" directory, a banner message will appear
that will prompt you with instructions.  You will be asked to create a
directory using mkdir as in "mkdir myname".  This directory will be  invisible 
and entry into this directory can only be achieved by typing "cd myname".
When someone else logs in, they will see nothing, unless they know the name and
unique number identifier.  After you "cd" to your new directory you will be able
to donate modules using standard ftp protocol.  Detailed information is 
available in the ftp man pages, but you will only need to know a few basic
commands such as bin, hash, prompt, put and mput. to donate your modules.

	You should create additional directories for each module using "mkdir".
If you are submitting multiple modules, please use "mkdir mynameN", where
N would be a unique number for each module being submitted.
You should type "bin" at the command line to change to binary format, then
type "hash" at the command line to show a # sign on your local machine that 
tells you things are working.  You should then type prompt if you have 
more than one file as this lets you download multiple files at one time
using mput without waiting for the prompt yes/no command.  Then type the
command "put myfile" or "mput myfiles" at the command line and they will
download to the new directory you have created.  We prefer and recommend
that all files submitted are only straight ASCII files, although if your 
files are in tar or tar.Z format, we will accept them.

	If you logout and wish to make a change, you must remember the 
unique name for the invisible directory you were given or else start all
over again.


*******************************************************************************

EMAIL SUBMISSION:

	We will accept email submissions to avs@ncsc.org, but ask you follow
these guidelines.

	Do not include any binaries.  If data files are large, put in uucp
format or provide a smaller data file with a note that larger files are 
available.  We will contact you to try to arrange obtaining these larger
files through other methods.  Please do not send data files over 200K.
Separate all files by a line of at least twenty (20) asterisk marks (*) so 
we can search for these easily.  

	Your first lines should describe the module, the platform it has
been ported to and special notes such as large data size, followed by *'s.


*******************************************************************************


BATCH TAPE SUBMISSION:

	To submit a module via tape, put it onto a tape
using "tar -cvf tapedrive filename[s]".  Label the tape with the
appropriate platform the module runs on (and the platform the tape
was made on, if different), and mail it to us at:

        The International AVS Center
        PO Box 12889
        3021 Cornwallis Road
        RTP, NC 27709

*******************************************************************************


A COPY OF THE FREQUENTLY ASKED QUESTIONS (FAQ) FILE:


       ___________________________________________________________________
                                       FAQ
                        Frequently Asked Questions of the
                            International AVS Center
                      North Carolina Supercomputing Center
       ___________________________________________________________________

	Questions answered in this file :
	---------------------------------

1.	 What is the International AVS Center ?
2.	 Where is the International AVS Center ?
3.	 What is AVS ?
4.	 Where can I get more information on AVS ?
5.	 What are the system requirements to run AVS ?
6.	 How do I download modules from the International AVS Center,
	 or submit modules, or get a list of the currently available
	 modules ?
7.	 When I try to run AVS on a remote machine and display the output
	 on an X server, I get a message saying Client unauthorized to
	 connect to server. How do I fix this ?
8.	 Is there sample AVS data available ?
9.	 When I try to ftp to avs.ncsc.org, I get terminated before I get
	 connected. What am I doing wrong ?
10.	 What is the procedure to add a question to this FAQ file ?
11.	 Why should I submit a module to the International AVS Center ?
12.	 Where can I find more information on AVS in published
	 literature ?
13.	 What is WAIS and how can I use it at the International AVS Center ?
14.      Are there courses being offered on AVS ?


What is the International AVS Center:what_is_iac:
 ___________________________________________________________________ 

1.	 What is the International AVS Center ?

        The International AVS Center serves as a catalyst
for expanding the AVS user base and for increasing AVS
functionality by fostering discipline-specific module
development and new AVS uses.  Located at the North Carolina
Supercomputing Center, the worldwide clearinghouse collects,
ports, and distributes user-contributed, public-domain
modules and acts as liason between users and vendors.
The International AVS Center also publishes a quarterly
magazine called AVS Network News and a yearly module
catalog.  It also hosts the yearly International AVS
User Group conference and coordinates User Group activities.

        The AVS Consortium is made up of seven AVS vendors
who are funding and providing direction for the International
AVS Center.  The seven vendors are Advanced Visual Systems Inc.,
CONVEX Computer Corporation, Digital Equipment Corporation,
IBM, Hewlett Packard Company, Sun Microsystems, and Wavetracer, Inc.
Where is the International AVS Center:where_is_iac:
 ___________________________________________________________________ 

2.	 Where is the International AVS Center ?

        The International AVS Center is located at the
North Carolina Supercomputing Center.  The anonymous ftp
site for the center is located on the internet at avs.ncscs.org
with an IP address of 128.109.178.23 .  The main email alias
for the center is avs@ncsc.org .
What is AVS:what_is_avs:
 ___________________________________________________________________ 

3.	 What is AVS ?

        Using anonymous ftp to avs.ncsc.org, you can then
get the file What_is_AVS.  Take a look at this file
for a good summary of what AVS does.
Where can I get more information on AVS:where_info_avsinc:
 ___________________________________________________________________ 

4.	 Where can I get more information on AVS ?

        If this file and other files available via anonymous
ftp to avs.ncsc.org do not answer your questions, you can
send mail to avs@ncsc.org.  The International AVS Center
will do its best to help you out.  You also may want to
monitor and/or post articles to the Internet newsgroup
comp.graphics.avs, which has an ongoing dialog between
various AVS users.  Or you can contact AVS Inc. directly at:

FOR AVS PRICING OR OTHER SALES SITUATIONS (if you don't have AVS):

        Advanced Visual Systems Inc.
        300 Fifth Ave.
        Waltham, MA  02154
        USA
        Tel:    617-890-4300
        Fax:    617-890-8287
        Email:                  <-  They'll set up a new email address,
                                    we'll update accordingly shortly ...

FOR AVS SUPPORT (if you already have AVS):

        Advanced Visual Systems Inc.
        300 Fifth Ave.
        Waltham, MA  02154
        USA
        Tel:    1-800-428-7001
        Tel:    617-890-4300
        Fax:    617-890-8287
        Email:  support@avs.com

What are the system requirements to run AVS:sys_req:
 ___________________________________________________________________ 

5.	 What are the system requirements to run AVS ?

Numerous people have requested AVS configuration information.
This information changes regularly and you should contact either
AVS Inc at 617-890-4300, your local vendor reps or AVS Inc reps
for additional information.

CONVEX - Available now - CONVEX OSV9.1 or later release, CONVEX
OS Utilities 9.1 or later, CONVEX OS Internet Services V9.1 or
later, IEEE floating point hardware.  Requires approximately
90MB disk space, and a color display device networked to your
CONVEX system supporting X window System Version 11 Release 4
color server, which supports either a PSEUDOCOLOR or TRUECOLOR
visual type, or a Silicon Graphics workstation running IRIX 4.0
or a workstation or terminal with a PEX server.

DEC - Available now - DEC AVS V3.0 generates PEX V4.0 protocol
(when displaying to a PEX V4.0 cpable display server), and is
compatible with ULTRIX V4.2 which includes a PEX V4.0 server.
ULTRIX V4.2A includes a PEX V5.0 server.  For compatiblitiy with
that server, DEC AVS V3.0A has been released.  Note that
PEX V5.0 provides (two pass) transparency.  Also note that
the ULTRIX V4.2A distribution does include a PEX compatibility
kit which is essentially a PEX V4.0 server.  There is no support
for runing both PEX V4.0 and PEX V5.0 servers concurrently.  Only
one such server can be run at any one time.

Hewlett-Packard - Available now - HP 9000 series 700,
CRX graphics (call for information on other graphic configurations),
OS release 8.01 or later ( 'uname -r' to get OS level), Phigs runtime
will be required for systems using H/W rendering, 16 MB memory
minimum, 32 MB recommended, installation uses about 40 MB disk,
CRX will use the S/W renderer ( others will support H/W rendering
when appropriate), monochrome is not supported.

IBM - Available now - RS6000 workstations, models 3xx, 5xx or
7xx, 8-bit Color Graphics Display adapter, High Performance 3D
24-bit Color Graphics Processor with Z buffer option, GTO 3D 24-bit
Graphics adapter with Z buffer (a.k.a. Supergraphics Subsystem),
(call for information on other graphic configurations), AIX release
3.1.5 w/2006 patch tape and APAR#: a19758 (X server), use
command 'lslpp -h bos.obj' which should show release
03.01.0006.0008 as active, use command 'lsdev -C -c adapter' to see
graphics configuration, 16 MB memory minimum, 32 MB
recommended, installation uses about 40 MB disk, hardware
rendering is only on 24-bit Z buffered systems, specify SW
renderer on all systems without 24-bit Z buffering, AIX 3.1.5
X server is limited to 8-bit pseudocolor visuals, images are then dithered.

SUN - Available now - Sun SPARC workstations 1, 1+, 2 supporting
the sun4/sun4c applications architecture, 8-bit frame buffers (GX,
CG3, etc), GS and GT graphics after OpenWindows version 3 is
available from Sun ( first quarter 92), Sun OS 4.1.1 w/ 100299-01
patch or later, use command /usr/etc/showrev to get revision
levels, 8-bit frame buffers require OpenWindows version 2 with
X server installed, 16 MB minimum, 24 or 32 MB recommended,
installation uses about 38 MB disk, strongly recommend
increasing shared memory segment and swap space size per
release notes, 8-bit graphics boards ( GX, CG3, etc) always uses
S/W renderer, H/W rendering systems will use XGL graphics, S/W
render also available

Wavetracer - to provide users with logical and uniform access
to Wavetracer's three-dimensional and massively parallel Data
Transport Computer (DTC) and advanced software tools, AVS modules
are currently being ported to make use of the DTC.  The DTC
is a three dimensional, massively parallel computer.  It has
a 3D computing architecture, high data capacity and bandwidth,
high I/O bandwidth, ultra finegrained parallellism and low cost
of ownership.  It easily connects to a host UNIX workstation
via an industry-standard SCSI interface.  The processing
resources of the DTC are integrated into the host's software
and network environment by multiC, a powerful data-parallel
extension of ANSI C.
How do I download modules from the International AVS Center, or submit modules, or get a list of the currently available modules:how_download:
 ___________________________________________________________________ 

6.	 How do I download modules from the International AVS Center,
	 or submit modules, or get a list of the currently available
	 modules ?

        There is an AVS_README file which should answer
these and many other questions for you.  To obtain a
copy of this file, there are two methods currently
available and a third method under development.  Mail
sent to avsemail@ncsc.org will automatically retrieve
a response which includes the AVS_README file and
also a current module catalog.  Or you can ftp to
avs.ncsc.org, login with anonymous as your userid and
your own userid as the password, and get the AVS_README
file and the AVS_CATALOG file from there.  For those users
without ftp capability, there is a tape ordering system
being developed at the International AVS Center.
When I try to run AVS on a remote machine and display the output on an X server, I get a message saying Client unauthorized to connect to server.  How do I fix this:x_help:
 ___________________________________________________________________ 

7.	 When I try to run AVS on a remote machine and display the output
	 on an X server, I get a message saying Client unauthorized to
	 connect to server. How do I fix this ?

        The xhost command will let your server know its
OK for your remote machine to display there.  In the
file read in when you boot up X (for example, on a Titan
.xsession, on a Sun .xinitrc), add the line:

        xhost <Client1 machine name> <Client2 machine name> ...
Is there sample AVS data available:sample_data:
 ___________________________________________________________________ 

8.	 Is there sample AVS data available ?

        Using anonymous ftp to avs.ncsc.org, you can then
cd to AVS_SAMP_DATA.  This directory is for sample data that
has been donated without any modules.  No tests have been made
on this data, so use it at your own risk.  This is simply to
allow you to get your hands on a variety of different data types
for experimentation purposes.
When I try to ftp to avs.ncsc.org, I get terminated before I get connected.  What am I doing wrong:ftp_help:
 ___________________________________________________________________ 

9.	 When I try to ftp to avs.ncsc.org, I get terminated before I get
	 connected. What am I doing wrong ?

        Possibly your host machine isn't a registered
internet site.  In such a case, the IP address can't be
mapped by our machine into a valid hostname.  Speak to the
person in charge of your network about making sure it is
correctly registered.
What is the procedure to add a question to this FAQ file:add_faq:
 ___________________________________________________________________ 

10.	 What is the procedure to add a question to this FAQ file ?

        Please submit your suggestion for this FAQ file via
email to avs@ncsc.org.  Your question and answer will quite possibly
show up in this file shortly thereafter.
Why should I submit a module to the International AVS Center:why_submit:
 ___________________________________________________________________ 

11.	 Why should I submit a module to the International AVS Center ?

        Donating a module to the International AVS Center benefits
the entire AVS user community by facilitating further use of AVS to
visualize complex scientific phenomena.  Any module that is not
donated may be rewritten elsewhere - wasting someone's
valuble time - hindering further development of other module
capabilities for everyone's benefit.
Where can I find more information on AVS in published literature:references:
 ___________________________________________________________________ 

12.	 Where can I find more information on AVS in published
	 literature ?

Here is a short (no doubt incomplete!) reference list:

Upson, Craig, Thomas Faulhaber, Jr., David Kamins, David Laidlaw,
David Schlegel, Jeffrey Vroom, Robert Gurwitz and Andries van Dam.
"The Application Visualization System:  A Computational Environment
for Scientific Visualization."  IEEE Computer Graphics and Applications
(July 1989), Vol.9, No.4, pp 30-42.

Currington, I., Coutant, M., "AVS - A Flexible Interactive Distributed
Environment for Scientific Visualisation Applications", Second
Eurographics Workshop on Visualization in Scientific Computing, April,
1991

VandeWettering, "The Application Visualization System - AVS 2.0",
PIXEL, July/August, 1990

Garrity, M., "Raytracing Irregular Volume Data", San Diego Workshop
on Volume Visualization, Dec, 1990

Gelberg, L., Kamins, D., Vroom, J., "VEX: A Volume Exploratorium",
Chapel Hill Workshop on Volume Visualization, May 1989

Gelberg, L., et al, "Visualization Techniques for Structured and
Unstructured Scientific Data", Course Notes, SIGGRAPH '90 Course
"State of the Art in Data Visualization"

Mathias, C., "Visualization Techniques Augment Research into Structure
of Adenovirus", Scientific Computing & Automation, April, 1991

Parker, D., Lin, Y., "The Application Visualization System for Finite
Element Analysis", Banff Conference on FEA, May, 1990

Upson, C., "Scientific Visualization Environments for the
Computational Sciences", Proceedings of the 34th IEEE Computer Society
International Conference - Spring, 1989

Craig Upson, "Tools for Creating Visions," UNIX REVIEW,
Vol.8, No.8, pp. 39-47.

Calvert, Brian "Interactive Analysis of Multidimensional Data", Masters Thesis
University of Illinois Department of Computer Science, 1991.
What is WAIS and how can I use it at the International AVS Center:what_is_wais
 ___________________________________________________________________ 

13.	 What is WAIS and how can I use it at the International AVS Center ?

There is now a WAIS (Wide Area Information Servers) server running
at the International AVS Center.  WAIS allows a user to ask
a question to a server, which provides a ranked list of documents
that may help answer that question.  The user can then peruse
through the documents that seem useful.  

All of the .txt files for AVS modules freely available on the 
International AVS Center's anonymous ftp site have been indexed, 
as well as informational files such as AVS_README and FAQ.  
WAIS should prove more and more useful as the AVS module repository
becomes larger.  It provides a convienient interface to large amounts
of data.

For a more thorough discussion of WAIS and how you can use it
to peruse the files at the International AVS Center, please check 
the file WHAT_IS_WAIS on avs.ncsc.org.
*******************************************************************************

14.      Are there courses being offered on AVS ?

        Courses on AVS are currently offered by several organizations:

Advanced Visual Systems, Inc.           (617) 890-4300 Developers Only
Clarity Learning                        (800) 231-0081
North Carolina Supercomputing Center    (919) 248-1100
Scientific Visualization Associates     (508) 371-2923

        These courses may be offered either onsite at your facility
or theirs, depending on the arrangement that is set up.  Please contact
these companies for further information.

