
        ------------------------------------------------------
        README for Cyberware_image to IGES translator - CYGES
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DESCRIPTION
-----------

CYGES V1.0 is a utility for converting a filled range map in Cyberware
format into an IGES file. Given a filled range map and parameters
defining the number of vertices, it produces a list of polylines which are
then input into an IGES translator. The output is an IGES file in
ASCII with a ".igs" extension suitable for input into various programs which
have an IGES interface program.

USER INFORMATION
----------------

CYGES is a command line program which is executed in the following way:

    cyges m n cyberware_image [output filename]

where:

    cyges                 executable program name
    m,n                   number of latitudes, longitudes respectively
    cyberware_image       a filled range map
    [output filename]     optional output filename

If an optional filename is not given, the default output filename
"cy.igs" is used.

Cyges is capable of creating the following IGES entity types:

    106            copious data
    110            line entity
    112            parametric cubic splines

Which entity is created can be controlled through the use of a
configuration file. You must define "CYGES_CFG" in your environment.
It must be the name of an appropriate cyges configuration file. In
UNIX this is accomplished by putting the following line in your .login
file:

    setenv CYGES_CFG "./cyges.cfg"

Where "./cyges.cfg" is the configuration file located in the current
working directory. A configuration file is included with the tape so
if you extracted the entire contents of the tape the file cyges.cfg should
already exist in your current working directory. If you should want to move the
configuration file to another directory, then make sure you change the
pathname of the file in .login. If cyges doesn't find any entries in the file 
cyges.cfg, the default entity type 106 (copious data) is used. The user is 
encouraged to try the other entity types by putting the following line in 
cyges.cfg starting in column one:

IGES_TYPE=110    #for IGES line entity

or

IGES_TYPE=112    #for IGES parametric cubic splines

    
CYGES RELEASE NOTES
-------------------

Version 1.0

    Released for general distribution 18 April 91, Cyberware Labs, Inc.
    Monterey, CA.
