RN-4



                         VAX DIGS INSTALLATION GUIDE AND RELEASE NOTES - RN-4

                                         Ben Burch, A. Kreymer

                                             May 18, 1985


                  DIGS is a device independant graphics facility developed by, and in
                  wide  use  at,  Fermilab.   This  document  describes  the  VAX/VMS
                  installation procedure and lists restrictions  and  bugs  known  at
                  time of release.







                  SYSTEM SUPPORTED: VAX/VMS 3.5 or higher
                  SOFTWARE VERSION: VAX DIGS V3.00

                  KEYWORDS: GRAPHICS, DIGS, VMS
          VAX DIGS INSTALLATION GUIDE AND RELEASE NOTES                   Page 2


                                             CONTENTS






                                        _____ __ ________
                                        Table of Contents


          CHAPTER 1       INSTALLATION GUIDE

                  1.1     CONTENTS . . . . . . . . . . . . . . . . . . . . . 1-1
                  1.2     DIRECTORY STRUCTURE  . . . . . . . . . . . . . . . 1-1
                  1.3     INSTALLATION PROCEDURE . . . . . . . . . . . . . . 1-1


          CHAPTER 2       RELEASE NOTES

                  2.1     NON-ESSENTIAL FILES  . . . . . . . . . . . . . . . 2-1
                  2.2     PREVU CONTROL  . . . . . . . . . . . . . . . . . . 2-1












                                           CHAPTER 1

                                      INSTALLATION GUIDE



          1.1  CONTENTS

          The DIGS distribution kit consists of one volume, either magnetic  tape  or
          mountable  disk,  labeled  DIGS.  This volume contains a single BACKUP save
          set DIGS.BCK, which contains all the distribution files from  the  Fermilab
          LIB:[LIB.DIGS]  directories.  The LIB:[LIB.DIGS]EXPORT procedure is used to
          generate this distribution save-set.



          1.2  DIRECTORY STRUCTURE

          The DIGS support files are located under the FNAL::LIB:[LIB.DIGS] directory
          in  the  Fermilab  Central  Computing  Facility  VAX/VMS  system.  The DIGS
          package occupies several subdirectories of this root directory,  as  listed
          below.   If  you are installing DIGS on a system where [LIB.DIGS] cannot be
          created, you may place the files under  any  other  appropriate  directory;
          DIGS  maintenance  procedures  do  not  depend  on  the  name  of this root
          directory.

                [DIGS]            GRALIB library, PREVU and PRINTPP procedures
                [DIGS.DOC]        Users Guide and Installation Guide
                [DIGS.MAINT]      Program maintenance procedures
                [DIGS.PP]         Source code for graphics processors
                [DIGS.SOURCE]     Source code for all programs



          1.3  INSTALLATION PROCEDURE

          Create a directory under LIB:[LIB.DIGS] to hold the new  version  of  DIGS.
          The  directory  name  should  reflect the release of DIGS being copied; for
          example, DIGS300












                                           CHAPTER 2

                                         RELEASE NOTES



          2.1  NON-ESSENTIAL FILES

          All files in the [DIGS.*] subdirectories may be deleted  without  affecting
          the usage of the DIGS package.  This will save approximately 1200 blocks of
          disk space.



          2.2  PREVU CONTROL

          The command parser for PREVU and the other post processor  PRINTPP,  treats
          single  blanks as significant separators.  The Cyber version of DIGS treats
          multiple blanks as a single separator.  The VAX version may be modified  to
          conform with this usage in a future maintenance release.