DECUS Heritage
Version: V1.0, October 1986
Submitted By: Massimo Boano
Operating System: VAX/VMS V4.4
Source Language: VAX FORTRAN, C
Keywords: ReGIS
Software Requirements: HP-ISPP and/or DEC/GKS
Hardware Requirements: LVP-16 or equivalent
Memory Requirements: 120KB
Restrictions: Tested for DECgraph, not for DECslide. (Treats only ReGIS primitives used by DECgraph.) Only executable versions of LEX and YACC are included.
Abstract: This program translates the ReGIS output of VAX-11/DECgraph into either standard GKS primitives or HP-ISPP commands thus permitting DECgraph to communicate either with GKS workstations or with the Digital Equipment Corporation plotter LVP-16 (equivalent to HP-7475A or HP-7550A). Since the HP-7550A can be configured as a GKS workstation, the output flow can pass through GKS to this plotter, yielding greater precision but at the expense of longer execution times. Use of this program requires the presence of the HP-ISPP library or the DEC/GKS system.
Last Update: Thu Jan 11 18:26:42 1996
Submitted By: Massimo Boano
Operating System: VAX/VMS V4.4
Source Language: VAX FORTRAN, C
Keywords: ReGIS
Software Requirements: HP-ISPP and/or DEC/GKS
Hardware Requirements: LVP-16 or equivalent
Memory Requirements: 120KB
Restrictions: Tested for DECgraph, not for DECslide. (Treats only ReGIS primitives used by DECgraph.) Only executable versions of LEX and YACC are included.
Abstract: This program translates the ReGIS output of VAX-11/DECgraph into either standard GKS primitives or HP-ISPP commands thus permitting DECgraph to communicate either with GKS workstations or with the Digital Equipment Corporation plotter LVP-16 (equivalent to HP-7475A or HP-7550A). Since the HP-7550A can be configured as a GKS workstation, the output flow can pass through GKS to this plotter, yielding greater precision but at the expense of longer execution times. Use of this program requires the presence of the HP-ISPP library or the DEC/GKS system.
This program has been realized at 'CENTRO RICERCHE FIAT (CED)', Orbassano (Torino), Italy.
ReGIS code is processed by a bottom-up parser, implemented using the LEX and YACC tools in the standard manner using the C language. (For information about LEX and YACC, see the user's manual). A virtual screen, conceived as a bidimensional array, is implemented to simulate the generation of the graphic result at a logical level.
The program is distributed as a principal directory and the subdirectories: GKS.DIR, HP.DIR and EXAMPLES.DIR.
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Last Update: Thu Jan 11 18:26:42 1996