Index of /graphics/hpgl2ps
There are two filters in this package which are based on the Roland
plotter command set.
1. DXY: A simple command set which is used with all DXY plotters
2. RD-GL: This command set is a superset of the HP (Hewlet Packard)
Not all the commands of DXY or RD-GL (HPGL) are implemented (approx 95%
are) and those commands that are not are skipped and a warning given.
It is very easy to add to this filter if a particular unimplemented
command is desired.
If you wish to implement a command go to the relevant portion in the
command switch "dxycom.c" or "hpglcom.c" and call an appropriate user
written procedure. (You will need a good knowledge of writing
The filters use the the procedure "getopt" which is used to interpret
command line options and arguments and is normally available on 4.3 bsd
and Sys V Unix. For those sites running 4.1 or 4.2 it may be available
as a local library and must be written into the Makefile.
IF YOU DONT HAVE GETOPT YOU WILL HAVE REWRITE THE CODE THAT INTERPRETS
COMMAND LINE OPTIONS AND ARGUMENTS.
NOTE 1: The method of writing text is not fully compatible with HPGL
and will be changed at a later date.
NOTE 2: The PostScript macros are written into a C procedure to allow
each filter to be a single stand alone program. These macros can easily
be incorporated into other filter programs.
I have written some test procedures for the testing of each filter they
are "test1.hpgl" for hpgl2ps and "test1.dxy" for dxy2ps.