hp2xx reads HPGL ASCII source files,  interprets  them,  and
converts them into either another vector-oriented  format or
one of  several  rasterfile  formats.  Currently,  its  HPGL
parser recognizes a subset of the HP 7550A command set. Some
high-level  functions  like  filled  polygons  are  missing.
Also,  only  the  basic  fixed character set 0 is supported.
Beside these limitations, hp2xx has proven to work with many
HP-GL sources without any trouble.

In addition, hp2xx includes an X11 previewer for HPGL files.

Supported vector formats are:  TeX/Metafont, emTex-specials,
TeX/epic-Macros,  and -I PostScript.

Supported raster formats are: HP-PCL, PCX, PIC,  IMG,
PBM,  and previews.  However, generation of other formats is
made easy for programmers because of hp2xx's modular  struc-
ture.