HP2XX, A HP-GL Converter
2.9 Misc. options
hp2xx features an on-line options summary. Invoking hp2xx
with option `-H', or with any illegal option or without any
parameter, will display about 2 pages of text. (Note: I'd have preferred
option `-h' for on-line help, but this option is needed by the
indispensable height parameter.)
The list of supported output files (displayed for the `-m' parameter)
shown in the help text always corresponds to the selection actually
compiled into that particular executable copy of hp2xx (which may
vary according to licensing considerations, local availability of third-party
libraries, or preferences of whoever built it).
During operation, hp2xx outputs various information about the current
HP-GL file and about hp2xx's actions. As usual, all this goes to
stderr. You can re-direct these diagnostics into a file even without
any help from a UNIX shell by specifying a log file using option
`-l logfile', or you may switch off diagnostics completely
with option `-q' (`quiet' mode). NOTE: Using both options
as in `-q -l logfile' is of no use as it will result in an
empty logfile.
Finally, there is a simple way to rotate whole pictures:
Option `-r angle' rotates the picture counter-clockwise by
the supplied angle (given in degrees). E.g.,
will show the picture rotated by 90 degrees, letting vectors originally
pointing left-to-right now point botttom-to-top. This may be handy e.g. for
printing in landscape format.
NOTE: The limiting rectangle supplied by `-hw' is not affected by
`-r', so in order to obtain e.g. a full-page landscape picture on an
A4 page, issue a command similar to:
| | hp2xx -m pcl -d 150 -r90 -h270 -w160 landscape.hp
|
