Node: Global Variables of Significance, Next: Debugging Parameters, Previous: Plots for Publications, Up: Usage
BAD_SIGNAL
The module gnuplot_module_data
defines an integer named BAD_SIGNAL
that denotes certain error conditions on return from many of the functions in the library. To do error checking in your code, use
the module's definition of this integer constant.
VALIDPLOTSTYLE
The module gnuplot_module_data
defines a character(len=PLOTSTYLELENGTH)
1 array containing currently supported plotting styles. These (as of ver. 0.2.2) include : lines
, points
, linespoints
, impulses
, dots
, steps
, errorbars
, boxes
, boxerrorbars
, financebars
, candlesticks
, vector
, and pm3d
.
GNUPLOT_EXECUTABLE
The value of this variable determines the name of the gnuplot executable. The default value set in the gnuplot_module_data
to gnuplot
. This value should be adequate for most standard installations, but in case someone renamed yours (and you cannot or will not put a symlink named gnuplot
to the actual executable), you may change this parameter definition, and reinstall your library.
ACKTAG
This parameter is set to 1024
. You need pay attention to this only if you are using a ridiculously large number of gnuplot tags and somehow get into conflict. This is unlikely, but I mention this for completeness.
GP_MAX_TMP_FILES
This is a parameter that sets the maximum number of temporary files that may be open at any given time. In case of real time plotting, this might pose a constraint. In that case, consider using the routine gnuplot_resetsession
gnuplot-resetsession.
GP_CMD_SIZE
The maximum length of a gnuplot command is determined by :
length=min(GP_CMD_SIZE
,pipebuffersize)
where pipebuffersize is determined by the C runtime library / operating system.