gnuplot_open_file — Open a gnuplot file for visualization of images and control values.
gnuplot_open_file is obsolete and is only provided for
reasons of backward compatibility.
gnuplot_open_file( : : FileName : GnuplotFileID)
gnuplot_open_file allows the output of images and
control values in a format which can be later processed by gnuplot.
The parameter FileName determines the base-name of the
files to be created by calls to gnuplot_plot_image.
gnuplot_open_file generates a gnuplot control file with
the name <Filename>.gp, in which
the respective plot commands are written. Each image plotted by
gnuplot_plot_image (or control values plotted by
gnuplot_plot_ctrl) creates a data file with the name
Filename.dat.<Number>,
where Number is the number of the plot in the current sequence. The
generated control file can later be edited to create the desired
effect. After the last plot gnuplot_close has to be
called in order to close all open files. The corresponding
identifier for the gnuplot output stream is returned in
GnuplotFileID.
This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.
FileName (input_control) filename.write → (string)
Base name for control and data files.
File extension:
.gp
GnuplotFileID (output_control) gnuplot → (handle)
Identifier for the gnuplot output stream.
gnuplot_open_file returns the value 2 (
H_MSG_TRUE)
if the control
file could be opened. Otherwise, an exception is raised.
gnuplot_plot_image,
gnuplot_close
gnuplot_open_pipe,
gnuplot_close,
gnuplot_plot_image
Foundation