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lib/Graphics/GnuplotIF.pm  view on Meta::CPAN

  my  $plot3  = GnuplotIF;                      # new plot object

  my    @xyz    = (                             # 2-D-matrix, z-values
    [0,  1,  4,  9],
    [1,  2,  6, 15],
    [4,  6, 12, 27],
    [9, 15, 27, 54],
  );

  $plot3->gnuplot_cmd( "set grid" );            # send a gnuplot command
  $plot3->gnuplot_set_plot_titles("surface");   # set legend
  $plot3->gnuplot_plot_3d( \@xyz );             # start 3-D-plot
  $plot3->gnuplot_pause( );                     # hit RETURN to continue

=head1 DESCRIPTION

Graphics::GnuplotIF is a simple and easy to use dynamic Perl interface to
B<gnuplot>.  B<gnuplot> is a freely available, command-driven graphical display
tool for Unix.  It compiles and works quite well on a number of Unix flavours
as well as other operating systems, including Windows with C<gnuplot.exe>.

lib/Graphics/GnuplotIF.pm  view on Meta::CPAN

A few named arguments can be passed as key - value  pairs (here shown with
their default values):

  program      => 'gnuplot' # fully qualified name of the Gnuplot executable
  style        => 'lines',  # one of the gnuplot line styles (see below)
  title        => '',       # string
  xlabel       => 'x',      # string
  ylabel       => 'y',      # string
  xrange       => [],       # array reference; autoscaling, if empty
  xrange       => [],       # array reference; autoscaling, if empty
  plot_titles  => [],       # array of strings; titles used in the legend
  scriptfile   => '',       # write all plot commands to the specified file
  plot_also    => 0,        # write all plot commands to the specified file,
                            # in addition show the plots
  persist      => 0,        # let plot windows survive after gnuplot exits
                            # 0 : close / 1 : survive
  objectname   => '',       # an optional name for the object
  silent_pause => 1,        # 0 suppress message from gnuplot_pause()
  no_error_log => 0,        # suppress ".gnuplot.${$}.${object_number}.stderr.log" file

These attributes are stored in each object.