Outputting plot data to stdout

[maasha]

Hello

I would like this script to output nice ASCII formatted plot data via the 'dumb' terminal to STDOUT, but I can't find a way? In fact, it could also be nice to allow output of raw PNG, PS and PDF data to STDOUT.

#!/usr/bin/env ruby

require 'gnuplot'
require 'pp'

# options = {
# terminal: "png",
# title: "Title",
# xlabel: "X-axis",
# ylabel: "Y-axis",
# data_out: "foo.png"
# }

options = {
 terminal: "dumb",
 title: "Title",
 xlabel: "X-axis",
 ylabel: "Y-axis"
}

x = [0, 1, 2, 3]
y = [4, 5, 6, 7]

Gnuplot.open do |gp|
 Gnuplot::Plot.new(gp) do |plot|
 plot.terminal options[:terminal]
 plot.title options[:title]
 plot.xlabel options[:xlabel]
 plot.ylabel options[:ylabel]
 plot.output options[:data_out] if options[:data_out]
 plot.output options[:data_out] if options[:data_out]
 plot.logscale "y" if options[:logscale_y]
 plot.xrange "[#{x.min - 1}:#{x.max + 1}]"
 plot.style "fill solid 0.5 border"
 plot.xtics "out"
 plot.ytics "out"

 plot.data << Gnuplot::DataSet.new([x, y]) do |ds|
 ds.with = "boxes"
 ds.notitle
 end
 end
end