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$LOAD_PATH.unshift(File.expand_path('../../lib', __FILE__))
require "gnuplot"
# See sin_wave.rb first
Gnuplot.open do |gp|
Gnuplot::Plot.new( gp ) do |plot|
# The following lines allow outputting the graph to an image file.
# The first set the kind of image that you want, while the second
# redirects the output to a given file.
#
# Typical terminals: gif, png, postscript, latex, texdraw
#
# See http://mibai.tec.u-ryukyu.ac.jp/~oshiro/Doc/gnuplot_primer/gptermcmp.html
# for a list of recognized terminals.
#
plot.terminal "gif"
plot.output File.expand_path("../sin_wave.gif", __FILE__)
# see sin_wave.rb
plot.xrange "[-10:10]"
plot.title "Sin Wave Example"
plot.ylabel "sin(x)"
plot.xlabel "x"
plot.data << Gnuplot::DataSet.new( "sin(x)" ) do |ds|
ds.with = "lines"
ds.linewidth = 4
end
end
end
puts 'created sin_wave.gif'
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