I'm a bit new to ruby, rails and gnuplot. I'm wondering if there is any documentation on which methods are available for the classes in the Gnuplot module for Ruby.
For instance, based on example code found on internet, I can produce a plot with the following code:
Gnuplot.open do |gp|
Gnuplot::Plot.new( gp ) do |plot|
plot.terminal 'png xddddff'
plot.output data_img_file
plot.xdata 'time'
plot.timefmt '"%Y-%m-%d %H:%M:%S"'
plot.xlabel "time"
plot.ylabel "spread"
plot.data << Gnuplot::DataSet.new( [spread_time, spread_value ] ) do |ds|
ds.using = "1:3"
ds.with = "lines"
ds.linewidth = 2
end
end
Now I want for instance to change color on the line, and I'm guessing it is a DataSet method, something like
ds.linecolor = "yellow"
but I'm unsuccessfull in guessing. Can I find a list of methods somewhere? Or can they maybe be derived from the gnuplot documentation in some unambiguous way?
Maybe the wrong forum for this question, but, is gnuplot maybe the wrong tool to go for (doesn't seem to be a lot of activity)? Is there a 'hotter' plotting tool for ruby?
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