Class GNUPlotter
In: lib/gnu_plotter.rb
Parent: Object

Methods

plot   therm_plot  

Included Modules

Utilities

Constants

FONT = "/Library/Fonts/Arial.ttf"   Default font face.
FONT_SIZE = 28   Default font size.
FS_MIN = 11   Default minimum jitter font size.
FS_MAX = 48   Default maximum jitter font size.
JITTER_MAX = 0.2   Default location jitter max.
JITTER_RANGE = 0.5   Default location jitter if percent differrence less than this value
WIDTH = 800   Default plot width.
HEIGHT = 600   Default plot height.
FILE_NAME = 'plot'   Default file name.
FILE_TYPE = 'png'   Default file type.

Public Class methods

plot(options = {}) {|plot| ...}

Create a GNU plot.

options::font the font to use if not default.

options::font_size the font size to use if not default

options::data the plot data as a value passable to Gnuplot::DataSet.new (e.g. an Array).

options::file_name the file name. Defaults to ‘plot’.

options::file_type the file type. Default to ‘png’.

options::title the graph title.

options::xlabel the x-axis labels.

options::ylabel the y-axis labels.

options::size the size of the graph as a [width, height] array. Defaults to [800, 600]

options::logscale if passed the logscale string. You cannot pass a yrange if a logscale is passed.

options::yrange if passed the y-range as a [min, max] array. You cannot pass a logscale if a yrange is passed.

options::xrange if passed the x-range as a [min, max] array.

options::xtics if passed the xtics as an array of labels.

options::ytics if passed the xtics as an array of labels.

[Source]

    # File lib/gnu_plotter.rb, line 80
80:     def plot(options = {}, &blk)
81:       Gnuplot.open do |gp|
82:         Gnuplot::Plot.new( gp ) do |plot|
83:           plot, data = assign_options(plot, options)
84:           plot.boxwidth 0.5
85:           yield(plot) unless blk.nil?
86:           plot.data << Gnuplot::DataSet.new(data) do |ds|
87:             ds.notitle
88:             ds.with = "boxes fs solid 1"
89:           end
90:         end
91:       end
92:     end
therm_plot(options = {})

Create a thermometer plot.

options:the plot options.

options::data The therm data should be formatted as a set of column arrays. Each column array must be an array of triple the first member being the title to jitter, the second the y-position of that title, and the third the scale size of that title.

[Source]

    # File lib/gnu_plotter.rb, line 33
33:     def therm_plot(options = {})
34:       options[:xtics].push("") if options[:xtics]
35:       data = options[:data]
36:       percents = data.flatten.every(3, 1)
37:       options[:yrange] = [percents.min, percents.max] unless options[:yrange]
38:       options[:data] = Array.new(data.length + 1, 0)
39:       plot(options) do |plot|
40:         count = 0
41:         data.each do |values|
42:           values.each do |title, percent, votes|
43:             plot.label "\"#{title.gsub(/\W/, ' ')}\" at first #{jitter(count, percent, values.transpose[1])}, first #{percent} font \"#{FONT},#{font_scale(values.transpose.last, votes)})\""
44:           end
45:           count += 1
46:         end
47:       end
48:     end

Helioid