Class: Mext::Gruff::Plotter

Inherits:
Object
  • Object
show all
Defined in:
lib/tasks/gruff/gruff_plot.rb

Constant Summary collapse

OUTPUT_PATH = 
File.expand_path(File.join(['..'] * 4, 'tmp', 'output'), __FILE__)
DEFAULT_STEP = 
0.1
DEFAULT_DOT_RADIUS = 
2.0

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(t, s, ds, r = nil, stp = DEFAULT_STEP) ⇒ Plotter

Returns a new instance of Plotter.



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# File 'lib/tasks/gruff/gruff_plot.rb', line 15

def initialize(t, s, ds, r = nil, stp = DEFAULT_STEP)
  @title = t
  @size = s
  @datasets = ds
  @ranges = r
  self.step = stp
  self.dot_radius = DEFAULT_DOT_RADIUS
end

Instance Attribute Details

#datasets ⇒ Object (readonly)

Returns the value of attribute datasets.



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# File 'lib/tasks/gruff/gruff_plot.rb', line 8

def datasets
  @datasets
end

#dot_radius ⇒ Object

Returns the value of attribute dot_radius.



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# File 'lib/tasks/gruff/gruff_plot.rb', line 9

def dot_radius
  @dot_radius
end

#ranges ⇒ Object (readonly)

Returns the value of attribute ranges.



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# File 'lib/tasks/gruff/gruff_plot.rb', line 8

def ranges
  @ranges
end

#size ⇒ Object (readonly)

Returns the value of attribute size.



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# File 'lib/tasks/gruff/gruff_plot.rb', line 8

def size
  @size
end

#step ⇒ Object

Returns the value of attribute step.



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# File 'lib/tasks/gruff/gruff_plot.rb', line 9

def step
  @step
end

#title ⇒ Object (readonly)

Returns the value of attribute title.



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# File 'lib/tasks/gruff/gruff_plot.rb', line 8

def title
  @title
end

Instance Method Details

#plot ⇒ Object 



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# File 'lib/tasks/gruff/gruff_plot.rb', line 24

def plot
  @ranges = [Range.new(0, self.datasets-1)] unless self.ranges
  idx = 0
  self.ranges.each do
    |range|
    g = ::Gruff::Line.new(self.size)
    g.title = self.title + " (#{idx})"
    g.theme = ::Gruff::Themes::PASTEL
    g.dot_radius = self.dot_radius
    self.datasets[range].each do
      |args|
      f = yield(args)
      (xdata, ydata) = f.xy(self.step)
      g.dataxy(f.label, xdata, ydata)
    end
    g.write(File.join(Mext::Gruff::Plotter::OUTPUT_PATH, self.title.gsub(/\s+/, '_') + "_#{idx}.png"))
    idx += 1
  end
end