Method: Gruff::Base#initialize

Defined in:
lib/gruff/base.rb

#initialize(target_width = DEFAULT_TARGET_WIDTH) ⇒ Base

If one numerical argument is given, the graph is drawn at 4/3 ratio according to the given width (800 results in 800x600, 400 gives 400x300, etc.).

Or, send a geometry string for other ratios (‘800x400’, ‘400x225’).

Looks for Bitstream Vera as the default font. Expects an environment var of MAGICK_FONT_PATH to be set. (Uses RMagick’s default font otherwise.)



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# File 'lib/gruff/base.rb', line 176

def initialize(target_width=DEFAULT_TARGET_WIDTH)
  @top_margin = @bottom_margin = @left_margin = @right_margin = 20.0

  if not Numeric === target_width
    geometric_width, geometric_height = target_width.split('x')
    @columns = geometric_width.to_f
    @rows = geometric_height.to_f
  else
    @columns = target_width.to_f
    @rows = target_width.to_f * 0.75
  end

  # Call any other initializers -- open-ended to allow for
  # subclass extensions
  self.class.instance_methods.
  select{|m| m.to_s =~ /^initialize_/o}.each do |initializer|
  self.send(initializer)
  end

  reset_themes
  theme_keynote
end