Method: Gruff::Base#initialize_ivars

Defined in:
lib/gruff/base.rb

#initialize_ivars ⇒ Object

Set instance variables for this object.

Subclasses can override this, call super, then set values separately.

This makes it possible to set defaults in a subclass but still allow developers to change this values in their program.



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# File 'lib/gruff/base.rb', line 205

def initialize_ivars
  # Internal for calculations
  @raw_columns = 800.0
  @raw_rows = 800.0 * (@rows/@columns)
  @column_count = 0
  @marker_count = nil
  @maximum_value = @minimum_value = nil
  @has_data = false
  @data = Array.new
  @labels = Hash.new
  @labels_seen = Hash.new
  @sort = true
  @title = nil

  @scale = @columns / @raw_columns

  vera_font_path = File.expand_path('Vera.ttf', ENV['MAGICK_FONT_PATH'])
  @font = File.exists?(vera_font_path) ? vera_font_path : nil

  @marker_font_size = 21.0
  @legend_font_size = 20.0
  @title_font_size = 36.0

  @legend_box_size = 20.0

  @no_data_message = "No Data"

  @hide_line_markers = @hide_legend = @hide_title = @hide_line_numbers = false
  @center_labels_over_point = true
  @has_left_labels = false

  @label_rotation = 0

  @additional_line_values = []      
  @additional_line_colors = []
  @theme_options = {}

  @x_axis_label = @y_axis_label = nil
  @y_axis_increment = nil
  @stacked = nil
  @norm_data = nil

end