# File lib/pdf/charts/stddev.rb, line 109
109:   def initialize
110:     @data                       = []
111: 
112:     @scale                      = Scale.new do |scale|
113:       scale.range               = 0..6
114:       scale.step                = 1
115:       scale.style               = PDF::Writer::StrokeStyle.new(0.25)
116:       scale.show_labels         = false
117:       scale.label               = Label.new do |label|
118:         label.text_size         = 8
119:         label.text_color        = Color::RGB::Black
120:         label.pad               = 2
121:         label.decimal_precision = 1
122:       end
123:     end
124:     @leading_gap              = 10
125:     @show_labels              = true
126:     @label                    = Label.new do |label|
127:       label.height            = 25
128:       label.background_color  = Color::RGB::Black
129:       label.text_color        = Color::RGB::White
130:       label.text_size         = 12
131:     end
132: 
133:     @outer_borders            = Marker.new do |marker|
134:       marker.style            = PDF::Writer::StrokeStyle.new(1.5)
135:       marker.color            = Color::RGB::Black
136:     end
137:     @inner_borders            = nil
138: 
139:     @dot                      = Marker.new do |marker|
140:       marker.style            = PDF::Writer::StrokeStyle.new(5)
141:       marker.color            = Color::RGB::Black
142:     end
143:     @bar                      = Marker.new do |marker|
144:       marker.style            = PDF::Writer::StrokeStyle.new(0.5)
145:       marker.color            = Color::RGB::Black
146:     end
147:     @upper_crossbar           = Marker.new do |marker|
148:       marker.style            = PDF::Writer::StrokeStyle.new(1)
149:       marker.color            = Color::RGB::Black
150:     end
151:     @lower_crossbar           = Marker.new do |marker|
152:       marker.style            = PDF::Writer::StrokeStyle.new(1)
153:       marker.color            = Color::RGB::Black
154:     end
155: 
156:     @height                   = 200
157:     @maximum_width            = 500
158:     @datapoint_width          = 35
159: 
160:     yield self if block_given?
161:   end