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