Class: Gruff::StackedBar

Inherits:
Base
  • Object
show all
Includes:
StackedMixin
Defined in:
lib/gruff/stacked_bar.rb

Overview

Here’s how to set up a Gruff::StackedBar.

g = Gruff::StackedBar.new
g.title = 'StackedBar Graph'
g.data :Art, [0, 5, 8, 15]
g.data :Philosophy, [10, 3, 2, 8]
g.data :Science, [2, 15, 8, 11]
g.write('stacked_bar.png')

Direct Known Subclasses

AccumulatorBar

Constant Summary

Constants inherited from Base

Base::DEFAULT_MARGIN, Base::DEFAULT_TARGET_WIDTH, Base::LABEL_MARGIN, Base::LEGEND_MARGIN

Instance Attribute Summary collapse

Attributes inherited from Base

#bottom_margin, #colors, #hide_legend, #hide_line_markers, #hide_line_numbers, #hide_title, #label_margin, #label_max_size, #label_truncation_style, #left_margin, #legend_at_bottom, #legend_box_size, #legend_margin, #marker_color, #marker_shadow_color, #maximum_value, #minimum_value, #no_data_message, #right_margin, #sort, #sorted_drawing, #title_margin, #top_margin, #x_axis_increment, #x_axis_label_format, #y_axis_increment, #y_axis_label_format

Method Summary

Methods inherited from Base

#add_color, #bold_title=, #data, #draw, #font=, #font_color=, #initialize, #label_rotation=, #label_stagger_height=, #labels=, #legend_font_size=, #margins=, #marker_font_size=, #replace_colors, #theme=, #theme_37signals, #theme_greyscale, #theme_keynote, #theme_odeo, #theme_pastel, #theme_rails_keynote, #title=, #title_font=, #title_font_size=, #to_blob, #to_image, #transparent_background=, #write

Constructor Details

This class inherits a constructor from Gruff::Base

Instance Attribute Details

#bar_spacing=(value) ⇒ Object (writeonly)

Spacing factor applied between bars.



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# File 'lib/gruff/stacked_bar.rb', line 19

def bar_spacing=(value)
  @bar_spacing = value
end

#hide_labels=(value) ⇒ Object (writeonly)

Prevent drawing of column labels below a stacked bar graph. Default is false.



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# File 'lib/gruff/stacked_bar.rb', line 33

def hide_labels=(value)
  @hide_labels = value
end

#label_formatting=(value) ⇒ Object (writeonly)

Set the number output format string or lambda. Default is “%.2f”.



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# File 'lib/gruff/stacked_bar.rb', line 26

def label_formatting=(value)
  @label_formatting = value
end

#segment_spacing=(value) ⇒ Object (writeonly)

Number of pixels between bar segments.



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# File 'lib/gruff/stacked_bar.rb', line 22

def segment_spacing=(value)
  @segment_spacing = value
end

#show_labels_for_bar_values=(value) ⇒ Object (writeonly)

Output the values for the bars on a bar graph. Default is false.



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# File 'lib/gruff/stacked_bar.rb', line 30

def show_labels_for_bar_values=(value)
  @show_labels_for_bar_values = value
end