Class: Gruff::SideStackedBar

Inherits:
SideBar show all
Includes:
StackedMixin
Defined in:
lib/gruff/side_stacked_bar.rb

Overview

New gruff graph type added to enable sideways stacking bar charts (basically looks like a x/y flip of a standard stacking bar chart)

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

g = Gruff::SideStackedBar.new
g.title = 'SideStackedBar Graph'
g.labels = {
  0 => '5/6',
  1 => '5/15',
  2 => '5/24',
  3 => '5/30',
}
g.data :Art, [0, 5, 8, 15]
g.data :Philosophy, [10, 3, 2, 8]
g.data :Science, [2, 15, 8, 11]
g.write('side_stacked_bar.png')

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 SideBar

#bar_spacing, #group_spacing, #hide_labels, #label_formatting, #show_labels_for_bar_values

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

Instance Method Summary collapse

Methods inherited from SideBar

#use_data_label=

Methods inherited from Base

#add_color, #bold_title=, #data, #draw, #font=, #font_color=, #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

#initialize ⇒ SideStackedBar

Returns a new instance of SideStackedBar.



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# File 'lib/gruff/side_stacked_bar.rb', line 44

def initialize(*)
  super
  @has_left_labels = true
end

Instance Attribute Details

#bar_spacing=(value) ⇒ Object (writeonly)

Spacing factor applied between bars.



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# File 'lib/gruff/side_stacked_bar.rb', line 28

def bar_spacing=(value)
  @bar_spacing = value
end

#hide_labels=(value) ⇒ Object (writeonly)

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



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# File 'lib/gruff/side_stacked_bar.rb', line 42

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/side_stacked_bar.rb', line 35

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/side_stacked_bar.rb', line 31

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/side_stacked_bar.rb', line 39

def show_labels_for_bar_values=(value)
  @show_labels_for_bar_values = value
end