Class: Gruff::Dot
Overview
Constant Summary
Constants inherited from Base
Base::DEFAULT_MARGIN, Base::DEFAULT_TARGET_WIDTH, Base::LABEL_MARGIN, Base::LEGEND_MARGIN
Instance Attribute Summary
Attributes inherited from Base
#bold_title, #bottom_margin, #center_labels_over_point, #colors, #font, #font_color, #has_left_labels, #hide_legend, #hide_line_markers, #hide_line_numbers, #hide_title, #label_max_size, #label_stagger_height, #label_truncation_style, #labels, #left_margin, #legend_at_bottom, #legend_box_size, #legend_font_size, #legend_margin, #marker_color, #marker_count, #marker_font_size, #marker_shadow_color, #maximum_value, #minimum_value, #no_data_message, #right_margin, #sort, #sorted_drawing, #title, #title_font, #title_font_size, #title_margin, #top_margin, #use_data_label, #x_axis_increment, #x_axis_label, #y_axis_increment, #y_axis_label
Instance Method Summary collapse
Methods inherited from Base
#add_color, #data, #initialize, #margins=, #replace_colors, #theme=, #theme_37signals, #theme_greyscale, #theme_keynote, #theme_odeo, #theme_pastel, #theme_rails_keynote, #to_blob, #write
Constructor Details
This class inherits a constructor from Gruff::Base
Instance Method Details
#draw ⇒ Object
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# File 'lib/gruff/dot.rb', line 19 def draw @has_left_labels = true super return unless data_given? # Setup spacing. # spacing_factor = 1.0 items_width = @graph_height / column_count.to_f item_width = items_width * spacing_factor / store.length padding = (items_width * (1 - spacing_factor)) / 2 store.norm_data.each_with_index do |data_row, row_index| data_row.points.each_with_index do |data_point, point_index| x_pos = @graph_left + (data_point * @graph_width) y_pos = @graph_top + (items_width * point_index) + padding + (items_width.to_f / 2.0).round if row_index == 0 Gruff::Renderer::Line.new(color: @marker_color).render(@graph_left, y_pos, @graph_left + @graph_width, y_pos) end Gruff::Renderer::Circle.new(color: data_row.color).render(x_pos, y_pos, x_pos + (item_width.to_f / 3.0).round, y_pos) draw_label(y_pos, point_index) end end Gruff::Renderer.finish end |