Module: Analytica::Visualization::DataSet

Includes:
Strict
Included in:
DataSet
Defined in:
lib/visualization.rb

Instance Method Summary collapse

Instance Method Details

#datamax ⇒ Object 



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# File 'lib/visualization.rb', line 172

def datamax
(max > 0) ? (1.1*max) : 1
end

#to_bargraph(params = {}) ⇒ Object 



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# File 'lib/visualization.rb', line 267

def to_bargraph(params={})
  enforce_map_defaults!({
    :title => {:text => ' ', :color => "000000", :size => 12},
    :orientation => :vertical,
    :color => '00bb00',
    :background_color => 'ffffff',
    :stacked => false,
    :width => 600,
    :height => 280,
    :stacked => false,
    :format => :image_tag,
    :bar_settings => {}}, params)

  enforce_map!({
    :title => :hash_map,
    :width => :natural_number,
    :height => :natural_number,
    :orientation => [:vertical, :horizontal],
    :stacked => :boolean,
    :background_color => :hex_color,
    :color => :hex_color,
    :format => [:url, :image_tag],
    :bar_settings => :hash_map}, params)
  
  set_title(params[:title])

  options = {}

  options.merge!({:format => 'image_tag'}) if params[:format] == :image_tag

  base = {
    :data => self,
    :max_value => datamax,
    :size => "#{params[:width]}x#{params[:height]}",
    :orientation => params[:orientation].to_s,
    :stacked => params[:stacked],
    :bar_width_and_spacing => bar_settings(params[:bar_settings])
  }

  options.merge!(base)

  color = {
    :bar_colors => params[:color],
    :background => params[:background_color],
    :chart_background => params[:background_color]
  }

  options.merge!(color)

  options.merge!(common_options)
  
  return Gchart.bar(options)
end

#to_linegraph(params = {}) ⇒ Object 



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# File 'lib/visualization.rb', line 176

def to_linegraph(params={})
  enforce_map_defaults!({
    :title => {:text => ' ', :color => "000000", :size => 12},
    :color => 'ffffff',
    :background_color => '000000',
    :width => 600,
    :height => 280,
    :format => :image_tag,
    :bar_settings => {}}, params)

  enforce_map!({
    :title => :hash_map,
    :width => :natural_number,
    :height => :natural_number,
    :background_color => :hex_color,
    :format => [:url, :image_tag],
    :color => :hex_color}, params)

  set_title(params[:title])

  options = {}

  options.merge!({:format => 'image_tag'}) if params[:format] == :image_tag

  base = {
    :data => self,
    :max_value => datamax,
    :size => "#{params[:width]}x#{params[:height]}"
  }

  options.merge!(base)

  color = {
    :line_colors => params[:color],
    :background => params[:background_color],
    :chart_background => params[:background_color]
  }

  options.merge!(color)

  options.merge!(common_options)

  Gchart.line(options)
end

#to_sparkline(params = {}) ⇒ Object 



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# File 'lib/visualization.rb', line 221

def to_sparkline(params={})
  enforce_map_defaults!({
    :title => {:text => ' ', :color => "000000", :size => 12},
    :color => '0000ff',
    :background_color => 'ffffff',
    :width => 600,
    :height => 180,
    :format => :image_tag,
    :bar_settings => {}}, params)

  enforce_map!({
    :title => :hash_map,
    :width => :natural_number,
    :height => :natural_number,
    :background_color => :hex_color,
    :format => [:url, :image_tag],
    :color => :hex_color}, params)

  set_title(params[:title])

  options = {}

  options.merge!({:format => 'image_tag'}) if params[:format] == :image_tag

  base = {
    :data => self,
    :max_value => datamax,
    :size => "#{params[:width]}x#{params[:height]}"
  }

  options.merge!(base)

  color = {
    :line_colors => params[:color],
    :background => params[:background_color],
    :chart_background => params[:background_color]
  }

  options.merge!(color)

  options.merge!(common_options)

  Gchart.sparkline(options)
end