gchart.rb

  def distribution_chart_helper(width,height,sent,click)
    data = [sent,click].map{|d| [d,0.01].max}.join("|")
    legend = "sent|clicks"
    data_labels = (0..1).map{|i|  "N*f0*,000000,#{i},-1,11"}.join("|")
    max_val = [sent,click,1].max
    series_colors = %Q{76a4fb,405887}
    url = %Q{http://chart.apis.google.com/chart?chxt=y&chbh=a&chs=#{width}x#{height}&cht=bvg&chf=bg,s,efefef}
    url += %Q{&chds=0,#{max_val*1.1}&chxr=0,0,#{max_val}}
    url += %Q{&chco=#{series_colors}}
    url += %Q{&chd=t:#{data}&&chdl=#{legend}}
    url += %Q{&chm=#{data_labels}}
    url 
   end
end