examples/generate_chart_url.rb
require 'image-charts'
chart_url = ImageCharts()
.cht('bvg') # vertical bar chart
.chs('300x300') # 300px x 300px
.chd('a:60,40') # 2 data points: 60 and 40
.toURL(); # get the generated URL
puts chart_url # https:#image-charts.com/chart?cht=bvg&chs=300x300&chd=a%3A60%2C40