image-charts/ruby

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examples/generate_chart_url.rb

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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