Description

QuickGraph is a very simple to use bar graph class that creates (highly?) customizable horizontal or vertical bar graphs with little to no effort. The graphs generated via this class are pure html and require no external dependencies.

Examples

Note: examples are more geared towards rails usage

vertical graph with labels

     data = Traffic.find(:all, :select => "visits, date", :order => "id desc", :limit => 30)
     total = data.collect {|i| i.visits}.inject {|tmp, j| tmp + j}
     graph = QuickGraph.new(400, 300, total, "white", "Hover to view traffic for it's respective day")
     @vertical = graph.vertical(data.collect {|o| {:size => o.visits, :label => "#{o.visits} visitors on #{o.date}"}})

horizontal graph without labels

     graph = QuickGraph.new(100, 100, 100)
     @horizontal = graph.horizontal([{:size => 30, :color => "maroon"},
                                     {:size => 29, :color => "yellow"},
                                     {:size => 41, :color => "purple"}])

Miscellaneous

Questions, suggestions and comments very much appreciated. I hope this code is of use to somebody.