rubygem-prawn-graph

Draw basic graphs and charts natively in your PDFs

Prawn::Graph aims to add this functionality to Prawn by using the native PDF drawing tools Prawn exposes and a friendly single-method call to draw the graph. The graphs and the values plotted and drawn are all relatively sized within the bounds of the width and height you have set and should scale pretty well to any size of value. Of course, if things do end up looking too squashed, you can always just make your graph bigger. At the moment, only Bar and Line charts are implemented, with others coming soon. Both charts work in mostly the same way.