Keywords: Tuna all sizes Pengo.svg Caption Maximum sizes of Thunnus tuna species centimetres Other version <gallery> Image Tuna sizes svg Only species in Thunnus genus </gallery> Creation info Created in Ruby using http //www germane-software com/software/SVG/SVG Graph/ SVG Graph v0 6 1 by Pengo And then hand-massaged to make the x-axis use black text put species names in italics and shift labels by a few pixels so that they line up properly Source code Output of program must be redirected into a file e g save source code to tuna_graph rb and then run ruby tuna_graph rb > tuna_all_sizes svg Source code require 'SVG/Graph/BarHorizontal' fields 'Auxis rochei eudorax' 'Auxis rochei rochei' 'Auxis thazard thazard' 'Euthynnus affinis' 'Allothunnus fallai' 'Thunnus atlanticus' 'Katsuwonus pelamis' 'Euthynnus alletteratus' 'Thunnus alalunga' 'Thunnus tonggol' 'Gasterochisma melampus' 'Thunnus albacares' 'Thunnus maccoyii' 'Gymnosarda unicolor' 'Thunnus obesus' 'Thunnus orientalis' 'Thunnus thynnus' thedata 36 5 50 65 100 105 108 108 122 140 145 164 239 245 248 250 300 458 Note need to change xAxisTitle to black by hand still xAxisTitle text-anchor middle; fill 000000; graph SVG Graph BarHorizontal new height > 400 width > 800 min_scale_value > 0 0 default fields > fields rotate_y_labels > false key > false scale_integers > true make sure the scale is in whole numbers scale_divisions > 50 show_x_title > true x_title > centimeters no_css > true graph add_data data > thedata title > 'cm' show_title > false print Content-type image/svg+xml\r\n\r\n print graph burn PD-pengo Thunnus |