graphviz_r on Rails

Posted by Technohippy Fri, 16 Feb 2007 02:54:00 GMT

graphviz_r をRailsから使えるようにしてみました。

render_rdotでrdotを評価した結果の画像を send_dataしてくれます。

class RdotGenController < ApplicationController
  def index
    render :rdot do
      graph [:size => '1.5, 2.5']
      node [:shape => :record]
      node1 [:label => "<p_left> left|<p_center>center|<p_right> right"]
      node1 >> node2
      node1(:p_left) >> node2
      (node2 >> node1(:p_right)) [:label => 'record']
    end
  end
end

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