# File lib/scruffy/renderers/base.rb, line 24
    def render(options = {})
      options[:graph_id]    ||= 'scruffy_graph'
      options[:complexity]  ||= (global_complexity || :normal)

      # Allow subclasses to muck with components prior to renders.
      rendertime_renderer = self.clone
      rendertime_renderer.instance_eval { before_render if respond_to?(:before_render) }

      svg = Builder::XmlMarkup.new(:indent => 2)
      svg.instruct!
      svg.declare!(:DOCTYPE, :svg, :PUBLIC, "-//W3C//DTD SVG 1.1//EN", "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd")
      svg.svg(:xmlns => "http://www.w3.org/2000/svg", 'xmlns:xlink' => "http://www.w3.org/1999/xlink", :viewBox => "#{options[:size].first} 100 #{options[:size].last} 200") {
        svg.g(:id => options[:graph_id]) {
          rendertime_renderer.components.each do |component|
            component.render(svg, 
                             bounds_for( options[:size], component.position, component.size ), 
                             options)
          end
        }
      }
      svg.target!
    end