 
       # update the node label
       @nodes.data(@nodes_excluding_loss, (d) -> d.get('id'))
+        .style('opacity', (d) -> if d.should_show() then 1 else 0)
         .attr("data-tooltip", (d) =>
           h = ""
           for l in d.left_links

        else
          @gquery.future_value()
      if _.isNumber(x) then x else 0.0

    color: => @get('color') || "steelblue"


        .attr("d", (link) => @link_line link.path_points())
        .style("stroke-width", (link) => @y(link.value()))
        .attr("display", (link) ->
          if link.should_show() then 'inline' else 'none'
        )
        .attr("data-tooltip", (d) => @value_formatter d.value())

