     @svgEndCircle = @svgWrapper.append 'circle'
       .classed 'fancy-graph__circle', true
       .attr 'r', 2
+      .attr 'opacity', 0
 
     @svgHoverArea = @svg.append 'rect'
       .classed 'fancy-graph__hover-area', true

    @loadData data


  loadData: (data) =>
    return if _.isEqual data, @data



  hoverRefresh: =>
    return if !@options.hoverId?
    return if !@data[0]?

    x = @options.scales.x.invert(d3.mouse(@svgHoverArea.node())[0] - @margins.left)
    i = @lookupIndexFromX x
