插件分享,闲话就不多说了,主要是实现在legend中动态展示point点的值!
- 将以下代码单独拷入到文件中,引用在highchart.js文件之后1 
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 28(function (H) { 
 H.Series.prototype.point = {};
 H.Chart.prototype.callbacks.push(function (chart) {
 $(chart.container).bind('mousemove', function () {
 var legendOptions = chart.legend.options,
 hoverPoints = chart.hoverPoints;
 
 if (!hoverPoints && chart.hoverPoint) {
 hoverPoints = [chart.hoverPoint];
 }
 if (hoverPoints) {
 H.each(hoverPoints, function (point) {
 point.series.point = point;
 });
 H.each(chart.legend.allItems, function (item) {
 item.legendItem.attr({
 text: legendOptions.labelFormat ?
 H.format(legendOptions.labelFormat, item) :
 legendOptions.labelFormatter.call(item)
 });
 });
 chart.legend.render();
 }
 });
 });
 // 隐藏tooltip,允许crosshair
 H.Tooltip.prototype.defaultFormatter = function () { return false; };
 }(Highcharts));
说明:上述代码是一段扩展,在callback中为图标重新绑定了mousemove事件,当鼠标滑过某个点,动态修改legendItem的属性,并重新渲染
来张效果示意图

DEMO地址入口:传送门