同步图表示例与高股票崩溃与"Cannot read property 'category' of undefined"

Question

我想要"同步图表"示例的功能，但是使用Hilitock。但是当尝试完成这一点时，我得到"hilitock.src.js:9991 Uncaught TypeError: Cannot read property 'category' of undefined"

这也直接适用于以下示例:http://www.highcharts.com/demo/synchronized-charts在转换为Hilitock时不起作用:http://jsfiddle.net/9gq47g0w/

(由于StackOverflow要求我发布一些代码与小提琴，这里来自Hilitock，注意到它崩溃的点**):

    /**
     * Refresh the tooltip's text and position.
     * @param {Object} point
     */
    refresh: function (point, mouseEvent) {
        ...
        // shared tooltip, array is sent over
        if (shared && !(point.series && point.series.noSharedTooltip)) {
            ...
            textConfig = {
                x: ** point[0].category, ** <- here!
                y: point[0].y
            };
           ...
        }
        ...
    },

Answer 1

你可以在这里找到一个同步的高点图表的例子:http://jsfiddle.net/vw77cooj/20/

这个例子使用自定义函数来同步图表上的极值和工具提示:

  function syncExtremes(e) {
    var thisChart = this.chart;
    if (e.trigger !== 'syncExtremes') { // Prevent feedback loop
      Highcharts.each(Highcharts.charts, function(chart) {
        if (chart !== thisChart) {
          if (chart.xAxis[0].setExtremes) { // It is null while updating
            chart.xAxis[0].setExtremes(e.min, e.max, undefined, false, {
              trigger: 'syncExtremes'
            });
          }
        }
      });
    }
  }
$('#container').bind('mousemove touchmove touchstart', function(e) {
  Highcharts.each(Highcharts.charts, function(chart) {
    event = chart.pointer.normalize(e.originalEvent);
    point = chart.series[0].searchPoint(event, true);
    if (point) {
      point.onMouseOver(); // Show the hover marker
      chart.tooltip.refresh(point); // Show the tooltip
      chart.xAxis[0].drawCrosshair(event, point); // Show the crosshair
    }
  });
});

如果你的图表上有多个系列，你可以改变负责同步你的工具提示的功能:

  function syncTooltip(container, p) {
    var i = 0,
      j = 0,
      data,
      series,
      points = [];
    for (; i < chartSummary.length; i++) {
      if (container.id != chartSummary[i].container.id) {
        series = chartSummary[i].series
        Highcharts.each(series, function(s) {
          Highcharts.each(s.data, function(point) {
            if (point.x === p && point.series.yAxis.options.index !== 1) {
              points.push(point)
            }
          })
        });
        chartSummary[i].tooltip.refresh(points);
      }
    };
  }

http://jsfiddle.net/ZArZM/316/

Answer 2

对于Hilitock的一个很好的工作示例，请遵循MouseOver和MouseOut的示例:

var onMouseOver = function onMouseOver() {
    var x = this.x,
      interactedChart = this.series.chart,
      points = [],
      charts = Highcharts.charts,
      each = Highcharts.each;
    each(charts, function(chart) {
      if (chart !== interactedChart) {
        each(chart.series, function(series) {
          each(series.data, function(point) {
            if (point.x === x && point.series.yAxis.options.index !== 1) {
              points.push(point)
            }
          })
        });
        each(points, function(p) {
          p.setState('hover');
        });
        chart.tooltip.refresh(points);
      }
    });
  } 

http://jsfiddle.net/ska1r5wq/

您可以从web上提供的示例中避免许多工具提示问题。

来源:https://github.com/highcharts/highcharts/issues/6595