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POShowing Tool-tip & Cross-hair on two independent graphs from a single hover event?
 

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  1. POShowing Tool-tip & Cross-hair on two independent graphs from a single hover event?
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    <p>Good day,</p> <p>We are trying to develop a report which contains two charts. Each chart shows different metrics on the same timescale (unix timestamp). The aim is to show the tooltip &amp; cross hair on both charts regardless of which you hover over. </p> <p>In my head I would like to get the xAxis timestamp (time) from the tooltip hover event on chart A. I would then fetch the associated series on chart B and trigger the tooltip refresh event.</p> <p>As it stands, it looks like highcharts only accepts points.</p> <p>I've added a mouseOver/Out event to both charts. This obtains the hoverPoints</p> <pre><code> plotOptions: { series: { point: { events: { mouseOver: function () { $el.trigger('tooltip-open', {"$sourceEl": $el[0], "point": this}); }, mouseOut: function () { $el.trigger('tooltip-close', {"$sourceEl": $el[0], "point": this}); } } } } } </code></pre> <p>// Where $el is the highcharts container // ..and tool-tip-XXXXX is a custom jQuery event.</p> <p>My temporary work around is: $el.bind('tooltip-open', function (e, data) { var $el = $(this);</p> <pre><code> if (data.$sourceEl.id == $el.id) { return; } var chart = $el.highcharts(); var points = $(chart.series).map(function () { return this.points }).get(); var pointsForTimestamp = $.grep(points, function (p) { return p.x == data.point.x; }); $(pointsForTimestamp).each(function () { this.setState('hover'); }); chart.tooltip.refresh(pointsForTimestamp); }); $el.bind('tooltip-close', function (e, data) { var $el = $(this); if (data.$sourceEl.id == this.id) { return; } var chart = $el.highcharts(); chart.tooltip.hide(); }); </code></pre> <p>var linkGraphs = function ($elA, $elB) {</p> <pre><code>function isEventHandled(data){ data.count = data.count || 0; if(data.count &gt; 0){ return true }else{ data.count++; return false; } } function bindToOpen($elA, $elB) { $elA.bind('tooltip-open', function (e, data) { if(!isEventHandled(data)){ $elB.trigger('tooltip-open', data); } }); } function bindToClose($elA, $elB) { $elA.bind('tooltip-close', function (e, data) { if(!isEventHandled(data)){ $elB.trigger('tooltip-close', data); } }); } bindToOpen($elA, $elB); bindToOpen($elB, $elA); bindToClose($elA, $elB); bindToClose($elB, $elA); </code></pre> <p>};</p>
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    1. USMilesB
    1. USMilesB
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    1. COHave you tried to use two panes in Highcharts? Like this [example](http://www.highcharts.com/stock/demo/candlestick-and-volume)
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      1. POShowing Tool-tip & Cross-hair on two independent graphs from a single hover event?
      1. USPaweł Fus
    2. COOn a quick note, my current work around to pull this off is:
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      1. POShowing Tool-tip & Cross-hair on two independent graphs from a single hover event?
      1. USMilesB
    3. CO@PawełFus We'd need to treat it as two separate but linked graphs. A unified legend wouldn't really work. That said you could potentially format it and fake the look and feel
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      1. POShowing Tool-tip & Cross-hair on two independent graphs from a single hover event?
      1. USMilesB
 

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