鼠标悬停标题时，我创建了一个自定义工具提示（白色背景，黑色文本）。
我使用chart.renderer.text和定位图表中心在事件上创建一个加载函数。但是我希望我的工具提示在“鼠标悬停”标题时跟随鼠标，同样在图表中的点上使用高图工具提示。
由于highcharts title是span元素而不是数据点，因此我无法使用tooltip默认函数。如何将工具提示定位到标题范围元素？请看小提琴：
https://jsfiddle.net/marialaustsen/w4k87jyo/
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Highcharts.createElement('link', {
href: 'https://fonts.googleapis.com/css?family=Unica+One',
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type: 'text/css'
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Highcharts.theme = {
colors: ['#79ea61', '#2b908f', '#F09448', '#6E8CD0', '#aaeeee', '#ff0066',
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chart: {
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linearGradient: {
x1: 0,
y1: 0,
x2: 1,
y2: 1
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stops: [
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[1, '#1b2a47']
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style: {
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plotBorderColor: '#1b2a47'
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title: {
style: {
color: '#E0E0E3',
textTransform: 'uppercase',
fontSize: '20px'
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subtitle: {
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tickColor: 'rgba(84, 108, 155, 0.5)',
tickWidth: 1,
title: {
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tooltip: {
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plotOptions: {
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trackBackgroundColor: '#152036',
trackBorderColor: '#152036'
},
// special colors for some of the
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background2: '#505053',
dataLabelsColor: '#B0B0B3',
textColor: '#FFF',
contrastTextColor: '#F0F0F3',
maskColor: 'rgba(255,255,255,0.3)'*/
};
// Apply the theme
Highcharts.setOptions(Highcharts.theme);
var chart = new Highcharts.Chart({
chart: {
renderTo: 'container',
events: {
load: function() {
var chart = this
if (grossLabel) {
grossLabel.destroy();
}
var newX = chart.plotWidth / 2,
newY = chart.plotHeight / 8;
var grossLabel = chart.renderer.text('<div id="flash"></div>', newX, newY, true)
.attr({
zIndex: 10
}).add();
}
}
},
title: {
useHTML: true,
text: 'Global mean surface Temperature',
events: {
mouseover: function() {
reloadFlash();
$('#flash').html('Global mean Surface temperature anomalies with respect to 1970-2000')
},
mouseout: function() {
hideFlash();
},
}
},
subtitle: {
text: 'CRPSS = 0.3 ACC= 0.6'
},
xAxis: {
type: 'datetime'
},
yAxis: {
title: {
text: 'Temperature'
}
},
/*
annotations: [{
labels: [{
point: {
x: 0,
y: 0,
},
shape: 'rect',
text: '0.6'
}],
labelOptions: {
padding: 8,
borderRadius: 5,
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borderWidth: 1,
borderColor: 'rgba(84, 108, 155, 1)',
align: 'left',
allowOverlap: true,
verticalAlign: 'top',
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}],*/
/*
tooltip: {
crosshairs: true,
shared: true,
valueSuffix: '°C'
},
*/
tooltip: {
xDateFormat: '%Y-%m-%d',
headerFormat: '<span style="font-size: 16px">{point.key}</span><br/>',
pointFormat: '<span style="font-size: 14px; color:{series.color}">{series.name}: <span style="font-size: 14px">{point.y}</span><br/>',
crosshairs: true,
shared: true,
useHTML: true,
valueSuffix: ' C',
},
legend: {
enabled: true
},
series: [{
name: 'Observations',
data: observations,
zIndex: 0,
lineWidth: 0,
marker: {
fillColor: 'white',
}
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name: 'MIN - MAX',
data: ranges,
type: 'arearange',
lineWidth: 0,
fillOpacity: 0.5,
zIndex: 1,
marker: {
enabled: false
},
tooltip: {
pointFormat: '<span style="font-size: 14px; color:{series.color}">{series.name}: <span style="font-size: 14px">{point.low} - {point.high}</span><br/>',
valueSuffix: ' C',
},
}, {
name: 'HINDCAST (33%) - SPREAD (66%)',
data: midranges,
type: 'arearange',
lineWidth: 0,
fillOpacity: 0.5,
zIndex: 2,
marker: {
enabled: false
},
tooltip: {
pointFormat: '<span style="font-size: 14px; color:{series.color}">{series.name}: <span style="font-size: 14px">{point.low} - {point.high}</span><br/>',
valueSuffix: ' C',
},
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name: 'BOXPLOT',
type: 'boxplot',
fillColor: '#6E8CD0',
lineWidth: 2,
medianWidth: 0,
stemColor: '#6E8CD0',
stemDashStyle: 'solid',
stemWidth: 2,
whiskerColor: '#6E8CD0',
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whiskerWidth: 2,
zIndex: 3,
data: [
[1577833200000, 0.5729389, 0.6131609, 0.61648345, 0.6465600, 0.660028],
],
tooltip: {
pointFormatter: function() {
const x = this.x;
const currentData = this.series.data.find(data => data.x === x);
const boxplotValues = currentData ? currentData.options : {};
return `<span style="font-size: 14px; color: #aaeeee">
Max: ${boxplotValues.high}<br>
Q3: ${boxplotValues.q3}<br>
Median: ${boxplotValues.median}<br>
Q1: ${boxplotValues.q1}<br>
Low: ${boxplotValues.low}<br></span>`;
}
}
}]
}
/*, function (chart) { // on complete
var point = chart.series[0].points[0];
chart.renderer.label('CRPSS = 0.3 ACC = 0.6', 5, 5, 'callout', point.plotX + chart.plotLeft, point.plotY + chart.plotTop)
.css({
color: '#000000',
fontWeight: 'bold',
fontSize: '1.4em'
})
.attr({
fill: 'rgba(255, 255, 255, 0.9)',
padding: 8,
r: 5,
zIndex: 6
})
.add();
}*/
);
});
````