我正在使用 highcharts 饼图，需要将工具提示位置更改为鼠标在图表上方时所在的位置。目前我试图改变它的位置，但它不起作用。
以下是我尝试创建和使用图表的方式：
chartObj = new Highcharts.Chart({
chart: {
renderTo: container,
plotBackgroundColor: null,
plotBorderWidth: null,
plotShadow: false,
animation: false,
backgroundColor: '#e4e6e1',
height: 300
},
colors: colors,
title: {
text: title
},
tooltip: {
positioner: function (boxWidth, boxHeight, point) {
return { x: point.plotX + this.chart.plotLeft, y: point.plotY + this.chart.plotTop };
},
pointFormat: '<b>{point.percentage}%</b>',
percentageDecimals: 1,
style: {
color: '#333333',
fontSize: '12px',
padding: '8px',
opacity: 1
}
},
plotOptions: {
pie: {
allowPointSelect: false,
cursor: 'pointer',
dataLabels: {
enabled: width < 1500 ? false : true,
color:'#000000',
useHTML: true,
formatter: function () { return this.percentage.toFixed(2) + "%"; },
connectorWidth: 0,
distance: 5
},
showInLegend: true,
color: '#000000',
connectorColor: '#000000',
point: {
events: {
legendItemClick: function () {
return false;
}
}
},
},
},
series: [{ type: 'pie',
name: title,
visible: chart_visible,
data: data,
}],
credits: {
enabled: false
},
legend: {
layout: 'horizontal',
backgroundColor: '#FFFFFF',
align: 'center',
verticalAlign: 'bottom',
x: 0,
y: 0,
floating: false,
shadow: true
},
exporting: {
enabled: false
}
});
chartObj.series[0].setData(data);
return chartObj;