我想在每个堆栈栏上添加一条红线。请参阅下面的图片。
如果您在图片中注意到,每个堆栈栏顶部都有一条红线。我尝试了许多解决方法,但都无济于事。有人知道如何实现吗?
粘贴示例代码。
this.graphData.graphRef = new Chart({
chart: {
type: 'column',
height: this.graphHeight
},
xAxis: {
categories: this.graphData.column,
labels: {
useHTML: true,
}
},
yAxis: {
min: 0,
stackLabels: {
enabled: true,
rotation: 270,
x: -16,
y: 160,
style: {
fontWeight: 'bold',
color: 'black'
}
}
},
plotOptions: {
column: {
stacking: 'normal',
pointPadding: 0.3,
dataLabels: {
enabled: false,
color: '#000',
style: {
textOutline: '0px',
fontSize: '10px',
fontWeight: 'none'
}
},
pointWidth: 30
},
...
series: [
{
name: 'CBG',
data: [15,20, 14, 20],
stack: 'P',
zIndex: i
},
...
{
name: 'CBG',
data: [15, 23, 14, 20],
stack: 'R',
zIndex: i
},
...
{
name: 'CBG',
data: [25, 23, 24, 20],
stack: 'A/C',
zIndex: i
},
...
{
name: 'CBG',
data: [25, 23, 14, 20],
stack: 'E',
zIndex: i
},
...
]
});
任何帮助或建议,我们都会感激不尽。谢谢!
更新
例如假设红线称为CBG。如果Q1FY2020组的堆栈栏P的CBG为1500,则应在Y轴为1500的堆栈上绘制红线。希望您理解。
您可以使用SVGRenderer工具将这些行呈现为渲染回调内部的路径。我准备了一个计算点数的示例。
演示:https://jsfiddle.net/BlackLabel/r9L0yhg2/
events: {
render() {
let chart = this,
distanceFromStack = 10;
chart.series.forEach(s => {
s.points.forEach((p, i) => {
//path coordinates
let pathx1 = p.barX + chart.plotLeft,
pathy1 = p.plotY + distanceFromStack,
pathx2 = pathx1 + p.pointWidth,
pathy2 = pathy1;
//destroy existing path after resize
if (p.customLine) {
p.customLine.destroy();
}
//render path only for the upper points - their yBottom is different than chart.plotHeight
if (p.yBottom !== chart.plotHeight) {
p.customLine = chart.renderer.path(['M', pathx1, pathy1, 'L', pathx2, pathy2]).attr({
stroke: 'red',
'stroke-width': 2
}).add();
}
})
})
}
}
API:https://api.highcharts.com/highcharts/chart.events.render
API:https://api.highcharts.com/class-reference/Highcharts.SVGRenderer#path
[如果不清楚,请随时提问。