如何隐藏日期时间x轴但仍然能够在Highcharts甘特图中显示绘图线？

Question

I want to disable or hide marked x-axis on the following image:

But I still need to be able to show a plot line.

I tried to play around with "xAxis" Highcharts property and I am able to hide marked x-axis, but then I can not add a plot line. It seems to me this axis is somehow connected with the plot.

Thanks a lot for help.

Answer 1

The plotLines are connected to an axis, but you can separately disable the grid and the labels :

xAxis: [{
    ...,
    grid: {
        enabled: false
    },
    plotLines: [{
        color: 'red',
        value: today + day * 7,
        width: 5
    }],
    labels: {
        enabled: false
    },
    tickLength: 0
}, {
    visible: false
}]

Live demo: https://jsfiddle.net/BlackLabel/c2xLruvp/

API Reference: https://api.highcharts.com/gantt/xAxis.visible