Highcharts - 显示至少5条水平网格线，即使值不变

Question

I have a chart, in which I want to show only y grid lines. Hovewer, when value is constant for some longer period of time (chart shows only last 5 ticks), all grid lines disappear. Is it possible to always show multiple vertical grid lines, even when value is the same for all x's?

How it looks right now:

How I want to make it look like:

Answer 1

The easiest way to achieve what you seek would be to set a min and max for the yAxis , jsfiddle , like so:

yAxis: {
    gridLineWidth: 2,
    min: 1,
    max: 5
}

A softMin and softMax could potentially make it look nicer. Highcharts API on softMin .

Answer 2

You can use tickAmount to tell the amount of ticks that you want.

Also you can create your own tick position logic, creating ticks whenever you want with tickPositioner .

And also you can tune some tick options to finally fit your likings with all the *tick* options Highcharts has: http://api.highcharts.com/highcharts/yAxis . Just search for the tick word and look after yAxis... or read all the options one by one.