score:10

Accepted answer

Can you use the the renderer to draw the line?

Here is the API doc for renderer. Look at the path function.

Also check the Try it for jsfiddle for path function.

score:6

You can also check the addPlotLine or addPlotBand methods (http://api.highcharts.com/highcharts#Axis.addPlotLine and http://api.highcharts.com/highcharts#Axis.addPlotBand).

It may be easier and quicker to use than drawing a SVG path, unless your line isn't straight.


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