Options for displaying two x-axes on a LineChart

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Alexandru Băluț

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Jun 8, 2020, 11:42:27 AM6/8/20

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I have a LineChart which shows how a value changes over time. I'd like to mark specific dates representing events/milestones which took place or will take place.

While it's possible to specify multiple y-axes using vAxes, there is no hAxes property.

I see in https://developers.google.com/chart/interactive/docs/gallery/linechart I could use hAxis.ticks which "Replaces the automatically generated X-axis ticks with the specified array", but then I have to calculate myself the dates to be displayed and it seems messy.