问题
According to this reference http://code.google.com/apis/chart/interactive/docs/gallery/linechart.html , tooltip.trigger = 'none' turns off tooltips on a chart.
How do you use this? data.tooltips.trigger = 'none'?
And, how do you turn off tooltips for a single column?
回答1:
When you draw the chart pass it as a param:
chart.draw(data, {trigger:'none'});
回答2:
Disabling tooltips for a single columns isn't possible.
But you can get a similar effect by adding enableInteractivity: false to the series.
See this answer for an example.
来源：https://stackoverflow.com/questions/9271449/using-google-visualization-api-how-to-turn-off-tooltips-for-a-single-column