Question

Is it possible to change certain chart options for an already drawn chart (i.e. columnchart).

The general idea of what I’m trying to accomplish is, I created a widget that contains a chart, and after the chart is already drawn and displayed, I would like to for example be able to change the background of the chart when clicking on the widget, which in my case extends FocusPanel to be able to listen to clickevents (It contains more things than just the 1 chart)

I don’t see any methods in columnchart to be able to either set the options, or get the options of this chart(to be able to just create a new chart with one option changed and keep the rest of them the same)

Answer 1

The only way to do it is to redraw the chart with the updated Options.
According to the google chart tools documentation:

draw()

Draws the visualization on the page. Behind the scenes this can be
fetching a graphic from a server or creating the graphic on the page
using the linked visualization code. You should call this method every
time the data or options change. The object should be drawn inside the
DOM element passed into the constructor.

draw(data[, options])