The answer depends on what you are using to draw the charts. Are they all
part of a single
Dashboard<https://developers.google.com/chart/interactive/docs/gallery/controls#dashboardobject>object?
If so, then you just need to hook up a "ready" event listener on
the dashboard and you're all set:
google.visualization.events.addListener(dash, 'ready', function () {
// all done!
});
If your charts are separate, then you have to create an object to track
their ready states of each chart individually and test the state of that
object in a "ready" event listener for each chart:
var chartsReady = {
chart1: false,
chart2: false,
chart3: false
};
function allChartsReady () {
for (var x in chartsReady) {
if (!chartsReady[x]) {
// at least one chart isn't ready, so quit
return false;
}
}
// all charts are ready,
}
google.visualization.events.addListener(chart1, 'ready', function () {
chartsReady['chart1'] = true;
allChartsReady();
});
google.visualization.events.addListener(chart2, 'ready', function () {
chartsReady['chart2'] = true;
allChartsReady();
});
google.visualization.events.addListener(chart3, 'ready', function () {
chartsReady['chart3'] = true;
allChartsReady();
});
On Saturday, March 9, 2013 6:36:18 AM UTC-5, Daniel K wrote:
>
> Hey there,
>
> I'm working on a webpage that uses a lot of diferent Google charts.
> Consequently it takes a few seconds until all the visualizations are drawn.
> That delay doesn't look great and therefore I just wanted to open a
> "loading" dialog. For closing that dialog when the visualization is ready I
> need
> to know when every chart is drawn. Is there an event for that? How can I
> access the "building status" of my visualizaions?
>
> Thanks in advance!
>
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