Hi,
Thanks for the Visualisation API, it really rocks.
I'm using AreaChart and I'm trying to display some tooltips when
hoverint the points on the graph.
Unfortunately, the onmouseover() callback function returns only a
selection ({row:1,column:2} for example) and I couldn't get the event
to retrieve the mouse position...
Here is some code:
var areachart = new google.visualization.AreaChart
(document.getElementById('chart_div'));
areachart.draw(data, {});
google.visualization.events.addListener(areachart, 'onmouseover',
function(sel) {
area.setSelection(sel); // 1st question: this code doesn't
select
anything (no tooltip on the graph), why?
// 2nd question: how to retrieve the object event? window.event
is
undefined here, don't know why...
});
Thanks for help !
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