The #setSelection method takes an array of objects (usually, the array is
length 1 [or 0 to clear the selection]). Each object has row and/or column
properties, depending on the chart type. These properties tell the chart
which associated DataTable row and/or column to look in for the data point
to highlight. Each object in the array sets a single point for
highlighting, so if you want multiple points highlighted, you would pass
multiple objects in the array (though most visualizations only support 1
selected element at a time). Use it like this:
// highlight the data point at (3,1) in the chart
chart.setSelection([{row: 3, column: 1}]);
// highlight the first and third rows in the table
table.setSelection([
{row: 0},
{row: 2}
]);
The #setSelection method probably should only be called after the chart
throws its 'ready' event, so any event handlers that use this method should
be instantiated inside a 'ready' event handler for the chart:
google.visualization.events.addListener(chart, 'ready', function () {
// instantiate other event listeners here that use the
chart.setSelection method
});
On Wednesday, May 30, 2012 2:19:33 PM UTC-4, es wrote:
>
> No, I haven't. Do you think you could provide a small snippet of code as
> an example? The link to the description wasn't clear to me. Thanks!
>
> On Wed, May 30, 2012 at 6:09 AM, Jinji <[email protected]> wrote:
>
>> Have you tried the setSelection method (see
>> here<https://developers.google.com/chart/interactive/docs/gallery/geochart#Methods>
>> ).
>>
>> On Tue, May 29, 2012 at 11:11 PM, es <[email protected]> wrote:
>>
>>> Hi,
>>> I am currently referencing a fusion table to display my data on a
>>> map. I also have a chart on the side of the map, which displays
>>> chart
>>> data when I click the map point. Below the chart, there is a drop
>>> down menu whereby a user can alternatively select a point by a name
>>> (versus clicking a point on the map). The chart will display that
>>> site name and display the data. However, I would like to know how to
>>> have my data point, on the map, highlight or change colors when a
>>> user
>>> clicks a site name from the drop down menu.
>>> Thanks.
>>>
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>
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