Ok I got it, but only in with BarChart (I think that if work in barchart
can work in the same way with Histogram):
My query is:
var query = new google.visualization.Query(tqUrl);
query.setQuery('Select B, G, C');
Where in column C I have the url image, the column C have the index 2
(start in 0) so I use:
var data = response.getDataTable();
data.setColumnProperties( 2, {
role: 'tooltip',
html: true
});
and then in chart properties:
'focusTarget': 'category',
'tooltip': {'isHtml': 'true'},
But when I replace BarChart with Histogram I get the message:
Focus target [object Object] is not supported for the chosen chart type
How can I use it with Histogram this option?
On Wednesday, 9 November 2016 19:18:25 UTC-5, Sixs wrote:
>
> I found this:
> https://developers.google.com/chart/interactive/docs/customizing_tooltip_content
> But in my case I'm getting the data from a spreadsheet. how can I set the
> 'role': 'tooltip' to my column that have the urls of the images?
>
> On Wednesday, 9 November 2016 18:35:09 UTC-5, Sixs wrote:
>>
>> How can I add an image into the label of a bar chart? I'm reading the
>> data from a spreadsheet and in one column I have the image's urls.
>>
>>
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