Following a example I found on StackOverflow, I tried adding an extra
column, with type='timeofday' and role='annotation'*, an extra row with the
time and an **annotation** style=*'line'*, but that does not work.*
*var numCols=graphData.cols.length; graphData.cols[numCols]={id:'timeLine',
type: 'timeofday', role: 'annotation'};var
numRows=graphData.rows.length;graphData.rows[numRows]={c:[]};graphData.rows[numRows].c[numCols]=[10,
47,
0];graphOptions.annotation=[];graphOptions.annotation[numCols]={style:'line'};chart.draw(graphData,
graphOptions);*
On Sunday, February 21, 2016 at 6:42:19 PM UTC+2, Steve Morris wrote:
>
> How do I add a vertical line marker to a stacked ColumnChart (the red line
> in the attached bitmap)?
> The X-axis is continuous and the x-positions of the columns
> are "timeofday". The marker will indicate the current time.
>
>
> <https://lh3.googleusercontent.com/-2ZodvdRcxZw/VsnnqiR5asI/AAAAAAABO1g/d4iK15QxwCg/s1600/Image5.png>
>
>
>
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