PieCharts need to see two columns of data: 1 string type (for the slice
labels) and 1 number type (for the slice values). You can use a DataView
to restrict the columns seen by the chart. As an example, if you wanted to
draw a PieChart with the "Insertion Name" (column 0) and "Budget" (column
7) columns, this is how you would do it:
var view = new google.visualization.DataView(dataTable);
view.setColumns([0, 7]);
chart = new
google.visualization.PieChart(document.getElementById('chart_div'));
chart.draw(view, options);
On Friday, April 4, 2014 7:51:46 AM UTC-4, Herrmann Hinz wrote:
>
> hi there,
>
> here is the json im using:
>
> https://gist.github.com/tobias-hinz-yoc/7028b01add47d5d71c58
>
> here is the js code to draw the table:
>
> https://gist.github.com/tobias-hinz-yoc/b227a665f0bc47fafd0e
>
>
> now i wanna use the same dataTable to draw a pieChart.
> but if i render the chart using:
>
> *chart = new
> google.visualization.PieChart(document.getElementById('chart_div'));*
> *chart.draw(dataTable, options);*
>
>
> .. the Pie dont turns into a pie.
>
>
> this is propably because my table data is "too complex"?
> i wonder if its possible to tell in the options of what values to use to
> draw the piechart?
>
> thinking about something like this:
>
> *argumentField: "insertionName",*
>
>
>
>
>
>
> *valueField: "revenue",is there any way? maybe with data roles? did not
> understood the concept so far at all.also was playing around with something
> like this:*google.visualization.data.group(dataTable,[0,4]);
>
> *help please =) *
>
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