Hey

Indeed there is a bug introduced when a value is exactly 1/720 of the sum as
in the case above (2 / 1140 = 1/ 720).
The best workaround till we fix the bug is to change the visibility
threshold by setting the option:
  sliceVisibilityThreshold:1/719

for example

We will of course fix the bug soon. Thanks for pointing this out for us
  Badtnik

On Sat, Jun 26, 2010 at 7:01 PM, Seb <sebastien.du...@gmail.com> wrote:

> Hello,
>
> I have a problem with the interactive Pie Chart, by using some values,
> the graph is not displayed and the error message "Cannot read property
> 'label' of null" is displayed.
>
> The problem appears when I use the values : 1438 and 2, I have the
> same problem with the multiple of this couple of values = 2816 and  4,
> 5752 and 8 ....
>
> Is ti a bug of the pie chart ? because it's work with other values...
>
> You can reproduce this problem by pasting the code below in the :
> http://code.google.com/apis/ajax/playground/?type=visualization#pie_chart
>
> Thanks a lot for your help.
>
> ------------------------------------------------
> function drawVisualization() {
>  // Create and populate the data table.
>  var data = new google.visualization.DataTable();
>  data.addColumn('string', 'Task');
>  data.addColumn('number', 'Hours per Day');
>  data.addRows(2);
>  data.setValue(0, 0, 'Serie1');
>  data.setValue(0, 1, 1438);
>  data.setValue(1, 0, 'Serie2');
>  data.setValue(1, 1, 2);
>
>  // Create and draw the visualization.
>  new
> google.visualization.PieChart(document.getElementById('visualization')).
>      draw(data, {title:"So, how was your day?"});
> }
>
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