Gavin,
Thanks for your report. You can post to the issues list:
https://code.google.com/p/google-visualization-api-issues/issues/list
I can reproduce the problem you saw with this function:
function drawVisualization() {
var data = google.visualization.arrayToDataTable([
['Director (Year)', 'Rotten Tomatoes'],
['Alfred Hitchcock (1935)', 8.4],
['Ralph Thomas (1959)', 8.4],
['Don Sharp (1978)', 8.4]
]);
var options = {
width: 600, height: 400,
title: 'Bug demo',
vAxis: {title: 'Accumulated Rating', logScale: true, gridlines: { count
: 3 }}
};
var chart = new google.visualization.ColumnChart(document.getElementById(
'visualization'));
chart.draw(data, options);
}
This bug is fixed in the next release. You can work around the problem in
the short term by adding a gridlines.count greater than 1. e.g.
vAxis: {title: 'Accumulated Rating', logScale: true, gridlines: { count:
3 }}
On Mon, Jun 24, 2013 at 9:27 AM, Gavin Burton <[email protected]> wrote:
> Hi,
>
> Im having this issue with logScale on the vAxis, if all the values are the
> same (e.g. there are two bars, and one is a total) the graph fails with the
> error "Cannot read property N of null".
>
> This demonstrates the issue: at the time of writing, I get a red error
> message at the top left and no graph.
>
> https://code.google.com/apis/ajax/playground/?type=visualization#combo_chart
>
> If this is not the proper place to report this issue, where is?
>
> Thanks
>
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