Locale in Y-Axis on LineChart

[chozero]

Hi everyone,

I'm using LineChart but I can't get locale settings working on Y-axis
values (would like to use 'es' locale). I can set number format on
point values and they are displayed correctly in the corresponding
tooltip, but in the y-axis they are still displayin in english locale,
with ',' (comma) as grouping symbol.
Is this a bug or still unsupported?

The code I'm using:

google.load("visualization", "1", {packages:['linechart'], 'locale':
'es'});
...
// Get the data
...
var mydata = eval(stringData);
var data = new google.visualization.DataTable();
data.addColumn('string', nomEjeX);
data.addColumn('number', nomEjeY);
data.addRows(mydata);

var formatter = new google.visualization.NumberFormat({groupingSymbol:
'.', decimalSymbol: ','});
formatter.format(data, 1);
var chart = new google.visualization.LineChart(graph_container);

var options = new Object();
options.width = 322;
options.height = 200;
options.legend = 'bottom';
options.colors = ['#ff7f00'];
options.backgroundColor = '#ffffff';
options.legendBackgroundColor = '#ffffff';
options.title = nomIndicador;
chart.draw(data, options);

[chozero]

Anyone has this problem too? Any ideas?