plotOptions.setXAxisOptions( new TimeSeriesAxisOptions().setTickSize( 2, TickTimeUnit.MONTH ).setMonthNames( MONTH_NAMES ) );
// create a series
// Note: you need to specified the colors in other for the legend to
// work properly
SeriesHandler ottawaSeries = model.addSeries( "Ottawa", "#edc240" );
SeriesHandler vancouverSeries = model.addSeries( "Vancouver", "#afd8f8" );
// add data
ottawaSeries.add( new DataPoint( Date.UTC( 110, 0, 1, 0, 0, 0 ), -10.5 ) );
ottawaSeries.add( new DataPoint( Date.UTC( 110, 1, 1, 0, 0, 0 ), -8.6 ) );