//plotOptions.addXAxisOptions( CategoriesAxisOptions.create().setTickLength(0).setTickColor(gridColor).setFont( FontOptions.create().setColor(axesColor).setWeight("bold").setStyle("italic") ) );
plotOptions.addXAxisOptions( TimeSeriesAxisOptions.create().setTickSize(7, TickTimeUnit.DAY));
plotOptions.setGlobalSeriesOptions( GlobalSeriesOptions.create().setBarsSeriesOptions( BarSeriesOptions.create().setShow( true ).setBarWidth( 1 ).setAlignment( BarSeriesOptions.BarAlignment.CENTER ).setFill(0.6) ) );
Set the width of the bars in units of the x axis (or the y axis if "horizontal" is true), contrary to most other measures that are specified in pixels. For instance, for time series the unit is milliseconds so 24 * 60 * 60 * 1000 produces bars with the width of a day.