JFreeChart XYBlock chart doesn't show gridlines

[prestinman]

Hello.

I am creating a JasperReport with an XYBlock chart. Everything shows up fine except the gridlines on the chart. They only slightly appear if I set the foregroundAlpha(0.25f)...which makes me think that the gridlines are getting painted over. Does anyone know how to show the gridlines or move them to the front?

I am using JFreeChart 1.0.12 and jasperReports 3.7.2

 

Any suggestion is appreciated. Thanks!

Code:

    XYZDataset dataset = createDataset(sched);    NumberAxis xAxis = new NumberAxis("");    xAxis.setLowerMargin(0.0);    xAxis.setUpperMargin(0.0);    xAxis.setTickUnit(new NumberTickUnit(12.0));    xAxis.setNumberFormatOverride(new DayGraphNumberFormat());            NumberAxis yAxis = new NumberAxis("");    yAxis.setLowerMargin(0.0);    yAxis.setUpperMargin(0.0);    yAxis.setTickUnit(new NumberTickUnit(1.0));    yAxis.setNumberFormatOverride(new WeekDayNumberFormat());    yAxis.setAutoRangeIncludesZero(false);    yAxis.setInverted(true);    XYBlockRenderer renderer = new XYBlockRenderer();            LookupPaintScale paintScale = new LookupPaintScale(0.0,1.0,Color.black);    paintScale.add(0.0,new Color(216,220,166));    paintScale.add(1.0,Color.green);    renderer.setPaintScale(paintScale);    XYPlot plot = new XYPlot(dataset,yAxis,xAxis,renderer);    plot.setOrientation(PlotOrientation.HORIZONTAL);    plot.setForegroundAlpha(0.25f);    plot.setDomainGridlinePaint(Color.BLUE);    plot.setDomainGridlinesVisible(true);    plot.setDomainGridlineStroke(new BasicStroke(1.0f));            plot.setRangeGridlinePaint(Color.BLUE);    plot.setRangeGridlinesVisible(true);    plot.setRangeMinorGridlinesVisible(false);    plot.setRangeGridlineStroke(new BasicStroke(1.0f));        plot.setAxisOffset(new RectangleInsets(5,5,5,5));       JFreeChart chart = new JFreeChart("",plot);    chart.setBackgroundPaint(new Color(253,250,247));    chart.removeLegend();

[lucianc]

Does it work if you render the chart on a Swing canvas?  If not, my suggestion is to ask about this case on the JFreeChart forum as the problem would be in that code.

Regards,

Lucian