Gantt CategoryPlot and CategoryMarker

[moonblade]

According to what i read in the jfree chart developer guide, Markers are added to the plot using the addDomainMarker() methods in the CategoryPlot class.

But how if i want to add the marker to the RangeAxis of a gantt chart (the range axis is in date timemillis ..) ? Is it possible to use addRangeMarker() instead of addDomainMarker() in the CategoryPlot ? I've tried the following code, with no error, and also no intended result with the marker, the marker just doesnt show up. Here's an excerpt of my code :

Code: Select all

        chart = createChart(dataset);
        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        Day day = new Day(1, 4, 2001);
        CategoryMarker marker = new CategoryMarker(new Long(day.getFirstMillisecond()), Color.blue, 
                new BasicStroke(1.0f));
        marker.setDrawAsLine(true);
        marker.setLabel("Marker Label");
        marker.setLabelFont(new Font("Dialog", Font.PLAIN, 11));
        marker.setLabelTextAnchor(TextAnchor.TOP_RIGHT);
        marker.setLabelOffset(new RectangleInsets(2, 5, 2, 5));
        plot.addRangeMarker(marker, Layer.BACKGROUND);

Please give me hints ...

[david.gilbert]

The CategoryMarker is intended for the domain axis (CategoryAxis) only. For the range axis, use a ValueMarker or RangeMarker.