I am using Line Chart element chart wizard to display a line chart in JasperReport based on the data read from a csv file. The line chart came out fine. The problem is for me to display a vertical line marker based on certain category value. I have tried using Multi-Axis Chart and setting up the second chart as I needed. But the moment I combined it, it will either make my first line chart haywire or my second line chart goes horizontal!
So, I have tried using Chart Customizer, export to jar, add it in Build Path, add it in Chart's Customizer properties. But, it fails to display what I wanted. Below is the code:
public class Lot_VerticalLine implements JRChartCustomizer {
public static void main(final String args) {
@SuppressWarnings("unused")
final Lot_VerticalLine demo = new Lot_VerticalLine();
//demo.customize(null, null);
}
public void customize(JFreeChart jfc, JRChart jrc) {
CategoryMarker marker = new CategoryMarker("Category Axis");
CategoryPlot plot = jfc.getCategoryPlot();
marker.setLabel("Band Y");
marker.setPaint(Color.red);
marker.setOutlinePaint(Color.red);
marker.setDrawAsLine(true);
marker.setAlpha(0.5f);
marker.setLabelAnchor(RectangleAnchor.TOP);
marker.setLabelTextAnchor(TextAnchor.TOP_CENTER);
marker.setLabelOffsetType(LengthAdjustmentType.CONTRACT);
plot.addDomainMarker(marker, Layer.BACKGROUND);
}
private void addMarker(Plot plot, Marker marker) {
((CategoryPlot) plot).addDomainMarker((CategoryMarker) marker);
CategoryItemRenderer renderer = (CategoryItemRenderer) ((CategoryPlot) plot).getRenderer();
}
}
What did I do wrong?
