JFreeChart Vertical Label for IntervalMarker

I would like to rotate the label for the IntervalMarker:

        IntervalMarker im = new IntervalMarker(...);
        im.setLabel("LABEL");
//      im.setLabelOffsetType(LengthAdjustmentType.EXPAND);
//      im.setLabelOffset(new RectangleInsets(10.0, 10.0, 10.0, 10.0)); 
//      im.setLabelFont(new Font("SansSerif", Font.ITALIC, 11));
        im.setLabelAnchor(RectangleAnchor.TOP_LEFT);
        im.setLabelTextAnchor(TextAnchor.TOP_LEFT);
        im.setPaint(new Color(208, 194, 214));

It didn't allow me to upload a picture, here is the link: http://i54.tinypic.com/5z40fs.png

I would like to have "LABEL" vertical开发者_JAVA百科, for better looks.

Thank you

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I've found it easier to add Text Annotations to vertical markers for more control over their labels. Here's an example:

// vertical line marker and label
Marker updateMarker = new ValueMarker(dayOf, Color.black, dashedStroke, null, null, 1.0f);    
XYTextAnnotation updateLabel = new XYTextAnnotation("Update", dayOf - labelOffset, labelHeight);
updateLabel.setFont(new Font("Sans Serif", Font.BOLD, 10));
updateLabel.setRotationAnchor(TextAnchor.BASELINE_CENTER);
updateLabel.setTextAnchor(TextAnchor.BASELINE_CENTER);
updateLabel.setRotationAngle(-3.14 / 2);
updateLabel.setPaint(Color.black);
plot.addDomainMarker(updateMarker, Layer.BACKGROUND);
plot.addAnnotation(updateLabel);

This rotation makes the label appear on the left side of the vertical marker line reading bottom-to-top. I use variables "labelOffset" and "labelHeight" to determine the exact position of the label in relation to the vertical line, but these could be set statically as well.

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Rendering the marker's label is handled by the draw{Domain|Range}Marker() method of the plot's renderer using drawAlignedString(). You'd have to use drawRotatedString(), instead.

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I couldn't find how to do this directly, but you can always put a rotated text Annotation in an appropriate place.