java - 在 JFreeChart 中更改注释的颜色和线宽

Question

我正在为我的绘图添加注释，但我不知道如何更改它的颜色或线宽(描边)。我已经尽我所能阅读了文档，但我没有想法。谁能帮忙？

Shape shape = new Ellipse2D.Double(circleXValue - radius, circleYValue - radius, radius + radius, radius + radius);
XYShapeAnnotation annotation = new XYShapeAnnotation(shape);
// ??
plot.addAnnotation(annotation);

Answer 1

您正在使用这个 constructor :

public XYShapeAnnotation(java.awt.Shape shape)

您可能想使用 these constructors 之一指定附加参数:

public XYShapeAnnotation(
    java.awt.Shape shape,
    java.awt.Stroke stroke,
    java.awt.Paint outlinePaint)

public XYShapeAnnotation(
    java.awt.Shape shape,
    java.awt.Stroke stroke,
    java.awt.Paint outlinePaint,
    java.awt.Paint fillPaint)