问题
How to have rotated ellipse Shape in java? I.e. so that its semi-axes are not parallel to coordinate axes?
P.S. I need not just draw this ellipse but have it in memory as a shape object.
回答1:
Just take an Ellipse2D object and apply an AffineTransform rotation to it, no?
AffineTransform.getRotateInstance(Math.PI / 4)
.createTransformedShape(new Ellipse2D.Double(0, 0, 2, 1));
来源：https://stackoverflow.com/questions/10872311/how-to-have-rotated-ellipse-shape-in-java