如何在Java2D中旋转矩形 [英] how to rotate a rectangle in Java2D

问题描述

我想旋转一个方法中的矩形，但不了解如何操作，并尝试如下:

I want to rotate a rectangle in a method but do not understand how to do it and tried as follows:

private void setBoundaryRotate(Rectangle b, int radio) {
        AffineTransform transform = new AffineTransform();
        transform.rotate(Math.toRadians(45), b.getX() + b.width/2, b.getY() + b.height/2);}

谢谢大家.

推荐答案

您需要调用

You need to call the transform() method on your transform object, passing in the co-ordinates of your rectangle in an array.

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