java - 如何在 Java 中获得缩放形状的新高度

Question

我正在为特定点缩放形状，如下所示：

                AffineTransform t = shape.getAffineTransform();

                AffineTransform translatAffine =AffineTransform.getTranslateInstance(-cx, -cy);
                AffineTransform scaleAffine= AffineTransform.getScaleInstance(sx,sy);
                scaleAffine.concatenate(translatAffine); 
                translatAffine = scaleAffine;

                scaleAffine =AffineTransform.getTranslateInstance(cx, cy);
                scaleAffine.concatenate(translatAffine);
                translatAffine = scaleAffine;                   

                scaleAffine= new AffineTransform(t);
                translatAffine.concatenate(scaleAffine); 
                shape.setAffineTransform(translatAffine);

当我尝试使用 获得新高度时shape.getHeight()，我得到了初始高度

Answer 1

通过获取 affineTransform 并计算新高度，我找到了一个工作。我在上面的代码中添加了以下行

System.out.println("The new height :"+ shape.getHeight() *  shape.getAffineTransform().getScaleX());