QuPathViewer.java 文件源码

protected void updateAffineTransform() {
    if (!hasServer())
        return;

    transform.setToIdentity();
    transform.translate(getWidth()*.5, getHeight()*.5);
    transform.scale(1.0/downsampleFactor, 1.0/downsampleFactor);
    transform.translate(-xCenter, -yCenter);
    if (rotation != 0)
        transform.rotate(rotation, xCenter, yCenter);

    transformInverse.setTransform(transform);
    try {
        transformInverse.invert();
    } catch (NoninvertibleTransformException e) {
        e.printStackTrace();
    }
}