How to rotate a Pixmap around bottom, right corner?

[michelmadeira]

Hi guys,

This code is not working. The origin is not changing trought the member called by inheritance.
The rotation matrix is ok.

The image is 88x63 pixels.

What i´m missing?

How to change anchor point of a pixmap rotation?

    QPixmap rpm(":/assets/assets/RPM_POINTER.png");
    QGraphicsPixmapItem rpmgauge(rpm);
    rpmgauge.setTransformOriginPoint(88,-63);
    
    QTransform rm;
    rm.rotate(45);
    
    rpm = rpmgauge.pixmap();
    graphic->addPixmap(rpm.transformed(rm));
    ui->graphicView->setScene(graphic);

Thank you

[Christian Ehrlicher]

@michelmadeira said in How to rotate a Pixmap around bottom, right corner?:

How to change anchor point of a pixmap rotation?

By modifying your QTransform to set 0/0 to the bottom right corner because the Qt coordinate system starts with 0/0 in the upper left.