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.