Rotate QGraphicsPixmapItem

**durbrak** · 15th April 2007, 14:26

Thank you jpn, but I've already read that article and tried lots of examples from TT Labs but they all only work for the usual Z-Axis (which is not a problem and not really hard).

**marcel** · 15th April 2007, 14:33

The QGraphicsScene class provides a surface for managing a large number of 2D graphical items.

Keyword: 2D.

I believe you'll have to do more computations than that to get a rotation around X. Like obtaining a projection on XY plane of the rotated image rect and then map the image on the resulting shape. Then you'll get a trapezoid.

**durbrak** · 15th April 2007, 14:48

Well, I know. But I assumed since it also just uses QPainter with QTransform that wouldn't be a problem.
TT Labs also created examples to achieve that:

I looked into it but they all don't use QGraphicsView, they just use QWidget and paint the items on it with QPainter and QTransform (with similar code to mine above).