Animation of QPainterpaths in QGraphicsScene in QGraphicsView

Hi

I've pretty much got the end game with my "Teach Yourself Qt" project and need some advice on animation of profiles in Qt.

I have a number of 2D profiles described by lines and arcs created as QPainterPaths starting at (0,0), and all created on a separate QGraphicsScene.

The bounding rectangles of all of these QPainterPaths are different.

When I show the QGraphicsScenes in order on the QGraphicsView I want the original QPainterPath origin to be located at the same point in the QGraphicsView.

I suppose it is analogous to an animation about a fixed point.

The problem is that each QGraphicsScene gets automatically centered at each iteration which moves the required QGraphicsScene fixed point about the QGraphicsView and I don't get the required effect.

Anyone have any thoughts?

Thanks

Brian

Hi

I've programmed a workaround to calculate the maximun bounding rectangle for each QGraphicsScene by a read through the data before displaying it and then adding this maximum bounding rectangle to each QGraphicsScene when it is displayed. It works as expected now, but it's a bit of a chicken before the egg solution :-).

I have experimented with MapFromScene and MapToScene suspecting that may offer a solution but with little sucess.

Brian