Position of Items in QGraphicsScene/QGraphicsView

[StefanK2]

I used maximumViewportSize(), this worked.

When I don't set a sceneRect, the position 0,0 is the center of the view.

Thanks for your help.

[wysota]

When I don't set a sceneRect, the position 0,0 is the center of the view.

The whole scene is centered in the view. Unless you place an item in negative coordinates of the scene, the scene's left top corner will have (0,0) coordinates.