Hi, all


Understanding the coordinates concepts for QGraphicsScene is quite hart to me .

Readin documentation I can clear understand QGraphicsView and Items coordinate but not scene. Now I write code not setting sceneRect and boundingRect for QGraphicsItem couse if I set them everething go wrong.


What I missunderstand is where is geometric centre of QGraphicsScene regarding QGraphicsView (widget)?

Thank you very much in advance.