QGraphicItem -> No antialiasing
I use the QGraphicsView and have a custom QGraphicItem to display some curves. The problem is that I play with the cache mode :
- DeviceCoordinateCache : Very slow with a lot of curves, but with antialiasing
- ItemCoordinateCache: Very slow with a lot of curves, but with antialiasing
- DeviceCoordinateCache : Fast, but without antialiasing !!
I don't know why I have no antialiasing with DeviceCoordinateCache !
Here is the kind of graph I try to display : http://www.spectralpixel.com/images/misc/features_sgraph.png