deletion problem with QGraphicsScene

[Lykurg]

Hi, first I haven't dealed with such a huge amount of items. Some thought coming to my mind (without testing if they improve speed):
a) can you reuse your once created items?
b) use removeItem() to remove them fast from the scene and then delete only the items in a worker thread.
c) while changing the scene use QObject::blockSignals() to fasten your operations up. (also turn the index off)

Lykurg

[spawn9997]

Lykurg --
Hey, those are some good ideas. I had thought of reusing items but have forgotten about simply removing items from the scene. I'll try this and see what happens.

jw