Thiago Macieira (26 May 2020 18:06) wrote: > Neither QMatrix nor QTransform have seen any change since the Qt 5.0 > repository import that was related to the underlying math. Only licensing > and C++ updates. > > The task https://bugreports.qt.io/browse/QTBUG-84441 is claiming there's > some wrong math or at least unexpected behaviour. Can someone who > understands these classes take a look?
I'll comment. It's down to the confusing nature of what the order of operations is. (Matrix multiplication isn't commutative.) I'll try to work out whether QMatrix / QTransform are consistent about it ... Eddy. _______________________________________________ Development mailing list Development@qt-project.org https://lists.qt-project.org/listinfo/development