From 1583d643285641bf71e6a107331d788acca9850c Mon Sep 17 00:00:00 2001 From: Rhys Weatherley Date: Wed, 28 Oct 2009 16:08:13 +1000 Subject: qdoc: Update QGraphicsTransform docs after changes to QGraphicsRotation Reviewed-by: Michael Brasser --- src/gui/graphicsview/qgraphicstransform.cpp | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/gui/graphicsview/qgraphicstransform.cpp b/src/gui/graphicsview/qgraphicstransform.cpp index 93dc196..e2a3f08 100644 --- a/src/gui/graphicsview/qgraphicstransform.cpp +++ b/src/gui/graphicsview/qgraphicstransform.cpp @@ -69,6 +69,9 @@ objects are applied to a QGraphicsItem, all of the transformations are computed in true 3D space, with the projection back to 2D only occurring after the last QGraphicsTransform is applied. + The exception to this is QGraphicsRotation, which projects back to + 2D after each rotation to preserve the perspective effect around + the X and Y axes. If you want to create your own configurable transformation, you can create a subclass of QGraphicsTransform (or any or the existing subclasses), and -- cgit v0.12