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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
++
++ /*!
++ \example painting/affine
++ \title Affine Transformations
++ \examplecategory {Graphics}
++ \ingroup examples-painting
++ \brief Demonstrates how affine transformations in QPainter work.
++
++ \brief In this example we show Qt's ability to perform affine transformations
++ on painting operations.
++
++ \image affine-demo.png {Demonstration of affine transformations on an image}
++
++ Transformations can be performed on any kind of graphics drawn using QPainter.
++ The transformations used to display the vector graphics, images, and text can be adjusted
++ in the following ways:
++
++ \list
++ \li Dragging the red circle in the centre of each drawing moves it to a new position.
++ \li Dragging the displaced red circle causes the current drawing to be rotated about the
++ central circle. Rotation can also be controlled with the \uicontrol Rotate slider.
++ \li Scaling is controlled with the \uicontrol Scale slider.
++ \li Each drawing can be sheared with the \uicontrol Shear slider.
++ \endlist
++ */