仿射变换
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:
-
Dragging the red circle in the centre of each drawing moves it to a new position.
-
Dragging the displaced red circle causes the current drawing to be rotated about the central circle. Rotation can also be controlled with the
Rotate
slider.
-
Scaling is controlled with the
Scale
slider.
-
Each drawing can be sheared with the
Shear
slider.
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