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<center>+ −
<h2>Affine Transformations</h2>+ −
</center>+ −
+ − <p>In this demo we demonstrate Qt's ability to perform affine transformations+ −
on painting operations.</p>+ −
+ − <p>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:</p>+ −
+ − <ul>+ −
<li>Dragging the red circle in the centre of each drawing moves it to a new+ −
position.</li>+ −
<li>Dragging the displaced red circle causes the current drawing to be+ −
rotated about the central circle. Rotation can also be controlled with+ −
the <b>Rotate</b> slider.</li>+ −
<li>Scaling is controlled with the <b>Scale</b> slider.</li>+ −
<li>Each drawing can be sheared with the <b>Shear</b> slider.</li>+ −
</ul>+ −
+ − </html>+ −