| author | eckhart.koppen@nokia.com |
| Wed, 31 Mar 2010 11:06:36 +0300 | |
| changeset 7 | f7bc934e204c |
| permissions | -rw-r--r-- |
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<html> |
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<center> |
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<h2>Affine Transformations</h2> |
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</center> |
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f7bc934e204c
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eckhart.koppen@nokia.com
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<p>In this demo we demonstrate Qt's ability to perform affine transformations |
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eckhart.koppen@nokia.com
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on painting operations.</p> |
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f7bc934e204c
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eckhart.koppen@nokia.com
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f7bc934e204c
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eckhart.koppen@nokia.com
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<p>Transformations can be performed on any kind of graphics drawn using |
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eckhart.koppen@nokia.com
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QPainter. The transformations used to display the vector graphics, images, |
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f7bc934e204c
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eckhart.koppen@nokia.com
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and text can be adjusted in the following ways:</p> |
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<ul> |
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<li>Dragging the red circle in the centre of each drawing moves it to a new |
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position.</li> |
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<li>Dragging the displaced red circle causes the current drawing to be |
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rotated about the central circle. Rotation can also be controlled with |
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the <b>Rotate</b> slider.</li> |
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<li>Scaling is controlled with the <b>Scale</b> slider.</li> |
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eckhart.koppen@nokia.com
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<li>Each drawing can be sheared with the <b>Shear</b> slider.</li> |
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</ul> |
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</html> |