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<td width="1"> </td><td class="postheader" valign="center"><a href="index.html"><font color="#004faf">Home</font></a> · <a href="classes.html"><font color="#004faf">All Classes</font></a> · <a href="functions.html"><font color="#004faf">All Functions</font></a> · <a href="overviews.html"><font color="#004faf">Overviews</font></a></td></tr></table><h1 class="title">Qt 3 Support Members for QMatrix</h1>
<p><b>The following class members are part of the <a href="qt3support.html">Qt 3 support layer</a>.</b> They are provided to help you port old code to Qt 4. We advise against using them in new code.</p>
<p><ul><li><a href="qmatrix.html">QMatrix class reference</a></li></ul></p>
<h2>Public Functions</h2>
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<tr><td class="memItemLeft" align="right" valign="top">qreal </td><td class="memItemRight" valign="bottom"><b><a href="qmatrix-qt3.html#det">det</a></b> () const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QMatrix </td><td class="memItemRight" valign="bottom"><b><a href="qmatrix-qt3.html#invert">invert</a></b> ( bool * <i>invertible</i> = 0 ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QRect </td><td class="memItemRight" valign="bottom"><b><a href="qmatrix-qt3.html#map-2">map</a></b> ( const QRect & <i>rect</i> ) const</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">QRegion </td><td class="memItemRight" valign="bottom"><b><a href="qmatrix-qt3.html#mapToRegion">mapToRegion</a></b> ( const QRect & <i>rectangle</i> ) const</td></tr>
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<h2>Member Function Documentation</h2>
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<h3 class="fn"><a name="det"></a><a href="qtglobal.html#qreal-typedef">qreal</a> QMatrix::det () const</h3>
<p>Returns the matrix's determinant.</p>
<p>See also <a href="qmatrix.html#determinant">determinant</a>().</p>
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<h3 class="fn"><a name="invert"></a>QMatrix QMatrix::invert ( bool * <i>invertible</i> = 0 ) const</h3>
<p>Returns an inverted copy of this matrix.</p>
<p>Use the <a href="qmatrix.html#inverted">inverted</a>() function instead.</p>
<h3 class="fn"><a name="map-2"></a><a href="qrect.html">QRect</a> QMatrix::map ( const <a href="qrect.html">QRect</a> & <i>rect</i> ) const</h3>
<p>Creates and returns a <a href="qrect.html">QRect</a> object that is a copy of the given rectangle, mapped into the coordinate system defined by this matrix.</p>
<p>Use the <a href="qmatrix.html#mapRect">mapRect</a>() function instead.</p>
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<h3 class="fn"><a name="mapToRegion"></a><a href="qregion.html">QRegion</a> QMatrix::mapToRegion ( const <a href="qrect.html">QRect</a> & <i>rectangle</i> ) const</h3>
<p>Returns the transformed rectangle <i>rectangle</i> as a <a href="qregion.html">QRegion</a> object. A rectangle which has been rotated or sheared may result in a non-rectangular region being returned.</p>
<p>Use the <a href="qmatrix.html#mapToPolygon">mapToPolygon</a>() or <a href="qmatrix.html#map">map</a>() function instead.</p>
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