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<title>Qt 4.8: QML ParticleMotionWander Element</title>
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<a href="index.html" class="qtref"><span>Qt Reference Documentation</span></a>
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<li><a href="qdeclarativeelements.html">QML Elements</a></li>
<li>QML ParticleMotionWander Element</li>
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<h3><a name="toc">Contents</a></h3>
<ul>
<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
</ul>
</div>
<h1 class="title">QML ParticleMotionWander Element</h1>
<span class="subtitle"></span>
<!-- $$$ParticleMotionWander-brief -->
<p>The ParticleMotionWander object moves particles in a somewhat random fashion. <a href="#details">More...</a></p>
<!-- @@@ParticleMotionWander -->
<p>This element was introduced in Qt 4.7.</p>
<ul>
<li><a href="qml-particlemotionwander-members.html">List of all members, including inherited members</a></li>
</ul>
<a name="properties"></a>
<h2>Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-particlemotionwander.html#pace-prop">pace</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-particlemotionwander.html#xvariance-prop">xvariance</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-particlemotionwander.html#yvariance-prop">yvariance</a></b></b> : real</li>
</ul>
<!-- $$$ParticleMotionWander-description -->
<a name="details"></a>
<h2>Detailed Description</h2>
<p>The particles will continue roughly in the original direction, however will randomly drift to each side.</p>
<p>The code below produces an effect similar to falling snow.</p>
<pre class="qml"> <span class="type"><a href="qml-rectangle.html">Rectangle</a></span> {
<span class="name">width</span>: <span class="number">240</span>
<span class="name">height</span>: <span class="number">320</span>
<span class="name">color</span>: <span class="string">"black"</span>
<span class="type"><a href="qml-particles.html">Particles</a></span> {
<span class="name">y</span>: <span class="number">0</span>
<span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>
<span class="name">height</span>: <span class="number">30</span>
<span class="name">source</span>: <span class="string">"star.png"</span>
<span class="name">lifeSpan</span>: <span class="number">5000</span>
<span class="name">count</span>: <span class="number">50</span>
<span class="name">angle</span>: <span class="number">70</span>
<span class="name">angleDeviation</span>: <span class="number">36</span>
<span class="name">velocity</span>: <span class="number">30</span>
<span class="name">velocityDeviation</span>: <span class="number">10</span>
<span class="type">ParticleMotionWander</span> {
<span class="name">xvariance</span>: <span class="number">30</span>
<span class="name">pace</span>: <span class="number">100</span>
}
}
}</pre>
<p><b>See also </b><a href="qml-particles.html">Particles</a>.</p>
<!-- @@@ParticleMotionWander -->
<h2>Property Documentation</h2>
<!-- $$$pace -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="pace-prop"></a><span class="name">pace</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds how quickly the paricles will move from side to side.</p>
</div></div><!-- @@@pace -->
<br/>
<!-- $$$xvariance -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="xvariance-prop"></a><span class="name">xvariance</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr><tr valign="top" class="even"><td class="tblQmlPropNode"><p><a name="yvariance-prop"></a><span class="name">yvariance</span> : <span class="type"><a href="qml-real.html">real</a></span></p></td></tr></table></div><div class="qmldoc"><p>These properties set the amount to wander in the x and y directions.</p>
</div></div><!-- @@@xvariance -->
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