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<h4 class="subsubsection" id="Quiver-Group-1"><span>15.4.6.7 Quiver Group<a class="copiable-link" href="#Quiver-Group-1"> ¶</a></span></h4>
<a class="index-entry-id" id="index-group-objects"></a>
<a class="index-entry-id" id="index-quiver-group"></a>
<p>Quiver series objects are created by the <code class="code">quiver</code> or <code class="code">quiver3</code>
functions. Each <code class="code">hggroup</code> element of the series contains three line
objects as children representing the body and head of the arrow,
together with a marker as the point of origin of the arrows. The
properties of the quiver series are
</p>
<dl class="table">
<dt><code class="code">autoscale</code></dt>
<dt><code class="code">autoscalefactor</code></dt>
<dd><p>Flag whether the length of the arrows is scaled or defined directly from
the <var class="var">u</var>, <var class="var">v</var> and <var class="var">w</var> data. If the arrow length is flagged
as being scaled by the <code class="code">autoscale</code> property, then the length of the
autoscaled arrow is controlled by the <code class="code">autoscalefactor</code>.
</p>
</dd>
<dt><code class="code">maxheadsize</code></dt>
<dd><p>This property controls the size of the head of the arrows in the quiver
series. The default value is 0.2.
</p>
</dd>
<dt><code class="code">showarrowhead</code></dt>
<dd><p>Flag whether the arrow heads are displayed in the quiver plot.
</p>
</dd>
<dt><code class="code">color</code></dt>
<dd><p>The RGB color or color name of the line objects of the quiver. See <a class="xref" href="Colors.html">Colors</a>.
</p>
</dd>
<dt><code class="code">linewidth</code></dt>
<dt><code class="code">linestyle</code></dt>
<dd><p>The line width and style of the line objects of the quiver. See <a class="xref" href="Line-Styles.html">Line Styles</a>.
</p>
</dd>
<dt><code class="code">marker</code></dt>
<dt><code class="code">markerfacecolor</code></dt>
<dt><code class="code">markersize</code></dt>
<dd><p>The line and fill color of the marker objects at the original of the
arrows. See <a class="xref" href="Colors.html">Colors</a>.
</p>
</dd>
<dt><code class="code">xdata</code></dt>
<dt><code class="code">ydata</code></dt>
<dt><code class="code">zdata</code></dt>
<dd><p>The origins of the values of the vector field.
</p>
</dd>
<dt><code class="code">udata</code></dt>
<dt><code class="code">vdata</code></dt>
<dt><code class="code">wdata</code></dt>
<dd><p>The values of the vector field to plot.
</p>
</dd>
<dt><code class="code">xdatasource</code></dt>
<dt><code class="code">ydatasource</code></dt>
<dt><code class="code">zdatasource</code></dt>
<dt><code class="code">udatasource</code></dt>
<dt><code class="code">vdatasource</code></dt>
<dt><code class="code">wdatasource</code></dt>
<dd><p>Data source variables.
</p></dd>
</dl>
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