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  <div class="section" id="plotcurveitem">
<h1>PlotCurveItem<a class="headerlink" href="#plotcurveitem" title="Permalink to this headline"></a></h1>
<dl class="class">
<dt id="pyqtgraph.PlotCurveItem">
<em class="property">class </em><code class="descclassname">pyqtgraph.</code><code class="descname">PlotCurveItem</code><span class="sig-paren">(</span><em>*args</em>, <em>**kargs</em><span class="sig-paren">)</span><a class="reference internal" href="../_modules/pyqtgraph/graphicsItems/PlotCurveItem.html#PlotCurveItem"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#pyqtgraph.PlotCurveItem" title="Permalink to this definition"></a></dt>
<dd><p>Class representing a single plot curve. Instances of this class are created
automatically as part of PlotDataItem; these rarely need to be instantiated
directly.</p>
<p>Features:</p>
<ul class="simple">
<li>Fast data update</li>
<li>Fill under curve</li>
<li>Mouse interaction</li>
</ul>
<table border="1" class="docutils">
<colgroup>
<col width="30%" />
<col width="70%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><strong>Signals:</strong></td>
<td>&nbsp;</td>
</tr>
<tr class="row-even"><td>sigPlotChanged(self)</td>
<td>Emitted when the data being plotted has changed</td>
</tr>
<tr class="row-odd"><td>sigClicked(self)</td>
<td>Emitted when the curve is clicked</td>
</tr>
</tbody>
</table>
<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.__init__">
<code class="descname">__init__</code><span class="sig-paren">(</span><em>*args</em>, <em>**kargs</em><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.__init__" title="Permalink to this definition"></a></dt>
<dd><p>Forwards all arguments to <a class="reference internal" href="#pyqtgraph.PlotCurveItem.setData" title="pyqtgraph.PlotCurveItem.setData"><code class="xref py py-func docutils literal"><span class="pre">setData</span></code></a>.</p>
<p>Some extra arguments are accepted as well:</p>
<table border="1" class="docutils">
<colgroup>
<col width="20%" />
<col width="80%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><strong>Arguments:</strong></td>
<td>&nbsp;</td>
</tr>
<tr class="row-even"><td>parent</td>
<td>The parent GraphicsObject (optional)</td>
</tr>
<tr class="row-odd"><td>clickable</td>
<td>If True, the item will emit sigClicked when it is
clicked on. Defaults to False.</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.mouseShape">
<code class="descname">mouseShape</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.mouseShape" title="Permalink to this definition"></a></dt>
<dd><p>Return a QPainterPath representing the clickable shape of the curve</p>
</dd></dl>

<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.setBrush">
<code class="descname">setBrush</code><span class="sig-paren">(</span><em>*args</em>, <em>**kargs</em><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.setBrush" title="Permalink to this definition"></a></dt>
<dd><p>Set the brush used when filling the area under the curve</p>
</dd></dl>

<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.setClickable">
<code class="descname">setClickable</code><span class="sig-paren">(</span><em>s</em>, <em>width=None</em><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.setClickable" title="Permalink to this definition"></a></dt>
<dd><p>Sets whether the item responds to mouse clicks.</p>
<p>The <em>width</em> argument specifies the width in pixels orthogonal to the
curve that will respond to a mouse click.</p>
</dd></dl>

<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.setData">
<code class="descname">setData</code><span class="sig-paren">(</span><em>*args</em>, <em>**kargs</em><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.setData" title="Permalink to this definition"></a></dt>
<dd><table border="1" class="docutils">
<colgroup>
<col width="20%" />
<col width="80%" />
</colgroup>
<tbody valign="top">
<tr class="row-odd"><td><strong>Arguments:</strong></td>
<td>&nbsp;</td>
</tr>
<tr class="row-even"><td>x, y</td>
<td>(numpy arrays) Data to show</td>
</tr>
<tr class="row-odd"><td>pen</td>
<td>Pen to use when drawing. Any single argument accepted by
<a class="reference internal" href="../functions.html#pyqtgraph.mkPen" title="pyqtgraph.mkPen"><code class="xref py py-func docutils literal"><span class="pre">mkPen</span></code></a> is allowed.</td>
</tr>
<tr class="row-even"><td>shadowPen</td>
<td>Pen for drawing behind the primary pen. Usually this
is used to emphasize the curve by providing a
high-contrast border. Any single argument accepted by
<a class="reference internal" href="../functions.html#pyqtgraph.mkPen" title="pyqtgraph.mkPen"><code class="xref py py-func docutils literal"><span class="pre">mkPen</span></code></a> is allowed.</td>
</tr>
<tr class="row-odd"><td>fillLevel</td>
<td>(float or None) Fill the area &#8216;under&#8217; the curve to
<em>fillLevel</em></td>
</tr>
<tr class="row-even"><td>brush</td>
<td>QBrush to use when filling. Any single argument accepted
by <a class="reference internal" href="../functions.html#pyqtgraph.mkBrush" title="pyqtgraph.mkBrush"><code class="xref py py-func docutils literal"><span class="pre">mkBrush</span></code></a> is allowed.</td>
</tr>
<tr class="row-odd"><td>antialias</td>
<td>(bool) Whether to use antialiasing when drawing. This
is disabled by default because it decreases performance.</td>
</tr>
<tr class="row-even"><td>stepMode</td>
<td>If True, two orthogonal lines are drawn for each sample
as steps. This is commonly used when drawing histograms.
Note that in this case, len(x) == len(y) + 1</td>
</tr>
<tr class="row-odd"><td>connect</td>
<td>Argument specifying how vertexes should be connected
by line segments. Default is &#8220;all&#8221;, indicating full
connection. &#8220;pairs&#8221; causes only even-numbered segments
to be drawn. &#8220;finite&#8221; causes segments to be omitted if
they are attached to nan or inf values. For any other
connectivity, specify an array of boolean values.</td>
</tr>
</tbody>
</table>
<p>If non-keyword arguments are used, they will be interpreted as
setData(y) for a single argument and setData(x, y) for two
arguments.</p>
</dd></dl>

<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.setFillLevel">
<code class="descname">setFillLevel</code><span class="sig-paren">(</span><em>level</em><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.setFillLevel" title="Permalink to this definition"></a></dt>
<dd><p>Set the level filled to when filling under the curve</p>
</dd></dl>

<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.setPen">
<code class="descname">setPen</code><span class="sig-paren">(</span><em>*args</em>, <em>**kargs</em><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.setPen" title="Permalink to this definition"></a></dt>
<dd><p>Set the pen used to draw the curve.</p>
</dd></dl>

<dl class="method">
<dt id="pyqtgraph.PlotCurveItem.setShadowPen">
<code class="descname">setShadowPen</code><span class="sig-paren">(</span><em>*args</em>, <em>**kargs</em><span class="sig-paren">)</span><a class="headerlink" href="#pyqtgraph.PlotCurveItem.setShadowPen" title="Permalink to this definition"></a></dt>
<dd><p>Set the shadow pen used to draw behind tyhe primary pen.
This pen must have a larger width than the primary 
pen to be visible.</p>
</dd></dl>

</dd></dl>

</div>


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