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<div class="section" id="plotitem">
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<h1>PlotItem<a class="headerlink" href="#plotitem" title="Permalink to this headline">¶</a></h1>
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<dl class="class">
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<dt id="pyqtgraph.PlotItem">
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<em class="property">class </em><tt class="descclassname">pyqtgraph.</tt><tt class="descname">PlotItem</tt><big>(</big><em>parent=None</em>, <em>name=None</em>, <em>labels=None</em>, <em>title=None</em>, <em>**kargs</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem" title="Permalink to this definition">¶</a></dt>
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<dd><dl class="method">
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<dt id="pyqtgraph.PlotItem.__init__">
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<tt class="descname">__init__</tt><big>(</big><em>parent=None</em>, <em>name=None</em>, <em>labels=None</em>, <em>title=None</em>, <em>**kargs</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.__init__" title="Permalink to this definition">¶</a></dt>
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<dd></dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.addAvgCurve">
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<tt class="descname">addAvgCurve</tt><big>(</big><em>curve</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.addAvgCurve" title="Permalink to this definition">¶</a></dt>
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<dd><p>Add a single curve into the pool of curves averaged together</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.enableAutoScale">
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<tt class="descname">enableAutoScale</tt><big>(</big><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.enableAutoScale" title="Permalink to this definition">¶</a></dt>
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<dd><p>Enable auto-scaling. The plot will continuously scale to fit the boundaries of its data.</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.linkXChanged">
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<tt class="descname">linkXChanged</tt><big>(</big><em>plot</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.linkXChanged" title="Permalink to this definition">¶</a></dt>
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<dd><p>Called when a linked plot has changed its X scale</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.linkYChanged">
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<tt class="descname">linkYChanged</tt><big>(</big><em>plot</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.linkYChanged" title="Permalink to this definition">¶</a></dt>
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<dd><p>Called when a linked plot has changed its Y scale</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.plot">
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<tt class="descname">plot</tt><big>(</big><em>*args</em>, <em>**kargs</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.plot" title="Permalink to this definition">¶</a></dt>
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<dd><p>Add and return a new plot.
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See PlotDataItem.__init__ for data arguments</p>
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<dl class="docutils">
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<dt>Extra allowed arguments are:</dt>
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<dd>clear - clear all plots before displaying new data
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params - meta-parameters to associate with this data</dd>
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</dl>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.setLabel">
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<tt class="descname">setLabel</tt><big>(</big><em>axis</em>, <em>text=None</em>, <em>units=None</em>, <em>unitPrefix=None</em>, <em>**args</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.setLabel" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set the label for an axis. Basic HTML formatting is allowed.
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Arguments:</p>
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<blockquote>
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<p>axis - must be one of ‘left’, ‘bottom’, ‘right’, or ‘top’
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text - text to display along the axis. HTML allowed.
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units - units to display after the title. If units are given,</p>
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<blockquote>
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then an SI prefix will be automatically appended
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and the axis values will be scaled accordingly.
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(ie, use ‘V’ instead of ‘mV’; ‘m’ will be added automatically)</blockquote>
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</blockquote>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.setTitle">
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<tt class="descname">setTitle</tt><big>(</big><em>title=None</em>, <em>**args</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.setTitle" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set the title of the plot. Basic HTML formatting is allowed.
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If title is None, then the title will be hidden.</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.setXLink">
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<tt class="descname">setXLink</tt><big>(</big><em>plot=None</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.setXLink" title="Permalink to this definition">¶</a></dt>
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<dd><p>Link this plot’s X axis to another plot (pass either the PlotItem/PlotWidget or the registered name of the plot)</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.setYLink">
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<tt class="descname">setYLink</tt><big>(</big><em>plot=None</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.setYLink" title="Permalink to this definition">¶</a></dt>
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<dd><p>Link this plot’s Y axis to another plot (pass either the PlotItem/PlotWidget or the registered name of the plot)</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.showAxis">
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<tt class="descname">showAxis</tt><big>(</big><em>axis</em>, <em>show=True</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.showAxis" title="Permalink to this definition">¶</a></dt>
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<dd><p>Show or hide one of the plot’s axes.
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axis must be one of ‘left’, ‘bottom’, ‘right’, or ‘top’</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.showLabel">
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<tt class="descname">showLabel</tt><big>(</big><em>axis</em>, <em>show=True</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.showLabel" title="Permalink to this definition">¶</a></dt>
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<dd><p>Show or hide one of the plot’s axis labels (the axis itself will be unaffected).
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axis must be one of ‘left’, ‘bottom’, ‘right’, or ‘top’</p>
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</dd></dl>
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<dl class="attribute">
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<dt id="pyqtgraph.PlotItem.sigRangeChanged">
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<tt class="descname">sigRangeChanged</tt><a class="headerlink" href="#pyqtgraph.PlotItem.sigRangeChanged" title="Permalink to this definition">¶</a></dt>
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<dd><p>Plot graphics item that can be added to any graphics scene. Implements axis titles, scales, interactive viewbox.</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.updatePlotList">
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<tt class="descname">updatePlotList</tt><big>(</big><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.updatePlotList" title="Permalink to this definition">¶</a></dt>
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<dd><p>Update the list of all plotWidgets in the “link” combos</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.updateXScale">
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<tt class="descname">updateXScale</tt><big>(</big><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.updateXScale" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set plot to autoscale or not depending on state of radio buttons</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.updateYScale">
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<tt class="descname">updateYScale</tt><big>(</big><em>b=False</em><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.updateYScale" title="Permalink to this definition">¶</a></dt>
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<dd><p>Set plot to autoscale or not depending on state of radio buttons</p>
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</dd></dl>
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<dl class="method">
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<dt id="pyqtgraph.PlotItem.viewGeometry">
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<tt class="descname">viewGeometry</tt><big>(</big><big>)</big><a class="headerlink" href="#pyqtgraph.PlotItem.viewGeometry" title="Permalink to this definition">¶</a></dt>
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<dd><p>return the screen geometry of the viewbox</p>
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</dd></dl>
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