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<td >Qt 5.9</td><td ><a href="qtcharts-index.html">Qt Charts</a></td><td ><a href="qtcharts-qmlmodule.html">QML Types</a></td><td >VXYModelMapper QML Type</td></tr></table><table class="buildversion"><tr>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">VXYModelMapper QML Type</h1>
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<p>A vertical model mapper for <a href="qml-qtcharts-xyseries.html">XYSeries</a>. <a href="#details">More...</a></p>
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<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> import QtCharts 2.2</td></tr><tr><td class="memItemLeft rightAlign topAlign"> Instantiates:</td><td class="memItemRight bottomAlign"> <a href="qml-qtcharts-vxymodelmapper.html"><a href="qvxymodelmapper.html">QVXYModelMapper</a></td></tr></table></div><ul>
<li><a href="qml-qtcharts-vxymodelmapper-members.html">List of all members, including inherited members</a></li>
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<h2 id="properties">Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtcharts-vxymodelmapper.html#firstRow-prop">firstRow</a></b></b> : int</li>
<li class="fn"><b><b><a href="qml-qtcharts-vxymodelmapper.html#model-prop">model</a></b></b> : SomeModel</li>
<li class="fn"><b><b><a href="qml-qtcharts-vxymodelmapper.html#rowCount-prop">rowCount</a></b></b> : int</li>
<li class="fn"><b><b><a href="qml-qtcharts-vxymodelmapper.html#series-prop">series</a></b></b> : XYSeries</li>
<li class="fn"><b><b><a href="qml-qtcharts-vxymodelmapper.html#xColumn-prop">xColumn</a></b></b> : int</li>
<li class="fn"><b><b><a href="qml-qtcharts-vxymodelmapper.html#yColumn-prop">yColumn</a></b></b> : int</li>
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<h2 id="details">Detailed Description</h2>
<p>Model mappers enable using a data model derived from the QAbstractItemModel class as a data source for a chart. A vertical model mapper is used to create a connection between a line, spline, or scatter series and the data model that holds the consecutive data point coordinates in columns.</p>
<p>Both model and series properties can be used to manipulate the data. The model mapper keeps the series and the data model in sync.</p>
<p><b>See also </b><a href="qml-qtcharts-hxymodelmapper.html">HXYModelMapper</a> and <a href="qml-qtcharts-xyseries.html">XYSeries</a>.</p>
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<h2>Property Documentation</h2>
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<a name="firstRow-prop"></a><span class="name">firstRow</span> : <span class="type">int</span></p></td></tr>
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</div><div class="qmldoc"><p>The row of the model that contains the data for the first point of the series. The default value is 0.</p>
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<a name="model-prop"></a><span class="name">model</span> : <span class="type">SomeModel</span></p></td></tr>
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</div><div class="qmldoc"><p>The data model that is used by the mapper. You need to implement the model and expose it to QML.</p>
<p><b>Note: </b>The model has to support adding and removing rows or columns and modifying the data in the cells.</p></div></div><!-- @@@model -->
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<a name="rowCount-prop"></a><span class="name">rowCount</span> : <span class="type">int</span></p></td></tr>
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</div><div class="qmldoc"><p>The number of rows of the model that are mapped as the data for series. The default value is -1 (the number is limited by the number of rows in the model).</p>
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<tr valign="top" class="odd" id="series-prop">
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<a name="series-prop"></a><span class="name">series</span> : <span class="type"><a href="qml-qtcharts-xyseries.html">XYSeries</a></span></p></td></tr>
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</div><div class="qmldoc"><p>The series that is used by the mapper. All the data in the series is discarded when it is set to the mapper. When a new series is specified, the old series is disconnected (but it preserves its data).</p>
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<!-- $$$xColumn -->
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<a name="xColumn-prop"></a><span class="name">xColumn</span> : <span class="type">int</span></p></td></tr>
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</div><div class="qmldoc"><p>The column of the model that contains the x-coordinates of data points. The default value is -1 (invalid mapping).</p>
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<a name="yColumn-prop"></a><span class="name">yColumn</span> : <span class="type">int</span></p></td></tr>
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</div><div class="qmldoc"><p>The column of the model that contains the y-coordinates of data points. The default value is -1 (invalid mapping).</p>
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