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qtcharts5-doc-5.9.4-1.mga6.noarch.rpm

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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 >LogValueAxis QML Type</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
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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="#signals">Signals</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
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<h1 class="title">LogValueAxis QML Type</h1>
<span class="subtitle"></span>
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<p>Adds a logarithmic scale to a chart's axis. <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-logvalueaxis.html"><a href="qlogvalueaxis.html">QLogValueAxis</a></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Inherits:</td><td class="memItemRight bottomAlign"> <p><a href="qml-qtcharts-abstractaxis.html">AbstractAxis</a></p>
</td></tr></table></div><ul>
<li><a href="qml-qtcharts-logvalueaxis-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-logvalueaxis.html#base-prop">base</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtcharts-logvalueaxis.html#labelFormat-prop">labelFormat</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtcharts-logvalueaxis.html#max-prop">max</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtcharts-logvalueaxis.html#min-prop">min</a></b></b> : real</li>
<li class="fn"><b><b><a href="qml-qtcharts-logvalueaxis.html#minorTickCount-prop">minorTickCount</a></b></b> : int</li>
<li class="fn"><b><b><a href="qml-qtcharts-logvalueaxis.html#tickCount-prop">tickCount</a></b></b> : int</li>
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<h2 id="signals">Signals</h2>
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<li class="fn"><b><b><a href="qml-qtcharts-logvalueaxis.html#minorTickCountChanged-signal">minorTickCountChanged</a></b></b>(int <i>minorTickCount</i>)</li>
<li class="fn"><b><b><a href="qml-qtcharts-logvalueaxis.html#tickCountChanged-signal">tickCountChanged</a></b></b>(int <i>tickCount</i>)</li>
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<a name="details"></a>
<h2 id="details">Detailed Description</h2>
<p>A logarithmic scale is a nonlinear scale that is based on orders of magnitude, so that each tick mark on the axis is the previous tick mark multiplied by a value.</p>
<p><b>Note: </b>If a <a href="qml-qtcharts-logvalueaxis.html">LogValueAxis</a> type is attached to a series with one or more points with negative or zero values on the associated dimension, the series will not be plotted at all. This is particularly relevant when XYModelMappers are used, since empty cells in models typically contain zero values.</p><!-- @@@LogValueAxis -->
<h2>Property Documentation</h2>
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<a name="base-prop"></a><span class="name">base</span> : <span class="type">real</span></p></td></tr>
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</div><div class="qmldoc"><p>The base of the logarithm.</p>
<p>The value has to be greater than 0 and cannot equal 1.</p>
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<a name="labelFormat-prop"></a><span class="name">labelFormat</span> : <span class="type">real</span></p></td></tr>
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</div><div class="qmldoc"><p>The label format of the axis.</p>
<p>The format string supports the following conversion specifiers, length modifiers, and flags provided by <code>printf()</code> in the standard C++ library: d, i, o, x, X, f, F, e, E, g, G, c.</p>
<p>If <a href="qml-qtcharts-chartview.html#localizeNumbers-prop">ChartView.localizeNumbers</a> is <code>true</code>, the supported specifiers are limited to: d, e, E, f, g, G, and i. Also, only the precision modifier is supported. The rest of the formatting comes from the default QLocale of the application.</p>
<p><b>See also </b>QString::asprintf().</p>
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<a name="max-prop"></a><span class="name">max</span> : <span class="type">real</span></p></td></tr>
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</div><div class="qmldoc"><p>The maximum value on the axis.</p>
<p>When setting this property, the minimum value is adjusted if necessary, to ensure that the range remains valid. The value has to be greater than 0.</p>
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<a name="min-prop"></a><span class="name">min</span> : <span class="type">real</span></p></td></tr>
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</div><div class="qmldoc"><p>The minimum value on the axis.</p>
<p>When setting this property, the maximum value is adjusted if necessary, to ensure that the range remains valid. The value has to be greater than 0.</p>
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<a name="minorTickCount-prop"></a><span class="name">minorTickCount</span> : <span class="type">int</span></p></td></tr>
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</div><div class="qmldoc"><p>The number of minor tick marks on the axis. This indicates how many grid lines are drawn between major ticks on the chart. Labels are not drawn for minor ticks. The default value is 0. Set the value to -1 and the number of grid lines between major ticks will be calculated automatically.</p>
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<tr valign="top" class="odd" id="tickCount-prop">
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<a name="tickCount-prop"></a><span class="name">tickCount</span> : <span class="type">int</span></p></td></tr>
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</div><div class="qmldoc"><p>The number of tick marks on the axis. This indicates how many grid lines are drawn on the chart. This value is read-only.</p>
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<h2>Signal Documentation</h2>
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<a name="minorTickCountChanged-signal"></a><span class="name">minorTickCountChanged</span>(<span class="type">int</span> <i>minorTickCount</i>)</p></td></tr>
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</div><div class="qmldoc"><p>This signal is emitted when the number of minor tick marks on the axis, specified by <i>minorTickCount</i>, changes.</p>
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<a name="tickCountChanged-signal"></a><span class="name">tickCountChanged</span>(<span class="type">int</span> <i>tickCount</i>)</p></td></tr>
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</div><div class="qmldoc"><p>This signal is emitted when the number of tick marks on the axis, specified by <i>tickCount</i>, changes.</p>
</div></div><!-- @@@tickCountChanged -->
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