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<div class="header">
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<a href="#pub-static-methods">Static Public Member Functions</a> &#124;
<a href="class_qwt_scale_arithmetic-members.html">List of all members</a> </div>
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<div class="title">QwtScaleArithmetic Class Reference</div> </div>
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<p>Arithmetic including a tolerance.
<a href="class_qwt_scale_arithmetic.html#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="qwt__scale__engine_8h_source.html">qwt_scale_engine.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a86da4fc0928457d03201d8b520d7d816"><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a86da4fc0928457d03201d8b520d7d816">ceilEps</a> (double value, double intervalSize)</td></tr>
<tr class="separator:a86da4fc0928457d03201d8b520d7d816"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a924d97f2e5db236f43f4d65e430e09c1"><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a924d97f2e5db236f43f4d65e430e09c1">floorEps</a> (double value, double intervalSize)</td></tr>
<tr class="separator:a924d97f2e5db236f43f4d65e430e09c1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a349d85f9c5df08e950827a2fde7da59e"><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a349d85f9c5df08e950827a2fde7da59e">divideEps</a> (double intervalSize, double numSteps)</td></tr>
<tr class="memdesc:a349d85f9c5df08e950827a2fde7da59e"><td class="mdescLeft">&#160;</td><td class="mdescRight">Divide an interval into steps. <a href="class_qwt_scale_arithmetic.html#a349d85f9c5df08e950827a2fde7da59e">More...</a><br /></td></tr>
<tr class="separator:a349d85f9c5df08e950827a2fde7da59e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9d50d78310bbd82289f2558ad436667a"><td class="memItemLeft" align="right" valign="top">static double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_arithmetic.html#a9d50d78310bbd82289f2558ad436667a">divideInterval</a> (double intervalSize, int numSteps, uint base)</td></tr>
<tr class="separator:a9d50d78310bbd82289f2558ad436667a"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Arithmetic including a tolerance. </p>
<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8h_source.html#l00022">22</a> of file <a class="el" href="qwt__scale__engine_8h_source.html">qwt_scale_engine.h</a>.</p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="a86da4fc0928457d03201d8b520d7d816"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a86da4fc0928457d03201d8b520d7d816">&#9670;&nbsp;</a></span>ceilEps()</h2>
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<td class="memname">double QwtScaleArithmetic::ceilEps </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>value</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>intervalSize</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span> </td>
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<p>Ceil a value, relative to an interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>Value to be ceiled </td></tr>
<tr><td class="paramname">intervalSize</td><td>Interval size</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Rounded value</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_scale_arithmetic.html#a924d97f2e5db236f43f4d65e430e09c1">floorEps()</a> </dd></dl>
<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00108">108</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
</div>
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<a id="a349d85f9c5df08e950827a2fde7da59e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a349d85f9c5df08e950827a2fde7da59e">&#9670;&nbsp;</a></span>divideEps()</h2>
<div class="memitem">
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<td class="memname">double QwtScaleArithmetic::divideEps </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>intervalSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>numSteps</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span> </td>
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<p>Divide an interval into steps. </p>
<p><img class="formulaInl" alt="$stepSize = (intervalSize - intervalSize * 10e^{-6}) / numSteps$" src="form_3.svg"/></p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">intervalSize</td><td>Interval size </td></tr>
<tr><td class="paramname">numSteps</td><td>Number of steps </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Step size </dd></dl>
<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00143">143</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
</div>
</div>
<a id="a9d50d78310bbd82289f2558ad436667a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9d50d78310bbd82289f2558ad436667a">&#9670;&nbsp;</a></span>divideInterval()</h2>
<div class="memitem">
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<td class="memname">double QwtScaleArithmetic::divideInterval </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>intervalSize</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int&#160;</td>
<td class="paramname"><em>numSteps</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint&#160;</td>
<td class="paramname"><em>base</em>&#160;</td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span> </td>
</tr>
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<p>Calculate a step size for a given interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">intervalSize</td><td>Interval size </td></tr>
<tr><td class="paramname">numSteps</td><td>Number of steps </td></tr>
<tr><td class="paramname">base</td><td>Base for the division ( usually 10 )</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Calculated step size </dd></dl>
<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00160">160</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
</div>
</div>
<a id="a924d97f2e5db236f43f4d65e430e09c1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a924d97f2e5db236f43f4d65e430e09c1">&#9670;&nbsp;</a></span>floorEps()</h2>
<div class="memitem">
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<td class="memname">double QwtScaleArithmetic::floorEps </td>
<td>(</td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>value</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>intervalSize</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span> </td>
</tr>
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</div><div class="memdoc">
<p>Floor a value, relative to an interval</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">value</td><td>Value to be floored </td></tr>
<tr><td class="paramname">intervalSize</td><td>Interval size</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Rounded value </dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="class_qwt_scale_arithmetic.html#a924d97f2e5db236f43f4d65e430e09c1">floorEps()</a> </dd></dl>
<p class="definition">Definition at line <a class="el" href="qwt__scale__engine_8cpp_source.html#l00126">126</a> of file <a class="el" href="qwt__scale__engine_8cpp_source.html">qwt_scale_engine.cpp</a>.</p>
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