class_qwt_spline_curve_fitter.html
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<title>Qwt User's Guide: QwtSplineCurveFitter Class Reference</title>
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<h1>QwtSplineCurveFitter Class Reference</h1> </div>
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<div class="contents">
<!-- doxytag: class="QwtSplineCurveFitter" --><!-- doxytag: inherits="QwtCurveFitter" -->
<p>A curve fitter using cubic splines.
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="qwt__curve__fitter_8h_source.html">qwt_curve_fitter.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for QwtSplineCurveFitter:</div>
<div class="dyncontent">
<div class="center"><img src="class_qwt_spline_curve_fitter__inherit__graph.png" border="0" usemap="#_qwt_spline_curve_fitter_inherit__map" alt="Inheritance graph"/></div>
<map name="_qwt_spline_curve_fitter_inherit__map" id="_qwt_spline_curve_fitter_inherit__map">
<area shape="rect" id="node2" href="class_qwt_curve_fitter.html" title="Abstract base class for a curve fitter." alt="" coords="23,5,129,35"/></map>
<center><span class="legend">[<a href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="class_qwt_spline_curve_fitter-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-types"></a>
Public Types</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">enum  </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8">FitMode</a> { <br/>
  <a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8ae19b8325da178d410cf10b04ed5a5df6">Auto</a>,
<br/>
  <a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8a97f3e821b70470f056b60a883229ec13">Spline</a>,
<br/>
  <a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8a877f71e694ae9a2e33533a3fb5065c66">ParametricSpline</a>
<br/>
}</td></tr>
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual QPolygonF </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a14d64180d7777d0cd9c2adf81e120140">fitCurve</a> (const QPolygonF &) const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8">FitMode</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a473468f2151839f3290975f6b18f1c4f">fitMode</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a98ae80240b254df85dcc44e1f3e4e830">QwtSplineCurveFitter</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a8381be57ee16b5a2bdacafbd5d71908b">setFitMode</a> (<a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8">FitMode</a>)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a7f819ad010b19d58179655e4ceb1c6f1">setSpline</a> (const <a class="el" href="class_qwt_spline.html">QwtSpline</a> &)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a8ecea80fb540b92cd22b6b0703636460">setSplineSize</a> (int size)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="class_qwt_spline.html">QwtSpline</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#ac501260a25953e1ded6bbc84c3250fa8">spline</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">const <a class="el" href="class_qwt_spline.html">QwtSpline</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a7e5211e9e84df705d8bbbc7a57fbfa6d">spline</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a09e5cb291c90db0aa8e6e51377bc9308">splineSize</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_spline_curve_fitter.html#a933ecbf859698978104d0dd4ec2a2f6a">~QwtSplineCurveFitter</a> ()</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>A curve fitter using cubic splines. </p>
</div><hr/><h2>Member Enumeration Documentation</h2>
<a class="anchor" id="a8c5e6858f885b5691c30092a950879a8"></a><!-- doxytag: member="QwtSplineCurveFitter::FitMode" ref="a8c5e6858f885b5691c30092a950879a8" args="" -->
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<td class="memname">enum <a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8">QwtSplineCurveFitter::FitMode</a></td>
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<div class="memdoc">
<p>Spline type The default setting is Auto </p>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#a8381be57ee16b5a2bdacafbd5d71908b">setFitMode()</a>, <a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8">FitMode()</a> </dd></dl>
<dl><dt><b>Enumerator: </b></dt><dd><table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" id="a8c5e6858f885b5691c30092a950879a8ae19b8325da178d410cf10b04ed5a5df6"></a><!-- doxytag: member="Auto" ref="a8c5e6858f885b5691c30092a950879a8ae19b8325da178d410cf10b04ed5a5df6" args="" -->Auto</em> </td><td>
<p>Use the default spline algorithm for polygons with increasing x values ( p[i-1] < p[i] ), otherwise use a parametric spline algorithm. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a8c5e6858f885b5691c30092a950879a8a97f3e821b70470f056b60a883229ec13"></a><!-- doxytag: member="Spline" ref="a8c5e6858f885b5691c30092a950879a8a97f3e821b70470f056b60a883229ec13" args="" -->Spline</em> </td><td>
<p>Use a default spline algorithm. </p>
</td></tr>
<tr><td valign="top"><em><a class="anchor" id="a8c5e6858f885b5691c30092a950879a8a877f71e694ae9a2e33533a3fb5065c66"></a><!-- doxytag: member="ParametricSpline" ref="a8c5e6858f885b5691c30092a950879a8a877f71e694ae9a2e33533a3fb5065c66" args="" -->ParametricSpline</em> </td><td>
<p>Use a parametric spline algorithm. </p>
</td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a98ae80240b254df85dcc44e1f3e4e830"></a><!-- doxytag: member="QwtSplineCurveFitter::QwtSplineCurveFitter" ref="a98ae80240b254df85dcc44e1f3e4e830" args="()" -->
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<td class="memname">QwtSplineCurveFitter::QwtSplineCurveFitter </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</div>
<div class="memdoc">
<p>Constructor. </p>
</div>
</div>
<a class="anchor" id="a933ecbf859698978104d0dd4ec2a2f6a"></a><!-- doxytag: member="QwtSplineCurveFitter::~QwtSplineCurveFitter" ref="a933ecbf859698978104d0dd4ec2a2f6a" args="()" -->
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<td class="memname">QwtSplineCurveFitter::~QwtSplineCurveFitter </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td><code> [virtual]</code></td>
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<div class="memdoc">
<p>Destructor. </p>
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a14d64180d7777d0cd9c2adf81e120140"></a><!-- doxytag: member="QwtSplineCurveFitter::fitCurve" ref="a14d64180d7777d0cd9c2adf81e120140" args="(const QPolygonF &) const " -->
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<td class="memname">QPolygonF QwtSplineCurveFitter::fitCurve </td>
<td>(</td>
<td class="paramtype">const QPolygonF & </td>
<td class="paramname"><em>points</em></td><td>)</td>
<td> const<code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Find a curve which has the best fit to a series of data points</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">points</td><td>Series of data points </td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>Curve points </dd></dl>
<p>Implements <a class="el" href="class_qwt_curve_fitter.html#afa9bf5b328aa553229e204533a60fec0">QwtCurveFitter</a>.</p>
</div>
</div>
<a class="anchor" id="a473468f2151839f3290975f6b18f1c4f"></a><!-- doxytag: member="QwtSplineCurveFitter::fitMode" ref="a473468f2151839f3290975f6b18f1c4f" args="() const " -->
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<td class="memname"><a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8">QwtSplineCurveFitter::FitMode</a> QwtSplineCurveFitter::fitMode </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
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<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Mode representing a spline algorithm </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#a8381be57ee16b5a2bdacafbd5d71908b">setFitMode()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a8381be57ee16b5a2bdacafbd5d71908b"></a><!-- doxytag: member="QwtSplineCurveFitter::setFitMode" ref="a8381be57ee16b5a2bdacafbd5d71908b" args="(FitMode)" -->
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<td class="memname">void QwtSplineCurveFitter::setFitMode </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_qwt_spline_curve_fitter.html#a8c5e6858f885b5691c30092a950879a8">FitMode</a> </td>
<td class="paramname"><em>mode</em></td><td>)</td>
<td></td>
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<p>Select the algorithm used for building the spline</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">mode</td><td>Mode representing a spline algorithm </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#a473468f2151839f3290975f6b18f1c4f">fitMode()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a7f819ad010b19d58179655e4ceb1c6f1"></a><!-- doxytag: member="QwtSplineCurveFitter::setSpline" ref="a7f819ad010b19d58179655e4ceb1c6f1" args="(const QwtSpline &)" -->
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<td class="memname">void QwtSplineCurveFitter::setSpline </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="class_qwt_spline.html">QwtSpline</a> & </td>
<td class="paramname"><em>spline</em></td><td>)</td>
<td></td>
</tr>
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<p>Assign a spline</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">spline</td><td>Spline </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#ac501260a25953e1ded6bbc84c3250fa8">spline()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a8ecea80fb540b92cd22b6b0703636460"></a><!-- doxytag: member="QwtSplineCurveFitter::setSplineSize" ref="a8ecea80fb540b92cd22b6b0703636460" args="(int size)" -->
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<td class="memname">void QwtSplineCurveFitter::setSplineSize </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>splineSize</em></td><td>)</td>
<td></td>
</tr>
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<p>Assign a spline size ( has to be at least 10 points )</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">splineSize</td><td>Spline size </td></tr>
</table>
</dd>
</dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#a09e5cb291c90db0aa8e6e51377bc9308">splineSize()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="a7e5211e9e84df705d8bbbc7a57fbfa6d"></a><!-- doxytag: member="QwtSplineCurveFitter::spline" ref="a7e5211e9e84df705d8bbbc7a57fbfa6d" args="() const " -->
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<td class="memname">const <a class="el" href="class_qwt_spline.html">QwtSpline</a> & QwtSplineCurveFitter::spline </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Spline </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#a7f819ad010b19d58179655e4ceb1c6f1">setSpline()</a> </dd></dl>
</div>
</div>
<a class="anchor" id="ac501260a25953e1ded6bbc84c3250fa8"></a><!-- doxytag: member="QwtSplineCurveFitter::spline" ref="ac501260a25953e1ded6bbc84c3250fa8" args="()" -->
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<td class="memname"><a class="el" href="class_qwt_spline.html">QwtSpline</a> & QwtSplineCurveFitter::spline </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
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<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Spline </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#a7f819ad010b19d58179655e4ceb1c6f1">setSpline()</a> </dd></dl>
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<a class="anchor" id="a09e5cb291c90db0aa8e6e51377bc9308"></a><!-- doxytag: member="QwtSplineCurveFitter::splineSize" ref="a09e5cb291c90db0aa8e6e51377bc9308" args="() const " -->
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<td class="memname">int QwtSplineCurveFitter::splineSize </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
</tr>
</table>
</div>
<div class="memdoc">
<dl class="return"><dt><b>Returns:</b></dt><dd>Spline size </dd></dl>
<dl class="see"><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_spline_curve_fitter.html#a8ecea80fb540b92cd22b6b0703636460">setSplineSize()</a> </dd></dl>
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