Peter M. Groen / openbr

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<p>A transformation using pow()  
 <a href="class_qwt_power_transform.html#details">More...</a></p>

<p><code>#include &lt;<a class="el" href="qwt__transform_8h_source.html">qwt_transform.h</a>&gt;</code></p>
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Inheritance diagram for QwtPowerTransform:</div>
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<area shape="rect" id="node2" href="class_qwt_transform.html" title="A transformation between coordinate systems." alt="" coords="23,5,125,32"/></map>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:af29ae09162f70bdf81bc5a6fabcb84ba"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_power_transform.html#af29ae09162f70bdf81bc5a6fabcb84ba">QwtPowerTransform</a> (double exponent)</td></tr>
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<tr class="memitem:a33a82c2e0a67e7463646e7dbb64ccff1"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a33a82c2e0a67e7463646e7dbb64ccff1"></a>
virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_power_transform.html#a33a82c2e0a67e7463646e7dbb64ccff1">~QwtPowerTransform</a> ()</td></tr>
<tr class="memdesc:a33a82c2e0a67e7463646e7dbb64ccff1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor. <br/></td></tr>
<tr class="separator:a33a82c2e0a67e7463646e7dbb64ccff1"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aad3892cb63f5981521184960e240a4f3"><td class="memItemLeft" align="right" valign="top">virtual double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_power_transform.html#aad3892cb63f5981521184960e240a4f3">transform</a> (double value) const </td></tr>
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<tr class="memitem:aae19e2002b08ab09ed177d8ff6753f82"><td class="memItemLeft" align="right" valign="top">virtual double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_power_transform.html#aae19e2002b08ab09ed177d8ff6753f82">invTransform</a> (double value) const </td></tr>
<tr class="separator:aae19e2002b08ab09ed177d8ff6753f82"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1c3833f1f275ac298b3986cddc67055e"><td class="memItemLeft" align="right" valign="top">virtual <a class="el" href="class_qwt_transform.html">QwtTransform</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_power_transform.html#a1c3833f1f275ac298b3986cddc67055e">copy</a> () const </td></tr>
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<tr class="inherit_header pub_methods_class_qwt_transform"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_class_qwt_transform')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="class_qwt_transform.html">QwtTransform</a></td></tr>
<tr class="memitem:aa1fa1ab21d0fc01e06d3a6e462008d0b inherit pub_methods_class_qwt_transform"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa1fa1ab21d0fc01e06d3a6e462008d0b"></a>
&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_transform.html#aa1fa1ab21d0fc01e06d3a6e462008d0b">QwtTransform</a> ()</td></tr>
<tr class="memdesc:aa1fa1ab21d0fc01e06d3a6e462008d0b inherit pub_methods_class_qwt_transform"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor. <br/></td></tr>
<tr class="separator:aa1fa1ab21d0fc01e06d3a6e462008d0b inherit pub_methods_class_qwt_transform"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aa2653db3104e672464dc569592fc14ab inherit pub_methods_class_qwt_transform"><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa2653db3104e672464dc569592fc14ab"></a>
virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_transform.html#aa2653db3104e672464dc569592fc14ab">~QwtTransform</a> ()</td></tr>
<tr class="memdesc:aa2653db3104e672464dc569592fc14ab inherit pub_methods_class_qwt_transform"><td class="mdescLeft">&#160;</td><td class="mdescRight">Destructor. <br/></td></tr>
<tr class="separator:aa2653db3104e672464dc569592fc14ab inherit pub_methods_class_qwt_transform"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2703fc5855720201f46ed9404271a527 inherit pub_methods_class_qwt_transform"><td class="memItemLeft" align="right" valign="top">virtual double&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_transform.html#a2703fc5855720201f46ed9404271a527">bounded</a> (double value) const </td></tr>
<tr class="separator:a2703fc5855720201f46ed9404271a527 inherit pub_methods_class_qwt_transform"><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>A transformation using pow() </p>
<p><a class="el" href="class_qwt_power_transform.html" title="A transformation using pow()">QwtPowerTransform</a> preserves the sign of a value. F.e. a transformation with a factor of 2 transforms a value of -3 to -9 and v.v. Thus <a class="el" href="class_qwt_power_transform.html" title="A transformation using pow()">QwtPowerTransform</a> can be used for scales including negative values. </p>
</div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
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          <td class="memname">QwtPowerTransform::QwtPowerTransform </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>exponent</em></td><td>)</td>
          <td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>Constructor </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">exponent</td><td>Exponent </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
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          <td class="memname"><a class="el" href="class_qwt_transform.html">QwtTransform</a> * QwtPowerTransform::copy </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
          <td> const</td>
        </tr>
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<dl class="section return"><dt>Returns</dt><dd>Clone of the transformation </dd></dl>

<p>Implements <a class="el" href="class_qwt_transform.html#aae011ee4205fa4391459766d88971809">QwtTransform</a>.</p>

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          <td class="memname">double QwtPowerTransform::invTransform </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>value</em></td><td>)</td>
          <td> const</td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">virtual</span></span>  </td>
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<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">value</td><td>Value to be transformed </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Inverse exponentiation preserving the sign </dd></dl>

<p>Implements <a class="el" href="class_qwt_transform.html#a5cfb0a329b8418028baf6974b188d76b">QwtTransform</a>.</p>

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          <td class="memname">double QwtPowerTransform::transform </td>
          <td>(</td>
          <td class="paramtype">double&#160;</td>
          <td class="paramname"><em>value</em></td><td>)</td>
          <td> const</td>
        </tr>
      </table>
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<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">value</td><td>Value to be transformed </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Exponentiation preserving the sign </dd></dl>

<p>Implements <a class="el" href="class_qwt_transform.html#a1093b5856cbc6cf812460535442fb130">QwtTransform</a>.</p>

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