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libqwt-devel-5.2.0-1mdv2010.0.i586.rpm

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<title>Qwt User&#39;s Guide: QwtAlphaColorMap Class Reference</title>
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<h1>QwtAlphaColorMap Class Reference</h1><!-- doxytag: class="QwtAlphaColorMap" --><!-- doxytag: inherits="QwtColorMap" --><a class="el" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a> variies the alpha value of a color.  
<a href="#_details">More...</a>
<p>
<code>#include &lt;<a class="el" href="qwt__color__map_8h-source.html">qwt_color_map.h</a>&gt;</code>
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<div class="dynheader">
Inheritance diagram for QwtAlphaColorMap:</div>
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<p><center><img src="class_qwt_alpha_color_map__inherit__graph.png" border="0" usemap="#_qwt_alpha_color_map__inherit__map" alt="Inheritance graph"></center>
<map name="_qwt_alpha_color_map__inherit__map">
<area shape="rect" href="class_qwt_color_map.html" title="QwtColorMap is used to map values into colors." alt="" coords="24,8,128,32"></map>
<center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center></div>

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<a href="class_qwt_alpha_color_map-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#f78213a5ff1ebef8a8d4447b0987bf32">QwtAlphaColorMap</a> (const QColor &amp;=QColor(Qt::gray))</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#266d1009f36e17f8022077c469fa31a5">QwtAlphaColorMap</a> (const <a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp;)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#c6445d25b9df0b565383b8189691bbad">~QwtAlphaColorMap</a> ()</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#7d7a1a4648d4d61604677bb772820617">operator=</a> (const <a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp;)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="class_qwt_color_map.html">QwtColorMap</a> *&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#75c4858f181f327778736b6ebb9f2745">copy</a> () const </td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">void&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#372ba8791102270991473897fb36a965">setColor</a> (const QColor &amp;)</td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">QColor&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#4a706714abbd4d82a9a2201a9ecf7aaf">color</a> () const </td></tr>

<tr><td class="memItemLeft" nowrap align="right" valign="top">virtual QRgb&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_alpha_color_map.html#ec09e7fc85a746653d4065c736166459">rgb</a> (const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &amp;, double value) const </td></tr>

</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
<a class="el" href="class_qwt_alpha_color_map.html" title="QwtAlphaColorMap variies the alpha value of a color.">QwtAlphaColorMap</a> variies the alpha value of a color. <hr><h2>Constructor &amp; Destructor Documentation</h2>
<a class="anchor" name="f78213a5ff1ebef8a8d4447b0987bf32"></a><!-- doxytag: member="QwtAlphaColorMap::QwtAlphaColorMap" ref="f78213a5ff1ebef8a8d4447b0987bf32" args="(const QColor &amp;=QColor(Qt::gray))" -->
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          <td class="memname">QwtAlphaColorMap::QwtAlphaColorMap           </td>
          <td>(</td>
          <td class="paramtype">const QColor &amp;&nbsp;</td>
          <td class="paramname"> <em>color</em> = <code>QColor(Qt::gray)</code>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
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<p>
Constructor <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>color</em>&nbsp;</td><td>Color of the map </td></tr>
  </table>
</dl>

</div>
</div><p>
<a class="anchor" name="266d1009f36e17f8022077c469fa31a5"></a><!-- doxytag: member="QwtAlphaColorMap::QwtAlphaColorMap" ref="266d1009f36e17f8022077c469fa31a5" args="(const QwtAlphaColorMap &amp;)" -->
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          <td class="memname">QwtAlphaColorMap::QwtAlphaColorMap           </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>other</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
        </tr>
      </table>
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<p>
Copy constructor <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>other</em>&nbsp;</td><td>Other color map </td></tr>
  </table>
</dl>

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</div><p>
<a class="anchor" name="c6445d25b9df0b565383b8189691bbad"></a><!-- doxytag: member="QwtAlphaColorMap::~QwtAlphaColorMap" ref="c6445d25b9df0b565383b8189691bbad" args="()" -->
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          <td class="memname">QwtAlphaColorMap::~QwtAlphaColorMap           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td><code> [virtual]</code></td>
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<p>
Destructor. 
<p>

</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="4a706714abbd4d82a9a2201a9ecf7aaf"></a><!-- doxytag: member="QwtAlphaColorMap::color" ref="4a706714abbd4d82a9a2201a9ecf7aaf" args="() const " -->
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          <td class="memname">QColor QwtAlphaColorMap::color           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const</td>
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<p>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>the color </dd></dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_alpha_color_map.html#372ba8791102270991473897fb36a965">setColor()</a> </dd></dl>

</div>
</div><p>
<a class="anchor" name="75c4858f181f327778736b6ebb9f2745"></a><!-- doxytag: member="QwtAlphaColorMap::copy" ref="75c4858f181f327778736b6ebb9f2745" args="() const " -->
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          <td class="memname"><a class="el" href="class_qwt_color_map.html">QwtColorMap</a> * QwtAlphaColorMap::copy           </td>
          <td>(</td>
          <td class="paramname">          </td>
          <td>&nbsp;)&nbsp;</td>
          <td> const<code> [virtual]</code></td>
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<p>
Clone the color map. 
<p>

<p>Implements <a class="el" href="class_qwt_color_map.html#97c746ff74f5fe96867dde5bde3e23f5">QwtColorMap</a>.</p>

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</div><p>
<a class="anchor" name="7d7a1a4648d4d61604677bb772820617"></a><!-- doxytag: member="QwtAlphaColorMap::operator=" ref="7d7a1a4648d4d61604677bb772820617" args="(const QwtAlphaColorMap &amp;)" -->
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          <td class="memname"><a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp; QwtAlphaColorMap::operator=           </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>other</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
        </tr>
      </table>
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<p>
Assignment operator <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>other</em>&nbsp;</td><td>Other color map </td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>*this </dd></dl>

</div>
</div><p>
<a class="anchor" name="ec09e7fc85a746653d4065c736166459"></a><!-- doxytag: member="QwtAlphaColorMap::rgb" ref="ec09e7fc85a746653d4065c736166459" args="(const QwtDoubleInterval &amp;, double value) const " -->
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          <td class="memname">QRgb QwtAlphaColorMap::rgb           </td>
          <td>(</td>
          <td class="paramtype">const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &amp;&nbsp;</td>
          <td class="paramname"> <em>interval</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">double&nbsp;</td>
          <td class="paramname"> <em>value</em></td><td>&nbsp;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td><td> const<code> [virtual]</code></td>
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<p>
Map a value of a given interval into a alpha value. 
<p>
alpha := (value - interval.minValue()) / interval.width();<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>interval</em>&nbsp;</td><td>Range for all values </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>value</em>&nbsp;</td><td>Value to map into a rgb value </td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>rgb value, with an alpha value </dd></dl>

<p>Implements <a class="el" href="class_qwt_color_map.html#be172f151f0a8c24f4a7e0908b0b983f">QwtColorMap</a>.</p>

</div>
</div><p>
<a class="anchor" name="372ba8791102270991473897fb36a965"></a><!-- doxytag: member="QwtAlphaColorMap::setColor" ref="372ba8791102270991473897fb36a965" args="(const QColor &amp;)" -->
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          <td class="memname">void QwtAlphaColorMap::setColor           </td>
          <td>(</td>
          <td class="paramtype">const QColor &amp;&nbsp;</td>
          <td class="paramname"> <em>color</em>          </td>
          <td>&nbsp;)&nbsp;</td>
          <td></td>
        </tr>
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<p>
Set the color<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>color</em>&nbsp;</td><td>Color </td></tr>
  </table>
</dl>
<dl class="see" compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_alpha_color_map.html#4a706714abbd4d82a9a2201a9ecf7aaf">color()</a> </dd></dl>

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