class_qwt_alpha_color_map.html

QWT5.01用于Qt开发的二维图形库程序

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<dl compact><dt><b>Returns:</b></dt><dd>the color </dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_alpha_color_map.html#372ba8791102270991473897fb36a965">setColor()</a> </dd></dl>

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Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00465">465</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>.    </td>
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<a class="anchor" name="75c4858f181f327778736b6ebb9f2745"></a><!-- doxytag: member="QwtAlphaColorMap::copy" ref="75c4858f181f327778736b6ebb9f2745" args="() const " --><p>
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          <td class="md" nowrap valign="top"><a class="el" href="class_qwt_color_map.html">QwtColorMap</a> * QwtAlphaColorMap::copy           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const<code> [virtual]</code></td>
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Clone the color map. 
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Implements <a class="el" href="class_qwt_color_map.html#97c746ff74f5fe96867dde5bde3e23f5">QwtColorMap</a>.
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Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00441">441</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>.
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References <a class="el" href="qwt__color__map_8cpp-source.html#l00402">QwtAlphaColorMap()</a>.    </td>
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<a class="anchor" name="7d7a1a4648d4d61604677bb772820617"></a><!-- doxytag: member="QwtAlphaColorMap::operator=" ref="7d7a1a4648d4d61604677bb772820617" args="(const QwtAlphaColorMap &amp;)" --><p>
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          <td class="md" nowrap valign="top"><a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp; QwtAlphaColorMap::operator=           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_alpha_color_map.html">QwtAlphaColorMap</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>other</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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Assignment operator <dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>other</em>&nbsp;</td><td>Other color map </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>*this </dd></dl>

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Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00432">432</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>.
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References <a class="el" href="qwt__color__map_8h-source.html#l00181">d_data</a>.    </td>
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<a class="anchor" name="ec09e7fc85a746653d4065c736166459"></a><!-- doxytag: member="QwtAlphaColorMap::rgb" ref="ec09e7fc85a746653d4065c736166459" args="(const QwtDoubleInterval &amp;, double value) const " --><p>
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          <td class="md" nowrap valign="top">QRgb QwtAlphaColorMap::rgb           </td>
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          <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &amp;&nbsp;</td>
          <td class="mdname" nowrap> <em>interval</em>, </td>
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          <td class="md" nowrap>double&nbsp;</td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"> const<code> [virtual]</code></td>
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Map a value of a given interval into a alpha value. 
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alpha := (value - interval.minValue()) / interval.width();<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <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>
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<dl compact><dt><b>Returns:</b></dt><dd>rgb value, with an alpha value </dd></dl>

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Implements <a class="el" href="class_qwt_color_map.html#be172f151f0a8c24f4a7e0908b0b983f">QwtColorMap</a>.
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Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00479">479</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>.
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References <a class="el" href="qwt__double__interval_8h-source.html#l00200">QwtDoubleInterval::isValid()</a>, <a class="el" href="qwt__double__interval_8h-source.html#l00128">QwtDoubleInterval::minValue()</a>, and <a class="el" href="qwt__double__interval_8h-source.html#l00146">QwtDoubleInterval::width()</a>.    </td>
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<a class="anchor" name="372ba8791102270991473897fb36a965"></a><!-- doxytag: member="QwtAlphaColorMap::setColor" ref="372ba8791102270991473897fb36a965" args="(const QColor &amp;)" --><p>
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          <td class="md" nowrap valign="top">void QwtAlphaColorMap::setColor           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const QColor &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>color</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
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Set the color<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>color</em>&nbsp;</td><td>Color </td></tr>
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<dl 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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Definition at line <a class="el" href="qwt__color__map_8cpp-source.html#l00455">455</a> of file <a class="el" href="qwt__color__map_8cpp-source.html">qwt_color_map.cpp</a>.    </td>
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