class_qwt_double_interval.html

QWT5.01用于Qt开发的二维图形库程序

Referenced by <a class="el" href="qwt__scale__engine_8cpp-source.html#l00636">QwtLog10ScaleEngine::autoScale()</a>, <a class="el" href="qwt__scale__engine_8cpp-source.html#l00423">QwtLinearScaleEngine::autoScale()</a>, and <a class="el" href="qwt__double__interval_8h-source.html#l00188">operator|()</a>.    </td>
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<a class="anchor" name="52488d71ecc5dee5ea0a4106bd7901f4"></a><!-- doxytag: member="QwtDoubleInterval::intersect" ref="52488d71ecc5dee5ea0a4106bd7901f4" args="(const QwtDoubleInterval &amp;) const " --><p>
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          <td class="md" nowrap valign="top"><a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> QwtDoubleInterval::intersect           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const</td>
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<p>
Intersect 2 intervals. 
<p>

<p>
Definition at line <a class="el" href="qwt__double__interval_8cpp-source.html#l00083">83</a> of file <a class="el" href="qwt__double__interval_8cpp-source.html">qwt_double_interval.cpp</a>.
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References <a class="el" href="qwt__double__interval_8h-source.html#l00200">isValid()</a>, <a class="el" href="qwt__double__interval_8h-source.html#l00134">maxValue()</a>, <a class="el" href="qwt__double__interval_8h-source.html#l00128">minValue()</a>, and <a class="el" href="qwt__double__interval_8h-source.html#l00077">QwtDoubleInterval()</a>.
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Referenced by <a class="el" href="qwt__double__interval_8h-source.html#l00155">operator &amp;()</a>.    </td>
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<a class="anchor" name="f5e38d3d8fe79ca8f137df616e36b5d7"></a><!-- doxytag: member="QwtDoubleInterval::intersects" ref="f5e38d3d8fe79ca8f137df616e36b5d7" args="(const QwtDoubleInterval &amp;) const " --><p>
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          <td class="md" nowrap valign="top">bool QwtDoubleInterval::intersects           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &amp;&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>interval</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const</td>
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<p>
Test if two intervals overlap 
<p>
Definition at line <a class="el" href="qwt__double__interval_8cpp-source.html#l00119">119</a> of file <a class="el" href="qwt__double__interval_8cpp-source.html">qwt_double_interval.cpp</a>.
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References <a class="el" href="qwt__double__interval_8h-source.html#l00200">isValid()</a>, <a class="el" href="qwt__double__interval_8h-source.html#l00134">maxValue()</a>, and <a class="el" href="qwt__double__interval_8h-source.html#l00128">minValue()</a>.    </td>
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<a class="anchor" name="4e182e414b506ebbad083a2005c0614c"></a><!-- doxytag: member="QwtDoubleInterval::invalidate" ref="4e182e414b506ebbad083a2005c0614c" args="()" --><p>
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          <td class="md" nowrap valign="top">void QwtDoubleInterval::invalidate           </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><code> [inline]</code></td>
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<p>
Invalidate the interval<p>
The limits are set to interval [0.0, -1.0] <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_double_interval.html#311402213e243b809008faaec00507d5">isValid</a> </dd></dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8h-source.html#l00211">211</a> of file <a class="el" href="qwt__double__interval_8h-source.html">qwt_double_interval.h</a>.    </td>
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<a class="anchor" name="ad0ecc63759dd0cded108b111649601e"></a><!-- doxytag: member="QwtDoubleInterval::inverted" ref="ad0ecc63759dd0cded108b111649601e" args="() const " --><p>
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          <td class="md" nowrap valign="top"><a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> QwtDoubleInterval::inverted           </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</td>
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<p>
Invert the limits of the interval <dl compact><dt><b>Returns:</b></dt><dd>Inverted interval </dd></dl>
<dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_double_interval.html#e4735252fef79bff0bda2dc61fb886c2">normalized</a> </dd></dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8cpp-source.html#l00043">43</a> of file <a class="el" href="qwt__double__interval_8cpp-source.html">qwt_double_interval.cpp</a>.
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References <a class="el" href="qwt__double__interval_8h-source.html#l00077">QwtDoubleInterval()</a>.    </td>
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<a class="anchor" name="fed126a2f37a7a9487574de8c55ab722"></a><!-- doxytag: member="QwtDoubleInterval::isNull" ref="fed126a2f37a7a9487574de8c55ab722" args="() const " --><p>
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          <td class="md" nowrap valign="top">bool QwtDoubleInterval::isNull           </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> [inline]</code></td>
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<dl compact><dt><b>Returns:</b></dt><dd>true, if <a class="el" href="class_qwt_double_interval.html#2d7d56e81ee75911f176c94f6aaf4b8b">minValue()</a> &gt;= <a class="el" href="class_qwt_double_interval.html#8fd8629d76f24d5494e59458cd79c4e2">maxValue()</a> </dd></dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8h-source.html#l00194">194</a> of file <a class="el" href="qwt__double__interval_8h-source.html">qwt_double_interval.h</a>.    </td>
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<a class="anchor" name="311402213e243b809008faaec00507d5"></a><!-- doxytag: member="QwtDoubleInterval::isValid" ref="311402213e243b809008faaec00507d5" args="() const " --><p>
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          <td class="md" nowrap valign="top">bool QwtDoubleInterval::isValid           </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> [inline]</code></td>
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<p>
<dl compact><dt><b>Returns:</b></dt><dd>true, if <a class="el" href="class_qwt_double_interval.html#2d7d56e81ee75911f176c94f6aaf4b8b">minValue()</a> &lt;= <a class="el" href="class_qwt_double_interval.html#8fd8629d76f24d5494e59458cd79c4e2">maxValue()</a> </dd></dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8h-source.html#l00200">200</a> of file <a class="el" href="qwt__double__interval_8h-source.html">qwt_double_interval.h</a>.
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Referenced by <a class="el" href="qwt__color__map_8cpp-source.html#l00370">QwtLinearColorMap::colorIndex()</a>, <a class="el" href="qwt__color__map_8cpp-source.html#l00183">QwtColorMap::colorTable()</a>, <a class="el" href="qwt__scale__engine_8cpp-source.html#l00251">QwtScaleEngine::contains()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00054">contains()</a>, <a class="el" href="qwt__raster__data_8cpp-source.html#l00270">QwtRasterData::contourLines()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00185">extend()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00083">intersect()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00119">intersects()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00159">limited()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00028">normalized()</a>, <a class="el" href="qwt__color__map_8cpp-source.html#l00479">QwtAlphaColorMap::rgb()</a>, <a class="el" href="qwt__scale__engine_8cpp-source.html#l00280">QwtScaleEngine::strip()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00140">symmetrize()</a>, <a class="el" href="qwt__double__interval_8cpp-source.html#l00063">unite()</a>, and <a class="el" href="qwt__double__interval_8h-source.html#l00146">width()</a>.    </td>
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<a class="anchor" name="01ad17798ad6236638a16771405075cd"></a><!-- doxytag: member="QwtDoubleInterval::limited" ref="01ad17798ad6236638a16771405075cd" args="(double minValue, double maxValue) const " --><p>
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          <td class="md" nowrap valign="top"><a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> QwtDoubleInterval::limited           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname" nowrap> <em>lBound</em>, </td>
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          <td class="md" nowrap align="right"></td>
          <td class="md"></td>
          <td class="md" nowrap>double&nbsp;</td>
          <td class="mdname" nowrap> <em>hBound</em></td>
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          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"> const</td>
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<p>
Limit the interval<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>lBound</em>&nbsp;</td><td>Lower limit </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>hBound</em>&nbsp;</td><td>Upper limit</td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>Limited interval </dd></dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8cpp-source.html#l00159">159</a> of file <a class="el" href="qwt__double__interval_8cpp-source.html">qwt_double_interval.cpp</a>.
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References <a class="el" href="qwt__double__interval_8h-source.html#l00200">isValid()</a>, <a class="el" href="qwt__double__interval_8h-source.html#l00134">maxValue()</a>, <a class="el" href="qwt__double__interval_8h-source.html#l00128">minValue()</a>, and <a class="el" href="qwt__double__interval_8h-source.html#l00077">QwtDoubleInterval()</a>.
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Referenced by <a class="el" href="qwt__scale__engine_8cpp-source.html#l00636">QwtLog10ScaleEngine::autoScale()</a>, and <a class="el" href="qwt__scale__engine_8cpp-source.html#l00693">QwtLog10ScaleEngine::divideScale()</a>.    </td>
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<a class="anchor" name="8fd8629d76f24d5494e59458cd79c4e2"></a><!-- doxytag: member="QwtDoubleInterval::maxValue" ref="8fd8629d76f24d5494e59458cd79c4e2" args="() const " --><p>
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