class_qwt_double_interval.html

QWT5.01用于Qt开发的二维图形库程序

<p>
Union of two intervals <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_double_interval.html#f6f3a0baf79d261237fb4aca2f099716">unite</a> </dd></dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8h-source.html#l00165">165</a> of file <a class="el" href="qwt__double__interval_8h-source.html">qwt_double_interval.h</a>.
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References <a class="el" href="qwt__double__interval_8cpp-source.html#l00063">unite()</a>.    </td>
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<a class="anchor" name="a824f64ce1f33a025d60e1810c956f09"></a><!-- doxytag: member="QwtDoubleInterval::setInterval" ref="a824f64ce1f33a025d60e1810c956f09" args="(double minValue, double maxValue)" --><p>
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          <td class="md" nowrap valign="top">void QwtDoubleInterval::setInterval           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname" nowrap> <em>minValue</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>maxValue</em></td>
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          <td class="md"></td>
          <td class="md">)&nbsp;</td>
          <td class="md" colspan="2"><code> [inline]</code></td>
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<p>
Assign the limits of the interval<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>minValue</em>&nbsp;</td><td>Minimum value </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>maxValue</em>&nbsp;</td><td>Maximum value </td></tr>
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<p>
Definition at line <a class="el" href="qwt__double__interval_8h-source.html#l00101">101</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__scale__engine_8cpp-source.html#l00636">QwtLog10ScaleEngine::autoScale()</a>.    </td>
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<a class="anchor" name="34863ae20465138c887f6de55a5f1bed"></a><!-- doxytag: member="QwtDoubleInterval::setMaxValue" ref="34863ae20465138c887f6de55a5f1bed" args="(double)" --><p>
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          <td class="md" nowrap valign="top">void QwtDoubleInterval::setMaxValue           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>maxValue</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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<p>
Assign the upper limit of the interval<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
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    <tr><td valign="top"></td><td valign="top"><em>maxValue</em>&nbsp;</td><td>Maximum value </td></tr>
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Definition at line <a class="el" href="qwt__double__interval_8h-source.html#l00122">122</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__scale__engine_8cpp-source.html#l00423">QwtLinearScaleEngine::autoScale()</a>.    </td>
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<a class="anchor" name="610a87e9921738cf3a4ef1f4cbd96f02"></a><!-- doxytag: member="QwtDoubleInterval::setMinValue" ref="610a87e9921738cf3a4ef1f4cbd96f02" args="(double)" --><p>
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          <td class="md" nowrap valign="top">void QwtDoubleInterval::setMinValue           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>minValue</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap><code> [inline]</code></td>
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<p>
Assign the lower limit of the interval<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>minValue</em>&nbsp;</td><td>Minimum value </td></tr>
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</dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8h-source.html#l00112">112</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__scale__engine_8cpp-source.html#l00423">QwtLinearScaleEngine::autoScale()</a>.    </td>
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<a class="anchor" name="762d619c1af104da8b73c6009b7cd669"></a><!-- doxytag: member="QwtDoubleInterval::symmetrize" ref="762d619c1af104da8b73c6009b7cd669" args="(double value) const " --><p>
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          <td class="md" nowrap valign="top"><a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> QwtDoubleInterval::symmetrize           </td>
          <td class="md" valign="top">(&nbsp;</td>
          <td class="md" nowrap valign="top">double&nbsp;</td>
          <td class="mdname1" valign="top" nowrap> <em>value</em>          </td>
          <td class="md" valign="top">&nbsp;)&nbsp;</td>
          <td class="md" nowrap> const</td>
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<p>
Adjust the limit that is closer to value, so that value becomes the center of the interval.<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>value</em>&nbsp;</td><td>Center </td></tr>
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<dl compact><dt><b>Returns:</b></dt><dd>Interval with value as center </dd></dl>

<p>
Definition at line <a class="el" href="qwt__double__interval_8cpp-source.html#l00140">140</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>, 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#l00423">QwtLinearScaleEngine::autoScale()</a>.    </td>
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<a class="anchor" name="f6f3a0baf79d261237fb4aca2f099716"></a><!-- doxytag: member="QwtDoubleInterval::unite" ref="f6f3a0baf79d261237fb4aca2f099716" 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::unite           </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>
Unite 2 intervals. 
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<p>
Definition at line <a class="el" href="qwt__double__interval_8cpp-source.html#l00063">63</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#l00165">operator|()</a>.    </td>
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<a class="anchor" name="b5d610e0d1fc9a5a3bc020dd39326327"></a><!-- doxytag: member="QwtDoubleInterval::width" ref="b5d610e0d1fc9a5a3bc020dd39326327" args="() const " --><p>
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          <td class="md" nowrap valign="top">double QwtDoubleInterval::width           </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>
Return the width of an interval The width of invalid intervals is 0.0, otherwise the result is <a class="el" href="class_qwt_double_interval.html#8fd8629d76f24d5494e59458cd79c4e2">maxValue()</a> - <a class="el" href="class_qwt_double_interval.html#2d7d56e81ee75911f176c94f6aaf4b8b">minValue()</a>.<p>
<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#l00146">146</a> of file <a class="el" href="qwt__double__interval_8h-source.html">qwt_double_interval.h</a>.
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References <a class="el" href="qwt__double__interval_8h-source.html#l00200">isValid()</a>.
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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>, <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__scale__engine_8cpp-source.html#l00693">QwtLog10ScaleEngine::divideScale()</a>, <a class="el" href="qwt__scale__engine_8cpp-source.html#l00468">QwtLinearScaleEngine::divideScale()</a>, <a class="el" href="qwt__color__map_8cpp-source.html#l00479">QwtAlphaColorMap::rgb()</a>, and <a class="el" href="qwt__color__map_8cpp-source.html#l00357">QwtLinearColorMap::rgb()</a>.    </td>
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