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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>Qwt User's Guide: QwtScaleDiv Class Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.4.6 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li id="current"><a href="classes.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="classes.html"><span>Alphabetical List</span></a></li> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>QwtScaleDiv Class Reference</h1><!-- doxytag: class="QwtScaleDiv" --><a href="class_qwt_scale_div-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>A class representing a scale division. <p>A scale division consists of its limits and 3 list of tick values qualified as major, medium and minor ticks.<p>In most cases scale divisions are calculated by a <a class="el" href="class_qwt_scale_engine.html">QwtScaleEngine</a>.<p><dl compact><dt><b>See also:</b></dt><dd>QwtScaleEngine::subDivideInto, QwtScaleEngine::subDivide </dd></dl><p><p>Definition at line <a class="el" href="qwt__scale__div_8h-source.html#l00029">29</a> of file <a class="el" href="qwt__scale__div_8h-source.html">qwt_scale_div.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Types</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#f21aedaa886dd5e067cf63505838736c">TickType</a> { <br> <b>NoTick</b> = -1, <br> <b>MinorTick</b>, <br> <b>MediumTick</b>, <br> <b>MajorTick</b>, <br> <b>NTickTypes</b><br> }</td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#e986a8a451440876b60db561457c952f">QwtScaleDiv</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#202460ccb320a9781068494a8ab9c6a5">QwtScaleDiv</a> (const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &, QwtValueList[NTickTypes])</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#839ec8a73043af53796519e3aef3ab00">QwtScaleDiv</a> (double lBound, double rBound, QwtValueList[NTickTypes])</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#b8880b60a0cb338e9ec838c5e12a09a7">operator==</a> (const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> &s) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#9315e9450cad83a60a4e4818e8d22e56">operator!=</a> (const <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> &s) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#a3b6edf00144cdc0a59fbc91784faec3">lBound</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#94287d3de0b107e66beea42cfeb1caef">hBound</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#be63aa19b346a4683ab19bf59a5bb37c">range</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9fe271ba1bee08d01033ce964c3216c1"></a><!-- doxytag: member="QwtScaleDiv::contains" ref="9fe271ba1bee08d01033ce964c3216c1" args="(double v) const " -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#9fe271ba1bee08d01033ce964c3216c1">contains</a> (double v) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">const QwtValueList & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#c6310b93e4b505e62d2141ba6a8e90ee">ticks</a> (int type) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#429d3b6004f06c59530c084a9aecf2bb">invalidate</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#22f6955b5d2c73a91a8f01ad49cd4c39">isValid</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_div.html#1ea38d52d5836fd4376f480180973786">invert</a> ()</td></tr></table><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="e986a8a451440876b60db561457c952f"></a><!-- doxytag: member="QwtScaleDiv::QwtScaleDiv" ref="e986a8a451440876b60db561457c952f" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtScaleDiv::QwtScaleDiv </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [explicit]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Construct an invalid <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> instance. <p><p>Definition at line <a class="el" href="qwt__scale__div_8cpp-source.html#l00015">15</a> of file <a class="el" href="qwt__scale__div_8cpp-source.html">qwt_scale_div.cpp</a>. </td> </tr></table><a class="anchor" name="202460ccb320a9781068494a8ab9c6a5"></a><!-- doxytag: member="QwtScaleDiv::QwtScaleDiv" ref="202460ccb320a9781068494a8ab9c6a5" args="(const QwtDoubleInterval &, QwtValueList[NTickTypes])" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtScaleDiv::QwtScaleDiv </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_double_interval.html">QwtDoubleInterval</a> & </td> <td class="mdname" nowrap> <em>interval</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>QwtValueList </td> <td class="mdname" nowrap> <em>ticks</em>[NTickTypes]</td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"><code> [explicit]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Construct <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> instance.<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> </td><td>Interval </td></tr> <tr><td valign="top"></td><td valign="top"><em>ticks</em> </td><td>List of major, medium and minor ticks </td></tr> </table></dl><p>Definition at line <a class="el" href="qwt__scale__div_8cpp-source.html#l00028">28</a> of file <a class="el" href="qwt__scale__div_8cpp-source.html">qwt_scale_div.cpp</a>.<p>References <a class="el" href="qwt__scale__div_8cpp-source.html#l00139">ticks()</a>. </td> </tr></table><a class="anchor" name="839ec8a73043af53796519e3aef3ab00"></a><!-- doxytag: member="QwtScaleDiv::QwtScaleDiv" ref="839ec8a73043af53796519e3aef3ab00" args="(double lBound, double rBound, QwtValueList[NTickTypes])" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">QwtScaleDiv::QwtScaleDiv </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">double </td> <td class="mdname" nowrap> <em>lBound</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>double </td> <td class="mdname" nowrap> <em>hBound</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>QwtValueList </td> <td class="mdname" nowrap> <em>ticks</em>[NTickTypes]</td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"><code> [explicit]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Construct <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> instance.<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>lBound</em> </td><td>First interval limit </td></tr> <tr><td valign="top"></td><td valign="top"><em>hBound</em> </td><td>Second interval limit </td></tr> <tr><td valign="top"></td><td valign="top"><em>ticks</em> </td><td>List of major, medium and minor ticks </td></tr> </table></dl><p>Definition at line <a class="el" href="qwt__scale__div_8cpp-source.html#l00046">46</a> of file <a class="el" href="qwt__scale__div_8cpp-source.html">qwt_scale_div.cpp</a>.<p>References <a class="el" href="qwt__scale__div_8cpp-source.html#l00139">ticks()</a>. </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="94287d3de0b107e66beea42cfeb1caef"></a><!-- doxytag: member="QwtScaleDiv::hBound" ref="94287d3de0b107e66beea42cfeb1caef" args="() const " --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">double QwtScaleDiv::hBound </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap> const<code> [inline]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p><dl compact><dt><b>Returns:</b></dt><dd>right bound </dd></dl><dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_scale_div.html#a3b6edf00144cdc0a59fbc91784faec3">QwtScaleDiv::lBound</a> </dd></dl><p>Definition at line <a class="el" href="qwt__scale__div_8h-source.html#l00086">86</a> of file <a class="el" href="qwt__scale__div_8h-source.html">qwt_scale_div.h</a>.<p>Referenced by <a class="el" href="qwt__plot_8cpp-source.html#l00626">QwtPlot::canvasMap()</a>, <a class="el" href="qwt__plot__panner_8cpp-source.html#l00130">QwtPlotPanner::moveCanvas()</a>, <a class="el" href="qwt__plot__zoomer_8cpp-source.html#l00343">QwtPlotZoomer::rescale()</a>, and <a class="el" href="qwt__abstract__scale__draw_8cpp-source.html#l00107">QwtAbstractScaleDraw::setScaleDiv()</a>. </td> </tr></table><a class="anchor" name="429d3b6004f06c59530c084a9aecf2bb"></a><!-- doxytag: member="QwtScaleDiv::invalidate" ref="429d3b6004f06c59530c084a9aecf2bb" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void QwtScaleDiv::invalidate </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr>⌨️ 快捷键说明
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