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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: QwtScaleDraw 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>QwtScaleDraw Class Reference</h1><!-- doxytag: class="QwtScaleDraw" --><!-- doxytag: inherits="QwtAbstractScaleDraw" -->Inheritance diagram for QwtScaleDraw:<p><center><img src="class_qwt_scale_draw__inherit__graph.png" border="0" usemap="#_qwt_scale_draw__inherit__map" alt="Inheritance graph"></center><map name="_qwt_scale_draw__inherit__map"><area href="class_qwt_abstract_scale_draw.html" shape="rect" coords="7,8,164,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center>Collaboration diagram for QwtScaleDraw:<p><center><img src="class_qwt_scale_draw__coll__graph.png" border="0" usemap="#_qwt_scale_draw__coll__map" alt="Collaboration graph"></center><map name="_qwt_scale_draw__coll__map"><area href="class_qwt_abstract_scale_draw.html" shape="rect" coords="7,8,164,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="class_qwt_scale_draw-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>A class for drawing scales. <p><a class="el" href="class_qwt_scale_draw.html">QwtScaleDraw</a> can be used to draw linear or logarithmic scales. A scale has a position, an alignment and a length, which can be specified . The labels can be rotated and aligned to the ticks using <a class="el" href="class_qwt_scale_draw.html#bf5881339fddde65a00c1dd391023320">setLabelRotation()</a> and <a class="el" href="class_qwt_scale_draw.html#3df0a1fe4a498ef028a5348e54bfaa7f">setLabelAlignment()</a>.<p>After a scale division has been specified as a <a class="el" href="class_qwt_scale_div.html">QwtScaleDiv</a> object using <a class="el" href="class_qwt_abstract_scale_draw.html#4399aac94a294f5ed6c52114dde00d2f">QwtAbstractScaleDraw::setScaleDiv(const QwtScaleDiv &s)</a>, the scale can be drawn with the <a class="el" href="class_qwt_abstract_scale_draw.html#ca3c3a7499112f52616d0ee8518fa5a6">QwtAbstractScaleDraw::draw()</a> member. <p><p>Definition at line <a class="el" href="qwt__scale__draw_8h-source.html#l00030">30</a> of file <a class="el" href="qwt__scale__draw_8h-source.html">qwt_scale_draw.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_draw.html#cd7ceeeac592ef08530788580b461c66">Alignment</a> { <br> <b>BottomScale</b>, <br> <b>TopScale</b>, <br> <b>LeftScale</b>, <br> <b>RightScale</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_draw.html#dbd01ba8d7f19fb3122f917b1c74145b">QwtScaleDraw</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_draw.html#eefb37bb1da64b582d310a046c0f9c83">QwtScaleDraw</a> (const <a class="el" href="class_qwt_scale_draw.html">QwtScaleDraw</a> &)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#9c907c8fa27ec7312e78145e3050c599">~QwtScaleDraw</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_qwt_scale_draw.html">QwtScaleDraw</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#c0616d79ee21083f7402ba0586ff2635">operator=</a> (const <a class="el" href="class_qwt_scale_draw.html">QwtScaleDraw</a> &other)</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_draw.html#b6c5d65a109b63b2dd62984d38a4df0e">getBorderDistHint</a> (const QFont &, int &start, int &end) 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_draw.html#1e60d584f563933afba119d443ba5b32">minLabelDist</a> (const QFont &) 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_draw.html#f1c4deec62bb016517b3010507e462b1">minLength</a> (const QPen &, const QFont &) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#77686e978dccc2ae316501cc5ff290c6">extent</a> (const QPen &, const QFont &) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="d301aed0c797c10f0104976d1a62ff69"></a><!-- doxytag: member="QwtScaleDraw::move" ref="d301aed0c797c10f0104976d1a62ff69" args="(int x, int y)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#d301aed0c797c10f0104976d1a62ff69">move</a> (int x, int y)</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_draw.html#751cfd2bb2a29b55b7ef540e9c2f97aa">move</a> (const QPoint &)</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_draw.html#2094e09579671d0a8e4b14a636eba6ef">setLength</a> (int length)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_qwt_scale_draw.html#cd7ceeeac592ef08530788580b461c66">Alignment</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#d0425d29e919f60021322b178661b6e5">alignment</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_draw.html#7a4de0055dc1358e55c3357366a54091">setAlignment</a> (<a class="el" href="class_qwt_scale_draw.html#cd7ceeeac592ef08530788580b461c66">Alignment</a>)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">Qt::Orientation </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#06bf10d73aa03c16394a85fa70a7a3b1">orientation</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QPoint </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#6fd3a7c12e05e6c22cc9580e17f954e3">pos</a> () 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_draw.html#a982a552071ddfffed21e9bac4e796ef">length</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_draw.html#3df0a1fe4a498ef028a5348e54bfaa7f">setLabelAlignment</a> (Qt::Alignment)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">Qt::Alignment </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#d024fd550ecc3816ee8886417794aae2">labelAlignment</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_draw.html#bf5881339fddde65a00c1dd391023320">setLabelRotation</a> (double rotation)</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_draw.html#614f18b99f53e6a6282c39f95388face">labelRotation</a> () 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_draw.html#b5fcdcbb4c3fe419e48efd3068ecd3e4">maxLabelHeight</a> (const QFont &) 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_draw.html#b0c4ee29e81cee70e8a491e5ff80b8ff">maxLabelWidth</a> (const QFont &) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QPoint </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#7ee2b666ec683fedef896ba940af0983">labelPosition</a> (double val) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QRect </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#4c04330f45af01bb950ba0490681715f">labelRect</a> (const QFont &, double val) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QSize </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#e3e729bbdd95862a27b550f30561a11a">labelSize</a> (const QFont &, double val) const </td></tr><tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QMatrix </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#a7b143ec69b0fe088b7532551bc23a23">labelMatrix</a> (const QPoint &, const QSize &) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#bd16c4344a271fd2340917ea7133c067">drawTick</a> (QPainter *p, double val, int len) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#3319e5adc50aaa49b31cd634760c6488">drawBackbone</a> (QPainter *p) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_scale_draw.html#999f2d8d10399d1ee691bbd445d5ecb3">drawLabel</a> (QPainter *p, double val) const </td></tr></table><hr><h2>Member Enumeration Documentation</h2><a class="anchor" name="cd7ceeeac592ef08530788580b461c66"></a><!-- doxytag: member="QwtScaleDraw::Alignment" ref="cd7ceeeac592ef08530788580b461c66" 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">enum <a class="el" href="class_qwt_scale_draw.html#cd7ceeeac592ef08530788580b461c66">QwtScaleDraw::Alignment</a> </td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Alignment of the scale draw <dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_scale_draw.html#7a4de0055dc1358e55c3357366a54091">setAlignment()</a>, <a class="el" href="class_qwt_scale_draw.html#d0425d29e919f60021322b178661b6e5">alignment()</a> </dd></dl><p>Definition at line <a class="el" href="qwt__scale__draw_8h-source.html#l00037">37</a> of file <a class="el" href="qwt__scale__draw_8h-source.html">qwt_scale_draw.h</a>. </td> </tr></table><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="dbd01ba8d7f19fb3122f917b1c74145b"></a><!-- doxytag: member="QwtScaleDraw::QwtScaleDraw" ref="dbd01ba8d7f19fb3122f917b1c74145b" 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">QwtScaleDraw::QwtScaleDraw </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></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Constructor. <p>The range of the scale is initialized to [0, 100], The position is at (0, 0) with a length of 100. The orientation is QwtAbstractScaleDraw::Bottom. <p>Definition at line <a class="el" href="qwt__scale__draw_8cpp-source.html#l00060">60</a> of file <a class="el" href="qwt__scale__draw_8cpp-source.html">qwt_scale_draw.cpp</a>.<p>References <a class="el" href="qwt__scale__draw_8cpp-source.html#l00589">setLength()</a>. </td> </tr></table><a class="anchor" name="eefb37bb1da64b582d310a046c0f9c83"></a><!-- doxytag: member="QwtScaleDraw::QwtScaleDraw" ref="eefb37bb1da64b582d310a046c0f9c83" args="(const QwtScaleDraw &)" --><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">QwtScaleDraw::QwtScaleDraw </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_scale_draw.html">QwtScaleDraw</a> & </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Copy constructor. <p><p>Definition at line <a class="el" href="qwt__scale__draw_8cpp-source.html#l00067">67</a> of file <a class="el" href="qwt__scale__draw_8cpp-source.html">qwt_scale_draw.cpp</a>.<p>References <a class="el" href="qwt__scale__draw_8h-source.html#l00098">d_data</a>. </td> </tr></table><a class="anchor" name="9c907c8fa27ec7312e78145e3050c599"></a><!-- doxytag: member="QwtScaleDraw::~QwtScaleDraw" ref="9c907c8fa27ec7312e78145e3050c599" 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">QwtScaleDraw::~QwtScaleDraw </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> [virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Destructor. <p><p>Definition at line <a class="el" href="qwt__scale__draw_8cpp-source.html#l00074">74</a> of file <a class="el" href="qwt__scale__draw_8cpp-source.html">qwt_scale_draw.cpp</a>. </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="d0425d29e919f60021322b178661b6e5"></a><!-- doxytag: member="QwtScaleDraw::alignment" ref="d0425d29e919f60021322b178661b6e5" args="() const " --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow">⌨️ 快捷键说明
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