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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: QwtRoundScaleDraw 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>QwtRoundScaleDraw Class Reference</h1><!-- doxytag: class="QwtRoundScaleDraw" --><!-- doxytag: inherits="QwtAbstractScaleDraw" -->Inheritance diagram for QwtRoundScaleDraw:<p><center><img src="class_qwt_round_scale_draw__inherit__graph.png" border="0" usemap="#_qwt_round_scale_draw__inherit__map" alt="Inheritance graph"></center><map name="_qwt_round_scale_draw__inherit__map"><area href="class_qwt_dial_scale_draw.html" shape="rect" coords="20,157,151,181" alt=""><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 QwtRoundScaleDraw:<p><center><img src="class_qwt_round_scale_draw__coll__graph.png" border="0" usemap="#_qwt_round_scale_draw__coll__map" alt="Collaboration graph"></center><map name="_qwt_round_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_round_scale_draw-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>A class for drawing round scales. <p><a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> can be used to draw round scales. The circle segment can be adjusted by <a class="el" href="class_qwt_round_scale_draw.html#5d85678fdb9fbb4d622425aab9ecc681">QwtRoundScaleDraw::setAngleRange()</a>. The geometry of the scale can be specified with <a class="el" href="class_qwt_round_scale_draw.html#fe2226d225c3d7f50a85a80c86f5eb6e">QwtRoundScaleDraw::moveCenter()</a> and <a class="el" href="class_qwt_round_scale_draw.html#069d658989db2ad96f26b79a298f7d10">QwtRoundScaleDraw::setRadius()</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__round__scale__draw_8h-source.html#l00032">32</a> of file <a class="el" href="qwt__round__scale__draw_8h-source.html">qwt_round_scale_draw.h</a>.<table border="0" cellpadding="0" cellspacing="0"><tr><td></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_round_scale_draw.html#9c44d19488567825d826528b701587c8">QwtRoundScaleDraw</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_round_scale_draw.html#d6237d352a7004166dacfe644bfc4308">QwtRoundScaleDraw</a> (const <a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</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_round_scale_draw.html#81583432e629cd8a14524b05fabb4731">~QwtRoundScaleDraw</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_round_scale_draw.html#dc6fc2de0c09ea6b70258a129fecac3a">operator=</a> (const <a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</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_round_scale_draw.html#069d658989db2ad96f26b79a298f7d10">setRadius</a> (int radius)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_round_scale_draw.html#2eb03d12749a44f7ca8a8ff92514dd56">radius</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="fe2226d225c3d7f50a85a80c86f5eb6e"></a><!-- doxytag: member="QwtRoundScaleDraw::moveCenter" ref="fe2226d225c3d7f50a85a80c86f5eb6e" args="(int x, int y)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_round_scale_draw.html#fe2226d225c3d7f50a85a80c86f5eb6e">moveCenter</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_round_scale_draw.html#536cdecd6046e4a8434e117c9cd5c180">moveCenter</a> (const QPoint &)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">QPoint </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_round_scale_draw.html#79346d7551aa877667a104863f9a198e">center</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_round_scale_draw.html#5d85678fdb9fbb4d622425aab9ecc681">setAngleRange</a> (double angle1, double angle2)</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_round_scale_draw.html#50f5d69dceab6ccf5e00bd2a7953d897">extent</a> (const QPen &, const QFont &) const </td></tr><tr><td colspan="2"><br><h2>Protected Member Functions</h2></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_round_scale_draw.html#a4f77a6cbb019ca42f857bf2019acff2">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_round_scale_draw.html#845dc48b006ee168415112f39e80da09">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_round_scale_draw.html#a43bf3624c464727bb4f0cab28c3f6fe">drawLabel</a> (QPainter *p, double val) const </td></tr></table><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="9c44d19488567825d826528b701587c8"></a><!-- doxytag: member="QwtRoundScaleDraw::QwtRoundScaleDraw" ref="9c44d19488567825d826528b701587c8" 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">QwtRoundScaleDraw::QwtRoundScaleDraw </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 center is set to (50, 50) with a radius of 50. The angle range is set to [-135, 135]. <p>Definition at line <a class="el" href="qwt__round__scale__draw_8cpp-source.html#l00046">46</a> of file <a class="el" href="qwt__round__scale__draw_8cpp-source.html">qwt_round_scale_draw.cpp</a>.<p>References <a class="el" href="qwt__abstract__scale__draw_8cpp-source.html#l00131">QwtAbstractScaleDraw::scaleMap()</a>, <a class="el" href="qwt__scale__map_8cpp-source.html#l00180">QwtScaleMap::setPaintInterval()</a>, and <a class="el" href="qwt__round__scale__draw_8cpp-source.html#l00084">setRadius()</a>. </td> </tr></table><a class="anchor" name="d6237d352a7004166dacfe644bfc4308"></a><!-- doxytag: member="QwtRoundScaleDraw::QwtRoundScaleDraw" ref="d6237d352a7004166dacfe644bfc4308" args="(const QwtRoundScaleDraw &)" --><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">QwtRoundScaleDraw::QwtRoundScaleDraw </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_round_scale_draw.html">QwtRoundScaleDraw</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__round__scale__draw_8cpp-source.html#l00055">55</a> of file <a class="el" href="qwt__round__scale__draw_8cpp-source.html">qwt_round_scale_draw.cpp</a>.<p>References <a class="el" href="qwt__round__scale__draw_8h-source.html#l00059">d_data</a>. </td> </tr></table><a class="anchor" name="81583432e629cd8a14524b05fabb4731"></a><!-- doxytag: member="QwtRoundScaleDraw::~QwtRoundScaleDraw" ref="81583432e629cd8a14524b05fabb4731" 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">QwtRoundScaleDraw::~QwtRoundScaleDraw </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__round__scale__draw_8cpp-source.html#l00063">63</a> of file <a class="el" href="qwt__round__scale__draw_8cpp-source.html">qwt_round_scale_draw.cpp</a>. </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="79346d7551aa877667a104863f9a198e"></a><!-- doxytag: member="QwtRoundScaleDraw::center" ref="79346d7551aa877667a104863f9a198e" 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">QPoint QwtRoundScaleDraw::center </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</td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Get the center of the scale. <p><p>Definition at line <a class="el" href="qwt__round__scale__draw_8cpp-source.html#l00113">113</a> of file <a class="el" href="qwt__round__scale__draw_8cpp-source.html">qwt_round_scale_draw.cpp</a>. </td> </tr></table><a class="anchor" name="845dc48b006ee168415112f39e80da09"></a><!-- doxytag: member="QwtRoundScaleDraw::drawBackbone" ref="845dc48b006ee168415112f39e80da09" args="(QPainter *p) const " --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr>⌨️ 快捷键说明
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