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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: QwtCPointerData 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>QwtCPointerData Class Reference</h1><!-- doxytag: class="QwtCPointerData" --><!-- doxytag: inherits="QwtData" -->Inheritance diagram for QwtCPointerData:<p><center><img src="class_qwt_c_pointer_data__inherit__graph.png" border="0" usemap="#_qwt_c_pointer_data__inherit__map" alt="Inheritance graph"></center><map name="_qwt_c_pointer_data__inherit__map"><area href="class_qwt_data.html" shape="rect" coords="32,8,107,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center>Collaboration diagram for QwtCPointerData:<p><center><img src="class_qwt_c_pointer_data__coll__graph.png" border="0" usemap="#_qwt_c_pointer_data__coll__map" alt="Collaboration graph"></center><map name="_qwt_c_pointer_data__coll__map"><area href="class_qwt_data.html" shape="rect" coords="32,8,107,32" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="class_qwt_c_pointer_data-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>Data class containing two pointers to memory blocks of doubles. <p><p>Definition at line <a class="el" href="qwt__data_8h-source.html#l00144">144</a> of file <a class="el" href="qwt__data_8h-source.html">qwt_data.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_c_pointer_data.html#795b86d69226d1aabf9356848da6c083">QwtCPointerData</a> (const double *x, const double *y, size_t size)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_qwt_c_pointer_data.html">QwtCPointerData</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#96f6005a8a62716ea57a856bf42245ae">operator=</a> (const <a class="el" href="class_qwt_c_pointer_data.html">QwtCPointerData</a> &)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual <a class="el" href="class_qwt_data.html">QwtData</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#02a09662881df362369bf078842d1380">copy</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#780b9ae434856509cef9bbe954f03a3e">size</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#178b1e84039edee9eadd5a849559c882">x</a> (size_t i) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual double </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#792eaf93b84f8ec97c4e742ec6ff08de">y</a> (size_t i) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">const double * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#6409b0bcf77674d1970185c6c3245e26">xData</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">const double * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#7c538ed7b3e4cc5db6d4d97c09ed9d73">yData</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual QwtDoubleRect </td><td class="memItemRight" valign="bottom"><a class="el" href="class_qwt_c_pointer_data.html#fa08cb9715db81f68bcf87f8a37a71ea">boundingRect</a> () const </td></tr></table><hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="795b86d69226d1aabf9356848da6c083"></a><!-- doxytag: member="QwtCPointerData::QwtCPointerData" ref="795b86d69226d1aabf9356848da6c083" args="(const double *x, const double *y, size_t size)" --><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">QwtCPointerData::QwtCPointerData </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const double * </td> <td class="mdname" nowrap> <em>x</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>const double * </td> <td class="mdname" nowrap> <em>y</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>size_t </td> <td class="mdname" nowrap> <em>size</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Constructor<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>x</em> </td><td>Array of x values </td></tr> <tr><td valign="top"></td><td valign="top"><em>y</em> </td><td>Array of y values </td></tr> <tr><td valign="top"></td><td valign="top"><em>size</em> </td><td>Size of the x and y arrays</td></tr> </table></dl><dl compact><dt><b>Warning:</b></dt><dd>The programmer must assure that the memory blocks referenced by the pointers remain valid during the lifetime of the QwtPlotCPointer object.</dd></dl><dl compact><dt><b>See also:</b></dt><dd><a class="el" href="class_qwt_plot_curve.html#1dc2caaddb1733703b5fcfbe19f29fe8">QwtPlotCurve::setData()</a>, <a class="el" href="class_qwt_plot_curve.html#35533bd778842cf45b283a2baf5ff4a4">QwtPlotCurve::setRawData()</a> </dd></dl><p>Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00281">281</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>.<p>Referenced by <a class="el" href="qwt__data_8cpp-source.html#l00344">copy()</a>. </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="fa08cb9715db81f68bcf87f8a37a71ea"></a><!-- doxytag: member="QwtCPointerData::boundingRect" ref="fa08cb9715db81f68bcf87f8a37a71ea" 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">QwtDoubleRect QwtCPointerData::boundingRect </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> [virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Returns the bounding rectangle of the data. If there is no bounding rect, like for empty data the rectangle is invalid: QwtDoubleRect::isValid() == false <p>Reimplemented from <a class="el" href="class_qwt_data.html#d72b6842ce6af1f61f9643786d63a91f">QwtData</a>.<p>Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00354">354</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>.<p>References <a class="el" href="qwt__data_8cpp-source.html#l00302">size()</a>. </td> </tr></table><a class="anchor" name="02a09662881df362369bf078842d1380"></a><!-- doxytag: member="QwtCPointerData::copy" ref="02a09662881df362369bf078842d1380" 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"><a class="el" href="class_qwt_data.html">QwtData</a> * QwtCPointerData::copy </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> [virtual]</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>Pointer to a copy (virtual copy constructor) </dd></dl><p>Implements <a class="el" href="class_qwt_data.html#8531a1add1f0b2d12809f90f97fd80c9">QwtData</a>.<p>Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00344">344</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>.<p>References <a class="el" href="qwt__data_8cpp-source.html#l00281">QwtCPointerData()</a>. </td> </tr></table><a class="anchor" name="96f6005a8a62716ea57a856bf42245ae"></a><!-- doxytag: member="QwtCPointerData::operator=" ref="96f6005a8a62716ea57a856bf42245ae" args="(const QwtCPointerData &)" --><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"><a class="el" href="class_qwt_c_pointer_data.html">QwtCPointerData</a> & QwtCPointerData::operator= </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="class_qwt_c_pointer_data.html">QwtCPointerData</a> & </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td>⌨️ 快捷键说明
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