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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>Qwt User's Guide: QwtCPointerData Class Reference</title>
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<div class="qindex"><a class="qindex" href="index.html">Main Page</a> | <a class="qindex" href="hierarchy.html">Class Hierarchy</a> | <a class="qindex" href="classes.html">Alphabetical List</a> | <a class="qindex" href="annotated.html">Class List</a> | <a class="qindex" href="files.html">File List</a> | <a class="qindex" href="functions.html">Class Members</a> | <a class="qindex" href="globals.html">File Members</a> | <a class="qindex" href="pages.html">Related Pages</a></div>
<h1>QwtCPointerData Class Reference</h1>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>
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<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>
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<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>
Definition at line <a class="el" href="qwt__data_8h-source.html#l00125">125</a> of file <a class="el" href="qwt__data_8h-source.html">qwt_data.h</a>.<table border=0 cellpadding=0 cellspacing=0>
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<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#a0">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#a1">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#a2">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#a3">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#a4">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#a5">y</a> (size_t i) const</td></tr>
<tr><td class="memItemLeft" nowrap align=right valign=top>virtual <a class="el" href="class_qwt_double_rect.html">QwtDoubleRect</a> </td><td class="memItemRight" valign=bottom><a class="el" href="class_qwt_c_pointer_data.html#a6">boundingRect</a> () const</td></tr>
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="a0" doxytag="QwtCPointerData::QwtCPointerData" ></a><p>
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<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>
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<td class="md" nowrap align="right"></td>
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<td class="md" nowrap>const double * </td>
<td class="mdname" nowrap> <em>y</em>, </td>
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<td class="md" nowrap align="right"></td>
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<td class="md" nowrap>size_t </td>
<td class="mdname" nowrap> <em>size</em></td>
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<td class="md">) </td>
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Constructor<p>
<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_curve.html#a4">QwtCurve::setRawData</a> and <a class="el" href="class_qwt_plot.html#a51">QwtPlot::setCurveRawData</a>. </dd></dl>
Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00187">187</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>.
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Referenced by <a class="el" href="qwt__data_8cpp-source.html#l00220">copy()</a>. </td>
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="a6" doxytag="QwtCPointerData::boundingRect" ></a><p>
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<td class="md" nowrap valign="top"> <a class="el" href="class_qwt_double_rect.html">QwtDoubleRect</a> QwtCPointerData::boundingRect </td>
<td class="md" valign="top">( </td>
<td class="mdname1" valign="top" nowrap> </td>
<td class="md" valign="top"> ) </td>
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Returns the bounding rectangle of the data. If there is no bounding rect, like for empty data the rectangle is invalid: <a class="el" href="class_qwt_double_rect.html#a5">QwtDoubleRect::isValid()</a> == FALSE
<p>
Reimplemented from <a class="el" href="class_qwt_data.html#a6">QwtData</a>.
<p>
Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00230">230</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#l00205">size()</a>. </td>
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<a class="anchor" name="a2" doxytag="QwtCPointerData::copy" ></a><p>
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<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>
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<p>
Return a pointer to a copy (virtual copy constructor)
<p>
Implements <a class="el" href="class_qwt_data.html#a2">QwtData</a>.
<p>
Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00220">220</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#l00187">QwtCPointerData()</a>. </td>
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<a class="anchor" name="a1" doxytag="QwtCPointerData::operator=" ></a><p>
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<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>
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<p>
Assignment.
<p>
Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00194">194</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>.
<p>
References <a class="el" href="qwt__data_8h-source.html#l00149">d_size</a>, <a class="el" href="qwt__data_8h-source.html#l00147">d_x</a>, and <a class="el" href="qwt__data_8h-source.html#l00148">d_y</a>. </td>
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<a class="anchor" name="a3" doxytag="QwtCPointerData::size" ></a><p>
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<td class="md" nowrap valign="top"> size_t QwtCPointerData::size </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>
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Return the size of the data set
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Implements <a class="el" href="class_qwt_data.html#a3">QwtData</a>.
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Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00205">205</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>.
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Referenced by <a class="el" href="qwt__data_8cpp-source.html#l00230">boundingRect()</a>. </td>
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<td class="md" nowrap valign="top"> double QwtCPointerData::x </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">size_t </td>
<td class="mdname1" valign="top" nowrap> <em>i</em> </td>
<td class="md" valign="top"> ) </td>
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Return the x value of data point i <dl compact><dt><b>Parameters:</b></dt><dd>
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<dl compact><dt><b>Returns:</b></dt><dd>x X value of data point i </dd></dl>
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Implements <a class="el" href="class_qwt_data.html#a4">QwtData</a>.
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Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00210">210</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>. </td>
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<td class="md" nowrap valign="top"> double QwtCPointerData::y </td>
<td class="md" valign="top">( </td>
<td class="md" nowrap valign="top">size_t </td>
<td class="mdname1" valign="top" nowrap> <em>i</em> </td>
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Return the y value of data point i <dl compact><dt><b>Parameters:</b></dt><dd>
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<dl compact><dt><b>Returns:</b></dt><dd>y Y value of data point i </dd></dl>
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Implements <a class="el" href="class_qwt_data.html#a5">QwtData</a>.
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Definition at line <a class="el" href="qwt__data_8cpp-source.html#l00215">215</a> of file <a class="el" href="qwt__data_8cpp-source.html">qwt_data.cpp</a>. </td>
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