📄 qwt__interval__data_8cpp-source.html
字号:
<!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: qwt_interval_data.cpp Source File</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><a href="classes.html"><span>Classes</span></a></li> <li id="current"><a href="files.html"><span>Files</span></a></li> <li><a href="pages.html"><span>Related Pages</span></a></li> </ul></div><h1>qwt_interval_data.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span><a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span><a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span><a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span><a name="l00005"></a>00005 <span class="comment"> * </span><a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span><a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span><a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span><a name="l00009"></a>00009 <a name="l00010"></a>00010 <span class="preprocessor">#include "qwt_math.h"</span><a name="l00011"></a>00011 <span class="preprocessor">#include "qwt_interval_data.h"</span><a name="l00012"></a>00012 <a name="l00013"></a><a class="code" href="class_qwt_interval_data.html#f9ecf7ff365f3a903a16ee9977f105ff">00013</a> <a class="code" href="class_qwt_interval_data.html#f9ecf7ff365f3a903a16ee9977f105ff">QwtIntervalData::QwtIntervalData</a>()<a name="l00014"></a>00014 {<a name="l00015"></a>00015 }<a name="l00016"></a>00016 <a name="l00017"></a><a class="code" href="class_qwt_interval_data.html#b3faf0d3335eebe14f8285a791ea0db3">00017</a> <a class="code" href="class_qwt_interval_data.html#f9ecf7ff365f3a903a16ee9977f105ff">QwtIntervalData::QwtIntervalData</a>(<a name="l00018"></a>00018 <span class="keyword">const</span> QwtArray<QwtDoubleInterval> &intervals, <a name="l00019"></a>00019 <span class="keyword">const</span> QwtArray<double> &values):<a name="l00020"></a>00020 d_intervals(intervals),<a name="l00021"></a>00021 d_values(values)<a name="l00022"></a>00022 {<a name="l00023"></a>00023 }<a name="l00024"></a>00024 <a name="l00025"></a><a class="code" href="class_qwt_interval_data.html#5ccd2d3de2c5499d56ee3569c3b79985">00025</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_interval_data.html#5ccd2d3de2c5499d56ee3569c3b79985">QwtIntervalData::setData</a>(<a name="l00026"></a>00026 <span class="keyword">const</span> QwtArray<QwtDoubleInterval> &intervals,<a name="l00027"></a>00027 <span class="keyword">const</span> QwtArray<double> &values)<a name="l00028"></a>00028 {<a name="l00029"></a>00029 d_intervals = intervals;<a name="l00030"></a>00030 d_values = values;<a name="l00031"></a>00031 }<a name="l00032"></a>00032 <a name="l00033"></a><a class="code" href="class_qwt_interval_data.html#42062fb0c6cffc6e7de65e3750ede93b">00033</a> QwtDoubleRect <a class="code" href="class_qwt_interval_data.html#42062fb0c6cffc6e7de65e3750ede93b">QwtIntervalData::boundingRect</a>()<span class="keyword"> const</span><a name="l00034"></a>00034 <span class="keyword"></span>{<a name="l00035"></a>00035 <span class="keywordtype">double</span> minX, maxX, minY, maxY;<a name="l00036"></a>00036 minX = maxX = minY = maxY = 0.0;<a name="l00037"></a>00037 <a name="l00038"></a>00038 <span class="keywordtype">bool</span> isValid = <span class="keyword">false</span>;<a name="l00039"></a>00039 <a name="l00040"></a>00040 <span class="keyword">const</span> size_t sz = <a class="code" href="class_qwt_interval_data.html#fa4290fecddc3af8109e0648b7c4b4cd">size</a>();<a name="l00041"></a>00041 <span class="keywordflow">for</span> ( size_t i = 0; i < sz; i++ )<a name="l00042"></a>00042 {<a name="l00043"></a>00043 <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> intv = <a class="code" href="class_qwt_interval_data.html#c3fbe864a97f6afec336f8e283efcb8a">interval</a>(i);<a name="l00044"></a>00044 <span class="keywordflow">if</span> ( !intv.isValid() )<a name="l00045"></a>00045 <span class="keywordflow">continue</span>;<a name="l00046"></a>00046 <a name="l00047"></a>00047 <span class="keyword">const</span> <span class="keywordtype">double</span> v = <a class="code" href="class_qwt_interval_data.html#3521a6e27eecf93c184ecafd8d43b3d2">value</a>(i);<a name="l00048"></a>00048 <a name="l00049"></a>00049 <span class="keywordflow">if</span> ( !isValid )<a name="l00050"></a>00050 {<a name="l00051"></a>00051 minX = intv.minValue();<a name="l00052"></a>00052 maxX = intv.maxValue();<a name="l00053"></a>00053 minY = maxY = v;<a name="l00054"></a>00054 <a name="l00055"></a>00055 isValid = <span class="keyword">true</span>;<a name="l00056"></a>00056 }<a name="l00057"></a>00057 <span class="keywordflow">else</span><a name="l00058"></a>00058 {<a name="l00059"></a>00059 <span class="keywordflow">if</span> ( intv.minValue() < minX )<a name="l00060"></a>00060 minX = intv.minValue();<a name="l00061"></a>00061 <span class="keywordflow">if</span> ( intv.maxValue() > maxX )<a name="l00062"></a>00062 maxX = intv.maxValue();<a name="l00063"></a>00063 <a name="l00064"></a>00064 <span class="keywordflow">if</span> ( v < minY )<a name="l00065"></a>00065 minY = v;<a name="l00066"></a>00066 <span class="keywordflow">if</span> ( v > maxY )<a name="l00067"></a>00067 maxY = v;<a name="l00068"></a>00068 }<a name="l00069"></a>00069 }<a name="l00070"></a>00070 <span class="keywordflow">if</span> ( !isValid )<a name="l00071"></a>00071 <span class="keywordflow">return</span> QwtDoubleRect(1.0, 1.0, -2.0, -2.0); <span class="comment">// invalid</span><a name="l00072"></a>00072 <a name="l00073"></a>00073 <span class="keywordflow">return</span> QwtDoubleRect(minX, minY, maxX - minX, maxY - minY);<a name="l00074"></a>00074 }</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:36 2007 for Qwt User's Guide by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.6 </small></address></body></html>⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -