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<h1>qwt_data.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span>
21
<a name="l00002"></a>00002 <span class="comment"> * Qwt Widget Library</span>
22
<a name="l00003"></a>00003 <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span>
23
<a name="l00004"></a>00004 <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span>
24
<a name="l00005"></a>00005 <span class="comment"> * </span>
25
<a name="l00006"></a>00006 <span class="comment"> * This library is free software; you can redistribute it and/or</span>
26
<a name="l00007"></a>00007 <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span>
27
<a name="l00008"></a>00008 <span class="comment"> *****************************************************************************/</span>
28
<a name="l00009"></a>00009
29
<a name="l00010"></a>00010 <span class="preprocessor">#include "qwt_math.h"</span>
30
<a name="l00011"></a>00011 <span class="preprocessor">#include "qwt_data.h"</span>
31
<a name="l00012"></a>00012
32
<a name="l00014"></a><a class="code" href="class_qwt_data.html#de45c6c6d06b5fb4d1332b49168a008b">00014</a> <a class="code" href="class_qwt_data.html#de45c6c6d06b5fb4d1332b49168a008b">QwtData::QwtData</a>()
33
<a name="l00015"></a>00015 {
34
<a name="l00016"></a>00016 }
35
<a name="l00017"></a>00017
36
<a name="l00019"></a><a class="code" href="class_qwt_data.html#6c813cff34e61a74f3a146177424f473">00019</a> <a class="code" href="class_qwt_data.html#6c813cff34e61a74f3a146177424f473">QwtData::~QwtData</a>()
37
<a name="l00020"></a>00020 {
38
<a name="l00021"></a>00021 }
39
<a name="l00022"></a>00022
40
<a name="l00034"></a><a class="code" href="class_qwt_data.html#67ac4f55f4f40ced54b0fe970d410cf7">00034</a> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> <a class="code" href="class_qwt_data.html#67ac4f55f4f40ced54b0fe970d410cf7">QwtData::boundingRect</a>()<span class="keyword"> const</span>
41
<a name="l00035"></a>00035 <span class="keyword"></span>{
42
<a name="l00036"></a>00036 <span class="keyword">const</span> size_t sz = <a class="code" href="class_qwt_data.html#3083c0e562f2cb35379fa264a9ca8014">size</a>();
43
<a name="l00037"></a>00037
44
<a name="l00038"></a>00038 <span class="keywordflow">if</span> ( sz <= 0 )
45
<a name="l00039"></a>00039 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>(1.0, 1.0, -2.0, -2.0); <span class="comment">// invalid</span>
46
<a name="l00040"></a>00040
47
<a name="l00041"></a>00041 <span class="keywordtype">double</span> minX, maxX, minY, maxY;
48
<a name="l00042"></a>00042 minX = maxX = <a class="code" href="class_qwt_data.html#e226ee3042742e8ddbb36365893c9ebd">x</a>(0);
49
<a name="l00043"></a>00043 minY = maxY = <a class="code" href="class_qwt_data.html#76295574f256ed4378217f5c88d68b50">y</a>(0);
50
<a name="l00044"></a>00044
51
<a name="l00045"></a>00045 <span class="keywordflow">for</span> ( size_t i = 1; i < sz; i++ )
52
<a name="l00046"></a>00046 {
53
<a name="l00047"></a>00047 <span class="keyword">const</span> <span class="keywordtype">double</span> xv = <a class="code" href="class_qwt_data.html#e226ee3042742e8ddbb36365893c9ebd">x</a>(i);
54
<a name="l00048"></a>00048 <span class="keywordflow">if</span> ( xv < minX )
55
<a name="l00049"></a>00049 minX = xv;
56
<a name="l00050"></a>00050 <span class="keywordflow">if</span> ( xv > maxX )
57
<a name="l00051"></a>00051 maxX = xv;
58
<a name="l00052"></a>00052
59
<a name="l00053"></a>00053 <span class="keyword">const</span> <span class="keywordtype">double</span> yv = <a class="code" href="class_qwt_data.html#76295574f256ed4378217f5c88d68b50">y</a>(i);
60
<a name="l00054"></a>00054 <span class="keywordflow">if</span> ( yv < minY )
61
<a name="l00055"></a>00055 minY = yv;
62
<a name="l00056"></a>00056 <span class="keywordflow">if</span> ( yv > maxY )
63
<a name="l00057"></a>00057 maxY = yv;
64
<a name="l00058"></a>00058 }
65
<a name="l00059"></a>00059 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>(minX, minY, maxX - minX, maxY - minY);
66
<a name="l00060"></a>00060 }
67
<a name="l00061"></a>00061
68
<a name="l00068"></a>00068 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
69
<a name="l00069"></a><a class="code" href="class_qwt_polygon_f_data.html#83f9b6797ac8c3ca2f5847bdc957d419">00069</a> <span class="preprocessor"></span><a class="code" href="class_qwt_polygon_f_data.html#83f9b6797ac8c3ca2f5847bdc957d419">QwtPolygonFData::QwtPolygonFData</a>(<span class="keyword">const</span> QPolygonF &polygon):
70
<a name="l00070"></a>00070 #else
71
<a name="l00071"></a>00071 <a class="code" href="class_qwt_polygon_f_data.html">QwtPolygonFData</a>::<a class="code" href="class_qwt_polygon_f_data.html">QwtPolygonFData</a>(const QwtArray<<a class="code" href="qwt__double__rect_8h.html#5fdf5abc59b6e6cee5c11d355906927a">QwtDoublePoint</a>> &polygon):
72
<a name="l00072"></a>00072 #endif
73
<a name="l00073"></a>00073 <a class="code" href="class_qwt_spline.html#784545391f14c014684f391c6d92fd27">d_data</a>(polygon)
74
<a name="l00074"></a>00074 {
75
<a name="l00075"></a>00075 }
76
<a name="l00076"></a>00076
77
<a name="l00078"></a><a class="code" href="class_qwt_polygon_f_data.html#c51e4686c8cdb2cbdf09750acc15ecca">00078</a> <a class="code" href="class_qwt_polygon_f_data.html">QwtPolygonFData</a>& <a class="code" href="class_qwt_polygon_f_data.html#c51e4686c8cdb2cbdf09750acc15ecca">QwtPolygonFData::operator=</a>(
78
<a name="l00079"></a>00079 <span class="keyword">const</span> <a class="code" href="class_qwt_polygon_f_data.html">QwtPolygonFData</a> &data)
79
<a name="l00080"></a>00080 {
80
<a name="l00081"></a>00081 <span class="keywordflow">if</span> (<span class="keyword">this</span> != &<a class="code" href="class_qwt_polygon_f_data.html#f4df6087de5e5dbea7215ce1a48ab917">data</a>)
81
<a name="l00082"></a>00082 {
82
<a name="l00083"></a>00083 <a class="code" href="class_qwt_spline.html#784545391f14c014684f391c6d92fd27">d_data</a> = <a class="code" href="class_qwt_polygon_f_data.html#f4df6087de5e5dbea7215ce1a48ab917">data</a>.d_data;
83
<a name="l00084"></a>00084 }
84
<a name="l00085"></a>00085 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
85
<a name="l00086"></a>00086 }
86
<a name="l00087"></a>00087
87
<a name="l00089"></a><a class="code" href="class_qwt_polygon_f_data.html#6d9445d563921450a75d4f5fbbce35de">00089</a> size_t <a class="code" href="class_qwt_polygon_f_data.html#6d9445d563921450a75d4f5fbbce35de">QwtPolygonFData::size</a>()<span class="keyword"> const </span>
88
<a name="l00090"></a>00090 <span class="keyword"></span>{
89
<a name="l00091"></a>00091 <span class="keywordflow">return</span> <a class="code" href="class_qwt_spline.html#784545391f14c014684f391c6d92fd27">d_data</a>.size();
90
<a name="l00092"></a>00092 }
91
<a name="l00093"></a>00093
92
<a name="l00100"></a><a class="code" href="class_qwt_polygon_f_data.html#7b1d8e8daa6a3927a0a8c65d3191bbb5">00100</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_polygon_f_data.html#7b1d8e8daa6a3927a0a8c65d3191bbb5">QwtPolygonFData::x</a>(size_t i)<span class="keyword"> const </span>
93
<a name="l00101"></a>00101 <span class="keyword"></span>{
94
<a name="l00102"></a>00102 <span class="keywordflow">return</span> <a class="code" href="class_qwt_spline.html#784545391f14c014684f391c6d92fd27">d_data</a>[int(i)].x();
95
<a name="l00103"></a>00103 }
96
<a name="l00104"></a>00104
97
<a name="l00111"></a><a class="code" href="class_qwt_polygon_f_data.html#defbb0b25c5e3f6f965808ee0ae6c4e1">00111</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_polygon_f_data.html#defbb0b25c5e3f6f965808ee0ae6c4e1">QwtPolygonFData::y</a>(size_t i)<span class="keyword"> const </span>
98
<a name="l00112"></a>00112 <span class="keyword"></span>{
99
<a name="l00113"></a>00113 <span class="keywordflow">return</span> <a class="code" href="class_qwt_spline.html#784545391f14c014684f391c6d92fd27">d_data</a>[int(i)].y();
100
<a name="l00114"></a>00114 }
101
<a name="l00115"></a>00115
102
<a name="l00116"></a>00116 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
103
<a name="l00117"></a><a class="code" href="class_qwt_polygon_f_data.html#f4df6087de5e5dbea7215ce1a48ab917">00117</a> <span class="preprocessor"></span><span class="keyword">const</span> QPolygonF &<a class="code" href="class_qwt_polygon_f_data.html#f4df6087de5e5dbea7215ce1a48ab917">QwtPolygonFData::data</a>() const
104
<a name="l00118"></a>00118 <span class="preprocessor">#else</span>
105
<a name="l00119"></a>00119 <span class="preprocessor"></span><span class="keyword">const</span> QwtArray<QwtDoublePoint> &<a class="code" href="class_qwt_polygon_f_data.html#f4df6087de5e5dbea7215ce1a48ab917">QwtPolygonFData::data</a>() const
106
<a name="l00120"></a>00120 <span class="preprocessor">#endif</span>
107
<a name="l00121"></a>00121 <span class="preprocessor"></span>{
108
<a name="l00122"></a>00122 <span class="keywordflow">return</span> <a class="code" href="class_qwt_spline.html#784545391f14c014684f391c6d92fd27">d_data</a>;
109
<a name="l00123"></a>00123 }
110
<a name="l00124"></a>00124
111
<a name="l00128"></a><a class="code" href="class_qwt_polygon_f_data.html#f0a94ffbbb3c7f295e3a8ce33a91d521">00128</a> <a class="code" href="class_qwt_data.html">QwtData</a> *<a class="code" href="class_qwt_polygon_f_data.html#f0a94ffbbb3c7f295e3a8ce33a91d521">QwtPolygonFData::copy</a>()<span class="keyword"> const </span>
112
<a name="l00129"></a>00129 <span class="keyword"></span>{
113
<a name="l00130"></a>00130 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_qwt_polygon_f_data.html#83f9b6797ac8c3ca2f5847bdc957d419">QwtPolygonFData</a>(<a class="code" href="class_qwt_spline.html#784545391f14c014684f391c6d92fd27">d_data</a>);
114
<a name="l00131"></a>00131 }
115
<a name="l00132"></a>00132
116
<a name="l00141"></a><a class="code" href="class_qwt_array_data.html#f9f8b1805a8809ababe82cb9df213928">00141</a> <a class="code" href="class_qwt_array_data.html#f9f8b1805a8809ababe82cb9df213928">QwtArrayData::QwtArrayData</a>(
117
<a name="l00142"></a>00142 <span class="keyword">const</span> QwtArray<double> &x, <span class="keyword">const</span> QwtArray<double> &y):
118
<a name="l00143"></a>00143 d_x(x),
119
<a name="l00144"></a>00144 d_y(y)
120
<a name="l00145"></a>00145 {
121
<a name="l00146"></a>00146 }
122
<a name="l00147"></a>00147
123
<a name="l00156"></a><a class="code" href="class_qwt_array_data.html#03728582378006122e8138aeee0f0ca5">00156</a> <a class="code" href="class_qwt_array_data.html#f9f8b1805a8809ababe82cb9df213928">QwtArrayData::QwtArrayData</a>(<span class="keyword">const</span> <span class="keywordtype">double</span> *x, <span class="keyword">const</span> <span class="keywordtype">double</span> *y, size_t size)
124
<a name="l00157"></a>00157 {
125
<a name="l00158"></a>00158 <span class="preprocessor">#if QT_VERSION >= 0x040000</span>
126
<a name="l00159"></a>00159 <span class="preprocessor"></span> d_x.resize(size);
127
<a name="l00160"></a>00160 qMemCopy(d_x.data(), x, size * <span class="keyword">sizeof</span>(double));
128
<a name="l00161"></a>00161
129
<a name="l00162"></a>00162 d_y.resize(size);
130
<a name="l00163"></a>00163 qMemCopy(d_y.data(), y, size * <span class="keyword">sizeof</span>(double));
131
<a name="l00164"></a>00164 <span class="preprocessor">#else</span>
132
<a name="l00165"></a>00165 <span class="preprocessor"></span> d_x.detach();
133
<a name="l00166"></a>00166 d_x.duplicate(x, size);
134
<a name="l00167"></a>00167
135
<a name="l00168"></a>00168 d_y.detach();
136
<a name="l00169"></a>00169 d_y.duplicate(y, size);
137
<a name="l00170"></a>00170 <span class="preprocessor">#endif</span>
138
<a name="l00171"></a>00171 <span class="preprocessor"></span>}
139
<a name="l00172"></a>00172
140
<a name="l00174"></a><a class="code" href="class_qwt_array_data.html#95fc3e82d7a76775ec082ec063656d07">00174</a> <a class="code" href="class_qwt_array_data.html">QwtArrayData</a>& <a class="code" href="class_qwt_array_data.html#95fc3e82d7a76775ec082ec063656d07">QwtArrayData::operator=</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_array_data.html">QwtArrayData</a> &data)
141
<a name="l00175"></a>00175 {
142
<a name="l00176"></a>00176 <span class="keywordflow">if</span> (<span class="keyword">this</span> != &data)
143
<a name="l00177"></a>00177 {
144
<a name="l00178"></a>00178 d_x = data.<a class="code" href="class_qwt_array_data.html#e0b86206b9f0fcb8a9326eb83bbcbf8a">d_x</a>;
145
<a name="l00179"></a>00179 d_y = data.<a class="code" href="class_qwt_array_data.html#6e075476eed8adb22b3be56a8a092ce2">d_y</a>;
146
<a name="l00180"></a>00180 }
147
<a name="l00181"></a>00181 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
148
<a name="l00182"></a>00182 }
149
<a name="l00183"></a>00183
150
<a name="l00185"></a><a class="code" href="class_qwt_array_data.html#8bd01194139625b3824f42562b26e3f9">00185</a> size_t <a class="code" href="class_qwt_array_data.html#8bd01194139625b3824f42562b26e3f9">QwtArrayData::size</a>()<span class="keyword"> const </span>
151
<a name="l00186"></a>00186 <span class="keyword"></span>{
152
<a name="l00187"></a>00187 <span class="keywordflow">return</span> qwtMin(d_x.size(), d_y.size());
153
<a name="l00188"></a>00188 }
154
<a name="l00189"></a>00189
155
<a name="l00196"></a><a class="code" href="class_qwt_array_data.html#21c38a3eb30779ab8044a67cf66c69ba">00196</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_array_data.html#21c38a3eb30779ab8044a67cf66c69ba">QwtArrayData::x</a>(size_t i)<span class="keyword"> const </span>
156
<a name="l00197"></a>00197 <span class="keyword"></span>{
157
<a name="l00198"></a>00198 <span class="keywordflow">return</span> d_x[int(i)];
158
<a name="l00199"></a>00199 }
159
<a name="l00200"></a>00200
160
<a name="l00207"></a><a class="code" href="class_qwt_array_data.html#db47c5cb8fc2c8547f2fb6069e266dc6">00207</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_array_data.html#db47c5cb8fc2c8547f2fb6069e266dc6">QwtArrayData::y</a>(size_t i)<span class="keyword"> const </span>
161
<a name="l00208"></a>00208 <span class="keyword"></span>{
162
<a name="l00209"></a>00209 <span class="keywordflow">return</span> d_y[int(i)];
163
<a name="l00210"></a>00210 }
164
<a name="l00211"></a>00211
165
<a name="l00213"></a><a class="code" href="class_qwt_array_data.html#dc4d778c9781056b41e2bb1a678e6b40">00213</a> <span class="keyword">const</span> QwtArray<double> &<a class="code" href="class_qwt_array_data.html#dc4d778c9781056b41e2bb1a678e6b40">QwtArrayData::xData</a>()<span class="keyword"> const</span>
166
<a name="l00214"></a>00214 <span class="keyword"></span>{
167
<a name="l00215"></a>00215 <span class="keywordflow">return</span> d_x;
168
<a name="l00216"></a>00216 }
169
<a name="l00217"></a>00217
170
<a name="l00219"></a><a class="code" href="class_qwt_array_data.html#51e4a6afd8e091838e65e9322207a7e6">00219</a> <span class="keyword">const</span> QwtArray<double> &<a class="code" href="class_qwt_array_data.html#51e4a6afd8e091838e65e9322207a7e6">QwtArrayData::yData</a>()<span class="keyword"> const</span>
171
<a name="l00220"></a>00220 <span class="keyword"></span>{
172
<a name="l00221"></a>00221 <span class="keywordflow">return</span> d_y;
173
<a name="l00222"></a>00222 }
174
<a name="l00223"></a>00223
175
<a name="l00227"></a><a class="code" href="class_qwt_array_data.html#7c3e0ac159a2b178f457dfc35fff7d34">00227</a> <a class="code" href="class_qwt_data.html">QwtData</a> *<a class="code" href="class_qwt_array_data.html#7c3e0ac159a2b178f457dfc35fff7d34">QwtArrayData::copy</a>()<span class="keyword"> const </span>
176
<a name="l00228"></a>00228 <span class="keyword"></span>{
177
<a name="l00229"></a>00229 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_qwt_array_data.html#f9f8b1805a8809ababe82cb9df213928">QwtArrayData</a>(d_x, d_y);
178
<a name="l00230"></a>00230 }
179
<a name="l00231"></a>00231
180
<a name="l00237"></a><a class="code" href="class_qwt_array_data.html#8b768da7b7da1581ba3923f94a735035">00237</a> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> <a class="code" href="class_qwt_array_data.html#8b768da7b7da1581ba3923f94a735035">QwtArrayData::boundingRect</a>()<span class="keyword"> const</span>
181
<a name="l00238"></a>00238 <span class="keyword"></span>{
182
<a name="l00239"></a>00239 <span class="keyword">const</span> size_t sz = <a class="code" href="class_qwt_array_data.html#8bd01194139625b3824f42562b26e3f9">size</a>();
183
<a name="l00240"></a>00240
184
<a name="l00241"></a>00241 <span class="keywordflow">if</span> ( sz <= 0 )
185
<a name="l00242"></a>00242 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>(1.0, 1.0, -2.0, -2.0); <span class="comment">// invalid</span>
186
<a name="l00243"></a>00243
187
<a name="l00244"></a>00244 <span class="keywordtype">double</span> minX, maxX, minY, maxY;
188
<a name="l00245"></a>00245 QwtArray<double>::ConstIterator xIt = d_x.begin();
189
<a name="l00246"></a>00246 QwtArray<double>::ConstIterator yIt = d_y.begin();
190
<a name="l00247"></a>00247 QwtArray<double>::ConstIterator end = d_x.begin() + sz;
191
<a name="l00248"></a>00248 minX = maxX = *xIt++;
192
<a name="l00249"></a>00249 minY = maxY = *yIt++;
193
<a name="l00250"></a>00250
194
<a name="l00251"></a>00251 <span class="keywordflow">while</span> ( xIt < end )
195
<a name="l00252"></a>00252 {
196
<a name="l00253"></a>00253 <span class="keyword">const</span> <span class="keywordtype">double</span> xv = *xIt++;
197
<a name="l00254"></a>00254 <span class="keywordflow">if</span> ( xv < minX )
198
<a name="l00255"></a>00255 minX = xv;
199
<a name="l00256"></a>00256 <span class="keywordflow">if</span> ( xv > maxX )
200
<a name="l00257"></a>00257 maxX = xv;
201
<a name="l00258"></a>00258
202
<a name="l00259"></a>00259 <span class="keyword">const</span> <span class="keywordtype">double</span> yv = *yIt++;
203
<a name="l00260"></a>00260 <span class="keywordflow">if</span> ( yv < minY )
204
<a name="l00261"></a>00261 minY = yv;
205
<a name="l00262"></a>00262 <span class="keywordflow">if</span> ( yv > maxY )
206
<a name="l00263"></a>00263 maxY = yv;
207
<a name="l00264"></a>00264 }
208
<a name="l00265"></a>00265 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>(minX, minY, maxX - minX, maxY - minY);
209
<a name="l00266"></a>00266 }
210
<a name="l00267"></a>00267
211
<a name="l00281"></a><a class="code" href="class_qwt_c_pointer_data.html#795b86d69226d1aabf9356848da6c083">00281</a> <a class="code" href="class_qwt_c_pointer_data.html#795b86d69226d1aabf9356848da6c083">QwtCPointerData::QwtCPointerData</a>(
212
<a name="l00282"></a>00282 <span class="keyword">const</span> <span class="keywordtype">double</span> *x, <span class="keyword">const</span> <span class="keywordtype">double</span> *y, size_t size):
213
<a name="l00283"></a>00283 d_x(x),
214
<a name="l00284"></a>00284 d_y(y),
215
<a name="l00285"></a>00285 d_size(size)
216
<a name="l00286"></a>00286 {
217
<a name="l00287"></a>00287 }
218
<a name="l00288"></a>00288
219
<a name="l00290"></a><a class="code" href="class_qwt_c_pointer_data.html#96f6005a8a62716ea57a856bf42245ae">00290</a> <a class="code" href="class_qwt_c_pointer_data.html">QwtCPointerData</a>& <a class="code" href="class_qwt_c_pointer_data.html#96f6005a8a62716ea57a856bf42245ae">QwtCPointerData::operator=</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_c_pointer_data.html">QwtCPointerData</a> &data)
220
<a name="l00291"></a>00291 {
221
<a name="l00292"></a>00292 <span class="keywordflow">if</span> (<span class="keyword">this</span> != &data)
222
<a name="l00293"></a>00293 {
223
<a name="l00294"></a>00294 d_x = data.<a class="code" href="class_qwt_c_pointer_data.html#927c80a3ea18b0815cf75582a7f6e929">d_x</a>;
224
<a name="l00295"></a>00295 d_y = data.<a class="code" href="class_qwt_c_pointer_data.html#97038e3d23bea2b9088b9707096326ae">d_y</a>;
225
<a name="l00296"></a>00296 d_size = data.<a class="code" href="class_qwt_c_pointer_data.html#5c104ac9f16968c12bb68e6a2c453363">d_size</a>;
226
<a name="l00297"></a>00297 }
227
<a name="l00298"></a>00298 <span class="keywordflow">return</span> *<span class="keyword">this</span>;
228
<a name="l00299"></a>00299 }
229
<a name="l00300"></a>00300
230
<a name="l00302"></a><a class="code" href="class_qwt_c_pointer_data.html#a8f1b8d366e873bbeac9f1edb21e5ced">00302</a> size_t <a class="code" href="class_qwt_c_pointer_data.html#a8f1b8d366e873bbeac9f1edb21e5ced">QwtCPointerData::size</a>()<span class="keyword"> const </span>
231
<a name="l00303"></a>00303 <span class="keyword"></span>{
232
<a name="l00304"></a>00304 <span class="keywordflow">return</span> d_size;
233
<a name="l00305"></a>00305 }
234
<a name="l00306"></a>00306
235
<a name="l00313"></a><a class="code" href="class_qwt_c_pointer_data.html#7567731113558126d13825baa230bed0">00313</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_c_pointer_data.html#7567731113558126d13825baa230bed0">QwtCPointerData::x</a>(size_t i)<span class="keyword"> const </span>
236
<a name="l00314"></a>00314 <span class="keyword"></span>{
237
<a name="l00315"></a>00315 <span class="keywordflow">return</span> d_x[int(i)];
238
<a name="l00316"></a>00316 }
239
<a name="l00317"></a>00317
240
<a name="l00324"></a><a class="code" href="class_qwt_c_pointer_data.html#1e81ea4a4695c0bd9c0f0a3ed12c7f95">00324</a> <span class="keywordtype">double</span> <a class="code" href="class_qwt_c_pointer_data.html#1e81ea4a4695c0bd9c0f0a3ed12c7f95">QwtCPointerData::y</a>(size_t i)<span class="keyword"> const </span>
241
<a name="l00325"></a>00325 <span class="keyword"></span>{
242
<a name="l00326"></a>00326 <span class="keywordflow">return</span> d_y[int(i)];
243
<a name="l00327"></a>00327 }
244
<a name="l00328"></a>00328
245
<a name="l00330"></a><a class="code" href="class_qwt_c_pointer_data.html#14a9ffd24edd86bf19d09bb9adb5e5fa">00330</a> <span class="keyword">const</span> <span class="keywordtype">double</span> *<a class="code" href="class_qwt_c_pointer_data.html#14a9ffd24edd86bf19d09bb9adb5e5fa">QwtCPointerData::xData</a>()<span class="keyword"> const</span>
246
<a name="l00331"></a>00331 <span class="keyword"></span>{
247
<a name="l00332"></a>00332 <span class="keywordflow">return</span> d_x;
248
<a name="l00333"></a>00333 }
249
<a name="l00334"></a>00334
250
<a name="l00336"></a><a class="code" href="class_qwt_c_pointer_data.html#e375562f2121b97972beffdb48e4919e">00336</a> <span class="keyword">const</span> <span class="keywordtype">double</span> *<a class="code" href="class_qwt_c_pointer_data.html#e375562f2121b97972beffdb48e4919e">QwtCPointerData::yData</a>()<span class="keyword"> const</span>
251
<a name="l00337"></a>00337 <span class="keyword"></span>{
252
<a name="l00338"></a>00338 <span class="keywordflow">return</span> d_y;
253
<a name="l00339"></a>00339 }
254
<a name="l00340"></a>00340
255
<a name="l00344"></a><a class="code" href="class_qwt_c_pointer_data.html#2d61a1ee08d993ecff482c3a817c9f23">00344</a> <a class="code" href="class_qwt_data.html">QwtData</a> *<a class="code" href="class_qwt_c_pointer_data.html#2d61a1ee08d993ecff482c3a817c9f23">QwtCPointerData::copy</a>()<span class="keyword"> const </span>
256
<a name="l00345"></a>00345 <span class="keyword"></span>{
257
<a name="l00346"></a>00346 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_qwt_c_pointer_data.html#795b86d69226d1aabf9356848da6c083">QwtCPointerData</a>(d_x, d_y, d_size);
258
<a name="l00347"></a>00347 }
259
<a name="l00348"></a>00348
260
<a name="l00354"></a><a class="code" href="class_qwt_c_pointer_data.html#48a6ef2a79c86d19f5b8f05a03c409d7">00354</a> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a> <a class="code" href="class_qwt_c_pointer_data.html#48a6ef2a79c86d19f5b8f05a03c409d7">QwtCPointerData::boundingRect</a>()<span class="keyword"> const</span>
261
<a name="l00355"></a>00355 <span class="keyword"></span>{
262
<a name="l00356"></a>00356 <span class="keyword">const</span> size_t sz = <a class="code" href="class_qwt_c_pointer_data.html#a8f1b8d366e873bbeac9f1edb21e5ced">size</a>();
263
<a name="l00357"></a>00357
264
<a name="l00358"></a>00358 <span class="keywordflow">if</span> ( sz <= 0 )
265
<a name="l00359"></a>00359 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>(1.0, 1.0, -2.0, -2.0); <span class="comment">// invalid</span>
266
<a name="l00360"></a>00360
267
<a name="l00361"></a>00361 <span class="keywordtype">double</span> minX, maxX, minY, maxY;
268
<a name="l00362"></a>00362 <span class="keyword">const</span> <span class="keywordtype">double</span> *xIt = d_x;
269
<a name="l00363"></a>00363 <span class="keyword">const</span> <span class="keywordtype">double</span> *yIt = d_y;
270
<a name="l00364"></a>00364 <span class="keyword">const</span> <span class="keywordtype">double</span> *end = d_x + sz;
271
<a name="l00365"></a>00365 minX = maxX = *xIt++;
272
<a name="l00366"></a>00366 minY = maxY = *yIt++;
273
<a name="l00367"></a>00367
274
<a name="l00368"></a>00368 <span class="keywordflow">while</span> ( xIt < end )
275
<a name="l00369"></a>00369 {
276
<a name="l00370"></a>00370 <span class="keyword">const</span> <span class="keywordtype">double</span> xv = *xIt++;
277
<a name="l00371"></a>00371 <span class="keywordflow">if</span> ( xv < minX )
278
<a name="l00372"></a>00372 minX = xv;
279
<a name="l00373"></a>00373 <span class="keywordflow">if</span> ( xv > maxX )
280
<a name="l00374"></a>00374 maxX = xv;
281
<a name="l00375"></a>00375
282
<a name="l00376"></a>00376 <span class="keyword">const</span> <span class="keywordtype">double</span> yv = *yIt++;
283
<a name="l00377"></a>00377 <span class="keywordflow">if</span> ( yv < minY )
284
<a name="l00378"></a>00378 minY = yv;
285
<a name="l00379"></a>00379 <span class="keywordflow">if</span> ( yv > maxY )
286
<a name="l00380"></a>00380 maxY = yv;
287
<a name="l00381"></a>00381 }
288
<a name="l00382"></a>00382 <span class="keywordflow">return</span> <a class="code" href="qwt__double__rect_8h.html#0c0dc4d33592fac4ad94734d8e9c4152">QwtDoubleRect</a>(minX, minY, maxX - minX, maxY - minY);
289
<a name="l00383"></a>00383 }
290
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Thu May 1 15:44:08 2008 for Qwt User's Guide by
291
<a href="http://www.doxygen.org/index.html">
292
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.0 </small></address>
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qwt-5.1.0/doc/html/qwt__data_8cpp-source.html
