qwt__color__map_8cpp-source.html

QWT5.01用于Qt开发的二维图形库程序

<a name="l00121"></a>00121         <span class="keyword">const</span> <span class="keywordtype">int</span> middle = index + half;
<a name="l00122"></a>00122 
<a name="l00123"></a>00123         <span class="keywordflow">if</span> ( stops[middle].pos &lt;= pos ) 
<a name="l00124"></a>00124         {
<a name="l00125"></a>00125             index = middle + 1;
<a name="l00126"></a>00126             n -= half + 1;
<a name="l00127"></a>00127         } 
<a name="l00128"></a>00128         <span class="keywordflow">else</span> 
<a name="l00129"></a>00129             n = half;
<a name="l00130"></a>00130     }
<a name="l00131"></a>00131 
<a name="l00132"></a>00132     <span class="keywordflow">return</span> index;
<a name="l00133"></a>00133 }
<a name="l00134"></a>00134 
<a name="l00135"></a>00135 <span class="keyword">inline</span> QRgb <a class="code" href="class_qwt_linear_color_map.html#db056bd9487fde980a85da8ea5ec6188">QwtLinearColorMap::ColorStops::rgb</a>(
<a name="l00136"></a>00136     <a class="code" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">QwtLinearColorMap::Mode</a> mode, <span class="keywordtype">double</span> pos)<span class="keyword"> const</span>
<a name="l00137"></a>00137 <span class="keyword"></span>{
<a name="l00138"></a>00138     <span class="keywordflow">if</span> ( pos &lt;= 0.0 )
<a name="l00139"></a>00139         <span class="keywordflow">return</span> _stops[0].rgb;
<a name="l00140"></a>00140     <span class="keywordflow">if</span> ( pos &gt;= 1.0 )
<a name="l00141"></a>00141         <span class="keywordflow">return</span> _stops[(int)(_stops.size() - 1)].rgb;
<a name="l00142"></a>00142 
<a name="l00143"></a>00143     <span class="keyword">const</span> <span class="keywordtype">int</span> index = findUpper(pos);
<a name="l00144"></a>00144     <span class="keywordflow">if</span> ( mode == FixedColors )
<a name="l00145"></a>00145     {
<a name="l00146"></a>00146         <span class="keywordflow">return</span> _stops[index-1].rgb;
<a name="l00147"></a>00147     }
<a name="l00148"></a>00148     <span class="keywordflow">else</span>
<a name="l00149"></a>00149     {
<a name="l00150"></a>00150         <span class="keyword">const</span> ColorStop &amp;s1 = _stops[index-1];
<a name="l00151"></a>00151         <span class="keyword">const</span> ColorStop &amp;s2 = _stops[index];
<a name="l00152"></a>00152 
<a name="l00153"></a>00153         <span class="keyword">const</span> <span class="keywordtype">double</span> ratio = (pos - s1.pos) / (s2.pos - s1.pos);
<a name="l00154"></a>00154 
<a name="l00155"></a>00155         <span class="keyword">const</span> <span class="keywordtype">int</span> r = s1.r + qRound(ratio * (s2.r - s1.r));
<a name="l00156"></a>00156         <span class="keyword">const</span> <span class="keywordtype">int</span> g = s1.g + qRound(ratio * (s2.g - s1.g));
<a name="l00157"></a>00157         <span class="keyword">const</span> <span class="keywordtype">int</span> b = s1.b + qRound(ratio * (s2.b - s1.b));
<a name="l00158"></a>00158     
<a name="l00159"></a>00159         <span class="keywordflow">return</span> qRgb(r, g, b);
<a name="l00160"></a>00160     }
<a name="l00161"></a>00161 }
<a name="l00162"></a>00162 
<a name="l00164"></a><a class="code" href="class_qwt_color_map.html#2ab0a6041ea6d37c0609ca2e3bd976ca">00164</a> <a class="code" href="class_qwt_color_map.html#2ab0a6041ea6d37c0609ca2e3bd976ca">QwtColorMap::QwtColorMap</a>(<a class="code" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">Format</a> format):
<a name="l00165"></a>00165     d_format(format)
<a name="l00166"></a>00166 {
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168 
<a name="l00170"></a><a class="code" href="class_qwt_color_map.html#f20e4ffdb3c5d34f5a6dc301bcbb9f7e">00170</a> <a class="code" href="class_qwt_color_map.html#f20e4ffdb3c5d34f5a6dc301bcbb9f7e">QwtColorMap::~QwtColorMap</a>()
<a name="l00171"></a>00171 {
<a name="l00172"></a>00172 }
<a name="l00173"></a>00173 
<a name="l00183"></a><a class="code" href="class_qwt_color_map.html#082823238104fbc6cb146e7aafa571f6">00183</a> QwtColorTable <a class="code" href="class_qwt_color_map.html#082823238104fbc6cb146e7aafa571f6">QwtColorMap::colorTable</a>(
<a name="l00184"></a>00184     <span class="keyword">const</span> <a class="code" href="class_qwt_double_interval.html">QwtDoubleInterval</a> &amp;interval)<span class="keyword"> const</span>
<a name="l00185"></a>00185 <span class="keyword"></span>{
<a name="l00186"></a>00186     QwtColorTable table(256);
<a name="l00187"></a>00187 
<a name="l00188"></a>00188     <span class="keywordflow">if</span> ( interval.<a class="code" href="class_qwt_double_interval.html#311402213e243b809008faaec00507d5">isValid</a>() )
<a name="l00189"></a>00189     {
<a name="l00190"></a>00190         <span class="keyword">const</span> <span class="keywordtype">double</span> step = interval.<a class="code" href="class_qwt_double_interval.html#b5d610e0d1fc9a5a3bc020dd39326327">width</a>() / (table.size() - 1);
<a name="l00191"></a>00191         <span class="keywordflow">for</span> ( <span class="keywordtype">int</span> i = 0; i &lt; (int) table.size(); i++ )
<a name="l00192"></a>00192             table[i] = <a class="code" href="class_qwt_color_map.html#be172f151f0a8c24f4a7e0908b0b983f">rgb</a>(interval, interval.<a class="code" href="class_qwt_double_interval.html#2d7d56e81ee75911f176c94f6aaf4b8b">minValue</a>() + step * i);
<a name="l00193"></a>00193     }
<a name="l00194"></a>00194 
<a name="l00195"></a>00195     <span class="keywordflow">return</span> table;
<a name="l00196"></a>00196 }
<a name="l00197"></a>00197 
<a name="l00198"></a>00198 <span class="keyword">class </span>QwtLinearColorMap::PrivateData
<a name="l00199"></a>00199 {
<a name="l00200"></a>00200 <span class="keyword">public</span>:
<a name="l00201"></a>00201     ColorStops <a class="code" href="class_qwt_linear_color_map.html#af8dce1941b5792146faa92db34d2592">colorStops</a>;
<a name="l00202"></a>00202     <a class="code" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">QwtLinearColorMap::Mode</a> mode;
<a name="l00203"></a>00203 };
<a name="l00204"></a>00204 
<a name="l00211"></a><a class="code" href="class_qwt_linear_color_map.html#0ef6a29bb027017aad89a4c4a4b07019">00211</a> <a class="code" href="class_qwt_linear_color_map.html#0ef6a29bb027017aad89a4c4a4b07019">QwtLinearColorMap::QwtLinearColorMap</a>(<a class="code" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> <a class="code" href="class_qwt_color_map.html#436802833ae1d4694f376655bc3d75be">format</a>):
<a name="l00212"></a>00212     <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>(format)
<a name="l00213"></a>00213 {
<a name="l00214"></a>00214     d_data = <span class="keyword">new</span> PrivateData;
<a name="l00215"></a>00215     d_data-&gt;mode = ScaledColors;
<a name="l00216"></a>00216 
<a name="l00217"></a>00217     <a class="code" href="class_qwt_linear_color_map.html#bfae35c30755c0bbd1447342055e9a13">setColorInterval</a>( Qt::blue, Qt::yellow);
<a name="l00218"></a>00218 }
<a name="l00219"></a>00219 
<a name="l00221"></a><a class="code" href="class_qwt_linear_color_map.html#bf6693327112639be15c172458c0c653">00221</a> <a class="code" href="class_qwt_linear_color_map.html#0ef6a29bb027017aad89a4c4a4b07019">QwtLinearColorMap::QwtLinearColorMap</a>(<span class="keyword">const</span> <a class="code" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> &amp;other):
<a name="l00222"></a>00222     <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>(other)
<a name="l00223"></a>00223 {
<a name="l00224"></a>00224     d_data = <span class="keyword">new</span> PrivateData;
<a name="l00225"></a>00225     *<span class="keyword">this</span> = other;
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227 
<a name="l00235"></a><a class="code" href="class_qwt_linear_color_map.html#e591cf441db15a021c25d0b58bfa7a5e">00235</a> <a class="code" href="class_qwt_linear_color_map.html#0ef6a29bb027017aad89a4c4a4b07019">QwtLinearColorMap::QwtLinearColorMap</a>(<span class="keyword">const</span> QColor &amp;color1, 
<a name="l00236"></a>00236         <span class="keyword">const</span> QColor &amp;color2, <a class="code" href="class_qwt_color_map.html#9e5570790910fa3894887bca7dc5a670">QwtColorMap::Format</a> format):
<a name="l00237"></a>00237     <a class="code" href="class_qwt_color_map.html">QwtColorMap</a>(format)
<a name="l00238"></a>00238 {
<a name="l00239"></a>00239     d_data = <span class="keyword">new</span> PrivateData;
<a name="l00240"></a>00240     d_data-&gt;mode = ScaledColors;
<a name="l00241"></a>00241     <a class="code" href="class_qwt_linear_color_map.html#bfae35c30755c0bbd1447342055e9a13">setColorInterval</a>(color1, color2); 
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243 
<a name="l00245"></a><a class="code" href="class_qwt_linear_color_map.html#82caa759e44d439aa9866bd03e2e3696">00245</a> <a class="code" href="class_qwt_linear_color_map.html#82caa759e44d439aa9866bd03e2e3696">QwtLinearColorMap::~QwtLinearColorMap</a>()
<a name="l00246"></a>00246 {
<a name="l00247"></a>00247     <span class="keyword">delete</span> d_data;
<a name="l00248"></a>00248 }
<a name="l00249"></a>00249 
<a name="l00251"></a><a class="code" href="class_qwt_linear_color_map.html#331029567a42610143ec41b22e882143">00251</a> <a class="code" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> &amp;<a class="code" href="class_qwt_linear_color_map.html#331029567a42610143ec41b22e882143">QwtLinearColorMap::operator=</a>(
<a name="l00252"></a>00252     <span class="keyword">const</span> <a class="code" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a> &amp;other)
<a name="l00253"></a>00253 {
<a name="l00254"></a>00254     QwtColorMap::operator=(other);
<a name="l00255"></a>00255     *d_data = *other.<a class="code" href="class_qwt_linear_color_map.html#69cf8f4eed1a99492a2da3eded4004ba">d_data</a>;
<a name="l00256"></a>00256     <span class="keywordflow">return</span> *<span class="keyword">this</span>;
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258 
<a name="l00260"></a><a class="code" href="class_qwt_linear_color_map.html#ce66f2146c718e450878e164a727c7a8">00260</a> <a class="code" href="class_qwt_color_map.html">QwtColorMap</a> *<a class="code" href="class_qwt_linear_color_map.html#ce66f2146c718e450878e164a727c7a8">QwtLinearColorMap::copy</a>()<span class="keyword"> const</span>
<a name="l00261"></a>00261 <span class="keyword"></span>{
<a name="l00262"></a>00262     <a class="code" href="class_qwt_linear_color_map.html">QwtLinearColorMap</a>* map = <span class="keyword">new</span> <a class="code" href="class_qwt_linear_color_map.html#0ef6a29bb027017aad89a4c4a4b07019">QwtLinearColorMap</a>();
<a name="l00263"></a>00263     *map = *<span class="keyword">this</span>;
<a name="l00264"></a>00264 
<a name="l00265"></a>00265     <span class="keywordflow">return</span> map;
<a name="l00266"></a>00266 }
<a name="l00267"></a>00267 
<a name="l00277"></a><a class="code" href="class_qwt_linear_color_map.html#fca7397fb6d07d05bab83e83e274a9c2">00277</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_linear_color_map.html#fca7397fb6d07d05bab83e83e274a9c2">QwtLinearColorMap::setMode</a>(<a class="code" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">Mode</a> mode)
<a name="l00278"></a>00278 {
<a name="l00279"></a>00279     d_data-&gt;mode = mode;
<a name="l00280"></a>00280 }
<a name="l00281"></a>00281 
<a name="l00286"></a><a class="code" href="class_qwt_linear_color_map.html#9ec309df6ec88472a63b14ac2c692c96">00286</a> <a class="code" href="class_qwt_linear_color_map.html#c8c5f1991f533b1d25a9a0a0874b7d54">QwtLinearColorMap::Mode</a> <a class="code" href="class_qwt_linear_color_map.html#9ec309df6ec88472a63b14ac2c692c96">QwtLinearColorMap::mode</a>()<span class="keyword"> const</span>
<a name="l00287"></a>00287 <span class="keyword"></span>{
<a name="l00288"></a>00288     <span class="keywordflow">return</span> d_data-&gt;mode;
<a name="l00289"></a>00289 }
<a name="l00290"></a>00290 
<a name="l00301"></a><a class="code" href="class_qwt_linear_color_map.html#bfae35c30755c0bbd1447342055e9a13">00301</a> <span class="keywordtype">void</span> <a class="code" href="class_qwt_linear_color_map.html#bfae35c30755c0bbd1447342055e9a13">QwtLinearColorMap::setColorInterval</a>(
<a name="l00302"></a>00302     <span class="keyword">const</span> QColor &amp;color1, <span class="keyword">const</span> QColor &amp;color2)
<a name="l00303"></a>00303 {
<a name="l00304"></a>00304     d_data-&gt;colorStops = ColorStops();
<a name="l00305"></a>00305     d_data-&gt;colorStops.insert(0.0, color1);