qwt__scale__map_8h-source.html

QWT5.01用于Qt开发的二维图形库程序

<a name="l00078"></a>00078     <span class="keyword">inline</span> <span class="keywordtype">double</span> p2() <span class="keyword">const</span>;
<a name="l00079"></a>00079 
<a name="l00080"></a>00080     <span class="keyword">inline</span> <span class="keywordtype">double</span> s1() <span class="keyword">const</span>;
<a name="l00081"></a>00081     <span class="keyword">inline</span> <span class="keywordtype">double</span> s2() <span class="keyword">const</span>;
<a name="l00082"></a>00082 
<a name="l00083"></a>00083     <span class="keyword">inline</span> <span class="keywordtype">double</span> pDist() <span class="keyword">const</span>;
<a name="l00084"></a>00084     <span class="keyword">inline</span> <span class="keywordtype">double</span> sDist() <span class="keyword">const</span>;
<a name="l00085"></a>00085 
<a name="l00086"></a><a class="code" href="class_qwt_scale_map.html#dacf5fdb36940d39929993083f6cb64b">00086</a>     QT_STATIC_CONST <span class="keywordtype">double</span> LogMin;
<a name="l00087"></a><a class="code" href="class_qwt_scale_map.html#0f06d4698bcb8af2200e37609b4b88c4">00087</a>     QT_STATIC_CONST <span class="keywordtype">double</span> LogMax;
<a name="l00088"></a>00088 
<a name="l00089"></a>00089 <span class="keyword">private</span>:
<a name="l00090"></a>00090     <span class="keywordtype">void</span> newFactor();   
<a name="l00091"></a>00091 
<a name="l00092"></a>00092     <span class="keywordtype">double</span> d_s1, d_s2;     <span class="comment">// scale interval boundaries</span>
<a name="l00093"></a>00093     <span class="keywordtype">double</span> d_p1, d_p2;     <span class="comment">// paint device interval boundaries</span>
<a name="l00094"></a>00094 
<a name="l00095"></a>00095     <span class="keywordtype">double</span> d_cnv;       <span class="comment">// conversion factor</span>
<a name="l00096"></a>00096 
<a name="l00097"></a>00097     <a class="code" href="class_qwt_scale_transformation.html">QwtScaleTransformation</a> *d_transformation;
<a name="l00098"></a>00098 };
<a name="l00099"></a>00099 
<a name="l00103"></a><a class="code" href="class_qwt_scale_map.html#38b6a7040cd15a427f7631afa20cbad8">00103</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#38b6a7040cd15a427f7631afa20cbad8">QwtScaleMap::s1</a>()<span class="keyword"> const </span>
<a name="l00104"></a>00104 <span class="keyword"></span>{
<a name="l00105"></a>00105     <span class="keywordflow">return</span> d_s1;
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107 
<a name="l00111"></a><a class="code" href="class_qwt_scale_map.html#644fe199eecf30fcd1803be554cd21f7">00111</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#644fe199eecf30fcd1803be554cd21f7">QwtScaleMap::s2</a>()<span class="keyword"> const </span>
<a name="l00112"></a>00112 <span class="keyword"></span>{
<a name="l00113"></a>00113     <span class="keywordflow">return</span> d_s2;
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 
<a name="l00119"></a><a class="code" href="class_qwt_scale_map.html#c1ca2f9b4643d27fde693cc98bca0cd7">00119</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#c1ca2f9b4643d27fde693cc98bca0cd7">QwtScaleMap::p1</a>()<span class="keyword"> const </span>
<a name="l00120"></a>00120 <span class="keyword"></span>{
<a name="l00121"></a>00121     <span class="keywordflow">return</span> d_p1;
<a name="l00122"></a>00122 }
<a name="l00123"></a>00123 
<a name="l00127"></a><a class="code" href="class_qwt_scale_map.html#cf404215292b10bd46b1089d2452b8e9">00127</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#cf404215292b10bd46b1089d2452b8e9">QwtScaleMap::p2</a>()<span class="keyword"> const </span>
<a name="l00128"></a>00128 <span class="keyword"></span>{
<a name="l00129"></a>00129     <span class="keywordflow">return</span> d_p2;
<a name="l00130"></a>00130 }
<a name="l00131"></a>00131 
<a name="l00132"></a><a class="code" href="class_qwt_scale_map.html#f364d4fa10db6f5dbc93d6ce763e603f">00132</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#f364d4fa10db6f5dbc93d6ce763e603f">QwtScaleMap::pDist</a>()<span class="keyword"> const</span>
<a name="l00133"></a>00133 <span class="keyword"></span>{
<a name="l00134"></a>00134     <span class="keywordflow">return</span> qwtAbs(d_p2 - d_p1);
<a name="l00135"></a>00135 }
<a name="l00136"></a>00136 
<a name="l00137"></a><a class="code" href="class_qwt_scale_map.html#df621246cfa7313280a35a44063972f3">00137</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#df621246cfa7313280a35a44063972f3">QwtScaleMap::sDist</a>()<span class="keyword"> const</span>
<a name="l00138"></a>00138 <span class="keyword"></span>{
<a name="l00139"></a>00139     <span class="keywordflow">return</span> qwtAbs(d_s2 - d_s1);
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141 
<a name="l00146"></a><a class="code" href="class_qwt_scale_map.html#053cad00dd463f45c7e1591c9f2d8296">00146</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#053cad00dd463f45c7e1591c9f2d8296">QwtScaleMap::xTransform</a>(<span class="keywordtype">double</span> s)<span class="keyword"> const</span>
<a name="l00147"></a>00147 <span class="keyword"></span>{
<a name="l00148"></a>00148     <span class="comment">// try to inline code from QwtScaleTransformation</span>
<a name="l00149"></a>00149 
<a name="l00150"></a>00150     <span class="keywordflow">if</span> ( d_transformation-&gt;<a class="code" href="class_qwt_scale_transformation.html#8b8936e303f55241599ccbf358ab9215">type</a>() == QwtScaleTransformation::Linear )
<a name="l00151"></a>00151         <span class="keywordflow">return</span> d_p1 + (s - d_s1) * d_cnv;
<a name="l00152"></a>00152 
<a name="l00153"></a>00153     <span class="keywordflow">if</span> ( d_transformation-&gt;<a class="code" href="class_qwt_scale_transformation.html#8b8936e303f55241599ccbf358ab9215">type</a>() == QwtScaleTransformation::Log10 )
<a name="l00154"></a>00154         <span class="keywordflow">return</span> d_p1 + log(s / d_s1) * d_cnv;
<a name="l00155"></a>00155 
<a name="l00156"></a>00156     <span class="keywordflow">return</span> d_transformation-&gt;<a class="code" href="class_qwt_scale_transformation.html#54768a41cd5d7867e74c0d0032e45ec2">xForm</a>(s, d_s1, d_s2, d_p1, d_p2 );
<a name="l00157"></a>00157 }
<a name="l00158"></a>00158 
<a name="l00163"></a><a class="code" href="class_qwt_scale_map.html#0df4d78da09fa88d1063554542c7fb03">00163</a> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#0df4d78da09fa88d1063554542c7fb03">QwtScaleMap::invTransform</a>(<span class="keywordtype">double</span> p)<span class="keyword"> const</span>
<a name="l00164"></a>00164 <span class="keyword"></span>{
<a name="l00165"></a>00165     <span class="keywordflow">return</span> d_transformation-&gt;<a class="code" href="class_qwt_scale_transformation.html#7e2ba833b068f941d79d443bee769b42">invXForm</a>(p, d_p1, d_p2, d_s1, d_s2 );
<a name="l00166"></a>00166 }
<a name="l00167"></a>00167 
<a name="l00175"></a><a class="code" href="class_qwt_scale_map.html#1ddda39f41e137560e625a8c66c1d2e1">00175</a> <span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="class_qwt_scale_map.html#1ddda39f41e137560e625a8c66c1d2e1">QwtScaleMap::transform</a>(<span class="keywordtype">double</span> s)<span class="keyword"> const</span>
<a name="l00176"></a>00176 <span class="keyword"></span>{
<a name="l00177"></a>00177     <span class="keywordflow">return</span> qRound(<a class="code" href="class_qwt_scale_map.html#053cad00dd463f45c7e1591c9f2d8296">xTransform</a>(s));
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179 
<a name="l00180"></a>00180 <span class="preprocessor">#endif</span>
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Mon Feb 26 21:22:38 2007 for Qwt User's Guide by&nbsp;
<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>