qwt__point__polar_8h_source.html
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* -*- mode: C++ ; c-file-style: "stroustrup" -*- *****************************</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Qwt Widget Library</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This library is free software; you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modify it under the terms of the Qwt License, Version 1.0</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *****************************************************************************/</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#ifndef _QWT_POINT_POLAR_H_</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor"></span><span class="preprocessor">#define _QWT_POINT_POLAR_H_ 1</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "qwt_global.h"</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "qwt_math.h"</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <qpoint.h></span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#ifndef QT_NO_DEBUG_STREAM</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor"></span><span class="preprocessor">#include <qdebug.h></span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html"> 28</a></span> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a>();</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a>( <span class="keywordtype">double</span> azimuth, <span class="keywordtype">double</span> radius );</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a> & );</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a>( <span class="keyword">const</span> QPointF & );</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">void</span> setPoint( <span class="keyword">const</span> QPointF & );</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  QPointF toPoint() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">bool</span> isValid() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">bool</span> isNull() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">double</span> radius() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">double</span> azimuth() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> </div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">double</span> &rRadius();</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">double</span> &rAzimuth();</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">void</span> setRadius( <span class="keywordtype">double</span> );</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">void</span> setAzimuth( <span class="keywordtype">double</span> );</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">bool</span> operator==( <span class="keyword">const</span> <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a> & ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">bool</span> operator!=( <span class="keyword">const</span> <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a> & ) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a> normalized() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordtype">double</span> d_azimuth;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">double</span> d_radius;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> };</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#a365875acf86a9f052e12784b5f2f7d44"> 65</a></span> <span class="keyword">inline</span> <a class="code" href="class_qwt_point_polar.html#a365875acf86a9f052e12784b5f2f7d44">QwtPointPolar::QwtPointPolar</a>():</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  d_azimuth( 0.0 ),</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  d_radius( 0.0 )</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> }</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00077"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#af1c77f9730d441937e52ff5beee04975"> 77</a></span> <span class="keyword">inline</span> <a class="code" href="class_qwt_point_polar.html#a365875acf86a9f052e12784b5f2f7d44">QwtPointPolar::QwtPointPolar</a>( <span class="keywordtype">double</span> azimuth, <span class="keywordtype">double</span> radius ):</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  d_azimuth( azimuth ),</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  d_radius( radius )</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> {</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> }</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> </div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#ae5cd7e8ab0505672748f779c9668fe29"> 87</a></span> <span class="keyword">inline</span> <a class="code" href="class_qwt_point_polar.html#a365875acf86a9f052e12784b5f2f7d44">QwtPointPolar::QwtPointPolar</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a> &other ):</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  d_azimuth( other.d_azimuth ),</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  d_radius( other.d_radius )</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> {</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> }</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div>
<div class="line"><a name="l00094"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#ad1f8c93359d28322b6e3eeb9758a66f2"> 94</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_point_polar.html#ad1f8c93359d28322b6e3eeb9758a66f2" title="Returns true if radius() >= 0.0.">QwtPointPolar::isValid</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> d_radius >= 0.0;</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> }</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a name="l00100"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#a73d21f582ee5960011300598e17fab00"> 100</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_point_polar.html#a73d21f582ee5960011300598e17fab00" title="Returns true if radius() >= 0.0.">QwtPointPolar::isNull</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">return</span> d_radius == 0.0;</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00106"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#ab629fcfb36f0f29df45b256c6bddf194"> 106</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_point_polar.html#ab629fcfb36f0f29df45b256c6bddf194" title="Returns the radius.">QwtPointPolar::radius</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">return</span> d_radius;</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> }</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div>
<div class="line"><a name="l00112"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#afac65de2dca25b0b6a6c5fb917fff424"> 112</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_point_polar.html#afac65de2dca25b0b6a6c5fb917fff424" title="Returns the azimuth.">QwtPointPolar::azimuth</a>()<span class="keyword"> const</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword"></span>{</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keywordflow">return</span> d_azimuth;</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> }</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00118"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#a69cf76a959e4417038b4e2684d307847"> 118</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> &<a class="code" href="class_qwt_point_polar.html#a69cf76a959e4417038b4e2684d307847" title="Returns the radius.">QwtPointPolar::rRadius</a>()</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> {</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> d_radius;</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#ae509330927d54dbc7cf65fae42083fce"> 124</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> &<a class="code" href="class_qwt_point_polar.html#ae509330927d54dbc7cf65fae42083fce" title="Returns the azimuth.">QwtPointPolar::rAzimuth</a>()</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span> {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">return</span> d_azimuth;</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> }</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div>
<div class="line"><a name="l00130"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#a31ae2f4d6fad44f51ad5e7444a7f21fe"> 130</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_point_polar.html#a31ae2f4d6fad44f51ad5e7444a7f21fe" title="Sets the radius to radius.">QwtPointPolar::setRadius</a>( <span class="keywordtype">double</span> radius )</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> {</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  d_radius = <a class="code" href="class_qwt_point_polar.html#ab629fcfb36f0f29df45b256c6bddf194" title="Returns the radius.">radius</a>;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00136"></a><span class="lineno"><a class="code" href="class_qwt_point_polar.html#a32c6c64510fce3e087d332305b4aca9e"> 136</a></span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="class_qwt_point_polar.html#a32c6c64510fce3e087d332305b4aca9e" title="Sets the atimuth to atimuth.">QwtPointPolar::setAzimuth</a>( <span class="keywordtype">double</span> azimuth )</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> {</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  d_azimuth = <a class="code" href="class_qwt_point_polar.html#afac65de2dca25b0b6a6c5fb917fff424" title="Returns the azimuth.">azimuth</a>;</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span> }</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span> <span class="preprocessor">#ifndef QT_NO_DEBUG_STREAM</span></div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="preprocessor"></span>QWT_EXPORT QDebug operator<<( QDebug, <span class="keyword">const</span> <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a> & );</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> <span class="keyword">inline</span> QPoint qwtPolar2Pos( <span class="keyword">const</span> QPoint &pole,</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordtype">double</span> radius, <span class="keywordtype">double</span> angle )</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> {</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> x = pole.x() + radius * qCos( angle );</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> y = pole.y() - radius * qSin( angle );</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">return</span> QPoint( qRound( x ), qRound( y ) );</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> }</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keyword">inline</span> QPoint qwtDegree2Pos( <span class="keyword">const</span> QPoint &pole,</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keywordtype">double</span> radius, <span class="keywordtype">double</span> angle )</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> {</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">return</span> qwtPolar2Pos( pole, radius, angle / 180.0 * M_PI );</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span> }</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span> <span class="keyword">inline</span> QPointF qwtPolar2Pos( <span class="keyword">const</span> QPointF &pole,</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">double</span> radius, <span class="keywordtype">double</span> angle )</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> x = pole.x() + radius * qCos( angle );</div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> y = pole.y() - radius * qSin( angle );</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> </div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">return</span> QPointF( x, y);</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> }</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="keyword">inline</span> QPointF qwtDegree2Pos( <span class="keyword">const</span> QPointF &pole,</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <span class="keywordtype">double</span> radius, <span class="keywordtype">double</span> angle )</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> {</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span> qwtPolar2Pos( pole, radius, angle / 180.0 * M_PI );</div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> }</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="keyword">inline</span> QPointF qwtFastPolar2Pos( <span class="keyword">const</span> QPointF &pole,</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordtype">double</span> radius, <span class="keywordtype">double</span> angle )</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> {</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="preprocessor">#if QT_VERSION < 0x040601</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span> <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">double</span> x = pole.x() + radius * ::cos( angle );</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> y = pole.y() - radius * ::sin( angle );</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> <span class="preprocessor"></span> <span class="keyword">const</span> <span class="keywordtype">double</span> x = pole.x() + radius * qFastCos( angle );</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> y = pole.y() - radius * qFastSin( angle );</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <span class="keywordflow">return</span> QPointF( x, y);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> }</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span> </div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> <span class="keyword">inline</span> QPointF qwtFastDegree2Pos( <span class="keyword">const</span> QPointF &pole,</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="keywordtype">double</span> radius, <span class="keywordtype">double</span> angle )</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span> { </div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">return</span> qwtFastPolar2Pos( pole, radius, angle / 180.0 * M_PI );</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> } </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> <span class="keyword">inline</span> <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a> qwtFastPos2Polar( <span class="keyword">const</span> QPointF &pos )</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> {</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keywordflow">return</span> <a class="code" href="class_qwt_point_polar.html" title="A point in polar coordinates.">QwtPointPolar</a>( qwtFastAtan2( pos.y(), pos.x() ),</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  qSqrt( qwtSqr( pos.x() ) + qwtSqr( pos.y() ) ) );</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span> }</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> </div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> <span class="preprocessor">#endif </span></div>
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