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<div class="title">qwt_spline_parametrization.h</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/******************************************************************************</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Qwt Widget Library</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright (C) 1997 Josef Wilgen</span></div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2002 Uwe Rathmann</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
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<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>
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<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>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> *****************************************************************************/</span></div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>  </div>
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<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#ifndef QWT_SPLINE_PARAMETRIZATION_H</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#define QWT_SPLINE_PARAMETRIZATION_H</span></div>
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<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>  </div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "qwt_global.h"</span></div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "qwt_math.h"</span></div>
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<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>  </div>
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<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <qpoint.h></span></div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  </div>
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<div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html"> 44</a></span> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_spline_parametrization.html">QwtSplineParametrization</a></div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48d"> 48</a></span>  <span class="keyword">enum</span> <a class="code" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48d">Type</a></div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  {</div>
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<div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da3eaba94a692d4e23a0714db3288a6a24"> 54</a></span>  <a class="code" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da3eaba94a692d4e23a0714db3288a6a24">ParameterX</a>,</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da30edbcab5070b1f54d7e6d2486cb7ccf"> 60</a></span>  <a class="code" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da30edbcab5070b1f54d7e6d2486cb7ccf">ParameterY</a>,</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  </div>
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<div class="line"><a name="l00072"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48daa34d8f54e326e8964c6131287dd3e478"> 72</a></span>  <a class="code" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48daa34d8f54e326e8964c6131287dd3e478">ParameterUniform</a>,</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  </div>
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<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48daf328ec1c9518bc5aaa9f648731f77ffd"> 82</a></span>  <a class="code" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48daf328ec1c9518bc5aaa9f648731f77ffd">ParameterChordal</a>,</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  </div>
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<div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da3127bf721ca3be4e279f9478ea12270c"> 94</a></span>  <a class="code" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da3127bf721ca3be4e279f9478ea12270c">ParameterCentripetal</a>,</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  </div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  ParameterManhattan</div>
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<div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da45063aa26a8cd803c4d2b75ee89ad449"> 106</a></span>  };</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  </div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">explicit</span> <a class="code" href="class_qwt_spline_parametrization.html">QwtSplineParametrization</a>( <span class="keywordtype">int</span> type );</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keyword">virtual</span> ~<a class="code" href="class_qwt_spline_parametrization.html">QwtSplineParametrization</a>();</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  </div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordtype">int</span> type() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  </div>
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<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">virtual</span> <span class="keywordtype">double</span> valueIncrement( <span class="keyword">const</span> QPointF&, <span class="keyword">const</span> QPointF& ) <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  </div>
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<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> valueIncrementX( <span class="keyword">const</span> QPointF&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> valueIncrementY( <span class="keyword">const</span> QPointF&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> valueIncrementUniform( <span class="keyword">const</span> QPointF&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> valueIncrementChordal( <span class="keyword">const</span> QPointF&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> valueIncrementCentripetal( <span class="keyword">const</span> QPointF&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">static</span> <span class="keywordtype">double</span> valueIncrementManhattan( <span class="keyword">const</span> QPointF&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="keyword">const</span> <span class="keywordtype">int</span> m_type;</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> };</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  </div>
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<div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#a45e45f7ac6df2fbd6ec0bd6d52837e63"> 134</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_spline_parametrization.html#a45e45f7ac6df2fbd6ec0bd6d52837e63">QwtSplineParametrization::valueIncrementX</a>(</div>
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<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">const</span> QPointF& point1, <span class="keyword">const</span> QPointF& point2 )</div>
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<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> {</div>
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<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">return</span> point2.x() - point1.x();</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> }</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  </div>
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<div class="line"><a name="l00148"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#ab5014b377c1f5f945cd7062109728d41"> 148</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_spline_parametrization.html#ab5014b377c1f5f945cd7062109728d41">QwtSplineParametrization::valueIncrementY</a>(</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">const</span> QPointF& point1, <span class="keyword">const</span> QPointF& point2 )</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> {</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordflow">return</span> point2.y() - point1.y();</div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> }</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  </div>
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<div class="line"><a name="l00162"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#a4ec70cdb3d4c1b53628ef516e93390ec"> 162</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_spline_parametrization.html#a4ec70cdb3d4c1b53628ef516e93390ec">QwtSplineParametrization::valueIncrementUniform</a>(</div>
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<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keyword">const</span> QPointF& point1, <span class="keyword">const</span> QPointF& point2 )</div>
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<div class="line"><a name="l00164"></a><span class="lineno"> 164</span> {</div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  Q_UNUSED( point1 )</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  Q_UNUSED( point2 )</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  </div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordflow">return</span> 1.0;</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> }</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  </div>
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<div class="line"><a name="l00179"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#a02659178ea5377ec5e13d71858456200"> 179</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_spline_parametrization.html#a02659178ea5377ec5e13d71858456200">QwtSplineParametrization::valueIncrementChordal</a>(</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keyword">const</span> QPointF& point1, <span class="keyword">const</span> QPointF& point2 )</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span> {</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> dx = point2.x() - point1.x();</div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keyword">const</span> <span class="keywordtype">double</span> dy = point2.y() - point1.y();</div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  </div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordflow">return</span> std::sqrt( dx * dx + dy * dy );</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> }</div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  </div>
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<div class="line"><a name="l00196"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#a141e850c0e8da729dada0870041c265b"> 196</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_spline_parametrization.html#a141e850c0e8da729dada0870041c265b">QwtSplineParametrization::valueIncrementCentripetal</a>(</div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <span class="keyword">const</span> QPointF& point1, <span class="keyword">const</span> QPointF& point2 )</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> {</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  <span class="keywordflow">return</span> std::sqrt( <a class="code" href="class_qwt_spline_parametrization.html#a02659178ea5377ec5e13d71858456200">valueIncrementChordal</a>( point1, point2 ) );</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span> }</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  </div>
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<div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="class_qwt_spline_parametrization.html#aacfc92b2d904b9644e1e0f4fc77fd7a2"> 210</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_spline_parametrization.html#aacfc92b2d904b9644e1e0f4fc77fd7a2">QwtSplineParametrization::valueIncrementManhattan</a>(</div>
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<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keyword">const</span> QPointF& point1, <span class="keyword">const</span> QPointF& point2 )</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span> {</div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> qAbs( point2.x() - point1.x() ) + qAbs( point2.y() - point1.y() );</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span> }</div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  </div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor">#endif</span></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html"><div class="ttname"><a href="class_qwt_spline_parametrization.html">QwtSplineParametrization</a></div><div class="ttdoc">Curve parametrization used for a spline interpolation.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00044">qwt_spline_parametrization.h:45</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_a02659178ea5377ec5e13d71858456200"><div class="ttname"><a href="class_qwt_spline_parametrization.html#a02659178ea5377ec5e13d71858456200">QwtSplineParametrization::valueIncrementChordal</a></div><div class="ttdeci">static double valueIncrementChordal(const QPointF &, const QPointF &)</div><div class="ttdoc">Calculate the ParameterChordal value increment for 2 points.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00179">qwt_spline_parametrization.h:179</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_a141e850c0e8da729dada0870041c265b"><div class="ttname"><a href="class_qwt_spline_parametrization.html#a141e850c0e8da729dada0870041c265b">QwtSplineParametrization::valueIncrementCentripetal</a></div><div class="ttdeci">static double valueIncrementCentripetal(const QPointF &, const QPointF &)</div><div class="ttdoc">Calculate the ParameterCentripetal value increment for 2 points.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00196">qwt_spline_parametrization.h:196</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_a45e45f7ac6df2fbd6ec0bd6d52837e63"><div class="ttname"><a href="class_qwt_spline_parametrization.html#a45e45f7ac6df2fbd6ec0bd6d52837e63">QwtSplineParametrization::valueIncrementX</a></div><div class="ttdeci">static double valueIncrementX(const QPointF &, const QPointF &)</div><div class="ttdoc">Calculate the ParameterX value increment for 2 points.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00134">qwt_spline_parametrization.h:134</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_a4ec70cdb3d4c1b53628ef516e93390ec"><div class="ttname"><a href="class_qwt_spline_parametrization.html#a4ec70cdb3d4c1b53628ef516e93390ec">QwtSplineParametrization::valueIncrementUniform</a></div><div class="ttdeci">static double valueIncrementUniform(const QPointF &, const QPointF &)</div><div class="ttdoc">Calculate the ParameterUniform value increment.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00162">qwt_spline_parametrization.h:162</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_aa63256420483fa4981452127366cb48d"><div class="ttname"><a href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48d">QwtSplineParametrization::Type</a></div><div class="ttdeci">Type</div><div class="ttdoc">Parametrization type.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00048">qwt_spline_parametrization.h:49</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_aa63256420483fa4981452127366cb48da30edbcab5070b1f54d7e6d2486cb7ccf"><div class="ttname"><a href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da30edbcab5070b1f54d7e6d2486cb7ccf">QwtSplineParametrization::ParameterY</a></div><div class="ttdeci">@ ParameterY</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00060">qwt_spline_parametrization.h:60</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_aa63256420483fa4981452127366cb48da3127bf721ca3be4e279f9478ea12270c"><div class="ttname"><a href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da3127bf721ca3be4e279f9478ea12270c">QwtSplineParametrization::ParameterCentripetal</a></div><div class="ttdeci">@ ParameterCentripetal</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00094">qwt_spline_parametrization.h:94</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_aa63256420483fa4981452127366cb48da3eaba94a692d4e23a0714db3288a6a24"><div class="ttname"><a href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48da3eaba94a692d4e23a0714db3288a6a24">QwtSplineParametrization::ParameterX</a></div><div class="ttdeci">@ ParameterX</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00054">qwt_spline_parametrization.h:54</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_aa63256420483fa4981452127366cb48daa34d8f54e326e8964c6131287dd3e478"><div class="ttname"><a href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48daa34d8f54e326e8964c6131287dd3e478">QwtSplineParametrization::ParameterUniform</a></div><div class="ttdeci">@ ParameterUniform</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00072">qwt_spline_parametrization.h:72</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_aa63256420483fa4981452127366cb48daf328ec1c9518bc5aaa9f648731f77ffd"><div class="ttname"><a href="class_qwt_spline_parametrization.html#aa63256420483fa4981452127366cb48daf328ec1c9518bc5aaa9f648731f77ffd">QwtSplineParametrization::ParameterChordal</a></div><div class="ttdeci">@ ParameterChordal</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00082">qwt_spline_parametrization.h:82</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_aacfc92b2d904b9644e1e0f4fc77fd7a2"><div class="ttname"><a href="class_qwt_spline_parametrization.html#aacfc92b2d904b9644e1e0f4fc77fd7a2">QwtSplineParametrization::valueIncrementManhattan</a></div><div class="ttdeci">static double valueIncrementManhattan(const QPointF &, const QPointF &)</div><div class="ttdoc">Calculate the ParameterManhattan value increment for 2 points.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00210">qwt_spline_parametrization.h:210</a></div></div>
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<div class="ttc" id="aclass_qwt_spline_parametrization_html_ab5014b377c1f5f945cd7062109728d41"><div class="ttname"><a href="class_qwt_spline_parametrization.html#ab5014b377c1f5f945cd7062109728d41">QwtSplineParametrization::valueIncrementY</a></div><div class="ttdeci">static double valueIncrementY(const QPointF &, const QPointF &)</div><div class="ttdoc">Calculate the ParameterY value increment for 2 points.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__spline__parametrization_8h_source.html#l00148">qwt_spline_parametrization.h:148</a></div></div>
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