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 <span id="projectnumber">6.2.0</span>
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<div class="title">qwt_scale_map.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_SCALE_MAP_H</span></div>
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<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="preprocessor">#define QWT_SCALE_MAP_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_transform.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="keyword">class </span>QPointF;</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">class </span>QRectF;</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  </div>
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<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html"> 26</a></span> <span class="keyword">class </span>QWT_EXPORT <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a></div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> {</div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>();</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>& );</div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  </div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  ~<a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>();</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  </div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>& operator=( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>& );</div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  </div>
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<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">void</span> setTransformation( <a class="code" href="class_qwt_transform.html">QwtTransform</a>* );</div>
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<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">const</span> <a class="code" href="class_qwt_transform.html">QwtTransform</a>* transformation() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  </div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">void</span> setPaintInterval( <span class="keywordtype">double</span> p1, <span class="keywordtype">double</span> p2 );</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordtype">void</span> setScaleInterval( <span class="keywordtype">double</span> s1, <span class="keywordtype">double</span> s2 );</div>
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<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  </div>
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<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordtype">double</span> transform( <span class="keywordtype">double</span> s ) <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordtype">double</span> invTransform( <span class="keywordtype">double</span> p ) <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  </div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">double</span> p1() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">double</span> p2() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  </div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">double</span> s1() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">double</span> s2() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  </div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">double</span> pDist() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">double</span> sDist() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  </div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">static</span> QRectF transform( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&,</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&, <span class="keyword">const</span> QRectF& );</div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  </div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keyword">static</span> QRectF invTransform( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&,</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&, <span class="keyword">const</span> QRectF& );</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">static</span> QPointF transform( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&,</div>
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<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
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<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keyword">static</span> QPointF invTransform( <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&,</div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>&, <span class="keyword">const</span> QPointF& );</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  </div>
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<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">bool</span> isInverting() <span class="keyword">const</span>;</div>
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<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  </div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">private</span>:</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">void</span> updateFactor();</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">double</span> m_s1, m_s2; <span class="comment">// scale interval boundaries</span></div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">double</span> m_p1, m_p2; <span class="comment">// paint device interval boundaries</span></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="l00074"></a><span class="lineno"> 74</span>  <span class="keywordtype">double</span> m_cnv; <span class="comment">// conversion factor</span></div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordtype">double</span> m_ts1;</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  </div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <a class="code" href="class_qwt_transform.html">QwtTransform</a>* m_transform;</div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> };</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
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<div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#a64b15c76aa63a521447215018c75bf37"> 83</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#a64b15c76aa63a521447215018c75bf37">QwtScaleMap::s1</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> m_s1;</div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> }</div>
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<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  </div>
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<div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#a7c8c969923c15880c4620be1d814ef18"> 91</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#a7c8c969923c15880c4620be1d814ef18">QwtScaleMap::s2</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  <span class="keywordflow">return</span> m_s2;</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> }</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="l00099"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#a4d03a9fea3bd9b66a0b882b8b1a58f4b"> 99</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#a4d03a9fea3bd9b66a0b882b8b1a58f4b">QwtScaleMap::p1</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> m_p1;</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  </div>
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<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#acd78b70fae83854a148fa3d08b13c261"> 107</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#acd78b70fae83854a148fa3d08b13c261">QwtScaleMap::p2</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="keywordflow">return</span> m_p2;</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>  </div>
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<div class="line"><a name="l00115"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#a456d76a849af8c465692c0481bdd12ad"> 115</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#a456d76a849af8c465692c0481bdd12ad">QwtScaleMap::pDist</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keywordflow">return</span> qAbs( m_p2 - m_p1 );</div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> }</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  </div>
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<div class="line"><a name="l00123"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0"> 123</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0">QwtScaleMap::sDist</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">return</span> qAbs( m_s2 - m_s1 );</div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  </div>
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<div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865"> 137</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a>( <span class="keywordtype">double</span> s )<span class="keyword"> const</span></div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">if</span> ( m_transform )</div>
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<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  s = m_transform-><a class="code" href="class_qwt_transform.html#a1093b5856cbc6cf812460535442fb130">transform</a>( s );</div>
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<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  </div>
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<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keywordflow">return</span> m_p1 + ( s - m_ts1 ) * m_cnv;</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> }</div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  </div>
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<div class="line"><a name="l00154"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642"> 154</a></span> <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">QwtScaleMap::invTransform</a>( <span class="keywordtype">double</span> p )<span class="keyword"> const</span></div>
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<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <span class="keywordtype">double</span> s = m_ts1 + ( p - m_p1 ) / m_cnv;</div>
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<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keywordflow">if</span> ( m_transform )</div>
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<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  s = m_transform-><a class="code" href="class_qwt_transform.html#a5cfb0a329b8418028baf6974b188d76b">invTransform</a>( s );</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  </div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordflow">return</span> s;</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span> }</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  </div>
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<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c"> 164</a></span> <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">QwtScaleMap::isInverting</a>()<span class="keyword"> const</span></div>
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<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keyword"></span>{</div>
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<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">return</span> ( ( m_p1 < m_p2 ) != ( m_s1 < m_s2 ) );</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>  </div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> <span class="preprocessor">#ifndef QT_NO_DEBUG_STREAM</span></div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> QWT_EXPORT QDebug operator<<( QDebug, <span class="keyword">const</span> <a class="code" href="class_qwt_scale_map.html">QwtScaleMap</a>& );</div>
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<div class="line"><a name="l00171"></a><span class="lineno"> 171</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  </div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <span class="preprocessor">#endif</span></div>
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<div class="ttc" id="aclass_qwt_scale_map_html"><div class="ttname"><a href="class_qwt_scale_map.html">QwtScaleMap</a></div><div class="ttdoc">A scale map.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00026">qwt_scale_map.h:27</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_a283100be40b08db7df078b8a0ee1d19c"><div class="ttname"><a href="class_qwt_scale_map.html#a283100be40b08db7df078b8a0ee1d19c">QwtScaleMap::isInverting</a></div><div class="ttdeci">bool isInverting() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00164">qwt_scale_map.h:164</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_a456d76a849af8c465692c0481bdd12ad"><div class="ttname"><a href="class_qwt_scale_map.html#a456d76a849af8c465692c0481bdd12ad">QwtScaleMap::pDist</a></div><div class="ttdeci">double pDist() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00115">qwt_scale_map.h:115</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_a4d03a9fea3bd9b66a0b882b8b1a58f4b"><div class="ttname"><a href="class_qwt_scale_map.html#a4d03a9fea3bd9b66a0b882b8b1a58f4b">QwtScaleMap::p1</a></div><div class="ttdeci">double p1() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00099">qwt_scale_map.h:99</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_a504f1627e0e02ddac03d2ce46507b865"><div class="ttname"><a href="class_qwt_scale_map.html#a504f1627e0e02ddac03d2ce46507b865">QwtScaleMap::transform</a></div><div class="ttdeci">double transform(double s) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00137">qwt_scale_map.h:137</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_a64b15c76aa63a521447215018c75bf37"><div class="ttname"><a href="class_qwt_scale_map.html#a64b15c76aa63a521447215018c75bf37">QwtScaleMap::s1</a></div><div class="ttdeci">double s1() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00083">qwt_scale_map.h:83</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_a7c8c969923c15880c4620be1d814ef18"><div class="ttname"><a href="class_qwt_scale_map.html#a7c8c969923c15880c4620be1d814ef18">QwtScaleMap::s2</a></div><div class="ttdeci">double s2() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00091">qwt_scale_map.h:91</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_a953eb3e6584d8a6ca4d5fff98a9a0aa0"><div class="ttname"><a href="class_qwt_scale_map.html#a953eb3e6584d8a6ca4d5fff98a9a0aa0">QwtScaleMap::sDist</a></div><div class="ttdeci">double sDist() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00123">qwt_scale_map.h:123</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_ab1ee6d62addf3f9cf091d425be9ac642"><div class="ttname"><a href="class_qwt_scale_map.html#ab1ee6d62addf3f9cf091d425be9ac642">QwtScaleMap::invTransform</a></div><div class="ttdeci">double invTransform(double p) const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00154">qwt_scale_map.h:154</a></div></div>
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<div class="ttc" id="aclass_qwt_scale_map_html_acd78b70fae83854a148fa3d08b13c261"><div class="ttname"><a href="class_qwt_scale_map.html#acd78b70fae83854a148fa3d08b13c261">QwtScaleMap::p2</a></div><div class="ttdeci">double p2() const</div><div class="ttdef"><b>Definition:</b> <a href="qwt__scale__map_8h_source.html#l00107">qwt_scale_map.h:107</a></div></div>
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<div class="ttc" id="aclass_qwt_transform_html"><div class="ttname"><a href="class_qwt_transform.html">QwtTransform</a></div><div class="ttdoc">A transformation between coordinate systems.</div><div class="ttdef"><b>Definition:</b> <a href="qwt__transform_8h_source.html#l00035">qwt_transform.h:36</a></div></div>
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<div class="ttc" id="aclass_qwt_transform_html_a1093b5856cbc6cf812460535442fb130"><div class="ttname"><a href="class_qwt_transform.html#a1093b5856cbc6cf812460535442fb130">QwtTransform::transform</a></div><div class="ttdeci">virtual double transform(double value) const =0</div></div>
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<div class="ttc" id="aclass_qwt_transform_html_a5cfb0a329b8418028baf6974b188d76b"><div class="ttname"><a href="class_qwt_transform.html#a5cfb0a329b8418028baf6974b188d76b">QwtTransform::invTransform</a></div><div class="ttdeci">virtual double invTransform(double value) const =0</div></div>
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