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<div class="title">quspline.h</div>  </div>
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<a href="a00389.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/**********************************************************************</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * File:        quspline.h  (Formerly qspline.h)</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Description: Code for the QSPLINE class.</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Author:              Ray Smith</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Created:             Tue Oct 08 17:16:12 BST 1991</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * (C) Copyright 1991, Hewlett-Packard Ltd.</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> ** Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> ** you may not use this file except in compliance with the License.</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> ** You may obtain a copy of the License at</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> ** http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> ** Unless required by applicable law or agreed to in writing, software</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> ** distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> ** See the License for the specific language governing permissions and</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> ** limitations under the License.</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> **********************************************************************/</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#ifndef           QUSPLINE_H</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#define           QUSPLINE_H</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;</div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include          &quot;<a class="code" href="a00383.html">quadratc.h</a>&quot;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include          &quot;<a class="code" href="a00581.html">serialis.h</a>&quot;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include          &quot;<a class="code" href="a00545.html">memry.h</a>&quot;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include          &quot;<a class="code" href="a00401.html">rect.h</a>&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="keyword">class </span><a class="code" href="a02629.html">ROW</a>;</div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="keyword">struct </span>Pix;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;</div><div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="a02701.html">   31</a></span>&#160;<span class="keyword">class </span><a class="code" href="a02701.html">QSPLINE</a></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;{</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;  <span class="keyword">friend</span> <span class="keywordtype">void</span> <a class="code" href="a02701.html#a278b4eb02ff4e584c479bf528b2430ae">make_first_baseline</a>(<a class="code" href="a02713.html">TBOX</a> *,</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;                                  <span class="keywordtype">int</span>,</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;                                  <span class="keywordtype">int</span> *,</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;                                  <span class="keywordtype">int</span> *,</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;                                  <a class="code" href="a02701.html">QSPLINE</a> *,</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;                                  <a class="code" href="a02701.html">QSPLINE</a> *,</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;                                  <span class="keywordtype">float</span>);</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;  <span class="keyword">friend</span> <span class="keywordtype">void</span> <a class="code" href="a02701.html#abbfbb7d09880e7770be0fa99282a70c6">make_holed_baseline</a>(<a class="code" href="a02713.html">TBOX</a> *, <span class="keywordtype">int</span>, <a class="code" href="a02701.html">QSPLINE</a> *, <a class="code" href="a02701.html">QSPLINE</a> *, <span class="keywordtype">float</span>);</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;  <span class="keyword">friend</span> <span class="keywordtype">void</span> <a class="code" href="a02701.html#afc6deb99d649bb50497f4666630ecb7f">tweak_row_baseline</a>(<a class="code" href="a02629.html">ROW</a> *, <span class="keywordtype">double</span>, <span class="keywordtype">double</span>);</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;  <span class="keyword">public</span>:</div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="a02701.html#a550dbc1b50898c27be5237d72812d1c7">   43</a></span>&#160;    <a class="code" href="a02701.html#a550dbc1b50898c27be5237d72812d1c7">QSPLINE</a>() {  <span class="comment">//empty constructor</span></div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;      segments = 0;</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;      xcoords = NULL;            <span class="comment">//everything empty</span></div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;      quadratics = NULL;</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    }</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;    <a class="code" href="a02701.html#a550dbc1b50898c27be5237d72812d1c7">QSPLINE</a>(  <span class="comment">//copy constructor</span></div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;            <span class="keyword">const</span> <a class="code" href="a02701.html">QSPLINE</a> &amp;src);</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;    <a class="code" href="a02701.html#a550dbc1b50898c27be5237d72812d1c7">QSPLINE</a>(                  <span class="comment">//constructor</span></div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;            <a class="code" href="a00524.html#aba1f582fd0168f3ff9225d8c90fa9eb8">inT32</a> <a class="code" href="a01121.html#acd4ea858d7133e40518e0832ff9d94b2">count</a>,      <span class="comment">//number of segments</span></div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;            <a class="code" href="a00524.html#aba1f582fd0168f3ff9225d8c90fa9eb8">inT32</a> *xstarts,   <span class="comment">//segment starts</span></div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;            <span class="keywordtype">double</span> *coeffs);  <span class="comment">//coefficients</span></div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;    <a class="code" href="a02701.html#a7619e90d02d5127754c93073378a738a">~QSPLINE</a> ();                 <span class="comment">//destructor</span></div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    <a class="code" href="a02701.html#a550dbc1b50898c27be5237d72812d1c7">QSPLINE</a> (                    <span class="comment">//least squares fit</span></div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;      <span class="keywordtype">int</span> xstarts[],             <span class="comment">//spline boundaries</span></div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;      <span class="keywordtype">int</span> segcount,              <span class="comment">//no of segments</span></div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;      <span class="keywordtype">int</span> xcoords[],             <span class="comment">//points to fit</span></div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;      <span class="keywordtype">int</span> ycoords[], <span class="keywordtype">int</span> blobcount,<span class="comment">//no of coords</span></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;      <span class="keywordtype">int</span> degree);               <span class="comment">//function</span></div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keywordtype">double</span> <a class="code" href="a02701.html#aaebd602e34d8b7f4e7b73884f1701a75">step</a>(            <span class="comment">//step change</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                <span class="keywordtype">double</span> x1,  <span class="comment">//between coords</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                <span class="keywordtype">double</span> x2);</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;    <span class="keywordtype">double</span> <a class="code" href="a02701.html#a6d9a420087cfe7fa3349cabb048de02f">y</a>(                  <span class="comment">//evaluate</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;             <span class="keywordtype">double</span> x) <span class="keyword">const</span>;  <span class="comment">//at x</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    <span class="keywordtype">void</span> <a class="code" href="a02701.html#a3d1808becf8a69d00747b444d9c76cf6">move</a>(              <span class="comment">// reposition spline</span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;              <a class="code" href="a02673.html">ICOORD</a> vec);  <span class="comment">// by vector</span></div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <a class="code" href="a00524.html#a7712a7e28433d0ade59219a129549b6f">BOOL8</a> <a class="code" href="a02701.html#af5a1e056b6b5c0348b640b5eaa987184">overlap</a>(                   <span class="comment">//test overlap</span></div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                  <a class="code" href="a02701.html">QSPLINE</a> *spline2,  <span class="comment">//2 cannot be smaller</span></div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;                  <span class="keywordtype">double</span> fraction);  <span class="comment">//by more than this</span></div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordtype">void</span> <a class="code" href="a02701.html#a2459d3e247a16f9f01d6b77597193812">extrapolate</a>(                  <span class="comment">//linear extrapolation</span></div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;                     <span class="keywordtype">double</span> gradient,  <span class="comment">//gradient to use</span></div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;                     <span class="keywordtype">int</span> left,         <span class="comment">//new left edge</span></div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;                     <span class="keywordtype">int</span> right);       <span class="comment">//new right edge</span></div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;<span class="preprocessor">#ifndef GRAPHICS_DISABLED</span></div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    <span class="keywordtype">void</span> <a class="code" href="a02701.html#a76779877e010949e0055ed273801619d">plot</a>(                       <span class="comment">//draw it</span></div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;              <a class="code" href="a04929.html">ScrollView</a>* window,         <span class="comment">//in window</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;              <a class="code" href="a04929.html#a100504544a5423a94222149ee9ed0fe8">ScrollView::Color</a> colour) <span class="keyword">const</span>;  <span class="comment">//in colour</span></div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;    <span class="comment">// Paint the baseline over pix. If pix has depth of 32, then the line will</span></div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;    <span class="comment">// be painted in red. Otherwise it will be painted in black.</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;    <span class="keywordtype">void</span> <a class="code" href="a02701.html#a76779877e010949e0055ed273801619d">plot</a>(Pix* pix) <span class="keyword">const</span>;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <a class="code" href="a02701.html">QSPLINE</a> &amp; <a class="code" href="a02701.html#a947d537ad3fd5ef782bc81055b291dcf">operator= </a>(</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;      <span class="keyword">const</span> <a class="code" href="a02701.html">QSPLINE</a> &amp; source);   <span class="comment">//from this</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;  <span class="keyword">private</span>:</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    <a class="code" href="a00524.html#aba1f582fd0168f3ff9225d8c90fa9eb8">inT32</a> spline_index(                  <span class="comment">//binary search</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;                       <span class="keywordtype">double</span> x) <span class="keyword">const</span>;  <span class="comment">//for x</span></div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <a class="code" href="a00524.html#aba1f582fd0168f3ff9225d8c90fa9eb8">inT32</a> segments;              <span class="comment">//no of segments</span></div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <a class="code" href="a00524.html#aba1f582fd0168f3ff9225d8c90fa9eb8">inT32</a> *xcoords;              <span class="comment">//no of coords</span></div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;    <a class="code" href="a02697.html">QUAD_COEFFS</a> *quadratics;     <span class="comment">//spline pieces</span></div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;};</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="a02701_html_a2459d3e247a16f9f01d6b77597193812"><div class="ttname"><a href="a02701.html#a2459d3e247a16f9f01d6b77597193812">QSPLINE::extrapolate</a></div><div class="ttdeci">void extrapolate(double gradient, int left, int right)</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00306">quspline.cpp:306</a></div></div>
<div class="ttc" id="a01121_html_acd4ea858d7133e40518e0832ff9d94b2"><div class="ttname"><a href="a01121.html#acd4ea858d7133e40518e0832ff9d94b2">count</a></div><div class="ttdeci">int count(LIST var_list)</div><div class="ttdef"><b>Definition:</b> <a href="a01121_source.html#l00103">oldlist.cpp:103</a></div></div>
<div class="ttc" id="a02697_html"><div class="ttname"><a href="a02697.html">QUAD_COEFFS</a></div><div class="ttdef"><b>Definition:</b> <a href="a00383_source.html#l00025">quadratc.h:25</a></div></div>
<div class="ttc" id="a02673_html"><div class="ttname"><a href="a02673.html">ICOORD</a></div><div class="ttdoc">integer coordinate </div><div class="ttdef"><b>Definition:</b> <a href="a00356_source.html#l00030">points.h:30</a></div></div>
<div class="ttc" id="a00401_html"><div class="ttname"><a href="a00401.html">rect.h</a></div></div>
<div class="ttc" id="a02701_html_a76779877e010949e0055ed273801619d"><div class="ttname"><a href="a02701.html#a76779877e010949e0055ed273801619d">QSPLINE::plot</a></div><div class="ttdeci">void plot(ScrollView *window, ScrollView::Color colour) const</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00363">quspline.cpp:363</a></div></div>
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<div class="ttc" id="a02701_html"><div class="ttname"><a href="a02701.html">QSPLINE</a></div><div class="ttdef"><b>Definition:</b> <a href="a00389_source.html#l00031">quspline.h:31</a></div></div>
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<div class="ttc" id="a02701_html_a7619e90d02d5127754c93073378a738a"><div class="ttname"><a href="a02701.html#a7619e90d02d5127754c93073378a738a">QSPLINE::~QSPLINE</a></div><div class="ttdeci">~QSPLINE()</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00151">quspline.cpp:151</a></div></div>
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<div class="ttc" id="a02701_html_a550dbc1b50898c27be5237d72812d1c7"><div class="ttname"><a href="a02701.html#a550dbc1b50898c27be5237d72812d1c7">QSPLINE::QSPLINE</a></div><div class="ttdeci">QSPLINE()</div><div class="ttdef"><b>Definition:</b> <a href="a00389_source.html#l00043">quspline.h:43</a></div></div>
<div class="ttc" id="a02701_html_a947d537ad3fd5ef782bc81055b291dcf"><div class="ttname"><a href="a02701.html#a947d537ad3fd5ef782bc81055b291dcf">QSPLINE::operator=</a></div><div class="ttdeci">QSPLINE &amp; operator=(const QSPLINE &amp;source)</div><div class="ttdef"><b>Definition:</b> <a href="a00386_source.html#l00170">quspline.cpp:170</a></div></div>
<div class="ttc" id="a04929_html"><div class="ttname"><a href="a04929.html">ScrollView</a></div><div class="ttdef"><b>Definition:</b> <a href="a01610_source.html#l00102">scrollview.h:102</a></div></div>
<div class="ttc" id="a00524_html_aba1f582fd0168f3ff9225d8c90fa9eb8"><div class="ttname"><a href="a00524.html#aba1f582fd0168f3ff9225d8c90fa9eb8">inT32</a></div><div class="ttdeci">int inT32</div><div class="ttdef"><b>Definition:</b> <a href="a00524_source.html#l00035">host.h:35</a></div></div>
<div class="ttc" id="a02701_html_abbfbb7d09880e7770be0fa99282a70c6"><div class="ttname"><a href="a02701.html#abbfbb7d09880e7770be0fa99282a70c6">QSPLINE::make_holed_baseline</a></div><div class="ttdeci">friend void make_holed_baseline(TBOX *, int, QSPLINE *, QSPLINE *, float)</div></div>
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<div class="ttc" id="a02701_html_a278b4eb02ff4e584c479bf528b2430ae"><div class="ttname"><a href="a02701.html#a278b4eb02ff4e584c479bf528b2430ae">QSPLINE::make_first_baseline</a></div><div class="ttdeci">friend void make_first_baseline(TBOX *, int, int *, int *, QSPLINE *, QSPLINE *, float)</div></div>
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<div class="ttc" id="a02713_html"><div class="ttname"><a href="a02713.html">TBOX</a></div><div class="ttdef"><b>Definition:</b> <a href="a00401_source.html#l00030">rect.h:30</a></div></div>
<div class="ttc" id="a02701_html_afc6deb99d649bb50497f4666630ecb7f"><div class="ttname"><a href="a02701.html#afc6deb99d649bb50497f4666630ecb7f">QSPLINE::tweak_row_baseline</a></div><div class="ttdeci">friend void tweak_row_baseline(ROW *, double, double)</div><div class="ttdef"><b>Definition:</b> <a href="a01457_source.html#l00885">tordmain.cpp:885</a></div></div>
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