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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">//</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// Author: Joshua Cohen, Bryan Riel, Liang Yu</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright 2017-2018</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> </div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="preprocessor">#include "forward.h"</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="preprocessor">#include <valarray></span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "Constants.h"</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "EMatrix.h"</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "Matrix.h"</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="keyword">template</span><<span class="keyword">typename</span> U></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="keyword">class </span><a class="code" href="classisce3_1_1core_1_1Interpolator.html">isce3::core::Interpolator</a> {</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keyword">using</span> Map = <span class="keyword">typename</span> Eigen::Map<const EArray2D<U>>;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="comment">// Public interface</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00026"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1Interpolator.html#af4b4abcff2b445ac3a38100627f0d38f"> 26</a></span>  <span class="keyword">virtual</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#af4b4abcff2b445ac3a38100627f0d38f">~Interpolator</a>() {}</div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">virtual</span> U <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a9b14d733315aed0355de93aedaac0e85">interp_impl</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> Map& map) <span class="keyword">const</span> = 0;</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78"> 35</a></span>  U <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78">interpolate</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> Map& map)<span class="keyword"> const</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword"> </span>{</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">return</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a9b14d733315aed0355de93aedaac0e85">interp_impl</a>(x, y, map);</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> </div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1Interpolator.html#a91ce92ae4beea36fa3ea3a82c62e1e7e"> 41</a></span>  U <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a91ce92ae4beea36fa3ea3a82c62e1e7e">interpolate</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> <a class="code" href="classisce3_1_1core_1_1Matrix.html">Matrix<U></a>& z)<span class="keyword"> const</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword"> </span>{</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keywordflow">return</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a9b14d733315aed0355de93aedaac0e85">interp_impl</a>(x, y, z.map());</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> </div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1Interpolator.html#a5c0fa6e3910ff30be3ca8672e229bb26"> 47</a></span>  U <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a5c0fa6e3910ff30be3ca8672e229bb26">interpolate</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, std::valarray<U>& z_data,</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">size_t</span> width)<span class="keyword"> const</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="keyword"> </span>{</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keyword">const</span> Map z {&z_data[0],</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">static_cast<</span>Eigen::Index<span class="keyword">></span>(z_data.size() / width),</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  static_cast<Eigen::Index>(width)};</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a9b14d733315aed0355de93aedaac0e85">interp_impl</a>(x, y, z);</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1Interpolator.html#a976d469eecb5e6cb99e3fe2eb7ea899e"> 57</a></span>  U <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a976d469eecb5e6cb99e3fe2eb7ea899e">interpolate</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, std::vector<U>& z_data,</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">size_t</span> width)<span class="keyword"> const</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword"> </span>{</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">const</span> Map z {&z_data[0],</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keyword">static_cast<</span>Eigen::Index<span class="keyword">></span>(z_data.size() / width),</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  static_cast<Eigen::Index>(width)};</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordflow">return</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a9b14d733315aed0355de93aedaac0e85">interp_impl</a>(x, y, z);</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  }</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1Interpolator.html#a7545b4ff05255732d178cab260c05926"> 67</a></span>  <a class="code" href="namespaceisce3_1_1core.html#a22d6f9cff6792e3f542529600d50ebce">dataInterpMethod</a> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a7545b4ff05255732d178cab260c05926">method</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _method; }</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>  <span class="comment">// Protected constructor and data to be used by derived classes</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">inline</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html">Interpolator</a>(<a class="code" href="namespaceisce3_1_1core.html#a22d6f9cff6792e3f542529600d50ebce">dataInterpMethod</a> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a7545b4ff05255732d178cab260c05926">method</a>) : _method {method} {}</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <a class="code" href="namespaceisce3_1_1core.html#a22d6f9cff6792e3f542529600d50ebce">dataInterpMethod</a> _method;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> };</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">template</span><<span class="keyword">typename</span> U></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">class </span><a class="code" href="classisce3_1_1core_1_1BilinearInterpolator.html">isce3::core::BilinearInterpolator</a> : <span class="keyword">public</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html">isce3::core::Interpolator</a><U> {</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">using</span> super_t = Interpolator<U>;</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">using</span> <span class="keyword">typename</span> super_t::Map;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  U interp_impl(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> Map& z) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1BilinearInterpolator.html#aa0f68220f0f0c3c08b0b639cf14cf4fc"> 87</a></span>  <a class="code" href="classisce3_1_1core_1_1BilinearInterpolator.html#aa0f68220f0f0c3c08b0b639cf14cf4fc">BilinearInterpolator</a>() : <a class="code" href="classisce3_1_1core_1_1Interpolator.html">super_t</a> {BILINEAR_METHOD} {}</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// Inherit overloads for other datatypes</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">using</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78">super_t::interpolate</a>;</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"> 94</span> <span class="keyword">template</span><<span class="keyword">typename</span> U></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="keyword">class </span><a class="code" href="classisce3_1_1core_1_1BicubicInterpolator.html">isce3::core::BicubicInterpolator</a> : <span class="keyword">public</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html">isce3::core::Interpolator</a><U> {</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">using</span> super_t = Interpolator<U>;</div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keyword">using</span> <span class="keyword">typename</span> super_t::Map;</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  U interp_impl(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> Map& z) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1BicubicInterpolator.html#a143294137076fcc63732f8a0b49a5930"> 105</a></span>  <a class="code" href="classisce3_1_1core_1_1BicubicInterpolator.html#a143294137076fcc63732f8a0b49a5930">BicubicInterpolator</a>() : <a class="code" href="classisce3_1_1core_1_1Interpolator.html">super_t</a> {BICUBIC_METHOD} {}</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// Inherit overloads for other datatypes</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keyword">using</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78">super_t::interpolate</a>;</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"> 112</span> <span class="keyword">template</span><<span class="keyword">typename</span> U></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword">class </span><a class="code" href="classisce3_1_1core_1_1NearestNeighborInterpolator.html">isce3::core::NearestNeighborInterpolator</a> :</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="keyword">public</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html">isce3::core::Interpolator</a><U> {</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>  <span class="keyword">using</span> super_t = Interpolator<U>;</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">using</span> <span class="keyword">typename</span> super_t::Map;</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> </div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  U interp_impl(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> Map& z) <span class="keyword">const override</span>;</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> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00124"></a><span class="lineno"><a class="line" href="classisce3_1_1core_1_1NearestNeighborInterpolator.html#a13ca2b3838bc21756e5b1a81ce0a2f12"> 124</a></span>  <a class="code" href="classisce3_1_1core_1_1NearestNeighborInterpolator.html#a13ca2b3838bc21756e5b1a81ce0a2f12">NearestNeighborInterpolator</a>() : <a class="code" href="classisce3_1_1core_1_1Interpolator.html">super_t</a> {NEAREST_METHOD} {}</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="comment">// Inherit overloads for other datatypes</span></div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">using</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78">super_t::interpolate</a>;</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span> };</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span> <span class="keyword">template</span><<span class="keyword">typename</span> U></div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span> <span class="keyword">class </span><a class="code" href="classisce3_1_1core_1_1Spline2dInterpolator.html">isce3::core::Spline2dInterpolator</a> : <span class="keyword">public</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html">isce3::core::Interpolator</a><U> {</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>  <span class="keyword">using</span> super_t = Interpolator<U>;</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keyword">using</span> <span class="keyword">typename</span> super_t::Map;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a class="code" href="classisce3_1_1core_1_1Spline2dInterpolator.html#a6a6a305b74506b469e2074775bc1dd29">Spline2dInterpolator</a>(<span class="keywordtype">size_t</span> order);</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  U <a class="code" href="classisce3_1_1core_1_1Spline2dInterpolator.html#a4326e42f710faa03176ba4703da4a484">interp_impl</a>(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> Map& z) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// Inherit overloads for other datatypes</span></div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">using</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78">super_t::interpolate</a>;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// Data members</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">size_t</span> _order;</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="comment">// Utility spline functions</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">void</span> _initSpline(<span class="keyword">const</span> std::valarray<U>&, <span class="keywordtype">int</span>, std::valarray<U>&,</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  std::valarray<U>&) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  U _spline(<span class="keywordtype">double</span>, <span class="keyword">const</span> std::valarray<U>&, <span class="keywordtype">int</span>,</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">const</span> std::valarray<U>&) <span class="keyword">const</span>;</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="l00161"></a><span class="lineno"> 161</span> <span class="keyword">template</span><<span class="keyword">typename</span> U></div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">class </span><a class="code" href="classisce3_1_1core_1_1Sinc2dInterpolator.html">isce3::core::Sinc2dInterpolator</a> : <span class="keyword">public</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html">isce3::core::Interpolator</a><U> {</div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keyword">using</span> super_t = Interpolator<U>;</div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">using</span> <span class="keyword">typename</span> super_t::Map;</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> </div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  U interp_impl(<span class="keywordtype">double</span> x, <span class="keywordtype">double</span> y, <span class="keyword">const</span> Map& z) <span class="keyword">const override</span>;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a class="code" href="classisce3_1_1core_1_1Sinc2dInterpolator.html#a5ff620fa3307b79044daf44edff31d7a">Sinc2dInterpolator</a>(<span class="keywordtype">int</span> sincLen, <span class="keywordtype">int</span> sincSub);</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>  <span class="comment">// Inherit overloads for other datatypes</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="keyword">using</span> <a class="code" href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78">super_t::interpolate</a>;</div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> </div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="comment">// Compute sinc coefficients</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="keywordtype">void</span> _sinc_coef(<span class="keywordtype">double</span> beta, <span class="keywordtype">double</span> relfiltlen, <span class="keywordtype">int</span> decfactor,</div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">double</span> pedestal, <span class="keywordtype">int</span> weight,</div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  std::valarray<double>& filter) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// Evaluate sinc</span></div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  U _sinc_eval_2d(<span class="keyword">const</span> Map& z, <span class="keywordtype">int</span> intpx, <span class="keywordtype">int</span> intpy, <span class="keywordtype">double</span> frpx,</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="keywordtype">double</span> frpy) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span> <span class="keyword">private</span>:</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  Matrix<double> _kernel;</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordtype">int</span> _kernelLength, _kernelWidth, _sincHalf;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span> };</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="comment">// Extra interpolation and utility functions</span></div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <span class="keyword">namespace </span>isce3 { <span class="keyword">namespace </span>core {</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span> <span class="keyword">template</span><<span class="keyword">typename</span> U></div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span> <span class="keyword">inline</span> Interpolator<U>*</div>
<div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="namespaceisce3_1_1core.html#ae9fc3ae9a07c6bab9235b81223235b00"> 199</a></span> <a class="code" href="namespaceisce3_1_1core.html#ae9fc3ae9a07c6bab9235b81223235b00">createInterpolator</a>(<a class="code" href="namespaceisce3_1_1core.html#a22d6f9cff6792e3f542529600d50ebce">dataInterpMethod</a> method, <span class="keywordtype">size_t</span> order = 6,</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="keywordtype">int</span> sincLen = SINC_LEN, <span class="keywordtype">int</span> sincSub = SINC_SUB)</div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span> {</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  <span class="keywordflow">if</span> (method == BILINEAR_METHOD) {</div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classisce3_1_1core_1_1BilinearInterpolator.html">BilinearInterpolator<U></a>();</div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (method == BICUBIC_METHOD) {</div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classisce3_1_1core_1_1BicubicInterpolator.html">BicubicInterpolator<U></a>();</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (method == BIQUINTIC_METHOD) {</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classisce3_1_1core_1_1Spline2dInterpolator.html">Spline2dInterpolator<U></a>(order);</div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (method == NEAREST_METHOD) {</div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classisce3_1_1core_1_1NearestNeighborInterpolator.html">NearestNeighborInterpolator<U></a>();</div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (method == SINC_METHOD) {</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classisce3_1_1core_1_1Sinc2dInterpolator.html">Sinc2dInterpolator<U></a>(sincLen, sincSub);</div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classisce3_1_1core_1_1BilinearInterpolator.html">BilinearInterpolator<U></a>();</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  }</div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span> }</div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="comment">// Sinc evaluation in 1D</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">template</span><<span class="keyword">class</span> U, <span class="keyword">class</span> V></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> U <a class="code" href="namespaceisce3_1_1core.html#a775aaa5208bd78a9dbce3affabb0e050">sinc_eval</a>(<span class="keyword">const</span> Matrix<U>&, <span class="keyword">const</span> Matrix<V>&, <span class="keywordtype">int</span>, <span class="keywordtype">int</span>, <span class="keywordtype">double</span>, <span class="keywordtype">int</span>);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> }} <span class="comment">// namespace isce3::core</span></div>
<div class="ttc" id="namespaceisce3_1_1core_html_a22d6f9cff6792e3f542529600d50ebce"><div class="ttname"><a href="namespaceisce3_1_1core.html#a22d6f9cff6792e3f542529600d50ebce">isce3::core::dataInterpMethod</a></div><div class="ttdeci">dataInterpMethod</div><div class="ttdoc">Enumeration type to indicate interpolation method. </div><div class="ttdef"><b>Definition:</b> Constants.h:23</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html_a9b14d733315aed0355de93aedaac0e85"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html#a9b14d733315aed0355de93aedaac0e85">isce3::core::Interpolator::interp_impl</a></div><div class="ttdeci">virtual U interp_impl(double x, double y, const Map &map) const =0</div><div class="ttdoc">Base implementation for all types. </div></div>
<div class="ttc" id="classisce3_1_1core_1_1BicubicInterpolator_html"><div class="ttname"><a href="classisce3_1_1core_1_1BicubicInterpolator.html">isce3::core::BicubicInterpolator</a></div><div class="ttdoc">Definition of BicubicInterpolator. </div><div class="ttdef"><b>Definition:</b> forward.h:35</div></div>
<div class="ttc" id="namespaceisce3_1_1core_html_a775aaa5208bd78a9dbce3affabb0e050"><div class="ttname"><a href="namespaceisce3_1_1core.html#a775aaa5208bd78a9dbce3affabb0e050">isce3::core::sinc_eval</a></div><div class="ttdeci">U sinc_eval(const Matrix< U > &, const Matrix< V > &, int, int, double, int)</div><div class="ttdoc">1-D sinc evaluation </div><div class="ttdef"><b>Definition:</b> Interpolator.cpp:11</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html_af4b4abcff2b445ac3a38100627f0d38f"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html#af4b4abcff2b445ac3a38100627f0d38f">isce3::core::Interpolator::~Interpolator</a></div><div class="ttdeci">virtual ~Interpolator()</div><div class="ttdoc">Virtual destructor (allow destruction of base Interpolator pointer) </div><div class="ttdef"><b>Definition:</b> Interpolator.h:26</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html_a91ce92ae4beea36fa3ea3a82c62e1e7e"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html#a91ce92ae4beea36fa3ea3a82c62e1e7e">isce3::core::Interpolator::interpolate</a></div><div class="ttdeci">U interpolate(double x, double y, const Matrix< U > &z) const </div><div class="ttdoc">Interpolate at a given coordinate for an input isce3::core::Matrix. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:41</div></div>
<div class="ttc" id="namespaceisce3_1_1core_html_ae9fc3ae9a07c6bab9235b81223235b00"><div class="ttname"><a href="namespaceisce3_1_1core.html#ae9fc3ae9a07c6bab9235b81223235b00">isce3::core::createInterpolator</a></div><div class="ttdeci">Interpolator< U > * createInterpolator(dataInterpMethod method, size_t order=6, int sincLen=SINC_LEN, int sincSub=SINC_SUB)</div><div class="ttdoc">Utility function to create interpolator pointer given an interpolator enum type. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:199</div></div>
<div class="ttc" id="classisce3_1_1core_1_1NearestNeighborInterpolator_html_a13ca2b3838bc21756e5b1a81ce0a2f12"><div class="ttname"><a href="classisce3_1_1core_1_1NearestNeighborInterpolator.html#a13ca2b3838bc21756e5b1a81ce0a2f12">isce3::core::NearestNeighborInterpolator::NearestNeighborInterpolator</a></div><div class="ttdeci">NearestNeighborInterpolator()</div><div class="ttdoc">Default constructor. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:124</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html_a5c0fa6e3910ff30be3ca8672e229bb26"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html#a5c0fa6e3910ff30be3ca8672e229bb26">isce3::core::Interpolator::interpolate</a></div><div class="ttdeci">U interpolate(double x, double y, std::valarray< U > &z_data, size_t width) const </div><div class="ttdoc">Interpolate at a given coordinate for data passed as a valarray. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:47</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Sinc2dInterpolator_html_a5ff620fa3307b79044daf44edff31d7a"><div class="ttname"><a href="classisce3_1_1core_1_1Sinc2dInterpolator.html#a5ff620fa3307b79044daf44edff31d7a">isce3::core::Sinc2dInterpolator::Sinc2dInterpolator</a></div><div class="ttdeci">Sinc2dInterpolator(int sincLen, int sincSub)</div><div class="ttdoc">Default constructor. </div><div class="ttdef"><b>Definition:</b> Sinc2dInterpolator.cpp:14</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Spline2dInterpolator_html_a4326e42f710faa03176ba4703da4a484"><div class="ttname"><a href="classisce3_1_1core_1_1Spline2dInterpolator.html#a4326e42f710faa03176ba4703da4a484">isce3::core::Spline2dInterpolator::interp_impl</a></div><div class="ttdeci">U interp_impl(double x, double y, const Map &z) const override</div><div class="ttdoc">Interpolate at a given coordinate. </div><div class="ttdef"><b>Definition:</b> Spline2dInterpolator.cpp:33</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Matrix_html"><div class="ttname"><a href="classisce3_1_1core_1_1Matrix.html">isce3::core::Matrix</a></div><div class="ttdoc">Data structure for a 2D row-major matrix. </div><div class="ttdef"><b>Definition:</b> forward.h:31</div></div>
<div class="ttc" id="classisce3_1_1core_1_1BicubicInterpolator_html_a143294137076fcc63732f8a0b49a5930"><div class="ttname"><a href="classisce3_1_1core_1_1BicubicInterpolator.html#a143294137076fcc63732f8a0b49a5930">isce3::core::BicubicInterpolator::BicubicInterpolator</a></div><div class="ttdeci">BicubicInterpolator()</div><div class="ttdoc">Default constructor. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:105</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Spline2dInterpolator_html_a6a6a305b74506b469e2074775bc1dd29"><div class="ttname"><a href="classisce3_1_1core_1_1Spline2dInterpolator.html#a6a6a305b74506b469e2074775bc1dd29">isce3::core::Spline2dInterpolator::Spline2dInterpolator</a></div><div class="ttdeci">Spline2dInterpolator(size_t order)</div><div class="ttdoc">Default constructor. </div><div class="ttdef"><b>Definition:</b> Spline2dInterpolator.cpp:12</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html_a594df0883c27168070e2bbf5b955df78"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html#a594df0883c27168070e2bbf5b955df78">isce3::core::Interpolator::interpolate</a></div><div class="ttdeci">U interpolate(double x, double y, const Map &map) const </div><div class="ttdoc">Interpolate at a given coordinate for an input Eigen::Map. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:35</div></div>
<div class="ttc" id="classisce3_1_1core_1_1BilinearInterpolator_html_aa0f68220f0f0c3c08b0b639cf14cf4fc"><div class="ttname"><a href="classisce3_1_1core_1_1BilinearInterpolator.html#aa0f68220f0f0c3c08b0b639cf14cf4fc">isce3::core::BilinearInterpolator::BilinearInterpolator</a></div><div class="ttdeci">BilinearInterpolator()</div><div class="ttdoc">Default constructor. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:87</div></div>
<div class="ttc" id="classisce3_1_1core_1_1NearestNeighborInterpolator_html"><div class="ttname"><a href="classisce3_1_1core_1_1NearestNeighborInterpolator.html">isce3::core::NearestNeighborInterpolator</a></div><div class="ttdoc">Definition of NearestNeighborInterpolator. </div><div class="ttdef"><b>Definition:</b> forward.h:36</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html_a7545b4ff05255732d178cab260c05926"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html#a7545b4ff05255732d178cab260c05926">isce3::core::Interpolator::method</a></div><div class="ttdeci">dataInterpMethod method() const </div><div class="ttdoc">Return interpolation method. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:67</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Sinc2dInterpolator_html"><div class="ttname"><a href="classisce3_1_1core_1_1Sinc2dInterpolator.html">isce3::core::Sinc2dInterpolator</a></div><div class="ttdoc">Definition of Sinc2dInterpolator. </div><div class="ttdef"><b>Definition:</b> forward.h:38</div></div>
<div class="ttc" id="classisce3_1_1core_1_1BilinearInterpolator_html"><div class="ttname"><a href="classisce3_1_1core_1_1BilinearInterpolator.html">isce3::core::BilinearInterpolator</a></div><div class="ttdoc">Definition of BilinearInterpolator. </div><div class="ttdef"><b>Definition:</b> forward.h:34</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Spline2dInterpolator_html"><div class="ttname"><a href="classisce3_1_1core_1_1Spline2dInterpolator.html">isce3::core::Spline2dInterpolator</a></div><div class="ttdoc">Definition of Spline2dInterpolator. </div><div class="ttdef"><b>Definition:</b> forward.h:37</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html_a976d469eecb5e6cb99e3fe2eb7ea899e"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html#a976d469eecb5e6cb99e3fe2eb7ea899e">isce3::core::Interpolator::interpolate</a></div><div class="ttdeci">U interpolate(double x, double y, std::vector< U > &z_data, size_t width) const </div><div class="ttdoc">Interpolate at a given coordinate for data passed as a vector. </div><div class="ttdef"><b>Definition:</b> Interpolator.h:57</div></div>
<div class="ttc" id="classisce3_1_1core_1_1Interpolator_html"><div class="ttname"><a href="classisce3_1_1core_1_1Interpolator.html">isce3::core::Interpolator</a></div><div class="ttdoc">Definition of parent Interpolator. </div><div class="ttdef"><b>Definition:</b> forward.h:33</div></div>
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