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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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   <div id="projectname">CMU462 Library
   &#160;<span id="projectnumber">1.0</span>
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   <div id="projectbrief">15-462/15-662: Computer Graphics (Fall 2015)</div>
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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_93cde9e1f49b119e2b24d2ae2dcc682a.html">CMU462</a></li>  </ul>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef CMU462_SPECTRUM_H</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define CMU462_SPECTRUM_H</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#include &quot;CMU462.h&quot;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="preprocessor">#include &quot;color.h&quot;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;</div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_c_m_u462.html">CMU462</a> {</div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div>
<div class="line"><a name="l00015"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_spectrum.html">   15</a></span>&#160;<span class="keyword">class </span><a class="code" href="class_c_m_u462_1_1_spectrum.html">Spectrum</a> {</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160; <span class="keyword">public</span>:</div>
<div class="line"><a name="l00017"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_spectrum.html#a6c9c31136aae0dd5808b041fcb05da55">   17</a></span>&#160;  <span class="keywordtype">double</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a6c9c31136aae0dd5808b041fcb05da55">r</a>;  </div>
<div class="line"><a name="l00018"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_spectrum.html#a735a15fc99d7e219cd91214b7ac499e8">   18</a></span>&#160;  <span class="keywordtype">double</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a735a15fc99d7e219cd91214b7ac499e8">g</a>;  </div>
<div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_spectrum.html#a2aaca7f6e0861698339001336543f045">   19</a></span>&#160;  <span class="keywordtype">double</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a2aaca7f6e0861698339001336543f045">b</a>;  </div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">   28</a></span>&#160;  <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a>(<span class="keywordtype">double</span> r = 0, <span class="keywordtype">double</span> g = 0, <span class="keywordtype">double</span> b = 0) : r(r), g(g), b(b) {}</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;  <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a>(<span class="keyword">const</span> uint8_t *arr);</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;  <span class="comment">// operators //</span></div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;  <span class="keyword">inline</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html">Spectrum</a> operator+(<span class="keyword">const</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html">Spectrum</a> &amp;rhs)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a>(r + rhs.<a class="code" href="class_c_m_u462_1_1_spectrum.html#a6c9c31136aae0dd5808b041fcb05da55">r</a>, g + rhs.<a class="code" href="class_c_m_u462_1_1_spectrum.html#a735a15fc99d7e219cd91214b7ac499e8">g</a>, b + rhs.<a class="code" href="class_c_m_u462_1_1_spectrum.html#a2aaca7f6e0861698339001336543f045">b</a>);</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;  }</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;  <span class="keyword">inline</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;operator+=(<span class="keyword">const</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;rhs) {</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    r += rhs.r;</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;    g += rhs.g;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;    b += rhs.b;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;  }</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;  <span class="keyword">inline</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> operator*(<span class="keyword">const</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;rhs)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a>(r * rhs.r, g * rhs.g, b * rhs.b);</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  }</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;  <span class="keyword">inline</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;operator*=(<span class="keyword">const</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;rhs) {</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    r *= rhs.r;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;    g *= rhs.g;</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;    b *= rhs.b;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;  }</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;  <span class="keyword">inline</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> operator*(<span class="keywordtype">double</span> s)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a>(r * s, g * s, b * s);</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;  }</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;  <span class="keyword">inline</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;operator*=(<span class="keywordtype">double</span> s) {</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;    r *= s;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;    g *= s;</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;    b *= s;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;  }</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;rhs)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordflow">return</span> r == rhs.r &amp;&amp; g == rhs.g &amp;&amp; b == rhs.b;</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;  }</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;  <span class="keyword">inline</span> <span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> &amp;rhs)<span class="keyword"> const </span>{</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="keywordflow">return</span> !operator==(rhs);</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;  }</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;  <span class="keyword">inline</span> Color toColor()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> Color(r, g, b, 1); }</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  <span class="keyword">static</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a> fromColor(<span class="keyword">const</span> Color &amp;c) {</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">Spectrum</a>(c.a * c.r, c.a * c.g, c.a * c.b);</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;  }</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;};  <span class="comment">// class Spectrum</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;<span class="comment">// Commutable scalar multiplication</span></div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;<span class="keyword">inline</span> Spectrum operator*(<span class="keywordtype">double</span> s, <span class="keyword">const</span> Spectrum &amp;c) { <span class="keywordflow">return</span> c * s; }</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="comment">// Prints components</span></div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;std::ostream &amp;operator&lt;&lt;(std::ostream &amp;os, <span class="keyword">const</span> Spectrum &amp;c);</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;}  <span class="comment">// namespace CMU462</span></div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="preprocessor">#endif  // CMU462_SPECTRUM_H</span></div>
<div class="ttc" id="class_c_m_u462_1_1_spectrum_html_a2aaca7f6e0861698339001336543f045"><div class="ttname"><a href="class_c_m_u462_1_1_spectrum.html#a2aaca7f6e0861698339001336543f045">CMU462::Spectrum::b</a></div><div class="ttdeci">double b</div><div class="ttdoc">intensity of blue spectrum </div><div class="ttdef"><b>Definition:</b> spectrum.h:19</div></div>
<div class="ttc" id="namespace_c_m_u462_html"><div class="ttname"><a href="namespace_c_m_u462.html">CMU462</a></div><div class="ttdef"><b>Definition:</b> CMU462.h:8</div></div>
<div class="ttc" id="class_c_m_u462_1_1_spectrum_html"><div class="ttname"><a href="class_c_m_u462_1_1_spectrum.html">CMU462::Spectrum</a></div><div class="ttdoc">Encodes radiance & irradiance values by the intensity of each visible spectrum. </div><div class="ttdef"><b>Definition:</b> spectrum.h:15</div></div>
<div class="ttc" id="class_c_m_u462_1_1_spectrum_html_a843ed7c0ba50026b98d88996ba7edbea"><div class="ttname"><a href="class_c_m_u462_1_1_spectrum.html#a843ed7c0ba50026b98d88996ba7edbea">CMU462::Spectrum::Spectrum</a></div><div class="ttdeci">Spectrum(double r=0, double g=0, double b=0)</div><div class="ttdoc">Parameterized Constructor. </div><div class="ttdef"><b>Definition:</b> spectrum.h:28</div></div>
<div class="ttc" id="class_c_m_u462_1_1_spectrum_html_a735a15fc99d7e219cd91214b7ac499e8"><div class="ttname"><a href="class_c_m_u462_1_1_spectrum.html#a735a15fc99d7e219cd91214b7ac499e8">CMU462::Spectrum::g</a></div><div class="ttdeci">double g</div><div class="ttdoc">intensity of green spectrum </div><div class="ttdef"><b>Definition:</b> spectrum.h:18</div></div>
<div class="ttc" id="class_c_m_u462_1_1_spectrum_html_a6c9c31136aae0dd5808b041fcb05da55"><div class="ttname"><a href="class_c_m_u462_1_1_spectrum.html#a6c9c31136aae0dd5808b041fcb05da55">CMU462::Spectrum::r</a></div><div class="ttdeci">double r</div><div class="ttdoc">intensity of red spectrum </div><div class="ttdef"><b>Definition:</b> spectrum.h:17</div></div>
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