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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_1878a3f4746a95c6aad317458cc7ef80.html">boost</a></li><li class="navelem"><a class="el" href="dir_df4750f408086f9b9c1b5ee4251365ff.html">gil</a></li> </ul>
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<div class="headertitle"><div class="title">point.hpp</div></div>
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<div class="contents">
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<div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">//</span></div>
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<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment">// Copyright 2005-2007 Adobe Systems Incorporated</span></div>
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<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">//</span></div>
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<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment">// Distributed under the Boost Software License, Version 1.0</span></div>
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<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">// See accompanying file LICENSE_1_0.txt or copy at</span></div>
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<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment">// http://www.boost.org/LICENSE_1_0.txt</span></div>
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<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">//</span></div>
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<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="preprocessor">#ifndef BOOST_GIL_POINT_HPP</span></div>
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<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="preprocessor">#define BOOST_GIL_POINT_HPP</span></div>
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<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span> </div>
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<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="preprocessor">#include <boost/gil/utilities.hpp></span></div>
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<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="preprocessor">#include <boost/gil/detail/std_common_type.hpp></span></div>
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<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span> </div>
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<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="preprocessor">#include <boost/config.hpp></span></div>
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<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
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<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#include <cstddef></span></div>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#include <type_traits></span></div>
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<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
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<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceboost.html">boost</a> { <span class="keyword">namespace </span>gil {</div>
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<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> </div>
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<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div>
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<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="foldopen" id="foldopen00035" data-start="{" data-end="};">
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<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"><a class="line" href="classboost_1_1gil_1_1point.html"> 35</a></span><span class="keyword">class </span><a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a></div>
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<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span>{</div>
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<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span><span class="keyword">public</span>:</div>
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<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">using </span>value_type = T;</div>
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<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
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<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">template</span><std::<span class="keywordtype">size_t</span> D></div>
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<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">struct </span>axis</div>
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<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> {</div>
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<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="keyword">using </span>coord_t = value_type;</div>
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<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> };</div>
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<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> </div>
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<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> std::size_t num_dimensions = 2;</div>
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<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
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<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>() = <span class="keywordflow">default</span>;</div>
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<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>(T px, T py) : x(px), y(py) {}</div>
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<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
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<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a> operator<<(std::ptrdiff_t shift)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>(x << shift, y << shift);</div>
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<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> }</div>
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<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
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<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a> operator>>(std::ptrdiff_t shift)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>(x >> shift, y >> shift);</div>
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<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> }</div>
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<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>& operator+=(<a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a> <span class="keyword">const</span>& p)</div>
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<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> {</div>
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<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> x += p.x;</div>
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<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> y += p.y;</div>
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<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> }</div>
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<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div>
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<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>& operator-=(<a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a> <span class="keyword">const</span>& p)</div>
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<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> {</div>
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<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> x -= p.x;</div>
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<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> y -= p.y;</div>
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<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> }</div>
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<div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div>
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<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>& operator/=(<span class="keywordtype">double</span> d)</div>
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<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> {</div>
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<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordflow">if</span> (d < 0 || 0 < d)</div>
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<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> {</div>
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<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> x = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(x / d);</div>
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<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> y = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(y / d);</div>
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<div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> }</div>
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<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> }</div>
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<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> </div>
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<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point</a>& operator*=(<span class="keywordtype">double</span> d)</div>
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<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> {</div>
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<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> x = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(x * d);</div>
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<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> y = <span class="keyword">static_cast<</span>T<span class="keyword">></span>(y * d);</div>
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<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
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<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> }</div>
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<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
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<div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> T <span class="keyword">const</span>& operator[](std::size_t i)<span class="keyword"> const</span></div>
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<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span><span class="keyword"> </span>{</div>
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<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> <span class="keywordflow">return</span> this->*mem_array[i];</div>
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<div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> }</div>
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<div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span> </div>
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<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> T& operator[](std::size_t i)</div>
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<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> {</div>
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<div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span> <span class="keywordflow">return</span> this->*mem_array[i];</div>
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<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> }</div>
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<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
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<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> T x{0};</div>
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<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> T y{0};</div>
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<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> </div>
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<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span><span class="keyword">private</span>:</div>
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<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> <span class="comment">// this static array of pointers to member variables makes operator[] safe</span></div>
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<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span> <span class="comment">// and doesn't seem to exhibit any performance penalty.</span></div>
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<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span> <span class="keyword">static</span> T <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<T></a>::* <span class="keyword">const</span> mem_array[num_dimensions];</div>
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<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span>};</div>
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</div>
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<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span> </div>
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<div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="keyword">using </span><a class="code hl_class" href="classboost_1_1gil_1_1point.html">point2</a> = <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<T></a>;</div>
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<div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> </div>
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<div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="keyword">using </span><a class="code hl_class" href="classboost_1_1gil_1_1point.html">point_t</a> = <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<std::ptrdiff_t></a>;</div>
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<div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span> </div>
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<div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span>T <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<T></a>::* <span class="keyword">const</span> <a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<T>::mem_array</a>[<a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<T>::num_dimensions</a>] =</div>
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<div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span>{</div>
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<div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span> &<a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<T>::x</a>,</div>
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<div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span> &<a class="code hl_class" href="classboost_1_1gil_1_1point.html">point<T>::y</a></div>
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<div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span>};</div>
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<div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span> </div>
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<div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="keywordtype">bool</span> operator==(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div>
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<div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span>{</div>
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<div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span> <span class="keywordflow">return</span> p1.x == p2.x && p1.y == p2.y;</div>
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<div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span>}</div>
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<div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span> </div>
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<div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span><span class="keywordtype">bool</span> operator!=(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div>
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<div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span>{</div>
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<div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">return</span> p1.x != p2.x || p1.y != p2.y;</div>
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<div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span>}</div>
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<div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div>
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<div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span>point<T> operator+(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div>
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<div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span>{</div>
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<div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> <span class="keywordflow">return</span> { p1.x + p2.x, p1.y + p2.y };</div>
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<div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span>}</div>
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<div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> </div>
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<div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span>point<T> operator-(<span class="keyword">const</span> point<T>& p)</div>
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<div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span>{</div>
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<div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">return</span> { -p.x, -p.y };</div>
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<div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span>}</div>
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<div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> </div>
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<div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span>point<T> operator-(<span class="keyword">const</span> point<T>& p1, <span class="keyword">const</span> point<T>& p2)</div>
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<div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span>{</div>
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<div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keywordflow">return</span> { p1.x - p2.x, p1.y - p2.y };</div>
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<div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span>}</div>
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<div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div>
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<div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span><span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">typename</span> D></div>
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<div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span><span class="keyword">auto</span> operator/(point<T> <span class="keyword">const</span>& p, D d)</div>
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<div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> -> <span class="keyword">typename</span> std::enable_if</div>
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<div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <</div>
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<div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span> std::is_arithmetic<D>::value,</div>
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<div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> point<typename detail::std_common_type<T, D>::type></div>
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<div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span> >::type</div>
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<div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span>{</div>
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<div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span> <span class="keyword">static_assert</span>(std::is_arithmetic<D>::value, <span class="stringliteral">"denominator is not arithmetic type"</span>);</div>
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<div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> <span class="keyword">using </span>result_type = <span class="keyword">typename</span> detail::std_common_type<T, D>::type;</div>
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<div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keywordflow">if</span> (d < 0 || 0 < d)</div>
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<div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> {</div>
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<div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordtype">double</span> <span class="keyword">const</span> x = <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(p.x) / <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(d);</div>
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<div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordtype">double</span> <span class="keyword">const</span> y = <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(p.y) / <span class="keyword">static_cast<</span><span class="keywordtype">double</span><span class="keyword">></span>(d);</div>
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<div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">return</span> point<result_type>{</div>
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<div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> <span class="keyword">static_cast<</span>result_type<span class="keyword">></span>(iround(x)),</div>
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<div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> <span class="keyword">static_cast<</span>result_type<span class="keyword">></span>(iround(y))};</div>
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<div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> }</div>
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<div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> <span class="keywordflow">else</span></div>
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<div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> {</div>
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<div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> <span class="keywordflow">return</span> point<result_type>{0, 0};</div>
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<div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> }</div>
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<div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span>}</div>
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<div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> </div>
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<div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span><span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">typename</span> M></div>
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<div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span><span class="keyword">auto</span> operator*(point<T> <span class="keyword">const</span>& p, M m)</div>
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<div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> -> <span class="keyword">typename</span> std::enable_if</div>
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<div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <</div>
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<div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> std::is_arithmetic<M>::value,</div>
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<div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> point<typename detail::std_common_type<T, M>::type></div>
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<div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> >::type</div>
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<div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span>{</div>
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<div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> <span class="keyword">static_assert</span>(std::is_arithmetic<M>::value, <span class="stringliteral">"multiplier is not arithmetic type"</span>);</div>
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|
<div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> <span class="keyword">using </span>result_type = <span class="keyword">typename</span> detail::std_common_type<T, M>::type;</div>
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<div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">return</span> point<result_type>{p.x * m, p.y * m};</div>
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<div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span>}</div>
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<div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> </div>
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<div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span><span class="keyword">template</span> <<span class="keyword">typename</span> T, <span class="keyword">typename</span> M></div>
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<div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span><span class="keyword">auto</span> operator*(M m, point<T> <span class="keyword">const</span>& p)</div>
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<div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> -> <span class="keyword">typename</span> std::enable_if</div>
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<div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> <</div>
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<div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> std::is_arithmetic<M>::value,</div>
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<div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span> point<typename detail::std_common_type<T, M>::type></div>
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<div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> >::type</div>
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<div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span>{</div>
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<div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> <span class="keyword">static_assert</span>(std::is_arithmetic<M>::value, <span class="stringliteral">"multiplier is not arithmetic type"</span>);</div>
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<div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keyword">using </span>result_type = <span class="keyword">typename</span> detail::std_common_type<T, M>::type;</div>
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<div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="keywordflow">return</span> point<result_type>{p.x * m, p.y * m};</div>
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<div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span>}</div>
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<div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> </div>
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<div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span><span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> K, <span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span>T <span class="keyword">const</span>& axis_value(point<T> <span class="keyword">const</span>& p)</div>
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<div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span>{</div>
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<div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span> <span class="keyword">static_assert</span>(K < point<T>::num_dimensions, <span class="stringliteral">"axis index out of range"</span>);</div>
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<div class="line"><a id="l00228" name="l00228"></a><span class="lineno"> 228</span> <span class="keywordflow">return</span> p[K];</div>
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<div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span>}</div>
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<div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div>
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<div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span><span class="keyword">template</span> <std::<span class="keywordtype">size_t</span> K, <span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span>BOOST_FORCEINLINE</div>
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<div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span>T& axis_value(point<T>& p)</div>
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<div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span>{</div>
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<div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keyword">static_assert</span>(K < point<T>::num_dimensions, <span class="stringliteral">"axis index out of range"</span>);</div>
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<div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> <span class="keywordflow">return</span> p[K];</div>
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<div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span>}</div>
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<div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> </div>
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<div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> </div>
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<div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span><span class="keyword">template</span> <<span class="keyword">typename</span> T></div>
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<div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span><span class="keyword">inline</span> <span class="keyword">auto</span> iround(point<T> <span class="keyword">const</span>& p) -> point<std::ptrdiff_t></div>
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<div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span>{</div>
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<div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="keyword">static_assert</span>(std::is_integral<T>::value, <span class="stringliteral">"T is not integer"</span>);</div>
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<div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> <span class="keywordflow">return</span> { <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(p.x), <span class="keyword">static_cast<</span>std::ptrdiff_t<span class="keyword">></span>(p.y) };</div>
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<div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span>}</div>
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<div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> </div>
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<div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span><span class="keyword">inline</span> <span class="keyword">auto</span> iround(point<float> <span class="keyword">const</span>& p) -> point<std::ptrdiff_t></div>
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<div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span>{</div>
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<div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="keywordflow">return</span> { iround(p.x), iround(p.y) };</div>
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<div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span>}</div>
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<div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> </div>
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<div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span><span class="keyword">inline</span> <span class="keyword">auto</span> iround(point<double> <span class="keyword">const</span>& p) -> point<std::ptrdiff_t></div>
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<div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span>{</div>
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<div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> <span class="keywordflow">return</span> { iround(p.x), iround(p.y) };</div>
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<div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span>}</div>
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<div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> </div>
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<div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span><span class="keyword">inline</span> <span class="keyword">auto</span> ifloor(point<float> <span class="keyword">const</span>& p) -> point<std::ptrdiff_t></div>
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<div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span>{</div>
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<div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> <span class="keywordflow">return</span> { ifloor(p.x), ifloor(p.y) };</div>
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<div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span>}</div>
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<div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> </div>
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<div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span><span class="keyword">inline</span> <span class="keyword">auto</span> ifloor(point<double> <span class="keyword">const</span>& p) -> point<std::ptrdiff_t></div>
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<div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span>{</div>
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<div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> <span class="keywordflow">return</span> { ifloor(p.x), ifloor(p.y) };</div>
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<div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span>}</div>
|
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<div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> </div>
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<div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span><span class="keyword">inline</span> <span class="keyword">auto</span> iceil(point<float> <span class="keyword">const</span>& p) -> point<std::ptrdiff_t></div>
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<div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span>{</div>
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<div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> <span class="keywordflow">return</span> { iceil(p.x), iceil(p.y) };</div>
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<div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span>}</div>
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<div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> </div>
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<div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span><span class="keyword">inline</span> <span class="keyword">auto</span> iceil(point<double> <span class="keyword">const</span>& p) -> point<std::ptrdiff_t></div>
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<div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span>{</div>
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<div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">return</span> { iceil(p.x), iceil(p.y) };</div>
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<div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span>}</div>
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<div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> </div>
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<div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span>}} <span class="comment">// namespace boost::gil</span></div>
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<div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> </div>
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<div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span><span class="preprocessor">#endif</span></div>
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<div class="ttc" id="aclassboost_1_1gil_1_1point_html"><div class="ttname"><a href="classboost_1_1gil_1_1point.html">boost::gil::point</a></div><div class="ttdoc">2D point both axes of which have the same dimension typeModels: Point2DConcept</div><div class="ttdef"><b>Definition</b> point.hpp:36</div></div>
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<div class="ttc" id="anamespaceboost_html"><div class="ttname"><a href="namespaceboost.html">boost</a></div><div class="ttdoc">defined(BOOST_NO_CXX17_HDR_MEMORY_RESOURCE)</div><div class="ttdef"><b>Definition</b> algorithm.hpp:36</div></div>
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