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<div class="title">IntelliHelper.h</div> </div>
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<a href="_intelli_helper_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="preprocessor">#ifndef INTELLIHELPER_H</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="preprocessor">#define INTELLIHELPER_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 &lt;QPoint&gt;</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160; </div>
<div class="line"><a name="l00010"></a><span class="lineno"><a class="line" href="struct_triangle.html"> 10</a></span>&#160;<span class="keyword">struct </span><a class="code" href="struct_triangle.html">Triangle</a> {</div>
<div class="line"><a name="l00011"></a><span class="lineno"><a class="line" href="struct_triangle.html#addb8aaab314d79f3617acca01e12872a"> 11</a></span>&#160; QPoint <a class="code" href="struct_triangle.html#a4fe8b39e0144ebff908b7718c2f2751b">A</a>,<a class="code" href="struct_triangle.html#a64fa6a90a6131f12a1a3054bf86647d7">B</a>,<a class="code" href="struct_triangle.html#addb8aaab314d79f3617acca01e12872a">C</a>;</div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;};</div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160; </div>
<div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="namespace_intelli_helper.html"> 14</a></span>&#160;<span class="keyword">namespace </span><a class="code" href="namespace_intelli_helper.html">IntelliHelper</a> {</div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="namespace_intelli_helper.html#afdd9fe78cc5d21b59642910220768149"> 23</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">float</span> <a class="code" href="namespace_intelli_helper.html#afdd9fe78cc5d21b59642910220768149">sign</a>(QPoint&amp; p1, QPoint&amp; p2, QPoint&amp; p3){</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; <span class="keywordflow">return</span> (p1.x()-p3.x())*(p2.y()-p3.y())-(p2.x()-p3.x())*(p1.y()-p3.y());</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;}</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160; </div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="namespace_intelli_helper.html#a9fcfe72f00e870be4a8ab9f2e17483c9"> 33</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="namespace_intelli_helper.html#a9fcfe72f00e870be4a8ab9f2e17483c9">isInTriangle</a>(<a class="code" href="struct_triangle.html">Triangle</a>&amp; tri, QPoint&amp; P){</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keywordtype">float</span> val1, val2, val3;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keywordtype">bool</span> neg, pos;</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; val1 = <a class="code" href="namespace_intelli_helper.html#afdd9fe78cc5d21b59642910220768149">IntelliHelper::sign</a>(P,tri.<a class="code" href="struct_triangle.html#a4fe8b39e0144ebff908b7718c2f2751b">A</a>,tri.<a class="code" href="struct_triangle.html#a64fa6a90a6131f12a1a3054bf86647d7">B</a>);</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; val2 = <a class="code" href="namespace_intelli_helper.html#afdd9fe78cc5d21b59642910220768149">IntelliHelper::sign</a>(P,tri.<a class="code" href="struct_triangle.html#a64fa6a90a6131f12a1a3054bf86647d7">B</a>,tri.<a class="code" href="struct_triangle.html#addb8aaab314d79f3617acca01e12872a">C</a>);</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; val3 = <a class="code" href="namespace_intelli_helper.html#afdd9fe78cc5d21b59642910220768149">IntelliHelper::sign</a>(P,tri.<a class="code" href="struct_triangle.html#addb8aaab314d79f3617acca01e12872a">C</a>,tri.<a class="code" href="struct_triangle.html#a4fe8b39e0144ebff908b7718c2f2751b">A</a>);</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; </div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; neg = (val1&lt;0.f) || (val2&lt;0.f) || (val3&lt;0.f);</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; pos = (val1&gt;0.f) || (val2&gt;0.f) || (val3&gt;0.f);</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keywordflow">return</span> !(neg &amp;&amp; pos);</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160;}</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;std::vector&lt;Triangle&gt; <a class="code" href="namespace_intelli_helper.html#a214dc3624ba4562a03dc922e3dd7b617">calculateTriangles</a>(std::vector&lt;QPoint&gt; polyPoints);</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160;<span class="keywordtype">bool</span> <a class="code" href="namespace_intelli_helper.html#a44d516b3e619e2a743e9c98dd75cf901">isInPolygon</a>(std::vector&lt;Triangle&gt; &amp;triangles, QPoint &amp;point);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;}</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>&#160; </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;<span class="preprocessor">#endif</span></div>
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<div class="ttc" id="anamespace_intelli_helper_html_a9fcfe72f00e870be4a8ab9f2e17483c9"><div class="ttname"><a href="namespace_intelli_helper.html#a9fcfe72f00e870be4a8ab9f2e17483c9">IntelliHelper::isInTriangle</a></div><div class="ttdeci">bool isInTriangle(Triangle &amp;tri, QPoint &amp;P)</div><div class="ttdoc">A function to check if a given point is in a triangle.</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8h_source.html#l00033">IntelliHelper.h:33</a></div></div>
<div class="ttc" id="astruct_triangle_html_a64fa6a90a6131f12a1a3054bf86647d7"><div class="ttname"><a href="struct_triangle.html#a64fa6a90a6131f12a1a3054bf86647d7">Triangle::B</a></div><div class="ttdeci">QPoint B</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8h_source.html#l00011">IntelliHelper.h:11</a></div></div>
<div class="ttc" id="astruct_triangle_html_addb8aaab314d79f3617acca01e12872a"><div class="ttname"><a href="struct_triangle.html#addb8aaab314d79f3617acca01e12872a">Triangle::C</a></div><div class="ttdeci">QPoint C</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8h_source.html#l00011">IntelliHelper.h:11</a></div></div>
<div class="ttc" id="anamespace_intelli_helper_html"><div class="ttname"><a href="namespace_intelli_helper.html">IntelliHelper</a></div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8h_source.html#l00014">IntelliHelper.h:14</a></div></div>
<div class="ttc" id="astruct_triangle_html"><div class="ttname"><a href="struct_triangle.html">Triangle</a></div><div class="ttdoc">The Triangle struct holds the 3 vertices of a triangle.</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8h_source.html#l00010">IntelliHelper.h:10</a></div></div>
<div class="ttc" id="anamespace_intelli_helper_html_a44d516b3e619e2a743e9c98dd75cf901"><div class="ttname"><a href="namespace_intelli_helper.html#a44d516b3e619e2a743e9c98dd75cf901">IntelliHelper::isInPolygon</a></div><div class="ttdeci">bool isInPolygon(std::vector&lt; Triangle &gt; &amp;triangles, QPoint &amp;point)</div><div class="ttdoc">A function to check if a point lies in a polygon by checking its spanning triangles.</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8cpp_source.html#l00116">IntelliHelper.cpp:116</a></div></div>
<div class="ttc" id="astruct_triangle_html_a4fe8b39e0144ebff908b7718c2f2751b"><div class="ttname"><a href="struct_triangle.html#a4fe8b39e0144ebff908b7718c2f2751b">Triangle::A</a></div><div class="ttdeci">QPoint A</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8h_source.html#l00011">IntelliHelper.h:11</a></div></div>
<div class="ttc" id="anamespace_intelli_helper_html_a214dc3624ba4562a03dc922e3dd7b617"><div class="ttname"><a href="namespace_intelli_helper.html#a214dc3624ba4562a03dc922e3dd7b617">IntelliHelper::calculateTriangles</a></div><div class="ttdeci">std::vector&lt; Triangle &gt; calculateTriangles(std::vector&lt; QPoint &gt; polyPoints)</div><div class="ttdoc">A function to split a polygon in its spanning traingles by using Meisters Theorem of graph theory by ...</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8cpp_source.html#l00007">IntelliHelper.cpp:7</a></div></div>
<div class="ttc" id="anamespace_intelli_helper_html_afdd9fe78cc5d21b59642910220768149"><div class="ttname"><a href="namespace_intelli_helper.html#afdd9fe78cc5d21b59642910220768149">IntelliHelper::sign</a></div><div class="ttdeci">float sign(QPoint &amp;p1, QPoint &amp;p2, QPoint &amp;p3)</div><div class="ttdoc">A function to get the 2*area of a traingle, using its determinat.</div><div class="ttdef"><b>Definition:</b> <a href="_intelli_helper_8h_source.html#l00023">IntelliHelper.h:23</a></div></div>
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