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+<hr><h1>aabbox.cpp</h1><a href="aabbox_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
+00007 <font class="comment">/* Copyright, 2000 Nevrax Ltd.</font>
+00008 <font class="comment"> *</font>
+00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
+00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
+00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
+00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
+00013 <font class="comment"> * any later version.</font>
+00014 <font class="comment"></font>
+00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
+00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
+00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
+00018 <font class="comment"> * General Public License for more details.</font>
+00019 <font class="comment"></font>
+00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
+00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
+00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
+00023 <font class="comment"> * MA 02111-1307, USA.</font>
+00024 <font class="comment"> */</font>
+00025
+00026 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font>
+00027
+00028 <font class="preprocessor">#include "<a class="code" href="aabbox_8h.html">nel/misc/aabbox.h</a>"</font>
+00029 <font class="preprocessor">#include "<a class="code" href="polygon_8h.html">nel/misc/polygon.h</a>"</font>
+00030 <font class="preprocessor">#include "<a class="code" href="bsphere_8h.html">nel/misc/bsphere.h</a>"</font>
+00031 <font class="preprocessor">#include "<a class="code" href="matrix_8h.html">nel/misc/matrix.h</a>"</font>
+00032
+00033
+00034
+00035 <font class="keyword">namespace </font>NLMISC {
+00036
+00037
+00038 <font class="comment">// ***************************************************************************</font>
+<a name="l00039"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z265_0">00039</a> <font class="keywordtype">bool</font> CAABBox::clipFront(<font class="keyword">const</font> CPlane &amp;p)<font class="keyword"> const</font>
+00040 <font class="keyword"></font>{
+00041 CVector hswap;
+00042
+00043 <font class="comment">// The bbox is front of the plane if only one of his vertex is in front.</font>
+00044 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00045 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00046 hswap.set(-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z);
+00047 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + hswap) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00048 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - hswap) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00049 hswap.set(<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x, -<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z);
+00050 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + hswap) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00051 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - hswap) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00052 hswap.set(<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y, -<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z);
+00053 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + hswap) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00054 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - hswap) &gt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00055
+00056 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00057 }
+00058 <font class="comment">// ***************************************************************************</font>
+<a name="l00059"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z265_1">00059</a> <font class="keywordtype">bool</font> CAABBox::clipBack(<font class="keyword">const</font> CPlane &amp;p)<font class="keyword"> const</font>
+00060 <font class="keyword"></font>{
+00061 CVector hswap;
+00062
+00063 <font class="comment">// The bbox is back of the plane if only one of his vertex is in back.</font>
+00064 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00065 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00066 hswap.set(-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z);
+00067 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + hswap) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00068 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - hswap) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00069 hswap.set(<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x, -<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z);
+00070 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + hswap) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00071 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - hswap) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00072 hswap.set(<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x, <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y, -<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z);
+00073 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> + hswap) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00074 <font class="keywordflow">if</font>(p*(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a> - hswap) &lt; 0) <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00075
+00076 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00077 }
+00078
+00079
+00080 <font class="comment">// ***************************************************************************</font>
+<a name="l00081"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z265_2">00081</a> <font class="keywordtype">bool</font> CAABBox::include(<font class="keyword">const</font> CVector &amp;a)<font class="keyword"> const</font>
+00082 <font class="keyword"></font>{
+00083 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.x+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x&lt;a.x) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00084 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.x-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x&gt;a.x) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00085 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.y+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y&lt;a.y) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00086 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.y-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y&gt;a.y) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00087 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.z+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z&lt;a.z) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00088 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.z-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z&gt;a.z) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00089 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00090 }
+00091
+00092
+00093 <font class="comment">// ***************************************************************************</font>
+<a name="l00094"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z265_3">00094</a> <font class="keywordtype">bool</font> CAABBox::include(<font class="keyword">const</font> CAABBox &amp;box)<font class="keyword"> const</font>
+00095 <font class="keyword"></font>{
+00096 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.x+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x &lt; box.Center.x+box.HalfSize.x) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00097 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.x-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x &gt; box.Center.x-box.HalfSize.x) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00098 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.y+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y &lt; box.Center.y+box.HalfSize.y) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00099 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.y-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y &gt; box.Center.y-box.HalfSize.y) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00100 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.z+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z &lt; box.Center.z+box.HalfSize.z) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00101 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.z-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z &gt; box.Center.z-box.HalfSize.z) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00102 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00103 }
+00104
+00105
+00106 <font class="comment">// ***************************************************************************</font>
+<a name="l00107"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z265_4">00107</a> <font class="keywordtype">bool</font> CAABBox::intersect(<font class="keyword">const</font> CAABBox &amp;box)<font class="keyword"> const</font>
+00108 <font class="keyword"></font>{
+00109 CVector mina = <a class="code" href="classNLMISC_1_1CAABBox.html#z264_0">getMin</a>(), maxa = <a class="code" href="classNLMISC_1_1CAABBox.html#z264_1">getMax</a>(),
+00110 minb = box.getMin(), maxb = box.getMax();
+00111
+00112 <font class="keywordflow">return</font> ! ( mina.x &gt; maxb.x ||
+00113 mina.y &gt; maxb.y ||
+00114 mina.z &gt; maxb.z ||
+00115 minb.x &gt; maxa.x ||
+00116 minb.y &gt; maxa.y ||
+00117 minb.z &gt; maxa.z);
+00118 }
+00119
+00120 <font class="comment">// ***************************************************************************</font>
+<a name="l00121"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z265_5">00121</a> <font class="keywordtype">bool</font> CAABBox::intersect(<font class="keyword">const</font> CVector &amp;a, <font class="keyword">const</font> CVector &amp;b, <font class="keyword">const</font> CVector &amp;c)<font class="keyword"> const</font>
+00122 <font class="keyword"></font>{
+00123 <font class="comment">// Trivial test.</font>
+00124 <font class="keywordflow">if</font>(<a class="code" href="classNLMISC_1_1CAABBox.html#z265_2">include</a>(a) || <a class="code" href="classNLMISC_1_1CAABBox.html#z265_2">include</a>(b) || <a class="code" href="classNLMISC_1_1CAABBox.html#z265_2">include</a>(c))
+00125 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00126 <font class="comment">// Else, must test if the polygon intersect the pyamid.</font>
+00127 CPlane planes[6];
+00128 <a class="code" href="classNLMISC_1_1CAABBox.html#z266_0">makePyramid</a>(planes);
+00129 CPolygon poly(a,b,c);
+00130 poly.clip(planes, 6);
+00131 <font class="keywordflow">if</font>(poly.getNumVertices()==0)
+00132 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00133 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00134 }
+00135
+00136 <font class="comment">// ***************************************************************************</font>
+<a name="l00137"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z265_6">00137</a> <font class="keywordtype">bool</font> CAABBox::intersect(<font class="keyword">const</font> CBSphere &amp;<a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>)<font class="keyword"> const</font>
+00138 <font class="keyword"></font>{
+00139 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.x + <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x &lt; <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Center.x - <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Radius) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00140 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.y + <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y &lt; <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Center.y - <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Radius) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00141 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.z + <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z &lt; <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Center.z - <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Radius) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00142
+00143 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.x - <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.x &gt; <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Center.x + <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Radius) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00144 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.y - <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.y &gt; <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Center.y + <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Radius) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00145 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>.z - <a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>.z &gt; <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Center.z + <a class="code" href="driver__opengl__extension__def_8h.html#a383">s</a>.Radius) <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00146
+00147 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00148 }
+00149
+00150
+00151
+00152 <font class="comment">// ***************************************************************************</font>
+<a name="l00153"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z266_0">00153</a> <font class="keywordtype">void</font> CAABBox::makePyramid(CPlane planes[6])<font class="keyword"> const</font>
+00154 <font class="keyword"></font>{
+00155 planes[0].make(CVector(-1,0,0), <a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>);
+00156 planes[1].make(CVector(+1,0,0), <a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>);
+00157 planes[2].make(CVector(0,-1,0), <a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>);
+00158 planes[3].make(CVector(0,+1,0), <a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>);
+00159 planes[4].make(CVector(0,0,-1), <a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>-<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>);
+00160 planes[5].make(CVector(0,0,+1), <a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>+<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>);
+00161 }
+00162
+00163
+00164 <font class="comment">// ***************************************************************************</font>
+<a name="l00165"></a><a class="code" href="classNLMISC_1_1CAABBox.html#a1">00165</a> <font class="keywordtype">void</font> CAABBox::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f)
+00166 {
+00167 (void)f.<a class="code" href="classNLMISC_1_1IStream.html#a29">serialVersion</a>(0);
+00168 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>);
+00169 f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLMISC_1_1CAABBox.html#n1">HalfSize</a>);
+00170 }
+00171
+00172
+00173 <font class="comment">// ***************************************************************************</font>
+<a name="l00174"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z263_4">00174</a> <font class="keywordtype">void</font> CAABBox::extend(<font class="keyword">const</font> CVector &amp;<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)
+00175 {
+00176 CVector bmin= <a class="code" href="classNLMISC_1_1CAABBox.html#z264_0">getMin</a>(), bmax= <a class="code" href="classNLMISC_1_1CAABBox.html#z264_1">getMax</a>();
+00177
+00178 bmin.minof(bmin, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>);
+00179 bmax.maxof(bmax, <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>);
+00180 <a class="code" href="classNLMISC_1_1CAABBox.html#z263_3">setMinMax</a>(bmin, bmax);
+00181 }
+00182
+00183
+00184 <font class="comment">//==========================================================================</font>
+<a name="l00190"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z266_2">00190</a> <font class="comment"></font>CAABBox CAABBox::computeAABBoxUnion(<font class="keyword">const</font> CAABBox &amp;b1, <font class="keyword">const</font> CAABBox &amp;b2)
+00191 {
+00192 <a class="code" href="classNLMISC_1_1CAABBox.html#a0">CAABBox</a> result;
+00193 CVector <a class="code" href="bit__set_8cpp.html#a0">min</a>, max;
+00194 CVector min1 = b1.getMin()
+00195 ,max1 = b1.getMax()
+00196 ,min2 = b2.getMin()
+00197 ,max2 = b2.getMax();
+00198 max.maxof(max1, max2);
+00199 <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(min1, min2);
+00200 result.setMinMax(<a class="code" href="bit__set_8cpp.html#a0">min</a>, max);
+00201 <font class="keywordflow">return</font> result;
+00202 }
+00203
+00204
+00205 <font class="comment">//==========================================================================</font>
+<a name="l00206"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z266_1">00206</a> <font class="keywordtype">void</font> CAABBox::computeIntersection(<font class="keyword">const</font> CAABBox &amp;b1, <font class="keyword">const</font> CAABBox &amp;b2)
+00207 {
+00208 CVector min1 = b1.getMin(), max1 = b1.getMax(),
+00209 min2 = b2.getMin(), max2 = b2.getMax();
+00210 CVector minr, maxr;
+00211
+00212 <font class="comment">// don't test if intersect or not.</font>
+00213 maxr.minof(max1, max2);
+00214 minr.maxof(min1, min2);
+00215
+00216 <a class="code" href="classNLMISC_1_1CAABBox.html#z263_3">setMinMax</a>(minr, maxr);
+00217 }
+00218
+00219
+00220 <font class="comment">//==========================================================================</font>
+<a name="l00221"></a><a class="code" href="classNLMISC_1_1CAABBox.html#z266_3">00221</a> CAABBox CAABBox::transformAABBox(<font class="keyword">const</font> CMatrix &amp;mat, <font class="keyword">const</font> CAABBox &amp;box)
+00222 {
+00223 <font class="comment">// TODO : optimize this a bit if possible...</font>
+00224 <a class="code" href="classNLMISC_1_1CAABBox.html#a0">CAABBox</a> result;
+00225
+00226 <font class="keyword">const</font> CVector &amp;m = mat * box.getCenter();
+00227 <font class="keyword">const</font> CVector &amp;h = mat.mulVector(box.getHalfSize());
+00228 CVector tmp, <a class="code" href="bit__set_8cpp.html#a0">min</a>, max;
+00229 <a class="code" href="bit__set_8cpp.html#a0">min</a> = max = m;
+00230 tmp = m + CVector(h.x, h.y, -h.z); <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(<a class="code" href="bit__set_8cpp.html#a0">min</a>, tmp); max.maxof(max, tmp);
+00231 tmp = m + CVector(h.x, -h.y, h.z); <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(<a class="code" href="bit__set_8cpp.html#a0">min</a>, tmp); max.maxof(max, tmp);
+00232 tmp = m + CVector(h.x, -h.y, -h.z); <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(<a class="code" href="bit__set_8cpp.html#a0">min</a>, tmp); max.maxof(max, tmp);
+00233 tmp = m + CVector(-h.x, h.y, h.z); <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(<a class="code" href="bit__set_8cpp.html#a0">min</a>, tmp); max.maxof(max, tmp);
+00234 tmp = m + CVector(-h.x, h.y, -h.z); <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(<a class="code" href="bit__set_8cpp.html#a0">min</a>, tmp); max.maxof(max, tmp);
+00235 tmp = m + CVector(-h.x, -h.y, h.z); <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(<a class="code" href="bit__set_8cpp.html#a0">min</a>, tmp); max.maxof(max, tmp);
+00236 tmp = m + CVector(-h.x, -h.y, -h.z); <a class="code" href="bit__set_8cpp.html#a0">min</a>.minof(<a class="code" href="bit__set_8cpp.html#a0">min</a>, tmp); max.maxof(max, tmp);
+00237
+00238 result.setMinMax(<a class="code" href="bit__set_8cpp.html#a0">min</a>, max);
+00239
+00240 <font class="keywordflow">return</font> result;
+00241 }
+00242
+00243
+00244
+00245 <font class="comment">// ***************************************************************************</font>
+<a name="l00246"></a><a class="code" href="classNLMISC_1_1CAABBoxExt.html#z269_0">00246</a> <font class="keywordtype">bool</font> CAABBoxExt::clipFront(<font class="keyword">const</font> CPlane &amp;p)<font class="keyword"> const</font>
+00247 <font class="keyword"></font>{
+00248 <font class="comment">// Assume normalized planes.</font>
+00249
+00250 <font class="comment">// if( SpherMax OUT ) return false.</font>
+00251 <font class="keywordtype">float</font> d= p*<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>;
+00252 <font class="keywordflow">if</font>(d&lt;-<a class="code" href="classNLMISC_1_1CAABBoxExt.html#n1">RadiusMax</a>)
+00253 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00254 <font class="comment">// if( SphereMin IN ) return true;</font>
+00255 <font class="keywordflow">if</font>(d&gt;-<a class="code" href="classNLMISC_1_1CAABBoxExt.html#n0">RadiusMin</a>)
+00256 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00257
+00258 <font class="comment">// else, standard clip box.</font>
+00259 <font class="keywordflow">return</font> CAABBox::clipFront(p);
+00260 }
+00261
+00262
+00263 <font class="comment">// ***************************************************************************</font>
+<a name="l00264"></a><a class="code" href="classNLMISC_1_1CAABBoxExt.html#z269_1">00264</a> <font class="keywordtype">bool</font> CAABBoxExt::clipBack(<font class="keyword">const</font> CPlane &amp;p)<font class="keyword"> const</font>
+00265 <font class="keyword"></font>{
+00266 <font class="comment">// Assume normalized planes.</font>
+00267
+00268 <font class="comment">// if( SpherMax OUT ) return false.</font>
+00269 <font class="keywordtype">float</font> d= p*<a class="code" href="classNLMISC_1_1CAABBox.html#n0">Center</a>;
+00270 <font class="keywordflow">if</font>(d&gt;<a class="code" href="classNLMISC_1_1CAABBoxExt.html#n1">RadiusMax</a>)
+00271 <font class="keywordflow">return</font> <font class="keyword">false</font>;
+00272 <font class="comment">// if( SphereMin IN ) return true;</font>
+00273 <font class="keywordflow">if</font>(d&lt;<a class="code" href="classNLMISC_1_1CAABBoxExt.html#n0">RadiusMin</a>)
+00274 <font class="keywordflow">return</font> <font class="keyword">true</font>;
+00275
+00276 <font class="comment">// else, standard clip box.</font>
+00277 <font class="keywordflow">return</font> CAABBox::clipBack(p);
+00278 }
+00279
+00280
+00281 <font class="comment">// ***************************************************************************</font>
+<a name="l00282"></a><a class="code" href="classNLMISC_1_1CAABBoxExt.html#a2">00282</a> <font class="keywordtype">void</font> CAABBoxExt::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f)
+00283 {
+00284 CAABBox::serial(f);
+00285 <font class="keywordflow">if</font>(f.<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>())
+00286 <a class="code" href="classNLMISC_1_1CAABBoxExt.html#b0">updateRadius</a>();
+00287 }
+00288
+00289
+00290 } <font class="comment">// NLMISC</font>
+</pre></div>
+
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