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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 &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>) > 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>) > 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) > 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) > 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) > 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) > 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) > 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) > 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 &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>) < 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>) < 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) < 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) < 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) < 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) < 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) < 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) < 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 &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<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>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<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>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<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>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 &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 < 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 > 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 < 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 > 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 < 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 > 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 &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 > maxb.x ||
00113 mina.y > maxb.y ||
00114 mina.z > maxb.z ||
00115 minb.x > maxa.x ||
00116 minb.y > maxa.y ||
00117 minb.z > 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 &a, <font class="keyword">const</font> CVector &b, <font class="keyword">const</font> CVector &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 &<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 < <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 < <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 < <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 > <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 > <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 > <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> &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 &<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 &b1, <font class="keyword">const</font> CAABBox &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 &b1, <font class="keyword">const</font> CAABBox &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 &mat, <font class="keyword">const</font> CAABBox &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 &m = mat * box.getCenter();
00227 <font class="keyword">const</font> CVector &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 &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<-<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>-<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 &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><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<<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> &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>
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