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<hr><h1>ps_plane_basis.h</h1><a href="ps__plane__basis_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 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">#ifndef NL_PS_PLANE_BASIS_H</font>
00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_PS_PLANE_BASIS_H</font>
00028 <font class="preprocessor"></font>
00029 <font class="preprocessor">#include "<a class="code" href="types__nl_8h.html">nel/misc/types_nl.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="vector_8h.html">nel/misc/vector.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="matrix_8h.html">nel/misc/matrix.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="ps__util_8h.html">3d/ps_util.h</a>"</font>
00033
00034
00035 <font class="keyword">namespace </font>NL3D {
00036
00037
00038
00039
00040
<a name="l00045"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html">00045</a> <font class="keyword">struct </font>CPlaneBasis
00046 {
<a name="l00047"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html#m0">00047</a> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> <a class="code" href="structNL3D_1_1CPlaneBasis.html#m0">X</a> ;
<a name="l00048"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html#m1">00048</a> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> <a class="code" href="structNL3D_1_1CPlaneBasis.html#m1">Y</a> ;
00049
00050
00051 <font class="comment">// default ctor</font>
<a name="l00052"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html#a0">00052</a> <a class="code" href="structNL3D_1_1CPlaneBasis.html#a0">CPlaneBasis</a>() {}
00053
00054
00055 <font class="comment">// construct this basis by giving a normal to the plane that contains it</font>
<a name="l00056"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html#a1">00056</a> <a class="code" href="structNL3D_1_1CPlaneBasis.html#a0">CPlaneBasis</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &normal)
00057 {
00058 <a class="code" href="classNLMISC_1_1CMatrix.html">NLMISC::CMatrix</a> mat;
00059 CPSUtil::buildSchmidtBasis(normal, mat) ;
00060 X = mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_7">getI</a>() ;
00061 Y = mat.<a class="code" href="classNLMISC_1_1CMatrix.html#z291_8">getJ</a>() ;
00062 }
00063
00064 <font class="comment">// construct this basis by giving its X and Y vectors</font>
<a name="l00065"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html#a2">00065</a> <a class="code" href="structNL3D_1_1CPlaneBasis.html#a0">CPlaneBasis</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a364">x</a>, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>) : X(x), Y(<a class="code" href="driver__opengl__extension__def_8h.html#a365">y</a>)
00066 {
00067 }
00068
<a name="l00070"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html#a3">00070</a> <a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a> <a class="code" href="structNL3D_1_1CPlaneBasis.html#a3">getNormal</a>(<font class="keywordtype">void</font>)<font class="keyword"> const</font>
00071 <font class="keyword"> </font>{
00072 <font class="keywordflow">return</font> X ^ Y ;
00073 }
00074
00075
<a name="l00076"></a><a class="code" href="structNL3D_1_1CPlaneBasis.html#a4">00076</a> <font class="keywordtype">void</font> <a class="code" href="structNL3D_1_1CPlaneBasis.html#a4">serial</a>(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f) <font class="keywordflow">throw</font>(NLMISC::EStream)
00077 {
00078 f.serial(X, Y) ;
00079 }
00080 } ;
00081
00082
00083 <font class="comment">// for map insertion</font>
00084
00085 <font class="keyword">inline</font> <font class="keywordtype">bool</font> <a class="code" href="namespaceNL3D.html#a424">operator<</a>(<font class="keyword">const</font> CPlaneBasis &p1, <font class="keyword">const</font> CPlaneBasis &p2)
00086 {
00087 <font class="keywordflow">if</font> (p1.X < p2.X) <font class="keywordflow">return</font> <font class="keyword">true</font> ;
00088 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (p1.X == p2.X) <font class="keywordflow">return</font> <font class="keyword">false</font> ;
00089 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (p1.Y < p2.Y) <font class="keywordflow">return</font> <font class="keyword">true</font> ;
00090 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (p1.X == p2.Y) <font class="keywordflow">return</font> <font class="keyword">false</font> ;
00091 <font class="keywordflow">else</font> <font class="keywordflow">return</font> <font class="keyword">true</font> ;
00092 }
00093
00094
00095
00096
00097
00098
00099 } <font class="comment">// NL3D</font>
00100
00101
00102 <font class="preprocessor">#endif // NL_PS_PLANE_BASIS_H</font>
00103 <font class="preprocessor"></font>
00104 <font class="comment">/* End of ps_plane_basis.h */</font>
</pre></div>
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