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<hr><h1>matrix3.h</h1><div class="fragment"><pre>00001 <font class="comment">//</font>
00002 <font class="comment">// matrix3.h</font>
00003 <font class="comment">//</font>
00004 <font class="comment">// Copyright (C) 1996 Limit Point Systems, Inc.</font>
00005 <font class="comment">//</font>
00006 <font class="comment">// Author: Curtis Janssen &lt;cljanss@limitpt.com&gt;</font>
00007 <font class="comment">// Maintainer: LPS</font>
00008 <font class="comment">//</font>
00009 <font class="comment">// This file is part of the SC Toolkit.</font>
00010 <font class="comment">//</font>
00011 <font class="comment">// The SC Toolkit is free software; you can redistribute it and/or modify</font>
00012 <font class="comment">// it under the terms of the GNU Library General Public License as published by</font>
00013 <font class="comment">// the Free Software Foundation; either version 2, or (at your option)</font>
00014 <font class="comment">// any later version.</font>
00015 <font class="comment">//</font>
00016 <font class="comment">// The SC Toolkit is distributed in the hope that it will be useful,</font>
00017 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00018 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</font>
00019 <font class="comment">// GNU Library General Public License for more details.</font>
00020 <font class="comment">//</font>
00021 <font class="comment">// You should have received a copy of the GNU Library General Public License</font>
00022 <font class="comment">// along with the SC Toolkit; see the file COPYING.LIB.  If not, write to</font>
00023 <font class="comment">// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.</font>
00024 <font class="comment">//</font>
00025 <font class="comment">// The U.S. Government is granted a limited license as per AL 91-7.</font>
00026 <font class="comment">//</font>
00027 
00028 <font class="preprocessor">#ifndef _math_scmat_matrix3_h</font>
00029 <font class="preprocessor"></font><font class="preprocessor">#define _math_scmat_matrix3_h</font>
00030 <font class="preprocessor"></font><font class="preprocessor">#ifdef __GNUC__</font>
00031 <font class="preprocessor"></font><font class="preprocessor">#pragma interface</font>
00032 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00033 <font class="preprocessor"></font>
00034 <font class="preprocessor">#include &lt;iostream&gt;</font>
00035 <font class="preprocessor">#include &lt;math.h&gt;</font>
00036 
00037 <font class="preprocessor">#include &lt;math/scmat/vector3.h&gt;</font>
00038 
00039 <font class="keyword">namespace </font>sc {
00040 
00041 <font class="keyword">class </font>RefSCmatrix;
00042 
00043 <font class="keyword">class </font>SCMatrix3
00044 {
00045   <font class="keyword">private</font>:
00046     <font class="keywordtype">double</font> _m[9];
00047   <font class="keyword">public</font>:
00048     SCMatrix3()<font class="keyword"> </font>{}
00049     SCMatrix3(<font class="keyword">const</font> SCMatrix3&amp;);
00050 <font class="preprocessor">#if 0</font>
00051 <font class="preprocessor"></font>    SCMatrix3(<font class="keyword">const</font> RefSCMatrix3&amp;);
00052 <font class="preprocessor">#endif</font>
00053 <font class="preprocessor"></font>    SCMatrix3(<font class="keywordtype">double</font> x[9]);
00054     SCMatrix3(<font class="keyword">const</font> SCVector3&amp;p1, <font class="keyword">const</font> SCVector3&amp;p2, <font class="keyword">const</font> SCVector3&amp;p3);
00055     ~SCMatrix3()<font class="keyword"> </font>{}
00056     SCMatrix3&amp; operator=(<font class="keyword">const</font> SCMatrix3&amp;);
00057     SCMatrix3 operator*(<font class="keywordtype">double</font>) <font class="keyword">const</font>;
00058     SCMatrix3 operator*(<font class="keyword">const</font> SCMatrix3&amp;) <font class="keyword">const</font>;
00059     SCVector3 operator*(<font class="keyword">const</font> SCVector3&amp;v)<font class="keyword"> const </font>{
00060         SCVector3 result;
00061         result._v[0] = _m[0+3*0]*v._v[0]+_m[0+3*1]*v._v[1]+_m[0+3*2]*v._v[2];
00062         result._v[1] = _m[1+3*0]*v._v[0]+_m[1+3*1]*v._v[1]+_m[1+3*2]*v._v[2];
00063         result._v[2] = _m[2+3*0]*v._v[0]+_m[2+3*1]*v._v[1]+_m[2+3*2]*v._v[2];
00064         <font class="keywordflow">return</font> result;
00065       }
00066     SCMatrix3 operator+(<font class="keyword">const</font> SCMatrix3&amp;) <font class="keyword">const</font>;
00067     SCMatrix3 operator-(<font class="keyword">const</font> SCMatrix3&amp;) <font class="keyword">const</font>;
00068     <font class="keywordtype">double</font>&amp; elem(<font class="keywordtype">int</font> i, <font class="keywordtype">int</font> j)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _m[i+3*j]; }
00069     <font class="keyword">const</font> <font class="keywordtype">double</font>&amp; elem(<font class="keywordtype">int</font> i, <font class="keywordtype">int</font> j)<font class="keyword"> const </font>{ <font class="keywordflow">return</font> _m[i+3*j]; }
00070     <font class="keywordtype">double</font>&amp; elem(<font class="keywordtype">int</font> i)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _m[i]; }
00071     <font class="keyword">const</font> <font class="keywordtype">double</font>&amp; elem(<font class="keywordtype">int</font> i)<font class="keyword"> const </font>{ <font class="keywordflow">return</font> _m[i]; }
00072     <font class="keywordtype">double</font>&amp; operator[] (<font class="keywordtype">int</font> i)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _m[i]; }
00073     <font class="keyword">const</font> <font class="keywordtype">double</font>&amp; operator[] (<font class="keywordtype">int</font> i)<font class="keyword"> const </font>{ <font class="keywordflow">return</font> _m[i]; }
00074     <font class="keywordtype">double</font>&amp; operator() (<font class="keywordtype">int</font> i, <font class="keywordtype">int</font> j)<font class="keyword"> </font>{ <font class="keywordflow">return</font> _m[i+3*j]; }
00075     <font class="keyword">const</font> <font class="keywordtype">double</font>&amp; operator() (<font class="keywordtype">int</font> i, <font class="keywordtype">int</font> j)<font class="keyword"> const </font>{ <font class="keywordflow">return</font> _m[i+3*j]; }
00076     <font class="keyword">const</font> <font class="keywordtype">double</font>* data()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> _m; }
00077     <font class="keywordtype">void</font> print(std::ostream&amp; =ExEnv::out0()) <font class="keyword">const</font>;
00078 };
00079 SCMatrix3 operator*(<font class="keywordtype">double</font>,<font class="keyword">const</font> SCMatrix3&amp;);
00080 SCMatrix3 rotation_mat(<font class="keyword">const</font> SCVector3&amp;, <font class="keyword">const</font> SCVector3&amp;, <font class="keywordtype">double</font> theta);
00081 SCMatrix3 rotation_mat(<font class="keyword">const</font> SCVector3&amp;, <font class="keyword">const</font> SCVector3&amp;);
00082 SCMatrix3 rotation_mat(<font class="keyword">const</font> SCVector3&amp;, <font class="keywordtype">double</font> theta);
00083 SCMatrix3 reflection_mat(<font class="keyword">const</font> SCVector3&amp;);
00084 <font class="keyword">inline</font> <font class="keywordtype">int</font> delta(<font class="keywordtype">int</font> i, <font class="keywordtype">int</font> j)<font class="keyword"> </font>{ <font class="keywordflow">return</font> i==j; }
00085 
00086 }
00087 
00088 <font class="preprocessor">#endif</font>
00089 <font class="preprocessor"></font>
00090 <font class="comment">// Local Variables:</font>
00091 <font class="comment">// mode: c++</font>
00092 <font class="comment">// c-file-style: "CLJ"</font>
00093 <font class="comment">// End:</font>
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