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<h1>FXMat3f.h</h1><div class="fragment"><pre>00001 <span class="comment">/********************************************************************************</span>
00002 <span class="comment">*                                                                               *</span>
00003 <span class="comment">*            S i n g l e - P r e c i s i o n   3 x 3   M a t r i x              *</span>
00004 <span class="comment">*                                                                               *</span>
00005 <span class="comment">*********************************************************************************</span>
00006 <span class="comment">* Copyright (C) 2003,2004 by Jeroen van der Zijp.   All Rights Reserved.        *</span>
00007 <span class="comment">*********************************************************************************</span>
00008 <span class="comment">* This library is free software; you can redistribute it and/or                 *</span>
00009 <span class="comment">* modify it under the terms of the GNU Lesser General Public                    *</span>
00010 <span class="comment">* License as published by the Free Software Foundation; either                  *</span>
00011 <span class="comment">* version 2.1 of the License, or (at your option) any later version.            *</span>
00012 <span class="comment">*                                                                               *</span>
00013 <span class="comment">* This library is distributed in the hope that it will be useful,               *</span>
00014 <span class="comment">* but WITHOUT ANY WARRANTY; without even the implied warranty of                *</span>
00015 <span class="comment">* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU             *</span>
00016 <span class="comment">* Lesser General Public License for more details.                               *</span>
00017 <span class="comment">*                                                                               *</span>
00018 <span class="comment">* You should have received a copy of the GNU Lesser General Public              *</span>
00019 <span class="comment">* License along with this library; if not, write to the Free Software           *</span>
00020 <span class="comment">* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *</span>
00021 <span class="comment">*********************************************************************************</span>
00022 <span class="comment">* $Id: FXMat3f.h,v 1.5 2004/02/08 17:17:33 fox Exp $                            *</span>
00023 <span class="comment">********************************************************************************/</span>
00024 <span class="preprocessor">#ifndef FXMAT3F_H</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#define FXMAT3F_H</span>
00026 <span class="preprocessor"></span>
00027 
00028 <span class="keyword">namespace </span>FX {
00029 
00030 <span class="comment"></span>
00031 <span class="comment">/// Single-precision 3x3 matrix</span>
<a name="l00032"></a><a class="code" href="classFX_1_1FXMat3f.html">00032</a> <span class="comment"></span><span class="keyword">class </span>FXAPI FXMat3f {
00033 <span class="keyword">protected</span>:
00034   <a class="code" href="classFX_1_1FXVec3f.html">FXVec3f</a> m[3];
<a name="l00035"></a><a class="code" href="classFX_1_1FXMat3f.html#a0">00035</a> <span class="keyword">public</span>:<span class="comment"></span>
00036 <span class="comment">  /// Constructors</span>
00037 <span class="comment"></span>  FXMat3f(){}
00038   FXMat3f(FXfloat w);
00039   FXMat3f(FXfloat a00,FXfloat a01,FXfloat a02,
00040           FXfloat a10,FXfloat a11,FXfloat a12,
00041           FXfloat a20,FXfloat a21,FXfloat a22);
00042   FXMat3f(<span class="keyword">const</span> FXVec3f&amp; a,<span class="keyword">const</span> FXVec3f&amp; b,<span class="keyword">const</span> FXVec3f&amp; c);
00043   FXMat3f(<span class="keyword">const</span> FXMat3f&amp; other);
00044 <span class="comment"></span>
00045 <span class="comment">  /// Assignment operators</span>
00046 <span class="comment"></span>  FXMat3f&amp; operator=(<span class="keyword">const</span> FXMat3f&amp; other);
00047   FXMat3f&amp; operator=(FXfloat w);
00048   FXMat3f&amp; operator+=(<span class="keyword">const</span> FXMat3f&amp; w);
00049   FXMat3f&amp; operator-=(<span class="keyword">const</span> FXMat3f&amp; w);
00050   FXMat3f&amp; operator*=(FXfloat w);
00051   FXMat3f&amp; operator*=(<span class="keyword">const</span> FXMat3f&amp; w);
00052   FXMat3f&amp; operator/=(FXfloat w);
<a name="l00053"></a><a class="code" href="classFX_1_1FXMat3f.html#a12">00053</a> <span class="comment"></span>
00054 <span class="comment">  /// Indexing</span>
00055 <span class="comment"></span>  <a class="code" href="classFX_1_1FXVec3f.html">FXVec3f</a>&amp; operator[](FXint i){<span class="keywordflow">return</span> m[i];}
00056   <span class="keyword">const</span> FXVec3f&amp; operator[](FXint i)<span class="keyword"> const </span>{<span class="keywordflow">return</span> m[i];}
<a name="l00057"></a><a class="code" href="classFX_1_1FXMat3f.html#a14">00057</a> <span class="comment"></span>
00058 <span class="comment">  /// Conversion</span>
00059 <span class="comment"></span>  operator FXfloat*(){<span class="keywordflow">return</span> m[0];}
00060   operator const FXfloat*()<span class="keyword"> const </span>{<span class="keywordflow">return</span> m[0];}
00061 <span class="comment"></span>
00062 <span class="comment">  /// Other operators</span>
00063 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXMat3f operator+(<span class="keyword">const</span> FXMat3f&amp; a,<span class="keyword">const</span> FXMat3f&amp; b);
00064   <span class="keyword">friend</span> FXAPI FXMat3f operator-(<span class="keyword">const</span> FXMat3f&amp; a,<span class="keyword">const</span> FXMat3f&amp; b);
00065   <span class="keyword">friend</span> FXAPI FXMat3f operator-(<span class="keyword">const</span> FXMat3f&amp; a);
00066   <span class="keyword">friend</span> FXAPI FXMat3f operator*(<span class="keyword">const</span> FXMat3f&amp; a,<span class="keyword">const</span> FXMat3f&amp; b);
00067   <span class="keyword">friend</span> FXAPI FXMat3f operator*(FXfloat x,<span class="keyword">const</span> FXMat3f&amp; a);
00068   <span class="keyword">friend</span> FXAPI FXMat3f operator*(<span class="keyword">const</span> FXMat3f&amp; a,FXfloat x);
00069   <span class="keyword">friend</span> FXAPI FXMat3f operator/(<span class="keyword">const</span> FXMat3f&amp; a,FXfloat x);
00070   <span class="keyword">friend</span> FXAPI FXMat3f operator/(FXfloat x,<span class="keyword">const</span> FXMat3f&amp; a);
00071 <span class="comment"></span>
00072 <span class="comment">  /// Multiply matrix and vector</span>
00073 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXVec3f operator*(<span class="keyword">const</span> FXVec3f&amp; v,<span class="keyword">const</span> FXMat3f&amp; m);
00074   <span class="keyword">friend</span> FXAPI FXVec3f operator*(<span class="keyword">const</span> FXMat3f&amp; a,<span class="keyword">const</span> FXVec3f&amp; v);
00075 <span class="comment"></span>
00076 <span class="comment">  /// Mutiply matrix and vector, for non-projective matrix</span>
00077 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXVec2f operator*(<span class="keyword">const</span> FXVec2f&amp; v,<span class="keyword">const</span> FXMat3f&amp; m);
00078   <span class="keyword">friend</span> FXAPI FXVec2f operator*(<span class="keyword">const</span> FXMat3f&amp; a,<span class="keyword">const</span> FXVec2f&amp; v);
00079 <span class="comment"></span>
00080 <span class="comment">  /// Set identity matrix</span>
00081 <span class="comment"></span>  FXMat3f&amp; eye();
00082 <span class="comment"></span>
00083 <span class="comment">  /// Multiply by rotation of phi</span>
00084 <span class="comment"></span>  FXMat3f&amp; rot(FXfloat c,FXfloat s);
00085   FXMat3f&amp; rot(FXfloat phi);
00086 <span class="comment"></span>
00087 <span class="comment">  /// Multiply by translation</span>
00088 <span class="comment"></span>  FXMat3f&amp; trans(FXfloat tx,FXfloat ty);
00089 <span class="comment"></span>
00090 <span class="comment">  /// Multiply by scaling</span>
00091 <span class="comment"></span>  FXMat3f&amp; scale(FXfloat sx,FXfloat sy);
00092   FXMat3f&amp; scale(FXfloat s);
00093 <span class="comment"></span>
00094 <span class="comment">  /// Determinant</span>
00095 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXfloat det(<span class="keyword">const</span> FXMat3f&amp; m);
00096 <span class="comment"></span>
00097 <span class="comment">  /// Transpose</span>
00098 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXMat3f transpose(<span class="keyword">const</span> FXMat3f&amp; m);
00099 <span class="comment"></span>
00100 <span class="comment">  /// Invert</span>
00101 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXMat3f invert(<span class="keyword">const</span> FXMat3f&amp; m);
00102 <span class="comment"></span>
00103 <span class="comment">  /// Save to a stream</span>
00104 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXStream&amp; operator&lt;&lt;(FXStream&amp; store,<span class="keyword">const</span> FXMat3f&amp; m);
00105 <span class="comment"></span>
00106 <span class="comment">  /// Load from a stream</span>
00107 <span class="comment"></span>  <span class="keyword">friend</span> FXAPI FXStream&amp; operator&gt;&gt;(FXStream&amp; store,FXMat3f&amp; m);
00108   };
00109 
00110 }
00111 
00112 <span class="preprocessor">#endif</span>
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