<html> <head> <link rel="stylesheet" href="page.css" type="text/css"> <title>fox-toolkit.org - Documentation</title> </head> <body bgcolor=#ffffff link=#990033 vlink=#990033 alink=#990033 text=#000000> <font face='verdana,sans-serif' size=2 > <!---- TOPIC TITLE WITH LOGO---> <table border=0 cellpadding= cellspacing=2 width=100% ><tr><td><a href='http://www.fox-toolkit.org/doc.html'><img src='../art/foxlogo_small.jpg' border=0></a></td><td width=100% valign=bottom><font face='verdana,sans-serif' size=2 ><b> <a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="classes.html">Alphabetical List</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <br><img src='../art/line.gif' width=100% height=1></b></font></td></tr></table> <p> <!--- TOPIC TITLE WITH LOGO ---> <!-- Generated by Doxygen 1.3.3 --> <h1>FXVec2f.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 2 - E l e m e n t V e c t o r *</span> 00004 <span class="comment">* *</span> 00005 <span class="comment">*********************************************************************************</span> 00006 <span class="comment">* Copyright (C) 1994,2004 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: FXVec2f.h,v 1.2 2004/02/08 17:17:34 fox Exp $ *</span> 00023 <span class="comment">********************************************************************************/</span> 00024 <span class="preprocessor">#ifndef FXVEC2F_H</span> 00025 <span class="preprocessor"></span><span class="preprocessor">#define FXVEC2F_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 2-element vector</span> <a name="l00032"></a><a class="code" href="classFX_1_1FXVec2f.html">00032</a> <span class="comment"></span><span class="keyword">class </span>FXAPI FXVec2f { 00033 <span class="keyword">public</span>: 00034 FXfloat x; 00035 FXfloat y; 00036 <span class="keyword">public</span>: 00037 <span class="comment"></span> 00038 <span class="comment"> /// Default constructor</span> <a name="l00039"></a><a class="code" href="classFX_1_1FXVec2f.html#a0">00039</a> <span class="comment"></span> FXVec2f(){} 00040 <span class="comment"></span> 00041 <span class="comment"> /// Copy constructor</span> <a name="l00042"></a><a class="code" href="classFX_1_1FXVec2f.html#a1">00042</a> <span class="comment"></span> FXVec2f(<span class="keyword">const</span> FXVec2f& v){x=v.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>;y=v.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>;} 00043 00044 <span class="comment">// Initialize from array of floats</span> 00045 FXVec2f(<span class="keyword">const</span> FXfloat v[]){x=v[0];y=v[1];} 00046 <span class="comment"></span> 00047 <span class="comment"> /// Initialize with components</span> <a name="l00048"></a><a class="code" href="classFX_1_1FXVec2f.html#a3">00048</a> <span class="comment"></span> FXVec2f(FXfloat xx,FXfloat yy){x=xx;y=yy;} 00049 <span class="comment"></span> 00050 <span class="comment"> /// Return a non-const reference to the ith element</span> <a name="l00051"></a><a class="code" href="classFX_1_1FXVec2f.html#a4">00051</a> <span class="comment"></span> FXfloat& operator[](FXint i){<span class="keywordflow">return</span> (&x)[i];} 00052 <span class="comment"></span> 00053 <span class="comment"> /// Return a const reference to the ith element</span> <a name="l00054"></a><a class="code" href="classFX_1_1FXVec2f.html#a5">00054</a> <span class="comment"></span> <span class="keyword">const</span> FXfloat& operator[](FXint i)<span class="keyword"> const </span>{<span class="keywordflow">return</span> (&x)[i];} 00055 <span class="comment"></span> 00056 <span class="comment"> /// Assignment</span> <a name="l00057"></a><a class="code" href="classFX_1_1FXVec2f.html#a6">00057</a> <span class="comment"></span> FXVec2f& operator=(<span class="keyword">const</span> FXVec2f& v){x=v.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>;y=v.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>;<span class="keywordflow">return</span> *<span class="keyword">this</span>;} 00058 <span class="comment"></span> 00059 <span class="comment"> /// Assignment from array of floats</span> <a name="l00060"></a><a class="code" href="classFX_1_1FXVec2f.html#a7">00060</a> <span class="comment"></span> FXVec2f& operator=(<span class="keyword">const</span> FXfloat v[]){x=v[0];y=v[1];<span class="keywordflow">return</span> *<span class="keyword">this</span>;} 00061 <span class="comment"></span> 00062 <span class="comment"> /// Assigning operators</span> <a name="l00063"></a><a class="code" href="classFX_1_1FXVec2f.html#a8">00063</a> <span class="comment"></span> FXVec2f& operator*=(FXfloat n){x*=n;y*=n;<span class="keywordflow">return</span> *<span class="keyword">this</span>;} 00064 FXVec2f& operator/=(FXfloat n){x/=n;y/=n;<span class="keywordflow">return</span> *<span class="keyword">this</span>;} 00065 FXVec2f& operator+=(<span class="keyword">const</span> FXVec2f& v){x+=v.x;y+=v.y;<span class="keywordflow">return</span> *<span class="keyword">this</span>;} 00066 FXVec2f& operator-=(<span class="keyword">const</span> FXVec2f& v){x-=v.x;y-=v.y;<span class="keywordflow">return</span> *<span class="keyword">this</span>;} 00067 <span class="comment"></span> 00068 <span class="comment"> /// Conversions</span> <a name="l00069"></a><a class="code" href="classFX_1_1FXVec2f.html#a12">00069</a> <span class="comment"></span> operator FXfloat*(){<span class="keywordflow">return</span> &x;} 00070 operator const FXfloat*()<span class="keyword"> const </span>{<span class="keywordflow">return</span> &x;} 00071 <span class="comment"></span> 00072 <span class="comment"> /// Unary</span> <a name="l00073"></a><a class="code" href="classFX_1_1FXVec2f.html#n0">00073</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec2f operator+(<span class="keyword">const</span> FXVec2f& v){<span class="keywordflow">return</span> v;} 00074 <span class="keyword">friend</span> FXAPI FXVec2f operator-(<span class="keyword">const</span> FXVec2f& v){<span class="keywordflow">return</span> FXVec2f(-v.x,-v.y);} 00075 <span class="comment"></span> 00076 <span class="comment"> /// Adding</span> <a name="l00077"></a><a class="code" href="classFX_1_1FXVec2f.html#n2">00077</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec2f operator+(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> FXVec2f(a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>+b.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>,a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>+b.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>);} 00078 <span class="keyword">friend</span> FXAPI FXVec2f operator-(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> FXVec2f(a.x-b.x,a.y-b.y);} 00079 <span class="comment"></span> 00080 <span class="comment"> /// Scaling</span> <a name="l00081"></a><a class="code" href="classFX_1_1FXVec2f.html#n4">00081</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec2f operator*(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> FXVec2f(a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>*n,a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>*n);} 00082 <span class="keyword">friend</span> FXAPI FXVec2f operator*(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> FXVec2f(n*a.x,n*a.y);} 00083 <span class="keyword">friend</span> FXAPI FXVec2f operator/(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> FXVec2f(a.x/n,a.y/n);} 00084 <span class="keyword">friend</span> FXAPI FXVec2f operator/(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> FXVec2f(n/a.x,n/a.y);} 00085 <span class="comment"></span> 00086 <span class="comment"> /// Dot product</span> <a name="l00087"></a><a class="code" href="classFX_1_1FXVec2f.html#n8">00087</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXfloat operator*(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>*b.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>+a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>*b.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>;} 00088 <span class="comment"></span> 00089 <span class="comment"> /// Test if zero</span> <a name="l00090"></a><a class="code" href="classFX_1_1FXVec2f.html#n9">00090</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!(<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>==0.0f && a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>==0.0f;} 00091 <span class="comment"></span> 00092 <span class="comment"> /// Equality tests</span> <a name="l00093"></a><a class="code" href="classFX_1_1FXVec2f.html#n10">00093</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator==(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>==b.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a> && a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>==b.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>;} 00094 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!=(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> a.x!=b.x || a.y!=b.y;} 00095 00096 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator==(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> a.x==n && a.y==n;} 00097 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!=(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> a.x!=n || a.y!=n;} 00098 00099 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator==(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> n==a.x && n==a.y;} 00100 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator!=(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> n!=a.x || n!=a.y;} 00101 <span class="comment"></span> 00102 <span class="comment"> /// Inequality tests</span> <a name="l00103"></a><a class="code" href="classFX_1_1FXVec2f.html#n16">00103</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a><b.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a> && a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a><b.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>;} 00104 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<=(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> a.x<=b.x && a.y<=b.y;} 00105 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> a.x>b.x && a.y>b.y;} 00106 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>=(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> a.x>=b.x && a.y>=b.y;} 00107 00108 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> a.x<n && a.y<n;} 00109 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<=(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> a.x<=n && a.y<=n;} 00110 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> a.x>n && a.y>n;} 00111 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>=(<span class="keyword">const</span> FXVec2f& a,FXfloat n){<span class="keywordflow">return</span> a.x>=n && a.y>=n;} 00112 00113 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> n<a.x && n<a.y;} 00114 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator<=(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> n<=a.x && n<=a.y;} 00115 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> n>a.x && n>a.y;} 00116 <span class="keyword">friend</span> FXAPI <span class="keywordtype">int</span> operator>=(FXfloat n,<span class="keyword">const</span> FXVec2f& a){<span class="keywordflow">return</span> n>=a.x && n>=a.y;} 00117 <span class="comment"></span> 00118 <span class="comment"> /// Length and square of length</span> <a name="l00119"></a><a class="code" href="classFX_1_1FXVec2f.html#n28">00119</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXfloat len2(<span class="keyword">const</span> FXVec2f& a){ <span class="keywordflow">return</span> a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>*a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>+a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>*a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>; } 00120 <span class="keyword">friend</span> FXAPI FXfloat len(<span class="keyword">const</span> FXVec2f& a){ <span class="keywordflow">return</span> sqrtf(len2(a)); } 00121 <span class="comment"></span> 00122 <span class="comment"> /// Normalize vector</span> 00123 <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec2f normalize(<span class="keyword">const</span> FXVec2f& a); 00124 <span class="comment"></span> 00125 <span class="comment"> /// Lowest or highest components</span> <a name="l00126"></a><a class="code" href="classFX_1_1FXVec2f.html#n31">00126</a> <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXVec2f lo(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> FXVec2f(FXMIN(a.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>,b.<a class="code" href="classFX_1_1FXVec2f.html#o0">x</a>),FXMIN(a.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>,b.<a class="code" href="classFX_1_1FXVec2f.html#o1">y</a>));} 00127 <span class="keyword">friend</span> FXAPI FXVec2f hi(<span class="keyword">const</span> FXVec2f& a,<span class="keyword">const</span> FXVec2f& b){<span class="keywordflow">return</span> FXVec2f(FXMAX(a.x,b.x),FXMAX(a.y,b.y));} 00128 <span class="comment"></span> 00129 <span class="comment"> /// Save vector to a stream</span> 00130 <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXStream& operator<<(FXStream& store,<span class="keyword">const</span> FXVec2f& v); 00131 <span class="comment"></span> 00132 <span class="comment"> /// Load vector from a stream</span> 00133 <span class="comment"></span> <span class="keyword">friend</span> FXAPI FXStream& operator>>(FXStream& store,FXVec2f& v); 00134 }; 00135 00136 } 00137 00138 <span class="preprocessor">#endif</span> </pre></div></font> <!--- COPYRIGHT --> <p> <table width=100% cellpadding=0 cellspacing=0><tr><td width=100% valign=top id=HEADLINE align=right> <img src='../art/line.gif' width=100% height=1><font size=-1> Copyright © 1997-2004 Jeroen van der Zijp</font> </td></tr></table> </p> <!--- COPYRIGHT --> </body> </html>