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CELLPADDING=0 BORDER=0 width=100%><tr><td width=1% valign=middle><img width=6 height=14 hspace=2 vspace=2 src="/inc/img/reddots.gif"></TD> <TD><B>Documentation</B></TD> <TD ALIGN=RIGHT> </td> </tr></table> <!-- Generated by Doxygen 1.2.14 --> <center> <a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="namespaces.html">Namespace List</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="namespacemembers.html">Namespace Members</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> <a class="qindex" href="pages.html">Related Pages</a> <a class="qindexRef" doxygen="_cgi:/cgi-bin/nel-search.cgi" href="/cgi-bin/nel-search.cgi">Search</a> </center> <hr><h1>vector_2f.h</h1><a href="vector__2f_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_VECTOR_2F_H</font> 00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_VECTOR_2F_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 <math.h></font> 00032 <font class="preprocessor">#include "<a class="code" href="stream_8h.html">nel/misc/stream.h</a>"</font> 00033 <font class="preprocessor">#include <string></font> 00034 00035 00036 <font class="keyword">namespace </font>NLMISC 00037 { 00038 00039 00040 <font class="comment">// ***************************************************************************</font> <a name="l00047"></a><a class="code" href="classNLMISC_1_1CVector2f.html">00047</a> <font class="comment"></font><font class="keyword">class </font>CVector2f 00048 { 00049 <font class="keyword">public</font>: 00050 00051 <font class="keyword">public</font>: <font class="comment">// Attributes.</font> <a name="l00052"></a><a class="code" href="classNLMISC_1_1CVector2f.html#m1">00052</a> <font class="keywordtype">float</font> <a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>,<a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>; 00053 00054 <font class="keyword">public</font>: <font class="comment">// Methods.</font> 00056 <font class="comment"></font> 00057 <font class="comment"></font> <a name="l00058"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">00058</a> <font class="comment"> CVector2f() {}</font> <a name="l00060"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z337_1">00060</a> <font class="comment"> CVector2f(float _x, float _y) : x(_x), y(_y) {}</font> <a name="l00062"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z337_2">00062</a> <font class="comment"> CVector2f(const CVector2f &v) : x(v.x), y(v.y) {}</font> <a name="l00064"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z337_3">00064</a> <font class="comment"> CVector2f(const CVector &v) : x(v.x), y(v.y) {}</font> 00065 <font class="comment">// conversion operator</font> <a name="l00066"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z337_4">00066</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_4">operator CVector</a>()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> this-><a class="code" href="classNLMISC_1_1CVector2f.html#z337_5">asVector</a>(); } 00067 <font class="comment">// convert to a CVector by setting z to 0</font> <a name="l00068"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z337_5">00068</a> CVector <a class="code" href="classNLMISC_1_1CVector2f.html#z337_5">asVector</a>()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> CVector(<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>, <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>, 0); } 00070 00072 <a name="l00073"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_0">00073</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="classNLMISC_1_1CVector2f.html#z338_0">operator+=</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) {<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>+=v.x; <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>+=v.y; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} <a name="l00074"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_1">00074</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="classNLMISC_1_1CVector2f.html#z338_1">operator-=</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) {<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>-=v.x; <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>-=v.y; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} <a name="l00075"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_2">00075</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="classNLMISC_1_1CVector2f.html#z338_2">operator*=</a>(<font class="keywordtype">float</font> f) {<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>*=f; <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>*=f; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} <a name="l00076"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_3">00076</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="classNLMISC_1_1CVector2f.html#z338_3">operator/=</a>(<font class="keywordtype">float</font> f) {<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>/=f; <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>/=f; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} <a name="l00077"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_4">00077</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z338_4">operator+</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a>(<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>+v.x, <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>+v.y);} <a name="l00078"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_5">00078</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z338_8">operator-</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a>(<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>-v.x, <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>-v.y);} <a name="l00079"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_6">00079</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z338_6">operator*</a>(<font class="keywordtype">float</font> f)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a>(<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>*f, <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>*f);} <a name="l00080"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_7">00080</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z338_7">operator/</a>(<font class="keywordtype">float</font> f)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a>(<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>/f, <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>/f);} <a name="l00081"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z338_8">00081</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z338_8">operator-</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a>(-<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>, -<a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>);} 00083 00085 00086 <a name="l00087"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z339_0">00087</a> <font class="keywordtype">float</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z338_6">operator*</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>*v.x + <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>*v.y;} <a name="l00089"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z339_1">00089</a> <font class="keywordtype">float</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z339_1">norm</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> (float)sqrt(<a class="code" href="classNLMISC_1_1CVector2f.html#z339_2">sqrnorm</a>());} <a name="l00091"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z339_2">00091</a> <font class="keywordtype">float</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z339_2">sqrnorm</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>*<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a> + <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>*<a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>;} <a name="l00093"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z339_3">00093</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z339_3">normalize</a>() 00094 { 00095 <font class="keywordtype">float</font> f= <a class="code" href="classNLMISC_1_1CVector2f.html#z339_1">norm</a>(); 00096 <font class="keywordflow">if</font>(f>0) 00097 *<font class="keyword">this</font>/=f; 00098 } <a name="l00100"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z339_4">00100</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z339_4">normed</a>()<font class="keyword"> const</font> 00101 <font class="keyword"> </font>{ 00102 <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>= *<font class="keyword">this</font>; 00103 v.normalize(); 00104 <font class="keywordflow">return</font> v; 00105 } 00107 00109 <a name="l00110"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z340_0">00110</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z340_0">set</a>(<font class="keywordtype">float</font> _x, <font class="keywordtype">float</font> _y) {<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>= _x; <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>=_y;} <a name="l00111"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z340_1">00111</a> <font class="keywordtype">bool</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z340_1">operator==</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>==v.x && <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>==v.y;} <a name="l00112"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z340_2">00112</a> <font class="keywordtype">bool</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z340_2">operator!=</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>)<font class="keyword"> const </font>{<font class="keywordflow">return</font> !(*<font class="keyword">this</font>==v);} <a name="l00113"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z340_3">00113</a> <font class="keywordtype">bool</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z340_3">isNull</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>==0.0f && <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>==0.0f;} <a name="l00115"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z340_4">00115</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z340_4">minof</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &a, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &b) 00116 { 00117 <a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>= <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(a.x, b.x); 00118 <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>= <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(a.y, b.y); 00119 } <a name="l00121"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z340_5">00121</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z340_5">maxof</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &a, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &b) 00122 { 00123 <a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>= std::max(a.x, b.x); 00124 <a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>= std::max(a.y, b.y); 00125 } <a name="l00127"></a><a class="code" href="classNLMISC_1_1CVector2f.html#z340_6">00127</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z340_6">serial</a>(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f) {f.<a class="code" href="classNLMISC_1_1IStream.html#a5">serial</a>(<a class="code" href="classNLMISC_1_1CVector2f.html#m0">x</a>,<a class="code" href="classNLMISC_1_1CVector2f.html#m1">y</a>);} 00129 00130 <font class="comment">// friends.</font> 00131 <font class="keyword">friend</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z338_6">operator*</a>(<font class="keywordtype">float</font> f, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &v0); 00132 00134 00135 <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> <a class="code" href="classNLMISC_1_1CVector2f.html#z341_0">Null</a>; 00137 }; 00138 00139 <a name="l00140"></a><a class="code" href="classNLMISC_1_1CVector2f.html#a281">00140</a> <font class="keyword">inline</font> CVector2f <a class="code" href="namespaceNLMISC.html#a273">operator*</a>(<font class="keywordtype">float</font> f, <font class="keyword">const</font> CVector2f &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) 00141 { 00142 <font class="keywordflow">return</font> v*f; 00143 } 00144 00145 <font class="comment">// for map/set insertion</font> 00146 <font class="keyword">inline</font> <font class="keywordtype">bool</font> <a class="code" href="namespaceNLMISC.html#a282">operator < </a>(<font class="keyword">const</font> CVector2f &lhs, <font class="keyword">const</font> CVector2f &rhs) 00147 { 00148 <font class="keywordflow">return</font> (lhs.x != rhs.x) ? lhs.x < rhs.x : lhs.y < rhs.y; 00149 } 00150 00151 } <font class="comment">// NLMISC</font> 00152 00153 00154 <font class="preprocessor">#endif // NL_VECTOR_2F_H</font> 00155 <font class="preprocessor"></font> 00156 <font class="comment">/* End of vector_2f.h */</font> 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