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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<hr><h1>vector_2d.h</h1><a href="vector__2d_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_2D_H</font> +00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_VECTOR_2D_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 +00031 <font class="preprocessor">#include <math.h></font> +00032 <font class="preprocessor">#include <string></font> +00033 +00034 <font class="preprocessor">#include "<a class="code" href="stream_8h.html">nel/misc/stream.h</a>"</font> +00035 <font class="preprocessor">#include "<a class="code" href="vector__2f_8h.html">nel/misc/vector_2f.h</a>"</font> +00036 +00037 <font class="keyword">namespace </font>NLMISC +00038 { +00039 +00040 +00041 <font class="comment">// ***************************************************************************</font> +<a name="l00048"></a><a class="code" href="classNLMISC_1_1CVector2d.html">00048</a> <font class="comment"></font><font class="keyword">class </font>CVector2d +00049 { +00050 <font class="keyword">public</font>: +00051 +00052 <font class="keyword">public</font>: <font class="comment">// Attributes.</font> +<a name="l00053"></a><a class="code" href="classNLMISC_1_1CVector2d.html#m1">00053</a> <font class="keywordtype">double</font> <a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>,<a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>; +00054 +00055 <font class="keyword">public</font>: <font class="comment">// Methods.</font> +00057 <font class="comment"></font> +00058 <font class="comment"></font> +<a name="l00059"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">00059</a> <font class="comment"> CVector2d() {}</font> +<a name="l00061"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z333_1">00061</a> <font class="comment"> CVector2d(double _x, double _y) : x(_x), y(_y) {}</font> +<a name="l00063"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z333_2">00063</a> <font class="comment"> CVector2d(const CVector2d &v) : x(v.x), y(v.y) {}</font> +<a name="l00065"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z333_3">00065</a> <font class="comment"> CVector2d(const CVector2f &v) : x(v.x), y(v.y) {}</font> +00066 +00068 +00070 +<a name="l00071"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_0">00071</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &<a class="code" href="classNLMISC_1_1CVector2d.html#z334_0">operator+=</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) {<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>+=v.x; <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>+=v.y; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} +<a name="l00072"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_1">00072</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &<a class="code" href="classNLMISC_1_1CVector2d.html#z334_1">operator-=</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) {<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>-=v.x; <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>-=v.y; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} +<a name="l00073"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_2">00073</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &<a class="code" href="classNLMISC_1_1CVector2d.html#z334_2">operator*=</a>(<font class="keywordtype">double</font> f) {<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>*=f; <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>*=f; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} +<a name="l00074"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_3">00074</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &<a class="code" href="classNLMISC_1_1CVector2d.html#z334_3">operator/=</a>(<font class="keywordtype">double</font> f) {<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>/=f; <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>/=f; <font class="keywordflow">return</font> *<font class="keyword">this</font>;} +<a name="l00075"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_4">00075</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z334_4">operator+</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</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_1CVector2d.html#z333_0">CVector2d</a>(<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>+v.x, <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>+v.y);} +<a name="l00076"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_5">00076</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z334_8">operator-</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</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_1CVector2d.html#z333_0">CVector2d</a>(<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>-v.x, <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>-v.y);} +<a name="l00077"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_6">00077</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z334_6">operator*</a>(<font class="keywordtype">double</font> f)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a>(<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>*f, <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>*f);} +<a name="l00078"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_7">00078</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z334_7">operator/</a>(<font class="keywordtype">double</font> f)<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a>(<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>/f, <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>/f);} +<a name="l00079"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z334_8">00079</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z334_8">operator-</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a>(-<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>, -<a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>);} +00081 +00083 +00084 +<a name="l00085"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z335_0">00085</a> <font class="keywordtype">double</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z334_6">operator*</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</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_1CVector2d.html#m0">x</a>*v.x + <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>*v.y;} +<a name="l00087"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z335_1">00087</a> <font class="keywordtype">double</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z335_1">norm</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> (double)sqrt(<a class="code" href="classNLMISC_1_1CVector2d.html#z335_2">sqrnorm</a>());} +<a name="l00089"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z335_2">00089</a> <font class="keywordtype">double</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z335_2">sqrnorm</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>*<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a> + <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>*<a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>;} +<a name="l00091"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z335_3">00091</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z335_3">normalize</a>() +00092 { +00093 <font class="keywordtype">double</font> f= <a class="code" href="classNLMISC_1_1CVector2d.html#z335_1">norm</a>(); +00094 <font class="keywordflow">if</font>(f>0) +00095 *<font class="keyword">this</font>/=f; +00096 } +<a name="l00098"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z335_4">00098</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z335_4">normed</a>()<font class="keyword"> const</font> +00099 <font class="keyword"> </font>{ +00100 <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>= *<font class="keyword">this</font>; +00101 v.normalize(); +00102 <font class="keywordflow">return</font> v; +00103 } +00105 +00107 +<a name="l00108"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z336_0">00108</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z336_0">set</a>(<font class="keywordtype">double</font> _x, <font class="keywordtype">double</font> _y) {<a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>= _x; <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>=_y;} +<a name="l00109"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z336_1">00109</a> <font class="keywordtype">bool</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z336_1">operator==</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</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_1CVector2d.html#m0">x</a>==v.x && <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>==v.y;} +<a name="l00110"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z336_2">00110</a> <font class="keywordtype">bool</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z336_2">operator!=</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</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="l00111"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z336_3">00111</a> <font class="keywordtype">bool</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z336_3">isNull</a>()<font class="keyword"> const </font>{<font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>==0.0f && <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>==0.0f;} +<a name="l00113"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z336_4">00113</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z336_4">minof</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &a, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &b) +00114 { +00115 <a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>= <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(a.x, b.x); +00116 <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>= <a class="code" href="bit__set_8cpp.html#a0">std::min</a>(a.y, b.y); +00117 } +<a name="l00119"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z336_5">00119</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z336_5">maxof</a>(<font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &a, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &b) +00120 { +00121 <a class="code" href="classNLMISC_1_1CVector2d.html#m0">x</a>= std::max(a.x, b.x); +00122 <a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>= std::max(a.y, b.y); +00123 } +<a name="l00125"></a><a class="code" href="classNLMISC_1_1CVector2d.html#z336_6">00125</a> <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z336_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_1CVector2d.html#m0">x</a>,<a class="code" href="classNLMISC_1_1CVector2d.html#m1">y</a>);} +00127 +00128 <font class="comment">// friends.</font> +00129 <font class="keyword">friend</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> <a class="code" href="classNLMISC_1_1CVector2d.html#z334_6">operator*</a>(<font class="keywordtype">double</font> f, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2d.html#z333_0">CVector2d</a> &v0); +00130 +00131 }; +00132 +00133 +<a name="l00134"></a><a class="code" href="classNLMISC_1_1CVector2d.html#a280">00134</a> <font class="keyword">inline</font> CVector2d <a class="code" href="namespaceNLMISC.html#a273">operator*</a>(<font class="keywordtype">double</font> f, <font class="keyword">const</font> CVector2d &<a class="code" href="driver__opengl__extension__def_8h.html#a368">v</a>) +00135 { +00136 <font class="keywordflow">return</font> v*f; +00137 } +00138 +00139 +00140 } <font class="comment">// NLMISC</font> +00141 +00142 +00143 <font class="preprocessor">#endif // NL_VECTOR_2D_H</font> +00144 <font class="preprocessor"></font> +00145 <font class="comment">/* End of vector_2d.h */</font> +</pre></div> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |