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<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 &lt;math.h&gt;</font>
00032 <font class="preprocessor">#include "<a class="code" href="stream_8h.html">nel/misc/stream.h</a>"</font>
00033 <font class="preprocessor">#include &lt;string&gt;</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 &amp;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 &amp;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-&gt;<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>       &amp;<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> &amp;<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>       &amp;<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> &amp;<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>       &amp;<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>       &amp;<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> &amp;<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> &amp;<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> &amp;<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&gt;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> &amp;<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 &amp;&amp; <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> &amp;<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 &amp;&amp; <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> &amp;a, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &amp;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> &amp;a, <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CVector2f.html#z337_0">CVector2f</a> &amp;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> &amp;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> &amp;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 &amp;<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 &lt; </a>(<font class="keyword">const</font> CVector2f &amp;lhs, <font class="keyword">const</font> CVector2f &amp;rhs)
00147 {
00148         <font class="keywordflow">return</font> (lhs.x != rhs.x) ? lhs.x &lt; rhs.x : lhs.y &lt; 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>
</pre></div>

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