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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8"><title>RVO: vector2.h File Reference</title><link href="doxygen.css" rel="stylesheet" type="text/css"><link href="tabs.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.5.5 --><div class="navigation" id="top"> <div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Classes</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div></div><div class="contents"><h1>vector2.h File Reference</h1><code>#include <iostream></code><br><code>#include <cmath></code><br><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Namespaces</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">namespace </td><td class="memItemRight" valign="bottom"><b>RVO</b></td></tr><tr><td colspan="2"><br><h2>Classes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a></td></tr><tr><td colspan="2"><br><h2>Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#00dcd4b6febd7477c7e813b0b1ddbc29">operator*</a> (float a, const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">std::ostream & </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#62143f56e32d481dfc37ecbef619d8e5">operator<<</a> (std::ostream &os, const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#2043059367787446b370f39dfa82518b">absSq</a> (const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#e605be6f27500d69ea34c41e6e186daa">abs</a> (const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#9e770f79219752f90e035aec058dbfa5">norm</a> (const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#312f30ae1df576982402dfbff7c7e63a">normal</a> (const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &p, const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#57fa0c329bbf7e4f847539f78568ab18">atan</a> (const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="vector2_8h.html#bb806ad7383b7e3d2265b0134ca4e1b6">det</a> (const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &p, const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> &q)</td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>Contains the Vector2 class; a two-dimensional vector, and some operations on a vector. <hr><h2>Function Documentation</h2><a class="anchor" name="e605be6f27500d69ea34c41e6e186daa"></a><!-- doxytag: member="vector2.h::abs" ref="e605be6f27500d69ea34c41e6e186daa" args="(const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname">float abs </td> <td>(</td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>A vector </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>The absolute value of the vector. </dd></dl></div></div><p><a class="anchor" name="2043059367787446b370f39dfa82518b"></a><!-- doxytag: member="vector2.h::absSq" ref="2043059367787446b370f39dfa82518b" args="(const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname">float absSq </td> <td>(</td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>A vector </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>The squared absolute value of the vector. </dd></dl></div></div><p><a class="anchor" name="57fa0c329bbf7e4f847539f78568ab18"></a><!-- doxytag: member="vector2.h::atan" ref="57fa0c329bbf7e4f847539f78568ab18" args="(const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname">float atan </td> <td>(</td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>A vector </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>The angle the vector makes with the positive x-axis. Is in the range [-PI, PI]. </dd></dl></div></div><p><a class="anchor" name="bb806ad7383b7e3d2265b0134ca4e1b6"></a><!-- doxytag: member="vector2.h::det" ref="bb806ad7383b7e3d2265b0134ca4e1b6" args="(const RVO::Vector2 &p, const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname">float det </td> <td>(</td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>p</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>p</em> </td><td>A vector </td></tr> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>A vector </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>Returns the determinant of the 2x2 matrix formed by using p as the upper row and q as the lower row. </dd></dl></div></div><p><a class="anchor" name="9e770f79219752f90e035aec058dbfa5"></a><!-- doxytag: member="vector2.h::norm" ref="9e770f79219752f90e035aec058dbfa5" args="(const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> norm </td> <td>(</td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em> </td> <td> ) </td> <td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>A vector </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>The normalized vector. </dd></dl></div></div><p><a class="anchor" name="312f30ae1df576982402dfbff7c7e63a"></a><!-- doxytag: member="vector2.h::normal" ref="312f30ae1df576982402dfbff7c7e63a" args="(const RVO::Vector2 &p, const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> normal </td> <td>(</td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>p</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>p</em> </td><td>A point </td></tr> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>A point </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>The normal vector to the line segment pq. </dd></dl></div></div><p><a class="anchor" name="00dcd4b6febd7477c7e813b0b1ddbc29"></a><!-- doxytag: member="vector2.h::operator*" ref="00dcd4b6febd7477c7e813b0b1ddbc29" args="(float a, const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> operator* </td> <td>(</td> <td class="paramtype">float </td> <td class="paramname"> <em>a</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>Scalar multiplication. <dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>a</em> </td><td>The left hand side scalar </td></tr> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>The right hand side vector </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>The scalar multiplication of the lhs scalaer and the rhs vector. </dd></dl></div></div><p><a class="anchor" name="62143f56e32d481dfc37ecbef619d8e5"></a><!-- doxytag: member="vector2.h::operator<<" ref="62143f56e32d481dfc37ecbef619d8e5" args="(std::ostream &os, const RVO::Vector2 &q)" --><div class="memitem"><div class="memproto"> <table class="memname"> <tr> <td class="memname">std::ostream& operator<< </td> <td>(</td> <td class="paramtype">std::ostream & </td> <td class="paramname"> <em>os</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">const <a class="el" href="class_r_v_o_1_1_vector2.html">RVO::Vector2</a> & </td> <td class="paramname"> <em>q</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td width="100%"><code> [inline]</code></td> </tr> </table></div><div class="memdoc"><p>Writes a vector to the standard output. <dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>os</em> </td><td>The output stream </td></tr> <tr><td valign="top"></td><td valign="top"><em>q</em> </td><td>The vector </td></tr> </table></dl><dl class="return" compact><dt><b>Returns:</b></dt><dd>The standard output. </dd></dl></div></div><p></div><hr size="1"><address style="text-align: right;"><small>Generated on Sun May 25 17:16:13 2008 for RVO by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.5 </small></address></body></html>⌨️ 快捷键说明
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