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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=iso-8859-1"><title>vtdata library: DLine2 Class 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 1.4.5 --><div class="tabs"> <ul> <li><a href="index.html"><span>Main Page</span></a></li> <li id="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="files.html"><span>Files</span></a></li> </ul></div><div class="tabs"> <ul> <li><a href="annotated.html"><span>Class List</span></a></li> <li><a href="hierarchy.html"><span>Class Hierarchy</span></a></li> <li><a href="functions.html"><span>Class Members</span></a></li> </ul></div><h1>DLine2 Class Reference</h1><!-- doxytag: class="DLine2" --><!-- doxytag: inherits="vtArray< DPoint2 >" -->Inheritance diagram for DLine2:<p><center><img src="classDLine2__inherit__graph.png" border="0" usemap="#DLine2__inherit__map" alt="Inheritance graph"></center><map name="DLine2__inherit__map"><area href="classTLink.html" shape="rect" coords="8,156,62,183" alt=""><area href="classvtLine.html" shape="rect" coords="86,156,144,183" alt=""><area href="classvtArray.html" shape="rect" coords="7,7,143,33" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classDLine2-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="daf29cc9a1c5717b37a57b3e89595948"></a><!-- doxytag: member="DLine2::DLine2" ref="daf29cc9a1c5717b37a57b3e89595948" args="(int size)" --> </td><td class="memItemRight" valign="bottom"><b>DLine2</b> (int size)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="6df7d27c2390629f970f9572a892442d"></a><!-- doxytag: member="DLine2::DLine2" ref="6df7d27c2390629f970f9572a892442d" args="(const DLine2 &ref)" --> </td><td class="memItemRight" valign="bottom"><b>DLine2</b> (const <a class="el" href="classDLine2.html">DLine2</a> &ref)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0fd398a00553b025362967b4f5d8d03d"></a><!-- doxytag: member="DLine2::operator=" ref="0fd398a00553b025362967b4f5d8d03d" args="(const DLine2 &v)" --><a class="el" href="classDLine2.html">DLine2</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="classDLine2.html">DLine2</a> &v)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="922735eebf389d4a7b784f522608d198"></a><!-- doxytag: member="DLine2::operator=" ref="922735eebf389d4a7b784f522608d198" args="(const FLine2 &v)" --><a class="el" href="classDLine2.html">DLine2</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="classFLine2.html">FLine2</a> &v)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="9322fd3894f32a91686d88d97375541a"></a><!-- doxytag: member="DLine2::Add" ref="9322fd3894f32a91686d88d97375541a" args="(const DPoint2 &p)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="classDLine2.html#9322fd3894f32a91686d88d97375541a">Add</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &p)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Add a given offset to all points. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e381da094f280a05492a6941c9817f32"></a><!-- doxytag: member="DLine2::Mult" ref="e381da094f280a05492a6941c9817f32" args="(double factor)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="classDLine2.html#e381da094f280a05492a6941c9817f32">Mult</a> (double factor)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Multiply all points by a given factor. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="17d350b31b7afd0aad3dea39429de354"></a><!-- doxytag: member="DLine2::InsertPointAfter" ref="17d350b31b7afd0aad3dea39429de354" args="(int iInsertAfter, const DPoint2 &Point)" -->void </td><td class="memItemRight" valign="bottom"><b>InsertPointAfter</b> (int iInsertAfter, const <a class="el" href="classDPoint2.html">DPoint2</a> &Point)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="d3067ce1e4d50633afba935d86e88fb6"></a><!-- doxytag: member="DLine2::RemovePoint" ref="d3067ce1e4d50633afba935d86e88fb6" args="(int i)" -->void </td><td class="memItemRight" valign="bottom"><b>RemovePoint</b> (int i)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classDLine2.html#eb4297336c7042eb6798d49ac11c2eb5">ContainsPoint</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &p) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">double </td><td class="memItemRight" valign="bottom"><a class="el" href="classDLine2.html#004cdd0a9216788bb07c0d2a6220ceb2">SegmentLength</a> (unsigned int i) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classDLine2.html#f9282fd854e15fd4af2910fde29d2f7e">NearestPoint</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &Point, int &iIndex, double &dist) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classDLine2.html#79f842758f6342a52d8775edd3f099e5">NearestSegment</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &Point, int &iIndex, double &dist, <a class="el" href="classDPoint2.html">DPoint2</a> &Intersection) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0ff8a7b54b21f0cda7b60d1a73a55f03"></a><!-- doxytag: member="DLine2::ReverseOrder" ref="0ff8a7b54b21f0cda7b60d1a73a55f03" args="()" -->void </td><td class="memItemRight" valign="bottom"><b>ReverseOrder</b> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="e48029c95dd7dcdc00f8989e790311c4"></a><!-- doxytag: member="DLine2::IsConvex" ref="e48029c95dd7dcdc00f8989e790311c4" args="() const " -->bool </td><td class="memItemRight" valign="bottom"><b>IsConvex</b> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classDPoint2.html">DPoint2</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classDLine2.html#5d867bb9a68268e756db45c9b72de7b0">GetSafePoint</a> (int index) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="98b7a07c82fccd82fea17deb7f020f34"></a><!-- doxytag: member="DLine2::SetSafePoint" ref="98b7a07c82fccd82fea17deb7f020f34" args="(int index, const DPoint2 &p)" -->void </td><td class="memItemRight" valign="bottom"><b>SetSafePoint</b> (int index, const <a class="el" href="classDPoint2.html">DPoint2</a> &p)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4eb18f9906013123a6d2ae0e9ef34389"></a><!-- doxytag: member="DLine2::Length" ref="4eb18f9906013123a6d2ae0e9ef34389" args="() const " -->double </td><td class="memItemRight" valign="bottom"><b>Length</b> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7fcf53dedec9da060ae41787888d6cca"></a><!-- doxytag: member="DLine2::Centroid" ref="7fcf53dedec9da060ae41787888d6cca" args="() const " --><a class="el" href="classDPoint2.html">DPoint2</a> </td><td class="memItemRight" valign="bottom"><b>Centroid</b> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="89023b698f33b7176c70a7bce9842c25"></a><!-- doxytag: member="DLine2::Area" ref="89023b698f33b7176c70a7bce9842c25" args="() const " -->double </td><td class="memItemRight" valign="bottom"><b>Area</b> () const </td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>A series of 2D points. This is useful for representing either a series of points, line segments or a simple closed polygon. Double-precision. <p><hr><h2>Member Function Documentation</h2><a class="anchor" name="eb4297336c7042eb6798d49ac11c2eb5"></a><!-- doxytag: member="DLine2::ContainsPoint" ref="eb4297336c7042eb6798d49ac11c2eb5" args="(const DPoint2 &p) const " --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">bool DLine2::ContainsPoint </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="classDPoint2.html">DPoint2</a> & </td> <td class="mdname1" valign="top" nowrap> <em>p</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap> const</td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>With the assumption that this set of points defines a closed polygon, test whether the polygon contains a given point. Since a simple array of points being interpreted as a polygon, this means the data may be concave or convex, but not contains holes. </td> </tr></table><a class="anchor" name="5d867bb9a68268e756db45c9b72de7b0"></a><!-- doxytag: member="DLine2::GetSafePoint" ref="5d867bb9a68268e756db45c9b72de7b0" args="(int index) const " --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"><a class="el" href="classDPoint2.html">DPoint2</a> & DLine2::GetSafePoint </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">int </td> <td class="mdname1" valign="top" nowrap> <em>index</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap> const</td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Get a point on the line, safely wrapping around to the end or beginning for index values that are out of range. </td> </tr></table><a class="anchor" name="f9282fd854e15fd4af2910fde29d2f7e"></a><!-- doxytag: member="DLine2::NearestPoint" ref="f9282fd854e15fd4af2910fde29d2f7e" args="(const DPoint2 &Point, int &iIndex, double &dist) const " --><p>⌨️ 快捷键说明
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