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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: vtFeatureSetPolygon 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>vtFeatureSetPolygon Class Reference</h1><!-- doxytag: class="vtFeatureSetPolygon" --><!-- doxytag: inherits="vtFeatureSet" -->Inheritance diagram for vtFeatureSetPolygon:<p><center><img src="classvtFeatureSetPolygon__inherit__graph.png" border="0" usemap="#vtFeatureSetPolygon__inherit__map" alt="Inheritance graph"></center><map name="vtFeatureSetPolygon__inherit__map"><area href="classvtFeatureSet.html" shape="rect" coords="31,7,129,34" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classvtFeatureSetPolygon-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="12da2cfe97990fa26bb894da9af2856a"></a><!-- doxytag: member="vtFeatureSetPolygon::GetNumEntities" ref="12da2cfe97990fa26bb894da9af2856a" args="() const " -->unsigned int </td><td class="memItemRight" valign="bottom"><b>GetNumEntities</b> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="b18a238903fe70cd59f6399f5658abc6"></a><!-- doxytag: member="vtFeatureSetPolygon::SetNumGeometries" ref="b18a238903fe70cd59f6399f5658abc6" args="(int iNum)" -->void </td><td class="memItemRight" valign="bottom"><b>SetNumGeometries</b> (int iNum)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtFeatureSetPolygon.html#b7a8cb389ecd6f03fb6bc4d2478125cd">Reserve</a> (int iNum)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f9309bfb89349de26367b0c677c098d6"></a><!-- doxytag: member="vtFeatureSetPolygon::ComputeExtent" ref="f9309bfb89349de26367b0c677c098d6" args="(DRECT &rect) const " -->bool </td><td class="memItemRight" valign="bottom"><b>ComputeExtent</b> (<a class="el" href="classDRECT.html">DRECT</a> &rect) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="f08435673011eae0262c5009aa5b037f"></a><!-- doxytag: member="vtFeatureSetPolygon::Offset" ref="f08435673011eae0262c5009aa5b037f" args="(const DPoint2 &p, bool bSelectedOnly=false)" -->void </td><td class="memItemRight" valign="bottom"><b>Offset</b> (const <a class="el" href="classDPoint2.html">DPoint2</a> &p, bool bSelectedOnly=false)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="784bb0ac276c7fcca9c468a441953e1e"></a><!-- doxytag: member="vtFeatureSetPolygon::TransformCoords" ref="784bb0ac276c7fcca9c468a441953e1e" args="(OCT *pTransform, bool progress_callback(int)=0)" -->bool </td><td class="memItemRight" valign="bottom"><b>TransformCoords</b> (OCT *pTransform, bool progress_callback(int)=0)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="a37bdacf3f6630793053b60e8f9ae8c9"></a><!-- doxytag: member="vtFeatureSetPolygon::AppendGeometryFrom" ref="a37bdacf3f6630793053b60e8f9ae8c9" args="(vtFeatureSet *pFromSet)" -->bool </td><td class="memItemRight" valign="bottom"><b>AppendGeometryFrom</b> (<a class="el" href="classvtFeatureSet.html">vtFeatureSet</a> *pFromSet)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="94dfccc8b56f7c77456bf149e45af233"></a><!-- doxytag: member="vtFeatureSetPolygon::AddPolygon" ref="94dfccc8b56f7c77456bf149e45af233" args="(const DPolygon2 &poly)" -->int </td><td class="memItemRight" valign="bottom"><b>AddPolygon</b> (const <a class="el" href="classDPolygon2.html">DPolygon2</a> &poly)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="200ed71dda4d7e212edde9d4a570967e"></a><!-- doxytag: member="vtFeatureSetPolygon::SetPolygon" ref="200ed71dda4d7e212edde9d4a570967e" args="(unsigned int num, const DPolygon2 &poly)" -->void </td><td class="memItemRight" valign="bottom"><b>SetPolygon</b> (unsigned int num, const <a class="el" href="classDPolygon2.html">DPolygon2</a> &poly)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="17f9fdd2f1c0f38d28d0591d8d5c864d"></a><!-- doxytag: member="vtFeatureSetPolygon::GetPolygon" ref="17f9fdd2f1c0f38d28d0591d8d5c864d" args="(unsigned int num) const " -->const <a class="el" href="classDPolygon2.html">DPolygon2</a> & </td><td class="memItemRight" valign="bottom"><b>GetPolygon</b> (unsigned int num) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0064766185e1e9c5c7054abfef192560"></a><!-- doxytag: member="vtFeatureSetPolygon::GetPolygon" ref="0064766185e1e9c5c7054abfef192560" args="(unsigned int num)" --><a class="el" href="classDPolygon2.html">DPolygon2</a> & </td><td class="memItemRight" valign="bottom"><b>GetPolygon</b> (unsigned int num)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtFeatureSetPolygon.html#28eabad772a33988cc46d0eef74be486">FindSimplePolygon</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &p) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtFeatureSetPolygon.html#114ae7032aea3078eac4fa0483b4b58b">FindPolygon</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &p) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="968e9ba10e68a6a14a5a2c518f646b67"></a><!-- doxytag: member="vtFeatureSetPolygon::CreateIndex" ref="968e9ba10e68a6a14a5a2c518f646b67" args="(int iSize)" -->void </td><td class="memItemRight" valign="bottom"><b>CreateIndex</b> (int iSize)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ad9bca5668402d895aea5315f1fe9f57"></a><!-- doxytag: member="vtFeatureSetPolygon::FreeIndex" ref="ad9bca5668402d895aea5315f1fe9f57" args="()" -->void </td><td class="memItemRight" valign="bottom"><b>FreeIndex</b> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="b69c334c2e64c30e902788bbe7d1635b"></a><!-- doxytag: member="vtFeatureSetPolygon::IsInsideRect" ref="b69c334c2e64c30e902788bbe7d1635b" args="(int iElem, const DRECT &rect)" -->virtual bool </td><td class="memItemRight" valign="bottom"><b>IsInsideRect</b> (int iElem, const <a class="el" href="classDRECT.html">DRECT</a> &rect)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7bfe77695055db4de584c639573298f4"></a><!-- doxytag: member="vtFeatureSetPolygon::CopyGeometry" ref="7bfe77695055db4de584c639573298f4" args="(unsigned int from, unsigned int to)" -->virtual void </td><td class="memItemRight" valign="bottom"><b>CopyGeometry</b> (unsigned int from, unsigned int to)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4f7a4a3400b6d96bc18b9639d0332c2e"></a><!-- doxytag: member="vtFeatureSetPolygon::SaveGeomToSHP" ref="4f7a4a3400b6d96bc18b9639d0332c2e" args="(SHPHandle hSHP, bool progress_callback(int)=0) const " -->virtual void </td><td class="memItemRight" valign="bottom"><b>SaveGeomToSHP</b> (SHPHandle hSHP, bool progress_callback(int)=0) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4a725b7ba466b0f5dc4b82e7addc446c"></a><!-- doxytag: member="vtFeatureSetPolygon::LoadGeomFromSHP" ref="4a725b7ba466b0f5dc4b82e7addc446c" args="(SHPHandle hSHP, bool progress_callback(int)=0)" -->virtual void </td><td class="memItemRight" valign="bottom"><b>LoadGeomFromSHP</b> (SHPHandle hSHP, bool progress_callback(int)=0)</td></tr><tr><td colspan="2"><br><h2>Protected Attributes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="20ab409fe537a3bd8073ecebf4cef95a"></a><!-- doxytag: member="vtFeatureSetPolygon::m_Poly" ref="20ab409fe537a3bd8073ecebf4cef95a" args="" --><a class="el" href="classDPolyArray.html">DPolyArray</a> </td><td class="memItemRight" valign="bottom"><b>m_Poly</b></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ecc0082950ddfc38e4adeb0aea356bda"></a><!-- doxytag: member="vtFeatureSetPolygon::m_pIndex" ref="ecc0082950ddfc38e4adeb0aea356bda" args="" -->SpatialIndex * </td><td class="memItemRight" valign="bottom"><b>m_pIndex</b></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>A set of polygon features. Each polygon is a <a class="el" href="classDPolygon2.html">DPolygon2</a> object, which consists of a number of rings: one external ring, and any number of internal rings (holes). <p><hr><h2>Member Function Documentation</h2><a class="anchor" name="114ae7032aea3078eac4fa0483b4b58b"></a><!-- doxytag: member="vtFeatureSetPolygon::FindPolygon" ref="114ae7032aea3078eac4fa0483b4b58b" 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">int vtFeatureSetPolygon::FindPolygon </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>Find the first polygon in this feature set which contains the given point.<p>The index of the polygon is return, or -1 if no polygon was found. </td> </tr></table><a class="anchor" name="28eabad772a33988cc46d0eef74be486"></a><!-- doxytag: member="vtFeatureSetPolygon::FindSimplePolygon" ref="28eabad772a33988cc46d0eef74be486" 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">int vtFeatureSetPolygon::FindSimplePolygon </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>Find the first polygon in this feature set which contains the given point. This method makes the simplification assumption that none of the polygons have holes.<p>The index of the polygon is return, or -1 if no polygon was found. </td> </tr></table><a class="anchor" name="b7a8cb389ecd6f03fb6bc4d2478125cd"></a><!-- doxytag: member="vtFeatureSetPolygon::Reserve" ref="b7a8cb389ecd6f03fb6bc4d2478125cd" args="(int iNum)" --><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">void vtFeatureSetPolygon::Reserve </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">int </td> <td class="mdname1" valign="top" nowrap> <em>iNum</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [virtual]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>If you know how many entities you will be adding to this FeatureSet, is it more efficient to reserve space for that many. <p>Implements <a class="el" href="classvtFeatureSet.html#a3875f1c72456c8fb561c83526119bae">vtFeatureSet</a>. </td> </tr></table><hr size="1"><address style="align: right;"><small>Generated on Mon Jan 14 14:40:55 2008 for vtdata library by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.5 </small></address></body></html>⌨️ 快捷键说明
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