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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: vtHeightField3d 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>vtHeightField3d Class Reference</h1><!-- doxytag: class="vtHeightField3d" --><!-- doxytag: inherits="vtHeightField" -->Inheritance diagram for vtHeightField3d:<p><center><img src="classvtHeightField3d__inherit__graph.png" border="0" usemap="#vtHeightField3d__inherit__map" alt="Inheritance graph"></center><map name="vtHeightField3d__inherit__map"><area href="classvtHeightFieldGrid3d.html" shape="rect" coords="7,156,148,183" alt=""><area href="classvtTin.html" shape="rect" coords="172,156,223,183" alt=""><area href="classvtHeightField.html" shape="rect" coords="87,7,188,33" alt=""><area href="classvtElevationGrid.html" shape="rect" coords="20,231,135,257" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classvtHeightField3d-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="cf9fa999e84b1425b88710da28aa1b76"></a><!-- doxytag: member="vtHeightField3d::Initialize" ref="cf9fa999e84b1425b88710da28aa1b76" args="(const LinearUnits units, const DRECT &earthextents, float fMinHeight, float fMaxHeight)" -->void </td><td class="memItemRight" valign="bottom"><b>Initialize</b> (const LinearUnits units, const <a class="el" href="classDRECT.html">DRECT</a> &earthextents, float fMinHeight, float fMaxHeight)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField3d.html#b1210c68b3bbb1d0913b7c0d0b5ae53b">SetEarthExtents</a> (const <a class="el" href="classDRECT.html">DRECT</a> &ext)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField3d.html#36bdc3c5983331f833972c9d287f2072">FindAltitudeAtPoint</a> (const <a class="el" href="classFPoint3.html">FPoint3</a> &p3, float &fAltitude, bool bTrue=false, int iCultureFlags=0, <a class="el" href="classFPoint3.html">FPoint3</a> *vNormal=NULL) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="bc1fb1a17ef225baa568f479d7506409"></a><!-- doxytag: member="vtHeightField3d::CastRayToSurface" ref="bc1fb1a17ef225baa568f479d7506409" args="(const FPoint3 &point, const FPoint3 &dir, FPoint3 &result) const =0" -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField3d.html#bc1fb1a17ef225baa568f479d7506409">CastRayToSurface</a> (const <a class="el" href="classFPoint3.html">FPoint3</a> &point, const <a class="el" href="classFPoint3.html">FPoint3</a> &dir, <a class="el" href="classFPoint3.html">FPoint3</a> &result) const =0</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Find the intersection point of a ray with the heightfield. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField3d.html#c6790f796f572a3c07f43774a7180e26">PointIsAboveTerrain</a> (const <a class="el" href="classFPoint3.html">FPoint3</a> &p) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField3d.html#805559c1191fa76d8515761ec4002b39">ConvertEarthToSurfacePoint</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &epos, <a class="el" href="classFPoint3.html">FPoint3</a> &p3, int iCultureFlags=0, bool bTrue=false)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField3d.html#6ccc6e956d074a14f802a495da89d05e">ContainsWorldPoint</a> (float x, float z)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c131aa09c13b8c23f4ae0d5a8eb94b76"></a><!-- doxytag: member="vtHeightField3d::GetCenter" ref="c131aa09c13b8c23f4ae0d5a8eb94b76" args="(FPoint3 &center)" -->void </td><td class="memItemRight" valign="bottom"><b>GetCenter</b> (<a class="el" href="classFPoint3.html">FPoint3</a> &center)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="94e39a5aa1a7fce863faaea09e5a0d8e"></a><!-- doxytag: member="vtHeightField3d::SetCulture" ref="94e39a5aa1a7fce863faaea09e5a0d8e" args="(CultureExtension *ext)" -->void </td><td class="memItemRight" valign="bottom"><b>SetCulture</b> (CultureExtension *ext)</td></tr><tr><td colspan="2"><br><h2>Public Attributes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="2c76b0f6dcd7833d2805dc9242cad9a2"></a><!-- doxytag: member="vtHeightField3d::m_WorldExtents" ref="2c76b0f6dcd7833d2805dc9242cad9a2" args="" --><a class="el" href="classFRECT.html">FRECT</a> </td><td class="memItemRight" valign="bottom"><b>m_WorldExtents</b></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ef85ef5d25cd3728652b1ea260bee877"></a><!-- doxytag: member="vtHeightField3d::m_Conversion" ref="ef85ef5d25cd3728652b1ea260bee877" args="" --><a class="el" href="classvtLocalConversion.html">vtLocalConversion</a> </td><td class="memItemRight" valign="bottom"><b>m_Conversion</b></td></tr><tr><td colspan="2"><br><h2>Protected Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0266fb5c400481ad1b1c50ecb7e90e87"></a><!-- doxytag: member="vtHeightField3d::UpdateWorldExtents" ref="0266fb5c400481ad1b1c50ecb7e90e87" args="()" -->void </td><td class="memItemRight" valign="bottom"><b>UpdateWorldExtents</b> ()</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="97a1174e19aed5151a6f017fa0a978d6"></a><!-- doxytag: member="vtHeightField3d::m_fDiagonalLength" ref="97a1174e19aed5151a6f017fa0a978d6" args="" -->float </td><td class="memItemRight" valign="bottom"><b>m_fDiagonalLength</b></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="0897bce9fbbdbdf5b40508948e2b19fe"></a><!-- doxytag: member="vtHeightField3d::m_pCulture" ref="0897bce9fbbdbdf5b40508948e2b19fe" args="" -->CultureExtension * </td><td class="memItemRight" valign="bottom"><b>m_pCulture</b></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>This class extents <a class="el" href="classvtHeightField.html">vtHeightField</a> with the abilty to operate in 'world' coordinates, that is, an artificial meters-based 3D coordinate system which is much better suited for many tasks than trying to operate directly on the raw 2D 'earth' coordinates. <p><hr><h2>Member Function Documentation</h2><a class="anchor" name="6ccc6e956d074a14f802a495da89d05e"></a><!-- doxytag: member="vtHeightField3d::ContainsWorldPoint" ref="6ccc6e956d074a14f802a495da89d05e" args="(float x, float z)" --><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 vtHeightField3d::ContainsWorldPoint </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">float </td> <td class="mdname" nowrap> <em>x</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>float </td> <td class="mdname" nowrap> <em>z</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Tests whether a given point is within the current terrain </td> </tr></table><a class="anchor" name="805559c1191fa76d8515761ec4002b39"></a><!-- doxytag: member="vtHeightField3d::ConvertEarthToSurfacePoint" ref="805559c1191fa76d8515761ec4002b39" args="(const DPoint2 &epos, FPoint3 &p3, int iCultureFlags=0, bool bTrue=false)" --><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 vtHeightField3d::ConvertEarthToSurfacePoint </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="mdname" nowrap> <em>epos</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap><a class="el" href="classFPoint3.html">FPoint3</a> & </td> <td class="mdname" nowrap> <em>p3</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>int </td> <td class="mdname" nowrap> <em>iCultureFlags</em> = <code>0</code>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>bool </td> <td class="mdname" nowrap> <em>bTrue</em> = <code>false</code></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr>⌨️ 快捷键说明
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