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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: vtHeightField 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>vtHeightField Class Reference</h1><!-- doxytag: class="vtHeightField" -->Inheritance diagram for vtHeightField:<p><center><img src="classvtHeightField__inherit__graph.png" border="0" usemap="#vtHeightField__inherit__map" alt="Inheritance graph"></center><map name="vtHeightField__inherit__map"><area href="classvtHeightField3d.html" shape="rect" coords="80,81,195,108" alt=""><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="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="classvtHeightField-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="a8d42fab64a1ae97013df3695dba8218"></a><!-- doxytag: member="vtHeightField::Initialize" ref="a8d42fab64a1ae97013df3695dba8218" args="(const DRECT &extents, float fMinHeight, float fMaxHeight)" -->void </td><td class="memItemRight" valign="bottom"><b>Initialize</b> (const <a class="el" href="classDRECT.html">DRECT</a> &extents, float fMinHeight, float fMaxHeight)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="36033dee13c4298309750e90ac06898b"></a><!-- doxytag: member="vtHeightField::FindAltitudeOnEarth" ref="36033dee13c4298309750e90ac06898b" args="(const DPoint2 &p, float &fAltitude, bool bTrue=false) const =0" -->virtual bool </td><td class="memItemRight" valign="bottom"><b>FindAltitudeOnEarth</b> (const <a class="el" href="classDPoint2.html">DPoint2</a> &p, float &fAltitude, bool bTrue=false) const =0</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField.html#7c202cdb8fa85d5500a38525798c78a4">ContainsEarthPoint</a> (const <a class="el" href="classDPoint2.html">DPoint2</a> &p, bool bInclusive=false) const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classDRECT.html">DRECT</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField.html#e45d14b7aee3cff3891aef3128fcb401">GetEarthExtents</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="6cfd2f68954a37141cdc52570422839f"></a><!-- doxytag: member="vtHeightField::GetEarthExtents" ref="6cfd2f68954a37141cdc52570422839f" args="() const " -->const <a class="el" href="classDRECT.html">DRECT</a> & </td><td class="memItemRight" valign="bottom"><b>GetEarthExtents</b> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">virtual void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField.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">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtHeightField.html#e356383f1edd7e9b98be0964c1be83c2">GetHeightExtents</a> (float &fMinHeight, float &fMaxHeight) const </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="9d487ef83d96bc8f630f6abc22a9bf5f"></a><!-- doxytag: member="vtHeightField::m_fMinHeight" ref="9d487ef83d96bc8f630f6abc22a9bf5f" args="" -->float </td><td class="memItemRight" valign="bottom"><b>m_fMinHeight</b></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="24492d4b5f813d93fdc84f6dec0b9adc"></a><!-- doxytag: member="vtHeightField::m_fMaxHeight" ref="24492d4b5f813d93fdc84f6dec0b9adc" args="" -->float </td><td class="memItemRight" valign="bottom"><b>m_fMaxHeight</b></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="01ab80245b5d67fe83de9196b308fd9d"></a><!-- doxytag: member="vtHeightField::m_EarthExtents" ref="01ab80245b5d67fe83de9196b308fd9d" args="" --><a class="el" href="classDRECT.html">DRECT</a> </td><td class="memItemRight" valign="bottom"><b>m_EarthExtents</b></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>A heightfield is any collection of surfaces such that, given a horizontal X,Y position, there exists only a single elevation value. <p><hr><h2>Member Function Documentation</h2><a class="anchor" name="7c202cdb8fa85d5500a38525798c78a4"></a><!-- doxytag: member="vtHeightField::ContainsEarthPoint" ref="7c202cdb8fa85d5500a38525798c78a4" args="(const DPoint2 &p, bool bInclusive=false) 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 vtHeightField::ContainsEarthPoint </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>p</em>, </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>bInclusive</em> = <code>false</code></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"> const<code> [inline]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Test if a point is within the extents of the grid. </td> </tr></table><a class="anchor" name="e45d14b7aee3cff3891aef3128fcb401"></a><!-- doxytag: member="vtHeightField::GetEarthExtents" ref="e45d14b7aee3cff3891aef3128fcb401" args="()" --><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="classDRECT.html">DRECT</a>& vtHeightField::GetEarthExtents </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [inline]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Returns the geographic extents of the grid. </td> </tr></table><a class="anchor" name="e356383f1edd7e9b98be0964c1be83c2"></a><!-- doxytag: member="vtHeightField::GetHeightExtents" ref="e356383f1edd7e9b98be0964c1be83c2" args="(float &fMinHeight, float &fMaxHeight) 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">void vtHeightField::GetHeightExtents </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">float & </td> <td class="mdname" nowrap> <em>fMinHeight</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>fMaxHeight</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"> const</td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Gets the minimum and maximum height values. The values are placed in the arguments by reference. You must have first called ComputeHeightExtents. </td> </tr></table><a class="anchor" name="b1210c68b3bbb1d0913b7c0d0b5ae53b"></a><!-- doxytag: member="vtHeightField::SetEarthExtents" ref="b1210c68b3bbb1d0913b7c0d0b5ae53b" args="(const DRECT &ext)" --><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 vtHeightField::SetEarthExtents </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const <a class="el" href="classDRECT.html">DRECT</a> & </td> <td class="mdname1" valign="top" nowrap> <em>ext</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>Set the geographic extents of the grid. <p>Reimplemented in <a class="el" href="classvtHeightField3d.html#b1210c68b3bbb1d0913b7c0d0b5ae53b">vtHeightField3d</a>, and <a class="el" href="classvtHeightFieldGrid3d.html#b1210c68b3bbb1d0913b7c0d0b5ae53b">vtHeightFieldGrid3d</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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