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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>vtlib library: vtAnimPath 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><a href="modules.html"><span>Modules</span></a></li> <li id="current"><a href="annotated.html"><span>Classes</span></a></li> <li><a href="dirs.html"><span>Directories</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>vtAnimPath Class Reference<br><small>[<a class="el" href="group__nav.html">Navigation</a>]</small></h1><!-- doxytag: class="vtAnimPath" --><a href="classvtAnimPath-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>An animation path is a series of locations (class <a class="el" href="structControlPoint.html">ControlPoint</a>) which define a path through space in world coordinates. It is useful to use in conjunction with the <a class="el" href="classvtAnimPathEngine.html">vtAnimPathEngine</a> class, which can move any transform (such as scene graph object or camera) along the path.<p>When this object is serialized to an XML file, the points are transformed to earth coordinates in GCS(WGS84) so that the result is interoperable and terrain-independent. <p><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="5e247e22fc69c94c0c3e939fd19472d4"></a><!-- doxytag: member="vtAnimPath::SetProjection" ref="5e247e22fc69c94c0c3e939fd19472d4" args="(const vtProjection &proj)" -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#5e247e22fc69c94c0c3e939fd19472d4">SetProjection</a> (const <a class="elRef" doxygen="vtdata.tag:../vtdata/" href="../vtdata/classvtProjection.html">vtProjection</a> &proj)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Must tell the AnimPath what projection its points are in, for serialization. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="77eed8ea874323564e41e67b40e1d7d9"></a><!-- doxytag: member="vtAnimPath::GetMatrix" ref="77eed8ea874323564e41e67b40e1d7d9" args="(double time, FMatrix4 &matrix, bool bPosOnly) const " -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#77eed8ea874323564e41e67b40e1d7d9">GetMatrix</a> (double time, <a class="elRef" doxygen="vtdata.tag:../vtdata/" href="../vtdata/classFMatrix4.html">FMatrix4</a> &matrix, bool bPosOnly) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Get the transformation matrix for a point in time. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="5c00cba3beec3c76079279a4b4efe4b4"></a><!-- doxytag: member="vtAnimPath::GetInterpolatedControlPoint" ref="5c00cba3beec3c76079279a4b4efe4b4" args="(double time, ControlPoint &controlPoint) const " -->virtual bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#5c00cba3beec3c76079279a4b4efe4b4">GetInterpolatedControlPoint</a> (double time, <a class="el" href="structControlPoint.html">ControlPoint</a> &controlPoint) const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Get the local <a class="el" href="structControlPoint.html">ControlPoint</a> frame for a point in time. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="17889a8e63f6bdc6d6e462dd5af65651"></a><!-- doxytag: member="vtAnimPath::Insert" ref="17889a8e63f6bdc6d6e462dd5af65651" args="(double time, const ControlPoint &controlPoint)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#17889a8e63f6bdc6d6e462dd5af65651">Insert</a> (double time, const <a class="el" href="structControlPoint.html">ControlPoint</a> &controlPoint)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Insert a control point on this path. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="8efa2cdf9d67b3d81d92367bb87d299e"></a><!-- doxytag: member="vtAnimPath::RemovePoint" ref="8efa2cdf9d67b3d81d92367bb87d299e" args="(int index)" -->void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#8efa2cdf9d67b3d81d92367bb87d299e">RemovePoint</a> (int index)</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Remove a control point from this path, by index. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="206247c6e736fa90f34cad1dd9c50224"></a><!-- doxytag: member="vtAnimPath::GetNumPoints" ref="206247c6e736fa90f34cad1dd9c50224" args="()" -->unsigned int </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#206247c6e736fa90f34cad1dd9c50224">GetNumPoints</a> ()</td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Return number of control points in this path. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#c5f6d39dad8fb270fca65743c318ffa2">SetInterpMode</a> (InterpMode mode)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="63b01c0f21832fa1982ea8f6a1ee852c"></a><!-- doxytag: member="vtAnimPath::GetInterpMode" ref="63b01c0f21832fa1982ea8f6a1ee852c" args="() const " -->InterpMode </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#63b01c0f21832fa1982ea8f6a1ee852c">GetInterpMode</a> () const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the interpolation mode, either LINEAR or CUBIC_SPLINE. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#2d3af01671deacbbb1a71aca96190b05">SetLoop</a> (bool bFlag)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="ef63e2a703f4869e7d0741dce00bc30d"></a><!-- doxytag: member="vtAnimPath::GetLoop" ref="ef63e2a703f4869e7d0741dce00bc30d" args="() const " -->bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#ef63e2a703f4869e7d0741dce00bc30d">GetLoop</a> () const </td></tr><tr><td class="mdescLeft"> </td><td class="mdescRight">Return true if interpolation is set to loop back to the first point. <br></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#0903220e1b2ad594e9652b453071f9de">Write</a> (const char *fname)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtAnimPath.html#a762f0bdb3efe216d7eea56d25ed0cc1">Read</a> (const char *fname)</td></tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="a762f0bdb3efe216d7eea56d25ed0cc1"></a><!-- doxytag: member="vtAnimPath::Read" ref="a762f0bdb3efe216d7eea56d25ed0cc1" args="(const char *fname)" --><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 vtAnimPath::Read </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const char * </td> <td class="mdname1" valign="top" nowrap> <em>fname</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Read the animation path from a .vtap file, a simple XML file format. </td> </tr></table><a class="anchor" name="c5f6d39dad8fb270fca65743c318ffa2"></a><!-- doxytag: member="vtAnimPath::SetInterpMode" ref="c5f6d39dad8fb270fca65743c318ffa2" args="(InterpMode mode)" --><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 vtAnimPath::SetInterpMode </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">InterpMode </td> <td class="mdname1" valign="top" nowrap> <em>mode</em> </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>Set the interpolation mode, either vtAnimPath::LINEAR or vtAnimPath::CUBIC_SPLINE.<ul><li>LINEAR: the position is interpolated in a straight line between each of the control points.</li><li>CUBIC_SPLINE: the position is interpolated using a cubic spline, a smooth path which passes directly through each control point. </li></ul> </td> </tr></table><a class="anchor" name="2d3af01671deacbbb1a71aca96190b05"></a><!-- doxytag: member="vtAnimPath::SetLoop" ref="2d3af01671deacbbb1a71aca96190b05" args="(bool bFlag)" --><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 vtAnimPath::SetLoop </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">bool </td> <td class="mdname1" valign="top" nowrap> <em>bFlag</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>If Loop is true, interpolation of the control points will loop back to the first point. Where N is the number of points, normal interpolation is 0,1,2,...,N-1. Loop interpolation is 0,1,2,...,N-1,0. This is like the difference between an open polyline and a closed polygon. </td> </tr></table><a class="anchor" name="0903220e1b2ad594e9652b453071f9de"></a><!-- doxytag: member="vtAnimPath::Write" ref="0903220e1b2ad594e9652b453071f9de" args="(const char *fname)" --><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 vtAnimPath::Write </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">const char * </td> <td class="mdname1" valign="top" nowrap> <em>fname</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Write the animation path to a .vtap file, a simple XML file format. </td> </tr></table><hr size="1"><address style="align: right;"><small>Generated on Mon Jan 14 14:41:00 2008 for vtlib 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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