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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: vtCamera 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>vtCamera Class Reference<br><small>[<a class="el" href="group__sg.html">Scene Graph</a>]</small></h1><!-- doxytag: class="vtCamera" --><!-- doxytag: inherits="vtTransform" -->Inheritance diagram for vtCamera:<p><center><img src="classvtCamera__inherit__graph.png" border="0" usemap="#vtCamera__inherit__map" alt="Inheritance graph"></center><map name="vtCamera__inherit__map"><area href="classvtTransform.html" shape="rect" coords="119,305,212,332" alt=""><area href="classvtGroup.html" shape="rect" coords="71,231,140,257" alt=""><area href="classvtNode.html" shape="rect" coords="21,156,85,183" alt=""><area href="classvtNodeBase.html" shape="rect" coords="7,81,100,108" alt=""><area href="classvtTarget.html" shape="rect" coords="19,7,88,33" alt=""><area href="classvtGroupBase.html" shape="rect" coords="109,156,208,183" alt=""><area href="classvtTransformBase.html" shape="rect" coords="164,231,287,257" alt=""></map><center><font size="2">[<a href="graph_legend.html">legend</a>]</font></center><a href="classvtCamera-members.html">List of all members.</a><hr><a name="_details"></a><h2>Detailed Description</h2>A Camera is analogous to a physical camera: it description the location of a point from which the scene is rendered. It can either be a perspective or orthographic camera, and it very easy to control since it inherits all the methods of a transform (<a class="el" href="classvtTransform.html">vtTransform</a>).<p>Although the camera is a node, this is purely for convenience. You do not have to place the camera node in your scene graph. You may, however, tell your scene (<a class="el" href="classvtScene.html">vtScene</a>) which camera to use. The scene produces a default camera which is used unless you tell it otherwise. <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">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#8b9d51005ae670e7c68496900a71725b">SetHither</a> (float f)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#3e9f5e7233192e6bb693c51ba678718a">GetHither</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#ca8c9329a6c96bdbc28b55f948edc933">SetYon</a> (float f)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#32a337b4711a2a34a7277eb538821c7c">GetYon</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#c9f1da31ce5596a81c7512d69adc2bc2">SetFOV</a> (float f)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#aab549d1490c5e04da6f0b0844a8fc59">GetFOV</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#44f03975dffd1dcf9c929c856b719d0f">GetVertFOV</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#0d357a20c66690391644763a6016da89">SetOrtho</a> (bool bOrtho)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#9f79fda619a41f412cdb475033e8d400">IsOrtho</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#355adf89ab8ef4c114e08d798243c7b6">SetWidth</a> (float f)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#fe7410eba89d28d5309a5a50abc9f9cc">GetWidth</a> () const </td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classvtCamera.html#073fa8e685691a08f58be03693fbe579">ZoomToSphere</a> (const <a class="elRef" doxygen="vtdata.tag:../vtdata/" href="../vtdata/classFSphere.html">FSphere</a> &sphere, float fPitch=0.0f)</td></tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="aab549d1490c5e04da6f0b0844a8fc59"></a><!-- doxytag: member="vtCamera::GetFOV" ref="aab549d1490c5e04da6f0b0844a8fc59" args="() 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">float vtCamera::GetFOV </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </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>Return the camera's horizontal field of view (FOV) in radians. </td> </tr></table><a class="anchor" name="3e9f5e7233192e6bb693c51ba678718a"></a><!-- doxytag: member="vtCamera::GetHither" ref="3e9f5e7233192e6bb693c51ba678718a" args="() 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">float vtCamera::GetHither </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </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 the hither (near) clipping plane distance. </td> </tr></table><a class="anchor" name="44f03975dffd1dcf9c929c856b719d0f"></a><!-- doxytag: member="vtCamera::GetVertFOV" ref="44f03975dffd1dcf9c929c856b719d0f" args="() 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">float vtCamera::GetVertFOV </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </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>Return the camera's vertical field of view (FOV) in radians. </td> </tr></table><a class="anchor" name="fe7410eba89d28d5309a5a50abc9f9cc"></a><!-- doxytag: member="vtCamera::GetWidth" ref="fe7410eba89d28d5309a5a50abc9f9cc" args="() 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">float vtCamera::GetWidth </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </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 the view width of an orthographic camera. </td> </tr></table><a class="anchor" name="32a337b4711a2a34a7277eb538821c7c"></a><!-- doxytag: member="vtCamera::GetYon" ref="32a337b4711a2a34a7277eb538821c7c" args="() 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">float vtCamera::GetYon </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </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 the yon (far) clipping plane distance. </td> </tr></table><a class="anchor" name="9f79fda619a41f412cdb475033e8d400"></a><!-- doxytag: member="vtCamera::IsOrtho" ref="9f79fda619a41f412cdb475033e8d400" args="() 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 vtCamera::IsOrtho </td> <td class="md" valign="top">( </td>⌨️ 快捷键说明
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