<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >swf_perspective</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK REL="HOME" TITLE="PHP 手册" HREF="index.html"><LINK REL="UP" TITLE="Shockwave Flash Functions" HREF="ref.swf.html"><LINK REL="PREVIOUS" TITLE="swf_ortho" HREF="function.swf-ortho.html"><LINK REL="NEXT" TITLE="swf_placeobject" HREF="function.swf-placeobject.html"><META HTTP-EQUIV="Content-type" CONTENT="text/html; charset=UTF-8"></HEAD ><BODY CLASS="refentry" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >PHP 手册</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="function.swf-ortho.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="function.swf-placeobject.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.swf-perspective" ></A >swf_perspective</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN230463" ></A ><P > (PHP 4, PECL)</P >swf_perspective -- Define a perspective projection transformation</DIV ><DIV CLASS="refsect1" ><A NAME="AEN230466" ></A ><H2 >说明</H2 >void <B CLASS="methodname" >swf_perspective</B > ( float fovy, float aspect, float near, float far )<BR ></BR ><P > Defines a perspective projection transformation. </P ><DIV CLASS="note" ><BLOCKQUOTE CLASS="note" ><P ><B >注意: </B > Various distortion artifacts may appear when performing a perspective projection, this is because Flash players only have a two dimensional matrix. Some are not to pretty. </P ></BLOCKQUOTE ></DIV ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN230486" ></A ><H2 >参数</H2 ><P > <P ></P ><DIV CLASS="variablelist" ><DL ><DT ><CODE CLASS="parameter" >fovy</CODE ></DT ><DD ><P > A field-of-view angle in the y direction. </P ></DD ><DT ><CODE CLASS="parameter" >aspect</CODE ></DT ><DD ><P > The aspect ratio of the viewport that is being drawn onto. </P ></DD ><DT ><CODE CLASS="parameter" >near</CODE ></DT ><DD ><P > The near clipping plane. </P ></DD ><DT ><CODE CLASS="parameter" >far</CODE ></DT ><DD ><P > The far clipping plane. </P ></DD ></DL ></DIV > </P ></DIV ><DIV CLASS="refsect1" ><A NAME="AEN230510" ></A ><H2 >返回值</H2 ><P > 无返回值。 </P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="function.swf-ortho.html" ACCESSKEY="P" >上一页</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >起始页</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="function.swf-placeobject.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >swf_ortho</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.swf.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >swf_placeobject</TD ></TR ></TABLE ></DIV ></BODY ></HTML >