<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <HTML ><HEAD ><TITLE >imagefilledpolygon</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="Image 图像函数" HREF="ref.image.html"><LINK REL="PREVIOUS" TITLE="imagefilledellipse" HREF="function.imagefilledellipse.html"><LINK REL="NEXT" TITLE="imagefilledrectangle" HREF="function.imagefilledrectangle.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.imagefilledellipse.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.imagefilledrectangle.html" ACCESSKEY="N" >下一页</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="function.imagefilledpolygon" ></A >imagefilledpolygon</H1 ><DIV CLASS="refnamediv" ><A NAME="AEN88439" ></A ><P > (PHP 3, PHP 4, PHP 5)</P >imagefilledpolygon -- 画一多边形并填充</DIV ><DIV CLASS="refsect1" ><A NAME="AEN88442" ></A ><H2 >说明</H2 >bool <B CLASS="methodname" >imagefilledpolygon</B > ( resource image, array points, int num_points, int color )<BR ></BR ><P > <B CLASS="function" >imagefilledpolygon()</B > 在 <CODE CLASS="parameter" >image</CODE > 图像中画一个填充了的多边形。 </P ><P > <CODE CLASS="parameter" >points</CODE > 参数是一个按顺序包含有多边形各顶点的 <TT CLASS="literal" >x</TT > 和 <TT CLASS="literal" >y</TT > 坐标的数组。 </P ><P > <CODE CLASS="parameter" >num_points</CODE > 参数是顶点的总数,必须大于 3。 </P ><P > <TABLE WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" CLASS="EXAMPLE" ><TR ><TD ><DIV CLASS="example" ><A NAME="AEN88469" ></A ><P ><B >例 1. <B CLASS="function" >imagefilledpolygon()</B > 例子</B ></P ><TABLE BORDER="0" BGCOLOR="#E0E0E0" CELLPADDING="5" ><TR ><TD ><code><font color="#000000"> <font color="#0000BB"><?php<br /></font><font color="#FF8000">// 建立多边形各顶点坐标的数组<br /></font><font color="#0000BB">$values </font><font color="#007700">= array(<br /> </font><font color="#0000BB">40</font><font color="#007700">, </font><font color="#0000BB">50</font><font color="#007700">, </font><font color="#FF8000">// Point 1 (x, y)<br /> </font><font color="#0000BB">20</font><font color="#007700">, </font><font color="#0000BB">240</font><font color="#007700">, </font><font color="#FF8000">// Point 2 (x, y)<br /> </font><font color="#0000BB">60</font><font color="#007700">, </font><font color="#0000BB">60</font><font color="#007700">, </font><font color="#FF8000">// Point 3 (x, y)<br /> </font><font color="#0000BB">240</font><font color="#007700">, </font><font color="#0000BB">20</font><font color="#007700">, </font><font color="#FF8000">// Point 4 (x, y)<br /> </font><font color="#0000BB">50</font><font color="#007700">, </font><font color="#0000BB">40</font><font color="#007700">, </font><font color="#FF8000">// Point 5 (x, y)<br /> </font><font color="#0000BB">10</font><font color="#007700">, </font><font color="#0000BB">10 </font><font color="#FF8000">// Point 6 (x, y)<br /> </font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 创建图像<br /></font><font color="#0000BB">$image </font><font color="#007700">= </font><font color="#0000BB">imagecreatetruecolor</font><font color="#007700">(</font><font color="#0000BB">250</font><font color="#007700">, </font><font color="#0000BB">250</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 设定颜色<br /></font><font color="#0000BB">$bg </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$image</font><font color="#007700">, </font><font color="#0000BB">200</font><font color="#007700">, </font><font color="#0000BB">200</font><font color="#007700">, </font><font color="#0000BB">200</font><font color="#007700">);<br /></font><font color="#0000BB">$blue </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$image</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 画一个多边形<br /></font><font color="#0000BB">imagefilledpolygon</font><font color="#007700">(</font><font color="#0000BB">$image</font><font color="#007700">, </font><font color="#0000BB">$values</font><font color="#007700">, </font><font color="#0000BB">6</font><font color="#007700">, </font><font color="#0000BB">$blue</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// 输出图像<br /></font><font color="#0000BB">header</font><font color="#007700">(</font><font color="#DD0000">'Content-type: image/png'</font><font color="#007700">);<br /></font><font color="#0000BB">imagepng</font><font color="#007700">(</font><font color="#0000BB">$image</font><font color="#007700">);<br /></font><font color="#0000BB">imagedestroy</font><font color="#007700">(</font><font color="#0000BB">$image</font><font color="#007700">);<br /></font><font color="#0000BB">?></font> </font> </code></TD ></TR ></TABLE ></DIV ></TD ></TR ></TABLE > </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.imagefilledellipse.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.imagefilledrectangle.html" ACCESSKEY="N" >下一页</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >imagefilledellipse</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ref.image.html" ACCESSKEY="U" >上一级</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >imagefilledrectangle</TD ></TR ></TABLE ></DIV ></BODY ></HTML >