function.imagefilledarc.html
来自「php的帮助文档,涉及到PHP的案例和基本语法,以及实际应用内容」· HTML 代码 · 共 230 行 · 第 1/2 页
HTML
230 行
<p class="para"> The arc start angle, in degrees. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">end</tt></i></span> <dd> <p class="para"> The arc end angle, in degrees. 0掳 is located at the three-o'clock position, and the arc is drawn clockwise. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">color</tt></i></span> <dd> <p class="para"> A color identifier created with <a href="function.imagecolorallocate.html" class="function">imagecolorallocate()</a>. </p> </dd> </dt> <dt> <span class="term"><i><tt class="parameter">style</tt></i></span> <dd> <p class="para"> A bitwise OR of the following possibilities: <ol class="orderedlist"> <li class="listitem"><span class="simpara"><b><tt>IMG_ARC_PIE</tt></b></span></li> <li class="listitem"><span class="simpara"><b><tt>IMG_ARC_CHORD</tt></b></span></li> <li class="listitem"><span class="simpara"><b><tt>IMG_ARC_NOFILL</tt></b></span></li> <li class="listitem"><span class="simpara"><b><tt>IMG_ARC_EDGED</tt></b></span></li> </ol> <b><tt>IMG_ARC_PIE</tt></b> and <b><tt>IMG_ARC_CHORD</tt></b> are mutually exclusive; <b><tt>IMG_ARC_CHORD</tt></b> just connects the starting and ending angles with a straight line, while <b><tt>IMG_ARC_PIE</tt></b> produces a rounded edge. <b><tt>IMG_ARC_NOFILL</tt></b> indicates that the arc or chord should be outlined, not filled. <b><tt>IMG_ARC_EDGED</tt></b>, used together with <b><tt>IMG_ARC_NOFILL</tt></b>, indicates that the beginning and ending angles should be connected to the center - this is a good way to outline (rather than fill) a 'pie slice'. </p> </dd> </dt> </dl> </p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <b><tt>TRUE</tt></b> on success or <b><tt>FALSE</tt></b> on failure. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 Creating a 3D looking pie</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// create image<br /></span><span style="color: #0000BB">$image </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatetruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// allocate some solors<br /></span><span style="color: #0000BB">$white </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">0xFF</span><span style="color: #007700">, </span><span style="color: #0000BB">0xFF</span><span style="color: #007700">, </span><span style="color: #0000BB">0xFF</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$gray </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">0xC0</span><span style="color: #007700">, </span><span style="color: #0000BB">0xC0</span><span style="color: #007700">, </span><span style="color: #0000BB">0xC0</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$darkgray </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">0x90</span><span style="color: #007700">, </span><span style="color: #0000BB">0x90</span><span style="color: #007700">, </span><span style="color: #0000BB">0x90</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$navy </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">, </span><span style="color: #0000BB">0x80</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$darknavy </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">, </span><span style="color: #0000BB">0x50</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$red </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">0xFF</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$darkred </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecolorallocate</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">0x90</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">, </span><span style="color: #0000BB">0x00</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// make the 3D effect<br /></span><span style="color: #007700">for (</span><span style="color: #0000BB">$i </span><span style="color: #007700">= </span><span style="color: #0000BB">60</span><span style="color: #007700">; </span><span style="color: #0000BB">$i </span><span style="color: #007700">> </span><span style="color: #0000BB">50</span><span style="color: #007700">; </span><span style="color: #0000BB">$i</span><span style="color: #007700">--) {<br /> </span><span style="color: #0000BB">imagefilledarc</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">45</span><span style="color: #007700">, </span><span style="color: #0000BB">$darknavy</span><span style="color: #007700">, </span><span style="color: #0000BB">IMG_ARC_PIE</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">imagefilledarc</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">45</span><span style="color: #007700">, </span><span style="color: #0000BB">75 </span><span style="color: #007700">, </span><span style="color: #0000BB">$darkgray</span><span style="color: #007700">, </span><span style="color: #0000BB">IMG_ARC_PIE</span><span style="color: #007700">);<br /> </span><span style="color: #0000BB">imagefilledarc</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">$i</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">75</span><span style="color: #007700">, </span><span style="color: #0000BB">360 </span><span style="color: #007700">, </span><span style="color: #0000BB">$darkred</span><span style="color: #007700">, </span><span style="color: #0000BB">IMG_ARC_PIE</span><span style="color: #007700">);<br />}<br /><br /></span><span style="color: #0000BB">imagefilledarc</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">45</span><span style="color: #007700">, </span><span style="color: #0000BB">$navy</span><span style="color: #007700">, </span><span style="color: #0000BB">IMG_ARC_PIE</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagefilledarc</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">45</span><span style="color: #007700">, </span><span style="color: #0000BB">75 </span><span style="color: #007700">, </span><span style="color: #0000BB">$gray</span><span style="color: #007700">, </span><span style="color: #0000BB">IMG_ARC_PIE</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagefilledarc</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">50</span><span style="color: #007700">, </span><span style="color: #0000BB">75</span><span style="color: #007700">, </span><span style="color: #0000BB">360 </span><span style="color: #007700">, </span><span style="color: #0000BB">$red</span><span style="color: #007700">, </span><span style="color: #0000BB">IMG_ARC_PIE</span><span style="color: #007700">);<br /><br /><br /></span><span style="color: #FF8000">// flush image<br /></span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">'Content-type: image/png'</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagepng</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$image</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output something similar to:</p></div> <div class="mediaobject"> <div class="imageobject"> <img src="figures/image.imagefilledarc.png" /> </div> </div> </div> </p> </div> <div class="refsect1 notes"> <h3 class="title">Notes</h3> <blockquote><p><b class="note">Note</b>: <span class="simpara">This function requires GD 2.0.1 or later (2.0.28 or later is recommended).</span></p></blockquote> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imagefill.html">imagefill</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imagefilledellipse.html">imagefilledellipse</a></div> <div class="up"><a href="ref.image.html">GD Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>
⌨️ 快捷键说明
复制代码Ctrl + C
搜索代码Ctrl + F
全屏模式F11
增大字号Ctrl + =
减小字号Ctrl + -
显示快捷键?