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121 lines
8.5 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>Sets position for text output</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.ps-set-text-pos" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">ps_set_text_pos</h1>
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<p class="verinfo">(PECL ps >= 1.1.0)</p><p class="refpurpose"><span class="refname">ps_set_text_pos</span> — <span class="dc-title">Sets position for text output</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.ps-set-text-pos-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>ps_set_text_pos</strong></span>
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( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$psdoc</code></span>
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, <span class="methodparam"><span class="type">float</span> <code class="parameter">$x</code></span>
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, <span class="methodparam"><span class="type">float</span> <code class="parameter">$y</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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Set the position for the next text output. You may alternatively set the x
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and y value separately by calling <span class="function"><a href="ps_set_value.html" class="function">ps_set_value()</a></span> and
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choosing <em>textx</em> respectively <em>texty</em> as
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the value name.
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</p>
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<p class="para">
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If you want to output text at a certain position it is more convenient
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to use <span class="function"><a href="ps_show_xy.html" class="function">ps_show_xy()</a></span> instead of setting the text position
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and calling <span class="function"><a href="ps_show.html" class="function">ps_show()</a></span>.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.ps-set-text-pos-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">psdoc</code></dt>
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<dd>
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<p class="para">
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Resource identifier of the postscript file
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as returned by <span class="function"><a href="ps_new.html" class="function">ps_new()</a></span>.
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</p>
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</dd>
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<dt>
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<code class="parameter">x</code></dt>
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<dd>
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<p class="para">
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x-coordinate of the new text position.
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</p>
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</dd>
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<dt>
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<code class="parameter">y</code></dt>
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<dd>
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<p class="para">
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y-coordinate of the new text position.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.ps-set-text-pos-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.ps-set-text-pos-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-4231">
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<p><strong>Example #1 Placing text at a given position</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br />$ps </span><span style="color: #007700">= </span><span style="color: #0000BB">ps_new</span><span style="color: #007700">();<br />if (!</span><span style="color: #0000BB">ps_open_file</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"text.ps"</span><span style="color: #007700">)) {<br /> print </span><span style="color: #DD0000">"Cannot open PostScript file\n"</span><span style="color: #007700">;<br /> exit;<br />}<br /><br /></span><span style="color: #0000BB">ps_set_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"Creator"</span><span style="color: #007700">, </span><span style="color: #DD0000">"rectangle.php"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ps_set_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"Author"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Uwe Steinmann"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ps_set_info</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"Title"</span><span style="color: #007700">, </span><span style="color: #DD0000">"Text placement example"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">ps_begin_page</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #0000BB">596</span><span style="color: #007700">, </span><span style="color: #0000BB">842</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$psfont </span><span style="color: #007700">= </span><span style="color: #0000BB">ps_findfont</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"Helvetica"</span><span style="color: #007700">, </span><span style="color: #DD0000">""</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ps_setfont</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #0000BB">$psfont</span><span style="color: #007700">, </span><span style="color: #0000BB">8.0</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ps_show_xy</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"Some text at (100, 100)"</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: #0000BB">ps_set_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"textx"</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ps_set_value</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"texty"</span><span style="color: #007700">, </span><span style="color: #0000BB">120</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ps_show</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">, </span><span style="color: #DD0000">"Some text at (100, 120)"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">ps_end_page</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">ps_delete</span><span style="color: #007700">(</span><span style="color: #0000BB">$ps</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.ps-set-text-pos-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="ps_set_value.html" class="function" rel="rdfs-seeAlso">ps_set_value()</a> - Sets certain values</span></li>
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<li class="member"><span class="function"><a href="ps_show.html" class="function" rel="rdfs-seeAlso">ps_show()</a> - Output text</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |