<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Concatenate two affine transformation matrices</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imageaffine.html">imageaffine</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imageaffinematrixget.html">imageaffinematrixget</a></div> <div class="up"><a href="ref.image.html">GD and Image Functions</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="function.imageaffinematrixconcat" class="refentry"> <div class="refnamediv"> <h1 class="refname">imageaffinematrixconcat</h1> <p class="verinfo">(PHP 5 >= 5.5.0, PHP 7)</p><p class="refpurpose"><span class="refname">imageaffinematrixconcat</span> — <span class="dc-title">Concatenate two affine transformation matrices</span></p> </div> <div class="refsect1 description" id="refsect1-function.imageaffinematrixconcat-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="type">array</span> <span class="methodname"><strong>imageaffinematrixconcat</strong></span> ( <span class="methodparam"><span class="type">array</span> <code class="parameter">$m1</code></span> , <span class="methodparam"><span class="type">array</span> <code class="parameter">$m2</code></span> )</div> <p class="para rdfs-comment"> Returns the concatenation of two affine transformation matrices, what is useful if multiple transformations should be applied to the same image in one go. </p> </div> <div class="refsect1 parameters" id="refsect1-function.imageaffinematrixconcat-parameters"> <h3 class="title">Parameters</h3> <dl> <dt> <code class="parameter">m1</code></dt> <dd> <p class="para"> An affine transformation matrix (an array with keys <em>0</em> to <em>5</em> and float values). </p> </dd> <dt> <code class="parameter">m2</code></dt> <dd> <p class="para"> An affine transformation matrix (an array with keys <em>0</em> to <em>5</em> and float values). </p> </dd> </dl> </div> <div class="refsect1 returnvalues" id="refsect1-function.imageaffinematrixconcat-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> An affine transformation matrix (an array with keys <em>0</em> to <em>5</em> and float values) or <strong><code>FALSE</code></strong> on failure. </p> </div> <div class="refsect1 examples" id="refsect1-function.imageaffinematrixconcat-examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example" id="example-3738"> <p><strong>Example #1 <span class="function"><strong>imageaffinematrixconcat()</strong></span> example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$m1 </span><span style="color: #007700">= </span><span style="color: #0000BB">imageaffinematrixget</span><span style="color: #007700">(</span><span style="color: #0000BB">IMG_AFFINE_TRANSLATE</span><span style="color: #007700">, array(</span><span style="color: #DD0000">'x' </span><span style="color: #007700">= </span><span style="color: #0000BB">2</span><span style="color: #007700">, </span><span style="color: #DD0000">'y' </span><span style="color: #007700">=> </span><span style="color: #0000BB">3</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$m2 </span><span style="color: #007700">= </span><span style="color: #0000BB">imageaffinematrixget</span><span style="color: #007700">(</span><span style="color: #0000BB">IMG_AFFINE_SCALE</span><span style="color: #007700">, array(</span><span style="color: #DD0000">'x' </span><span style="color: #007700">= </span><span style="color: #0000BB">4</span><span style="color: #007700">, </span><span style="color: #DD0000">'y' </span><span style="color: #007700">=> </span><span style="color: #0000BB">5</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">$matrix </span><span style="color: #007700">= </span><span style="color: #0000BB">imageaffinematrixconcat</span><span style="color: #007700">(</span><span style="color: #0000BB">$m1</span><span style="color: #007700">, </span><span style="color: #0000BB">$m2</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">print_r</span><span style="color: #007700">(</span><span style="color: #0000BB">$matrix</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:</p></div> <div class="example-contents screen"> <div class="cdata"><pre> Array ( [0] => 4 [1] => 0 [2] => 0 [3] => 5 [4] => 8 [5] => 15 ) </pre></div> </div> </div> </p> </div> <div class="refsect1 seealso" id="refsect1-function.imageaffinematrixconcat-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><span class="function"><a href="function.imageaffine.html" class="function" rel="rdfs-seeAlso">imageaffine()</a> - Return an image containing the affine transformed src image, using an optional clipping area</span></li> <li class="member"><span class="function"><a href="function.imageaffinematrixget.html" class="function" rel="rdfs-seeAlso">imageaffinematrixget()</a> - Get an affine transformation matrix</span></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="function.imageaffine.html">imageaffine</a></div> <div class="next" style="text-align: right; float: right;"><a href="function.imageaffinematrixget.html">imageaffinematrixget</a></div> <div class="up"><a href="ref.image.html">GD and Image Functions</a></div> <div class="home"><a 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