mirror of
https://github.com/janunger/rheinwerk-video-training.git
synced 2024-12-23 21:23:40 +01:00
100 lines
3.5 KiB
HTML
100 lines
3.5 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>Image</title>
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<link type="text/css" rel="stylesheet" href="../fpdf.css">
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</head>
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<body>
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<h1>Image</h1>
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<code>Image(<b>string</b> file [, <b>float</b> x [, <b>float</b> y [, <b>float</b> w [, <b>float</b> h [, <b>string</b> type [, <b>mixed</b> link]]]]]])</code>
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<h2>Description</h2>
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Puts an image. The size it will take on the page can be specified in different ways:
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<ul>
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<li>explicit width and height (expressed in user unit or dpi)</li>
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<li>one explicit dimension, the other being calculated automatically in order to keep the original proportions</li>
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<li>no explicit dimension, in which case the image is put at 96 dpi</li>
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</ul>
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Supported formats are JPEG, PNG and GIF. The GD extension is required for GIF.
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<br>
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<br>
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For JPEGs, all flavors are allowed:
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<ul>
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<li>gray scales</li>
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<li>true colors (24 bits)</li>
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<li>CMYK (32 bits)</li>
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</ul>
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For PNGs, are allowed:
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<ul>
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<li>gray scales on at most 8 bits (256 levels)</li>
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<li>indexed colors</li>
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<li>true colors (24 bits)</li>
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</ul>
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For GIFs: in case of an animated GIF, only the first frame is displayed.<br>
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<br>
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Transparency is supported.<br>
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<br>
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The format can be specified explicitly or inferred from the file extension.<br>
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<br>
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It is possible to put a link on the image.<br>
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<br>
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Remark: if an image is used several times, only one copy is embedded in the file.
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<h2>Parameters</h2>
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<dl class="param">
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<dt><code>file</code></dt>
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<dd>
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Path or URL of the image.
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</dd>
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<dt><code>x</code></dt>
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<dd>
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Abscissa of the upper-left corner. If not specified or equal to <code>null</code>, the current abscissa
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is used.
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</dd>
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<dt><code>y</code></dt>
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<dd>
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Ordinate of the upper-left corner. If not specified or equal to <code>null</code>, the current ordinate
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is used; moreover, a page break is triggered first if necessary (in case automatic page breaking is enabled)
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and, after the call, the current ordinate is moved to the bottom of the image.
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</dd>
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<dt><code>w</code></dt>
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<dd>
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Width of the image in the page. There are three cases:
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<ul>
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<li>If the value is positive, it represents the width in user unit</li>
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<li>If the value is negative, the absolute value represents the horizontal resolution in dpi</li>
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<li>If the value is not specified or equal to zero, it is automatically calculated</li>
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</ul>
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</dd>
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<dt><code>h</code></dt>
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<dd>
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Height of the image in the page. There are three cases:
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<ul>
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<li>If the value is positive, it represents the height in user unit</li>
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<li>If the value is negative, the absolute value represents the vertical resolution in dpi</li>
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<li>If the value is not specified or equal to zero, it is automatically calculated</li>
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</ul>
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</dd>
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<dt><code>type</code></dt>
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<dd>
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Image format. Possible values are (case insensitive): <code>JPG</code>, <code>JPEG</code>, <code>PNG</code> and <code>GIF</code>.
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If not specified, the type is inferred from the file extension.
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</dd>
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<dt><code>link</code></dt>
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<dd>
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URL or identifier returned by AddLink().
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</dd>
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</dl>
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<h2>Example</h2>
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<div class="doc-source">
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<pre><code>// Insert a logo in the top-left corner at 300 dpi
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$pdf->Image('logo.png',10,10,-300);
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// Insert a dynamic image from a URL
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$pdf->Image('http://chart.googleapis.com/chart?cht=p3&chd=t:60,40&chs=250x100&chl=Hello|World',60,30,90,0,'PNG');</code></pre>
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</div>
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<h2>See also</h2>
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<a href="addlink.htm">AddLink</a>
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<hr style="margin-top:1.5em">
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<div style="text-align:center"><a href="index.htm">Index</a></div>
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</body>
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</html>
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