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efficient manner. The image is stored in a tiled, layered format and is presented to the user in pieces for quick zooming and scrolling. Unlike other implementations that offer similar functionalities, GridPix doesn't use plugins or applets -- it is pure HTML.
41 lines
1.2 KiB
Text
41 lines
1.2 KiB
Text
Here's an example to get started. Let's assume you have an image "mypic.jpg".
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(1) djpeg -ppm mypic.jpg | gridpack -o /usr/local/www/data/gridpix/mypic.gpx
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(2) Make sure you have CGI scripts with symlinks enabled on your web server.
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For Apache, you need something like
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ScriptAlias /cgi-bin/ "/usr/local/www/cgi-bin/"
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<Directory "/usr/local/www/cgi-bin">
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AllowOverride None
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Options ExecCGI FollowSymLinks
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Order allow,deny
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Allow from all
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</Directory>
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in your /usr/local/etc/apache/httpd.conf file.
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(3) Use a URL like this to refer to the image:
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http://hostname/cgi-bin/getimg2.cgi?mypic&720&576
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720 and 576 are the width and height of the GridPix window. The default
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tile size is 144 by 144 so choose multiples of 144.
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(4) To pop up a new window, use something like:
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===
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<script language="JavaScript">
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<!--
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function gridpix(pic) {
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window.open('/cgi-bin/getimg2.cgi?' + pic + '&720&576',
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'gridpix',
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'toolbar=no,status=yes,width=850,height=650,directories=no,scrollbars=no,location=no,resize=yes,menubar=no');
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}
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// -->
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</script>
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<a href="javascript:gridpix('mypic')">click here</a>
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===
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For more info, please read the documents in /usr/local/share/doc/gridpix.
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