kieranbarnes

I really like JPGraph now. For too long I hated it as a clunky, bloated rather useless graphing library (Sorry!), but now I like it. Really like it.

Over the next few months I’ll be doing a series of articles on using JPGraph.

For now, heres my favourite feature at the moment.

Save the following code as make_image_led.php

require_once '_common_includes/jpgraph/jpgraph.php';
require_once '_common_includes/jpgraph/jpgraph_led.php';
$_GET['value'] = str_pad($_GET['value'],’6′,’0′,STR_PAD_LEFT);
$led = new DigitalLED74();
$led->SetSupersampling(4);
$led->StrokeNumber($_GET['value'],LEDC_BLUE);

To generate an image, just call from another page;
echo '<img src="make_image_led?value='.$NUMBER.'" alt="image" />';

I pull the number from the database;
$count_1_rs = $conn->CacheExecute(180,'SELECT COUNT(id) AS id FROM SOME_TABLE;');
echo '<img src="http://bloke.org/wordpress/wp-admin/make_image_led?value=%27.$count_1_rs-%3Efields%5B%27id%27%5D.%27" alt="image" />';

Which generates one of the following;

Nice, huh?

This entry was posted on Wednesday, July 18th, 2007 at 15:37 and is filed under PHP. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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