ARC Triples Visualizer Plugin

/* ARC2 static class inclusion */ 
include_once('path/to/arc/ARC2.php');

/* configuration */ 
$config = array(
  /* path to dot */
  'graphviz_path' => '/usr/local/bin/dot',
  /* tmp dir (default: '/tmp/') */
  'graphviz_temp' => '/usr/local/tmp/',
  /* pre-defined namespace prefixes (optional) */
  'ns' => array('foaf' => 'http://xmlns.com/foaf/0.1/')
);

/* instantiation */
$viz = ARC2::getComponent('TriplesVisualizerPlugin', $config);
$triples = ...; /* e.g. from parse() or a "SELECT ?s ?p ?o" query */

/* display an svg image */
$svg = $viz->draw($triples, 'svg', 'base64');
echo '<embed type="image/svg+xml" src="data:image/svg+xml;base64,' . $svg . '"/>';

/* display a png image */
$png = $viz->draw($triples, 'png', 'base64');
echo '<img src="data:image/png;base64,' . $png . '"/>';

/* generate a dot file */
$dot_src = $viz->dot($triples);