*/
require_once '../db.php';
require_once '../graph.php';
$author_id = 0;
if (isset($_GET['author_id'])) {
$author_id = $_GET['author_id'];
}
if ($author_id != 0) {
// 1. get coauthors
$coauthors = db_retrieve_coauthors($author_id);
//print_r($coauthors);
$n = count($coauthors->coauthors);
$G = new Graph();
for ($i = 0; $i < $n; $i++) {
$sourceNode = $G->AddNode($coauthors->coauthors[$i]->cluster_id, $coauthors->coauthors[$i]->forename . ' ' . $coauthors->coauthors[$i]->lastname);
for ($j = $i + 1; $j < $n; $j++) {
if ($coauthors->coauthors[$i]->cluster_id != $coauthors->coauthors[$j]->cluster_id) {
$num = db_number_coauthored_references($coauthors->coauthors[$i]->id, $coauthors->coauthors[$j]->id);
if ($num > 0) {
$targetNode = $G->AddNode($coauthors->coauthors[$j]->cluster_id, $coauthors->coauthors[$j]->forename . ' ' . $coauthors->coauthors[$j]->lastname);
$G->AddEdge($sourceNode, $targetNode, $num);
}
}
}
}
// header("Content-type: text/x-graphviz");
header("Content-type: text/plain");
echo $G->WriteDot();
} else {
echo 'No author_id supplied';
}
