Returns all nodes.
string A string representation of all nodes
private function addNodes() {
$code = '';
foreach ($this->nodes as $id => $node) {
$aliases = $this
->getAliases($id);
$code .= sprintf(" node_%s [label=\"%s\\n%s\\n\", shape=%s%s];\n", $this
->dotize($id), $id . ($aliases ? ' (' . implode(', ', $aliases) . ')' : ''), $node['class'], $this->options['node']['shape'], $this
->addAttributes($node['attributes']));
}
return $code;
}