function convertStringPrologPlansToGraphs($prologPlans)
{
//Clean plan for regular expressions processing
$plans = prologPlanCollection::preparePlans($prologPlans);
//Generate an array of all plans and their timepoints
$plansAndTemporalOrderings = prologPlanCollection::organisePlans($plans);
//Convert plans and ordering into a directed graphs
$plansAndTemporalOrderingsSize = sizeof($plansAndTemporalOrderings);
for ($index = 0; $index < $plansAndTemporalOrderingsSize; $index++) {
$orderingCollection = $plansAndTemporalOrderings[$index]['ordering'];
$planCollection = $plansAndTemporalOrderings[$index]['plan'];
$planGraphList[$index] = graphPlan::convertToGraphPlan($orderingCollection, $planCollection);
flush();
}
return $planGraphList;
}
/**
* @return graphPlan
* @param $orderingCollection OrderingCollection
* @param $planCollection PlanCollection
* @desc Creates a graphplan from the orderings and plan actions
*/
function convertToGraphPlan($orderingCollection, $planCollection)
{
$planGraph = new graphPlan();
//The start node will always be the first node
//Otherwise the plans would be undeterministic
$startnode = $planCollection->startNode();
//There will be a node for every timepoint
$nodeList = $orderingCollection->findallTimepoints();
//Find all edges
$edgeList = $orderingCollection->findallEdges();
//Create Nodes
$planGraph->populateNodes($nodeList, $planCollection);
//Create Edges
$planGraph->createEdges($edgeList);
//Set the start Node
$planGraph->setStartNode($startnode->getTimePoint());
return $planGraph;
}