/// <summary>
/// Returns the cheapest incoming plan edge and its cost,
/// excluding nodes contained within the given top super node (if given)
/// </summary>
public override PlanEdge GetCheapestIncoming(PlanPseudoNode excludeTopNode, out float minCost)
{
minCost = float.MaxValue;
PlanEdge minEdge = null;
PlanPseudoNode current = Child;
do
{
float curCost;
PlanEdge curEdge = current.GetCheapestIncoming(excludeTopNode, out curCost);
if (curEdge != null)
{
PlanPseudoNode target = curEdge.Target;
while (target.SuperNode != this)
{
target = target.SuperNode;
}
if (PreferNewEdge(minEdge, minCost, curEdge, curCost))
{
minCost = curCost;
minEdge = curEdge;
}
}
current = current.IncomingMSAEdge.Source;
while (current.SuperNode != this)
{
current = current.SuperNode;
}
}while(current != Child);
return(minEdge);
}
public PlanSuperNode(PlanPseudoNode cycleNode)
{
Child = cycleNode;
// Find cheapest edge within cycle
PlanPseudoNode current = Child;
minCycleEdgeCost = float.MaxValue;
do
{
current.SuperNode = this;
if (current.IncomingMSAEdge.mstCost < minCycleEdgeCost)
{
minCycleEdgeCost = current.IncomingMSAEdge.mstCost;
}
current = current.IncomingMSAEdge.Source;
while (current.SuperNode != null && current.SuperNode != this)
{
current = current.SuperNode;
}
}while(current != Child);
// Adjust costs of incoming edges
foreach (PlanEdge edge in Incoming)
{
PlanPseudoNode curTarget = edge.Target;
while (curTarget.SuperNode != this)
{
curTarget = curTarget.SuperNode;
}
edge.mstCost -= curTarget.IncomingMSAEdge.mstCost - minCycleEdgeCost;
}
// Find cheapest incoming edge and set Child appropriately
float cost;
IncomingMSAEdge = GetCheapestIncoming(this, out cost);
Child = IncomingMSAEdge.Target;
while (Child.SuperNode != this)
{
Child = Child.SuperNode;
}
}
/// <summary>
/// Returns the cheapest incoming plan edge and its cost,
/// excluding nodes contained within the given top super node (if given)
/// </summary>
public override PlanEdge GetCheapestIncoming(PlanPseudoNode excludeTopNode, out float minCost)
{
minCost = float.MaxValue;
PlanEdge minEdge = null;
foreach (PlanEdge edge in IncomingEdges)
{
if (excludeTopNode != null && edge.Source.TopNode == excludeTopNode)
{
continue;
}
if (PreferNewEdge(minEdge, minCost, edge, edge.mstCost))
{
minCost = edge.mstCost;
minEdge = edge;
}
}
return(minEdge);
}
/// <summary> /// Returns the cheapest incoming plan edge and its cost, /// excluding nodes contained within the given top super node (if given) /// </summary> public abstract PlanEdge GetCheapestIncoming(PlanPseudoNode excludeTopNode, out float cost);
/// <summary> /// Returns the cheapest incoming plan edge and its cost, /// excluding nodes contained within the given top super node (if given) /// </summary> public abstract PlanEdge GetCheapestIncoming(PlanPseudoNode excludeTopNode, out float cost);
/// <summary>
/// Returns the cheapest incoming plan edge and its cost,
/// excluding nodes contained within the given top super node (if given)
/// </summary>
public override PlanEdge GetCheapestIncoming(PlanPseudoNode excludeTopNode, out float minCost)
{
minCost = float.MaxValue;
PlanEdge minEdge = null;
PlanPseudoNode current = Child;
do
{
float curCost;
PlanEdge curEdge = current.GetCheapestIncoming(excludeTopNode, out curCost);
if (curEdge != null)
{
PlanPseudoNode target = curEdge.Target;
while (target.SuperNode != this)
target = target.SuperNode;
if (PreferNewEdge(minEdge, minCost, curEdge, curCost))
{
minCost = curCost;
minEdge = curEdge;
}
}
current = current.IncomingMSAEdge.Source;
while (current.SuperNode != this)
current = current.SuperNode;
}
while (current != Child);
return minEdge;
}
public PlanSuperNode(PlanPseudoNode cycleNode)
{
Child = cycleNode;
// Find cheapest edge within cycle
PlanPseudoNode current = Child;
minCycleEdgeCost = float.MaxValue;
do
{
current.SuperNode = this;
if (current.IncomingMSAEdge.mstCost < minCycleEdgeCost)
minCycleEdgeCost = current.IncomingMSAEdge.mstCost;
current = current.IncomingMSAEdge.Source;
while (current.SuperNode != null && current.SuperNode != this)
current = current.SuperNode;
}
while (current != Child);
// Adjust costs of incoming edges
foreach (PlanEdge edge in Incoming)
{
PlanPseudoNode curTarget = edge.Target;
while (curTarget.SuperNode != this)
curTarget = curTarget.SuperNode;
edge.mstCost -= curTarget.IncomingMSAEdge.mstCost - minCycleEdgeCost;
}
// Find cheapest incoming edge and set Child appropriately
float cost;
IncomingMSAEdge = GetCheapestIncoming(this, out cost);
Child = IncomingMSAEdge.Target;
while (Child.SuperNode != this)
Child = Child.SuperNode;
}
/// <summary>
/// Returns the cheapest incoming plan edge and its cost,
/// excluding nodes contained within the given top super node (if given)
/// </summary>
public override PlanEdge GetCheapestIncoming(PlanPseudoNode excludeTopNode, out float minCost)
{
minCost = float.MaxValue;
PlanEdge minEdge = null;
foreach (PlanEdge edge in IncomingEdges)
{
if (excludeTopNode != null && edge.Source.TopNode == excludeTopNode) continue;
if (PreferNewEdge(minEdge, minCost, edge, edge.mstCost))
{
minCost = edge.mstCost;
minEdge = edge;
}
}
return minEdge;
}
