Solutions

Methods to access, rank and print solutions after a solve.

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Solution pool

getNumberOfSolutions

def getNumberOfSolutions(self) -> int

Returns the number of solutions in the pool.

rankSolutions

def rankSolutions(self, criteria)

Ranks the solution pool according to the given criteria.

• criteria (str) — ranking key. Use "objective" to sort by objective value.

clearSolutions

def clearSolutions(self)

Clears the solution pool.

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Accessing solutions

getSolutionStatus

def getSolutionStatus(self, sol_id) -> int

Returns the status of a solution.

• sol_id (int) — solution position in the pool.

getSolutionObjective

def getSolutionObjective(self, sol_id) -> float

Returns the objective value of a solution.

• sol_id (int) — solution position in the pool.

getSolutionArcCost

def getSolutionArcCost(self, sol_id) -> float

Returns the total arc cost of a solution.

• sol_id (int) — solution position in the pool.

getSolutionNodeCost

def getSolutionNodeCost(self, sol_id) -> float

Returns the total node cost of a solution.

• sol_id (int) — solution position in the pool.

getSolutionTour

def getSolutionTour(self, sol_id) -> list[int]

Returns the tour of a solution as a list of node ids.

• sol_id (int) — solution position in the pool.

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Output

printBestSolution

def printBestSolution(self)

Prints the best solution found.

printAllSolutions

def printAllSolutions(self)

Prints all solutions in the pool.

printNodeCosts

def printNodeCosts(self)

Prints the cost of all nodes.