#include <constraint_solver.h>

Public Attributes
std::vector< IntVar * >	nexts

std::vector< IntVar * >	paths

std::vector< IntVar * >	forces

std::vector< IntVar * >	distances

std::vector< int64_t >	path_unit_costs

std::vector< bool >	path_used_when_empty

std::vector< int64_t >	path_starts

std::vector< int64_t >	path_ends

std::vector< IntVar * >	costs

Detailed Description

A constraint that maintains the energy cost of paths. Energy is the integral of force applied over distance. More formally, the energy used on a path is: energy[path] = sum(node | paths[node] == path /\ node not end) forces[next[node]] * distances[node] where forces[n] is the force needed to move loads accumulated until, but excluding weight and distances[n] is the distance from n to its successor. For instance, if a path has a route with two pickup/delivery pairs where the first shipment weighs 1 unit, the second weighs 2 units, and the distance between nodes is one, the {force/distance} of nodes would be: start{0/1} P1{0/1} P2{1/1} D1{3/1} D2{2/1} end{0/0}. The energy would be 0*1 + 1*1 + 3*1 + 2*1 + 0*1. The cost of each path is costs[path] = energy[path] * path_unit_costs[path].

Definition at line 1804 of file constraint_solver.h.

Member Data Documentation

◆ costs

std::vector<IntVar*> operations_research::Solver::PathEnergyCostConstraintSpecification::costs

Definition at line 1813 of file constraint_solver.h.

◆ distances

std::vector<IntVar*> operations_research::Solver::PathEnergyCostConstraintSpecification::distances

Definition at line 1808 of file constraint_solver.h.

◆ forces

std::vector<IntVar*> operations_research::Solver::PathEnergyCostConstraintSpecification::forces

Definition at line 1807 of file constraint_solver.h.

◆ nexts

std::vector<IntVar*> operations_research::Solver::PathEnergyCostConstraintSpecification::nexts

Definition at line 1805 of file constraint_solver.h.

◆ path_ends

std::vector<int64_t> operations_research::Solver::PathEnergyCostConstraintSpecification::path_ends

Definition at line 1812 of file constraint_solver.h.

◆ path_starts

std::vector<int64_t> operations_research::Solver::PathEnergyCostConstraintSpecification::path_starts

Definition at line 1811 of file constraint_solver.h.

◆ path_unit_costs

std::vector<int64_t> operations_research::Solver::PathEnergyCostConstraintSpecification::path_unit_costs

Definition at line 1809 of file constraint_solver.h.

◆ path_used_when_empty

std::vector<bool> operations_research::Solver::PathEnergyCostConstraintSpecification::path_used_when_empty

Definition at line 1810 of file constraint_solver.h.

◆ paths

std::vector<IntVar*> operations_research::Solver::PathEnergyCostConstraintSpecification::paths

Definition at line 1806 of file constraint_solver.h.

The documentation for this struct was generated from the following file:

ortools/constraint_solver/constraint_solver.h

Public Attributes