Description: function to calculate total distance of a route. evaluate function. parameters: route : list return : total d

Creates callback to return distance between locations.

generate number of locations randomly in a block unit default TSP : num_vehicles=1,depot=0

function to plot locations and route

This method is to add constraints @throws IloException

This method is to create decision variables @throws IloException

This method is to create objective function @throws IloException

This method is to solve model @return values of objective function and decision variables @throws IloException

This method is to bulidModel @param transportation_problem's data @return transportation_problem's model @throws IloException

function to Swap positions of two elements in an arr Args: int,int,list s1 : target 1 s2 : target 2

function to get the initial solution,there two different way to generate route_init. Args: num : int

input: x_value的矩阵 output:一条路径，[0, 4, 3, 7, 1, 2, 5, 8, 9, 6, 0]，像这样

input: x_value�ľ��� output:һ��·����[0, 4, 3, 7, 1, 2, 5, 8, 9, 6, 0]��������

Description: function to plot

function to plot locations

function to read solomom data from .txt files, notice that it must be solomon dataset INPUT @ data : class Data

Description: load solomon dataset

tabu search

parameters definition