U h @s.dZddlmZddlZddlmmZ ddl Z ej ddddZ e e dZded<e ZeeeD]dZeed eeD]LZe eedeedeed eed ZeZe jeeed qqje je d d ZeejeZejeed d deje ededddde dee!dS)ac ========================== Traveling Salesman Problem ========================== This is an example of a drawing solution of the traveling salesman problem The function is used to produce the solution is christofides, where given a set of nodes, it calculates the route of the nodes that the traveler has to follow in order to minimize the total cost. Ng?)Zradiusseedpos)?r)weightrZbluer) edge_colorwidthTZred)Z with_labelsZedgelistr Z node_sizer zThe route of the traveller is:)"__doc__Zmatplotlib.pyplotZpyplotZpltZnetworkxZnxZ!networkx.algorithms.approximationZ algorithmsZ approximationZnx_appmathZrandom_geometric_graphGZget_node_attributesrcopyHrangelenijhypotdistZadd_edgeZ christofidescyclelistutilsZpairwiseZ edge_listZdraw_networkx_edgesZ draw_networkxprintshowrrk/tmp/pip-unpacked-wheel-j2te_plx/networkx-3.1.data/data/share/doc/networkx-3.1/examples/drawing/plot_tsp.pys6  4