Addapted new version of network core concept in Python to NetworkX
Addapted new version of network core concept in Python to NetworkX

spatial-ucsb/ConceptsOfSpatialInformation,liangcun/ConceptsOfSpatialInformation,liangcun/ConceptsOfSpatialInformation,spatial-ucsb/ConceptsOfSpatialInformation,spatial-ucsb/ConceptsOfSpatialInformation,liangcun/ConceptsOfSpatialInformation