Generates a networkx.DiGraph from point and line shapefiles.
“The Esri Shapefile or simply a shapefile is a popular geospatial vector data format for geographic information systems software. It is developed and regulated by Esri as a (mostly) open specification for data interoperability among Esri and other software products.” See http://en.wikipedia.org/wiki/Shapefile for additional information.
||Generates a networkx.DiGraph from shapefiles.|
||Writes a networkx.DiGraph to two shapefiles, edges and nodes.|