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distancematrix

Example showing how to use Google Distance Matrix

Python script showing how to use the Google Distance Matrix API to compute a distance matrix for a set of nodes/coordinates taken from a csv

Disclaimer: This is meant to be an example/proof-of-concept, and is not meant for production use. Please observe the terms and conditions for using Google Apis.

##Examples:

python distance-matrix.py --help

Will produce:

usage: distance-matrix.py [-h] [-g | -rptprefixed | -rptcsv]
						  [-prefixstring PREFIX_STRING] -key API_KEY -if
						  INPUT_FILE -of OUTPUT_FILE [-r] [-u] [-v]

Get distances between nodes using Google Distance Matrix Api

optional arguments:
  -h, --help            show this help message and exit
  -g, --get-distances   use google api to get distances for the nodes in the
						input file
  -rptprefixed, --dump-report-prefixed-record
						use the results from running the file specified by the
						-if/--input-file argument to create a dump output file
						using a prefixed record format
  -rptcsv, --dump-report-csv
						use the results from running the file specified by the
						-if/--input-file argument to create a dump output file
						in the csv format
  -prefixstring PREFIX_STRING, --prefix-string PREFIX_STRING
						string which will be prefixed to records created in
						the "prefixed-record" format
  -key API_KEY, --api-key API_KEY
						api key to use in requests to the distance matrix api
  -if INPUT_FILE, --input-file INPUT_FILE
						Path and filename to the input csv file with
						nodes/points
  -of OUTPUT_FILE, --output-file OUTPUT_FILE
						Path and filename to the output file
  -r, --resume          Resume the job for the input file
  -u, --undirected      Consider NodeA -> NodeB to be the same as NodeB ->
						NodeA
  -v, --verbose         Produce verbose output when running

python distance-matrix.py -if nodes.txt -of matrix.csv -u -key [API-KEY]

Will create an (internal pickle) file with the distance matrix

python distance-matrix.py -if nodes.txt -of matrix.csv -u -key [API-KEY] -rptcsv

Will use the distance matrix created above and produce an output file in the csv format from the distance matrix created above

python distance-matrix.py -if nodes.txt -of matrix.csv -u -key [API-KEY] -rptprefixed -prefixstring myprefix

Will use the distance matrix created above and produce an output file in containing records prefixed with the string 'myprefix'