Chinese postman problem

This is a Python program to solve the Chinese postman problem.

Requirements

• Python2.7
• networkx

Usage

Input data file must be in CSV format, with each row containing the following columns:

• Start node ID
• End node ID
• Segment length in meters
• Segment name or ID
• Start longitude, for example 18.4167
• Start latitude, for example -33.9167
• End longitude
• End latitude

Example:

Start Node,End Node,Segment Length,Segment ID,Start Longitude,Start Latitude,End Longitude,End Latitude
1,13,57,Segment 1,18.4167,-33.9167,18.6532,-33.8561
13,22,80,Segment 2,18.6532,-33.8561,18.7650,-33.7930

Then run (assuming the file is saved as input.csv):

python postman.py --csv path.csv --gpx path.gpx input.csv

The segment ID and GPS coordinates in the input file are not used for any calculations, but are used for the CSV and GPX output.

License

Copyright (c) 2012, Ralf Kistner All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.