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A bunch of utilities for working with geographic data and files. This started out when I wanted to clean and analyze GPS tracks from my various devices. It moved into its own project when friends became interested. You're welcome to use them, and I believe all of the calculations are correct, but please don't complain if my function says that you ran 1.23 miles and your watch says 1.26.

There are two sub-projects:

  • lib for reusable library classes.
  • util for specific utility programs.

The package structure starts with com.kdgregory.geoutil, followed by lib or util. The lib package has several sub-packages:

  • core contains core geographic functionality such as distance calculations and tools for managing lists of geographic points.
  • gpx is an (incomplete) data model for the GPX file format.
  • kml is an (incomplete) data model for the KML file format.

To build, run mvn package from the top-level directory (or mvn install if you plan to use the library in your own code).

The utilities are packaged as a single "uber-JAR"; to run them, use the following command (replacing CLASSNAME with the fully-qualified classname of the utility that you want to run):

java -cp util/target/geoutil-*.jar CLASSNAME

All of the utilities will exit with a usage message if you invoke them without command-line parameters. BEWARE that most of the utilities overwrite the original file; make a backup if you don't want this to happen.