osmcoastline_segments(1) analyze coastline changes from segment files


osmcoastline_segments [OPTIONS] SEGMENT-FILE1 SEGMENT-FILE2


The osmcoastline program can write out all segments of the coastline into a file (when started with the -S, --write-segments=FILE option). This program can be used to compare two of those segment files in various ways to detect coastline changes between different runs of the osmcoastline program.


-h, --help
Display usage information.
-d, --dump
Dump segment list to stdout in plain text format.
-g, --geom=FILENAME
Write segments to geometry file or database using OGR.
-f, --format=FORMAT
OGR format for writing out geometries.
-V, --version
Display program version and license information.


osmcoastline_segments exits with exit code

if the segment files are the same 1
if the segment files are different 3
if there was a fatal error when running the program 4
if there was a problem with the command line arguments.


Just return 0 or 1 depending on whether the segments are the same in both files:

osmcoastline_segments old.segments new.segments

Dump the list of removed and added segments to stdout:

osmcoastline_segments --dump old.segments new.segments

Create a shapefile with the differences:

osmcoastline_segments --geom=diff.shp old.segments new.segments


Copyright (C) 2012-2016 Jochen Topf <[email protected]>. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.


If you have any questions or want to report a bug, please go to http://osmcode.org/contact.html


Jochen Topf <[email protected]>.