"Fossies" - the Fresh Open Source Software Archive  

Source code changes of the file "README.TXT" between
dcw-gmt-1.1.2.tar.gz and dcw-gmt-1.1.4.tar.gz

About: Digital Chart of the World polygon data

README.TXT  (dcw-gmt-1.1.2):README.TXT  (dcw-gmt-1.1.4)
# $Id: README.TXT 97 2015-09-02 02:22:44Z pwessel $ $Id: README.TXT 97 2015-09-02 02:22:44Z pwessel $
DCW - The Digital Chart of the World for GMT 5 DCW - The Digital Chart of the World for GMT 5 or later
DCW DCW
Version 1.1.2 Sept 1, 2015 Version 1.1.4 July 1, 2018
Distributed under the Lesser GNU Public License Distributed under the Lesser GNU Public License
This is README.TXT for the DCW - The Digital Chart of the World This is README.TXT for the DCW - The Digital Chart of the World
which is used to produce the gmt-dcw package currently used by which is used to produce the gmt-dcw package currently used by
GMT's pscoast module. For a description of changes between GMT's pscoast module. For a description of changes between
releases, see the ChangeLog file. releases, see the ChangeLog file.
The Digital Chart of the World is a comprehensive 1:1,000,000 scale The Digital Chart of the World is a comprehensive 1:1,000,000 scale
vector basemap of the world. The charts were designed to meet the needs vector basemap of the world. The charts were designed to meet the needs
of pilots and air crews in medium-and low-altitude en route navigation of pilots and air crews in medium-and low-altitude en route navigation
skipping to change at line 33 skipping to change at line 33
seems to have disappeared. Other sites with DCW data include the GeoCommunity seems to have disappeared. Other sites with DCW data include the GeoCommunity
at http://data.geocomm.com/readme/dcw/dcw.html. at http://data.geocomm.com/readme/dcw/dcw.html.
The gmt-dcw version has converted the (at present) 523 individual The gmt-dcw version has converted the (at present) 523 individual
polygon files to a single netCDF 4 file and compressed the data by polygon files to a single netCDF 4 file and compressed the data by
using rescaled short integer positioning. Note that many of these, using rescaled short integer positioning. Note that many of these,
especially state boundaries for China, Russia, India, Argentina were especially state boundaries for China, Russia, India, Argentina were
not in the original DCW but have been added later from other sources, not in the original DCW but have been added later from other sources,
such as from http://www.gadm.org. such as from http://www.gadm.org.
If you are building GMT 5 from source then you should set the parameter If you are building GMT from source then you should set the parameter
DCW_ROOT in the cmake/ConfigUser.cmake to point to the directory where DCW_ROOT in the cmake/ConfigUser.cmake to point to the directory where
gmt-dcw.nc has been placed. If you add this file later you can always gmt-dcw.nc has been placed. If you add this file later you can always
place it in your user ~/.gmt directory or set the DIR_DCW parameter in place it in your user ~/.gmt directory or set the DIR_DCW parameter in
your gmt.conf settings. your gmt.conf settings.
The GMT Team, Sept 2015 The GMT Team, July 2018
 End of changes. 5 change blocks. 
4 lines changed or deleted 4 lines changed or added

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