···
stdenv.mkDerivation (finalAttrs: {
11
-
url = "ftp://ftp.soest.hawaii.edu/gmt/dcw-gmt-${finalAttrs.version}.tar.gz";
12
-
sha256 = "sha256-S7hA0HXIuj4UrrQc8XwkI2v/eHVmMU+f91irmXd0XZk=";
11
+
src = fetchFromGitHub {
12
+
owner = "GenericMappingTools";
14
+
tag = finalAttrs.version;
15
+
hash = "sha256-OgFonNbhvzRfQZksnwIbgASbMGnL0bmD4wkXZBl3kIU=";
···
21
-
homepage = "https://www.soest.hawaii.edu/pwessel/dcw/";
24
+
homepage = "https://github.com/GenericMappingTools/dcw-gmt";
description = "Vector basemap of the world, for use with GMT";
24
-
DCW-GMT is an enhancement to the original 1:1,000,000 scale vector basemap
25
-
of the world, available from the Princeton University Digital Map and
26
-
Geospatial Information Center. It contains more state boundaries (the
27
-
largest 8 countries are now represented) than the original data
28
-
source. Information about DCW can be found on Wikipedia
29
-
(https://en.wikipedia.org/wiki/Digital_Chart_of_the_World). This data is
30
-
for use by GMT, the Generic Mapping Tools.
27
+
The Digital Chart of the World is a comprehensive 1:1,000,000 scale vector
28
+
basemap of the world. The charts were designed to meet the needs of pilots
29
+
and air crews in medium- and low-altitude en route navigation and to
30
+
support military operational planning, intelligence briefings, and other
31
+
needs. For basic background information about DCW, see the [Wikipedia
32
+
entry](http://en.wikipedia.org/wiki/Digital_Chart_of_the_World).
34
+
DCW-GMT is an enhancement to DCW in a few ways:
36
+
- It contains more state boundaries (the largest 8 countries, Great Britain and Norway are now represented).
37
+
- The data have been reformatted to save space and are distributed as a single deflated netCDF-4 file.
license = licenses.lgpl3Plus;
maintainers = with lib.maintainers; [ tviti ];