NAME¶
nad2bin - convert nad ASCII files into binary format usable by nad2nad
DESCRIPTION¶
This command is undocumented upstream. This very rough documentation was quickly
assembled by your friendly Debian maintainer (who doesn't use this command,
and so is not the best person to document it!).
The
proj package includes the
nad2nad binary, the North American
Datum conversion filter used to convert data between North America Datum 1927
(NAD27) and North American Datum 1983, and
cs2cs a binary that performs
transformation between the source and destination cartographic coordinate
system on a set of input points. The coordinate system transformation can
include translation between projected and geographic coordinates as well as
the application of datum shifts.
See the
nad2nad(1) and
cs2cs(1) man pages for more information.
nad2nad and
cs2cs need arch-dependent conversion data files in a
library directory,
/usr/share/proj/ Those files are included in the
proj Debian package since 4.6.1-5. To produce/update them yourself, get the
*.lla files from
http://download.osgeo.org/proj/proj-datumgrid-1.5.zip
and then run
nad2bin to produce the binary files used by
nad2nad
and
cs2cs like so:
# nad2bin < conus.lla /usr/share/proj/conus
Test nad2nad with the following example:
$ nad2nad -i 83 -o 27 -r conus << EOF
71d14'58.27"W 44d20'15.227"N
EOF
It should produce:
71d15'W 44d20'15"N
SEE ALSO¶
nad2nad(1), cs2cs(1)
AUTHOR¶
This manual page by Peter S Galbraith <psg@debian.org>.