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The devel/proj port

proj-9.5.1 – cartographic projection utilities (cvsweb github mirror)

Description

Proj and invproj perform respective forward and inverse transformation
of cartographic data to or from Cartesian data with a wide range of
selectable projection functions (over 100 projections).

Geod and invgeod perform geodesic (Great Circle) computations for
determining latitude, longitude and back azimuth of a terminus point
given a initial point latitude, longitude, azimuth and distance
(direct) or the forward and back azimuths and distance between an
initial and terminus point latitudes and longitudes (inverse).

The proj package now provides builtin datum conversion.
WWW: https://proj.org

Readme

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| Running ${PKGSTEM} on OpenBSD
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Since proj 7, datum grids are available from a CDN at https://cdn.proj.org and
should either be fetched dynamically at runtime (disabled by default, cf
https://proj.org/usage/network.html) or be fetched locally depending on your
work area needs, using the projsync command.

Use projsync --list-files to list the CDN content.

They can either by installed in the user homedir (under ~/.local/share/proj)

$ projsync --file fr_ign_ntf_r93.tif
Downloading from https://cdn.proj.org into /home/user/.local/share/proj
Total to download: 93581 bytes
Downloading https://cdn.proj.org/fr_ign_ntf_r93.tif... (1 / 1)

or systemwide in the default PROJ_LIB dir (under ${TRUEPREFIX}/share/proj, cf
https://proj.org/resource_files.html)

# projsync --system-directory --file fr_ign_ntf_r93.tif
Downloading from https://cdn.proj.org into ${TRUEPREFIX}/share/proj
Total to download: 93581 bytes
Downloading https://cdn.proj.org/fr_ign_ntf_r93.tif... (1 / 1)

If not using the default, make sure to set PROJ_LIB environment variable
accordingly.

Maintainer

Landry Breuil

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