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.TH "PROJSYNC" "1" "02 juin 2025" "9.6" "PROJ"
.SH NAME
projsync \- Downloading tool of resource files
.SH SYNOPSIS
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.INDENT 3.5
.nf
\fBprojsync\fP
.in +2
[\-\-endpoint URL]
[\-\-local\-geojson\-file FILENAME]
([\-\-user\-writable\-directory] | [\-\-system\-directory] | [\-\-target\-dir DIRNAME])
[\-\-bbox west_long,south_lat,east_long,north_lat]
[\-\-spatial\-test contains|intersects]
[\-\-source\-id ID] [\-\-area\-of\-use NAME]
[\-\-file NAME]
[\-\-all] [\-\-exclude\-world\-coverage]
[\-\-quiet | \-\-verbose] [\-\-dry\-run] [\-\-list\-files]
[\-\-no\-version\-filtering]
.in -2
.fi
.sp
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.SH DESCRIPTION
.sp
\fI\%projsync\fP is a program that downloads remote resource files
into a local directory. This is an alternative to downloading a proj\-data\-X.Y.Z
archive file, or using the on\-demand \fI\%networking capabilities\fP of PROJ.
.sp
The following control parameters can appear in any order:
.INDENT 0.0
.TP
.B \-\-endpoint URL
Defines the URL where to download the master \fBfiles.geojson\fP file and then
the resource files. Defaults to the value set in \fI\%proj.ini\fP
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.TP
.B \-\-local\-geojson\-file FILENAME
Defines the filename for the master GeoJSON files that references resources.
Defaults to \fB${endpoint}/files.geojson\fP
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.TP
.B \-\-user\-writable\-directory
Specifies that resource files must be downloaded in the
\fI\%user writable directory\fP\&. This is the default.
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.TP
.B \-\-system\-directory
Specifies that resource files must be downloaded in the
${installation_prefix}/share/proj directory. The user launching projsync
should make sure it has writing rights in that directory.
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.TP
.B \-\-target\-dir DIRNAME
Directory into which resource files must be downloaded.
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.TP
.B \-\-bbox west_long,south_lat,east_long,north_lat
Specify an area of interest to restrict the resources to download.
The area of interest is specified as a
bounding box with geographic coordinates, expressed in degrees in a
unspecified geographic CRS.
\fIwest_long\fP and \fIeast_long\fP should be in the [\-180,180] range, and
\fIsouth_lat\fP and \fInorth_lat\fP in the [\-90,90]. \fIwest_long\fP is generally lower than
\fIeast_long\fP, except in the case where the area of interest crosses the antimeridian.
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.TP
.B \-\-spatial\-test contains|intersects
Specify how the extent of the resource files
are compared to the area of use specified explicitly with \fI\%\-\-bbox\fP\&.
By default, any resource files whose extent intersects the value specified
by \fI\%\-\-bbox\fP will be selected.
If using the \fBcontains\fP strategy, only resource files whose extent is
contained in the value specified by \fI\%\-\-bbox\fP will be selected.
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.TP
.B \-\-source\-id ID
Restrict resource files to be downloaded to those whose source_id property
contains the ID value. Specifying \fB?\fP as ID will list all possible values.
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.TP
.B \-\-area\-of\-use NAME
Restrict resource files to be downloaded to those whose area_of_use property
contains the NAME value. Specifying \fB?\fP as NAME will list all possible values.
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.TP
.B \-\-file NAME
Restrict resource files to be downloaded to those whose name property
contains the NAME value. Specifying \fB?\fP as NAME will list all possible values.
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.TP
.B \-\-all
Ask to download all files.
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.TP
.B \-\-exclude\-world\-coverage
Exclude files which have world coverage.
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.TP
.B \-q / \-\-quiet
Quiet mode
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.TP
.B \-\-verbose
New in version 8.1.

.sp
Verbose mode (more than default)
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.TP
.B \-\-dry\-run
Simulate the behavior of the tool without downloading resource files.
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.TP
.B \-\-list\-files
List file names, with the source_id and area_of_use properties.
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.TP
.B \-\-no\-version\-filtering
New in version 8.1.

.sp
By default, projsync only downloads files that are compatible of
the PROJ_DATA.VERSION metadata of \fBproj.db\fP, taking into account the
\fBversion_added\fP and \fBversion_removed\fP properties of entries in \fBfiles.geojson\fP\&.
When specifying this switch, all files referenced in \fBfiles.geojson\fP
will be candidate (combined with other filters).
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.sp
At least one of  \fI\%\-\-list\-files\fP,  \fI\%\-\-file\fP,  \fI\%\-\-source\-id\fP,
\fI\%\-\-area\-of\-use\fP,  \fI\%\-\-bbox\fP or  \fI\%\-\-all\fP must be specified.
.sp
Options \fI\%\-\-file\fP,  \fI\%\-\-source\-id\fP, \fI\%\-\-area\-of\-use\fP and
\fI\%\-\-bbox\fP are combined with a AND logic.
.SH EXAMPLES
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.IP 1. 3
Download all resource files
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.nf
.ft C
projsync \-\-all
.ft P
.fi
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.IP 2. 3
Download resource files covering specified point and attributed to an agency
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.INDENT 3.5
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.nf
.ft C
projsync \-\-source\-id fr_ign \-\-bbox 2,49,2,49
.ft P
.fi
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.SH SEE ALSO
.sp
\fBcs2cs(1)\fP, \fBcct(1)\fP, \fBgeod(1)\fP, \fBgie(1)\fP, \fBproj(1)\fP, \fBprojinfo(1)\fP
.SH BUGS
.sp
A list of known bugs can be found at \fI\%https://github.com/OSGeo/PROJ/issues\fP
where new bug reports can be submitted to.
Bugs specific to resource files should be submitted to
\fI\%https://github.com/OSGeo/PROJ\-data/issues\fP
.SH HOME PAGE
.sp
\fI\%https://proj.org/\fP
.SH AUTHOR
Even Rouault
.SH COPYRIGHT
1983-2025, PROJ contributors
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