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NAME

t.rast.copytree - Transfer raster map files from STRDS in external GDAL format to target directory

KEYWORDS

temporal, move, copy, GDAL, directory

SYNOPSIS

t.rast.copytree
t.rast.copytree --help
t.rast.copytree [-mos] input=name [where=sql_query] output_directory=name [source_directory=name] [suffix=string] [temporal_tree=string] [nprocs=integer] [--help] [--verbose] [--quiet] [--ui]

Flags:

-m
Move files into destination (default is copy)
Move files into destination (default is copy)
-o
Overwrite existing files
Overwrite existing files
-s
Use semantic label in directory structure
Use semantic label in directory structure
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

input=name [required]
Name of the input space time raster dataset
where=sql_query
WHERE conditions of SQL statement without 'where' keyword used in the temporal GIS framework
Example: start_time > '2001-01-01 12:30:00'
output_directory=name [required]
Path to the output / destination directory
source_directory=name
Path to the source directory
suffix=string
Suffix of files to transfer
temporal_tree=string
Strftime format to create temporal directory name or tree (e.g. "%Y/%m/%d")
nprocs=integer
Number of threads for parallel computing
Default: 1

Table of contents

DESCRIPTION

t.rast.copytree is a simple helper module to copy extrenal registered raster maps from a STRDS into a temporal directory tree. The tree structure can be defined with the temporal_tree option and the s-flag (to include the semantic_label in the directory structure). The output directory needs to exist, but the directory structure below will be created if necessary. Parallel transfer of files is supported with the nprocs option. Using the m-flag files can be moved instead of copied.

EXAMPLES

temp_dir=$(g.tempfile -d pid=1)
mkdir $temp_dir
target_dir=$(g.tempfile -d pid=1)
mkdir $target_dir

g.region -ag s=0 n=80 w=0 e=120 res=1
r.external.out format="GTiff" directory=$temp_dir extension="tif" options="COMPRESS=LZW"
for rmap_idx in 1 2 3
do
  for prefix in a b
  do
    r.mapcalc expression="${prefix}_${rmap_idx} = ${rmap_idx}00 --overwrite
    r.support map="${prefix}_${rmap_idx} semantic_label=$prefix
  done
done
t.create type="strds" temporaltype="absolute" output="A" \
    title="A test" description="A test" --overwrite
t.register -i type="raster" input="A" maps="a_1,a_2,a_3" \
    start="2001-01-01" increment="3 months" --overwrite
t.create type="strds" temporaltype="absolute" output="B" \
    title="B test" description="B test" --overwrite
t.register -i type="raster" input="B" maps="b_1,b_2,b_3" \
    start="2001-01-01" increment="1 day" --overwrite

t.rast.copytree -m input="A" temporal_tree="%Y/%m" nprocs=2 \
    output_directory=$target_dir

t.rast.copytree -s input="B" temporal_tree="%Y/%m/%d" nprocs=2 \
output_directory=$target_dir

AUTHOR

Stefan Blumentrath

SOURCE CODE

Available at: t.rast.copytree source code (history)

Accessed: Friday Oct 25 13:33:14 2024

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