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NAME

r.tile - Splits a raster map into tiles.

KEYWORDS

raster, tiling

SYNOPSIS

r.tile
r.tile --help
r.tile input=name output=string width=integer height=integer [overlap=integer] [--help] [--verbose] [--quiet] [--ui]

Flags:

--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog

Parameters:

input=name [required]
Name of input raster map
output=string [required]
Output base name
width=integer [required]
Width of tiles (columns)
height=integer [required]
Height of tiles (rows)
overlap=integer
Overlap of tiles

Table of contents

DESCRIPTION

r.tile retiles an existing raster map with user defined x and y tile size.

NOTES

r.tile generates a separate raster for each tile. This is equivalent to running g.region along with r.resample in a double loop.

The module can be used to split a large raster map into smaller tiles, e.g. for further parallelized analysis on a cluster computing system.

The overlap is defined in rows/columns.

EXAMPLE

Retiling example for the North Carolina DEM:
g.region raster=elevation -p
# rows:       1350
# cols:       1500

# generating 2 x 2 = 4 tiles (width=1500/2, height=rows/2)
r.tile input=elevation output=elev_tile width=750 height=675
creates 4 tiles with the prefix elev_tile (named: elev_tile-000-000, elev_tile-000-001, elev_tile-001-000, ...).

SEE ALSO

g.region, r3.retile

AUTHOR

Glynn Clements

Last changed: $Date: 2016-06-25 16:33:50 -0700 (Sat, 25 Jun 2016) $

SOURCE CODE

Available at: r.tile source code (history)


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