NAME

r.out.png - Export a GRASS raster map as a non-georeferenced PNG image.

KEYWORDS

raster, export, PNG

SYNOPSIS

r.out.png
r.out.png --help
r.out.png [-tw] input=name output=name [compression=integer] [--overwrite] [--help] [--verbose] [--quiet] [--ui]

Flags:

-t: Make NULL cells transparent
-w: Output world file
--overwrite: Allow output files to overwrite existing files
--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=name [required]: Name for new PNG file (use ’-’ for stdout)
compression=integer: Compression level of PNG file
(0 = none, 1 = fastest, 9 = best)
Options: 0-9
Default: 6

DESCRIPTION

r.out.png exports a GRASS raster map in non-georeferenced Portable Network Graphics (PNG) image format, respecting the current region resolution and bounds.

Optionally the user can choose to export a World File (.wld) to provide basic georeferencing support. When used with the transparency flag this can create images useful for KML, TMS, or WMS overlays. (e.g. for use in Google Earth or as OpenLayers tiles) If output is redirected to stdout, the world file will be called png_map.wld.

AUTHORS

Alex Shevlakov
Hamish Bowman

Last changed: $Date: 2018-11-05 14:29:23 +0100 (Mon, 05 Nov 2018) $

SOURCE CODE

Available at: r.out.png source code (history)

GRASS 7.6.0