r.out.png(1)

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 PNG image format, respecting the current region resolution and bounds.

Optionally the user can choose to export a World File 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 to stdout, the world file will be called png_map.wld.

SEE ALSO
r.out.gdal, r.out.ppm, r.out.ascii, r.in.png

AUTHORS
Alex Shevlakov
Hamish Bowman

Last changed: $Date: 2014-11-01 20:59:34 +0100 (Sat, 01 Nov 2014) $

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