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 20:57:37 +0100 (Sat, 01 Nov 2014) $

SOURCE CODE

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

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       © 2003-2018 GRASS Development Team, GRASS GIS 7.4.0 Reference Manual

GRASS 7.4.0                                                                                    r.out.png(1grass)