ximgview - GRASS GIS manual

NAME

ximgview - View BMP images from the PNG driver.

KEYWORDS

display, graphics, raster, vector, visualization

SYNOPSIS

ximgview

ximgview --help

ximgview image=name [percent=integer] [--help] [--verbose] [--quiet] [--ui]

Flags:

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

Parameters:

image=name [required]: Image file
percent=integer: Percentage of CPU time to use; Default: 10

DESCRIPTION
NOTES
EXAMPLE
SEE ALSO
AUTHOR

DESCRIPTION

ximgview is a simple X11 image viewer for 32-bpp BMP images, as can be created with the PNG and cairo drivers. The display is continually refreshed.

NOTES

The display driver must be configure to map the file, with GRASS_RENDER_FILE_MAPPED=TRUE. This ensures that the file will remain a constant size, rather than being truncated whenever it is updated.

EXAMPLE

(bash shell syntax)

export GRASS_RENDER_FILE=map.bmp
export GRASS_RENDER_WIDTH=640
export GRASS_RENDER_HEIGHT=480
export GRASS_RENDER_IMMEDIATE=PNG
export GRASS_RENDER_FILE_MAPPED=TRUE
export GRASS_RENDER_FILE_READ=TRUE

d.erase
ximgview $GRASS_RENDER_FILE percent=50 &
d.rast elevation.dem
d.vect roads