g.gui.mapswipe(1grass) GRASS GIS User's Manual g.gui.mapswipe(1grass)
NAME
g.gui.mapswipe - Interactively compares two maps by swiping a visibil-
ity bar.
KEYWORDS
general, GUI, display
SYNOPSIS
g.gui.mapswipe
g.gui.mapswipe --help
g.gui.mapswipe [first=name] [second=name] [mode=string] [--help]
[--verbose] [--quiet] [--ui]
Flags:
--help
Print usage summary
--verbose
Verbose module output
--quiet
Quiet module output
--ui
Force launching GUI dialog
Parameters:
first=name
First (top/right) raster map
second=name
Second (bottom/left) raster map
mode=string
View mode
Options: swipe, mirror
Default: swipe
swipe: swiping the upper map layer to show the map layer below
mirror: synchronized maps side by side
DESCRIPTION
The Map Swipe is a wxGUI component which allows the user to interac-
tively compare two raster maps of the same area by revealing different
parts of the raster maps. It is useful e.g. for comparing raster maps
from different time periods. Map Swipe can be launched from the menu
File -> Map Swipe.
Map Swipe allows you to:
• switch orientation of the swipe line (horizontal or vertical)
• zooming, panning
• automatically load maps when opening Map Swipe with two se-
lected raster maps in Layer Manager
• compare 2 raster maps or load different combinations of raster
and vector maps and set transparency (advanced mode)
• save display to graphics file
• display text labels with map names
• choose between ’swipe’ mode (default) and ’mirror’ mode (syn-
chronized maps displayed side by side)
• change the appearance of cursor in ’mirror’ mode (available in
Map Swipe settings)
Pre and post disaster images of the tsunami in Japan in 2011. The upper
MODIS image taken on February 26, 2011, shows the coastline under nor-
mal conditions while the lower MODIS image on March 13, 2011, shows a
clear view of tsunami flooding along the coastline. Water, black and
dark blue in these false-color images, still covers the ground as much
as five kilometers (three miles) from the coast. Source: Earth Obser-
vatory/NASA
SEE ALSO
wxGUI
wxGUI components
See also the user wiki page.
AUTHOR
Anna Kratochvilova, Czech Technical University in Prague, Czech Repub-
lic
SOURCE CODE
Available at: wxGUI Map Swipe source code (history)
Accessed: unknown
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GRASS 7.8.7 g.gui.mapswipe(1grass)
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