The first prompt asks the user for the imagery group whose files are to be used.
The following menu is then displayed:
Please indicate which files to use for red, green, and blue
colors. You may leave any color out. You may specify more
than one color per file. However, each color may only be
specified once. For example, to get a full color image,
specify r,g,b for 3 different files. To get a grey scale
image, specify rgb for a single file.
b__ spot.1
g__ spot.2
r__ spot.3
___ spotclass
___ spotreject
AFTER COMPLETING ALL ANSWERS, HIT <ESC> TO CONTINUE
(OR <Ctrl-C> TO CANCEL)
The user is then allowed to check the choice of bands:
Colors assigned as follows:
RED: spot.3@mapsetname
GREEN: spot.2@mapsetname
BLUE: spot.1@mapsetname
Look ok? (y/n) [y]
How many color levels (number of colors = levels^3)? 10
If the number of color levels is set to 10, the color table that is created
has 1000 colors (10 saturation levels (or shades) per primary color (blue,
green, red)). The number of colors that can be displayed at one time on a
color graphics monitor will depend on the graphics monitor being used. Note
that GRASS currently becomes very slow in displaying maps with more than
8000 colors (color level: 20). So 10 to 15 color levels are recommended.
The user is then asked to name the composite image raster map layer. The percentage completed is echoed to the screen and r.support files are created automatically.
This program is interactive and requires no command line arguments.
d.his
d.rgb
d.rast
g.region
i.colors
i.group
r.colors
r.support
Last changed: $Date: 2002/01/25 05:45:33 $