Manual Reference Pages - GETMEX (1)
getmex - get RLE images to an Iris display under the window manager
-f ] [
-w ] [
-D ] [
mapstart ] [
This program displays an
file on a
Silicon Graphics Iris display running the
4Sight window manager. It uses a dithering technique to take a
full-color or gray scale image into the limited number of colors
typically available under
mex. Its default behavior is to try to
display the image in color, an option is provided to force black and
white display. Several
getmex processes running simultaneously will share color map entries.
getmex uses the standard
window creation procedure to create a window with a location and size
specified by the user, with the restriction that the window will be no larger
than the input image. If the window is smaller than the image, the center of
the image will be visible in the window.
You can "pan" a small window around in an image by attaching the mouse to
the window using
4Sight and clicking the
left mouse button in the image. The position in the image
under the cursor will jump to the center of the window. The
SETUP key resets the view to position the center of the image in the center of the
control-SETUP saves the current view, and
shift-SETUP restores it.
getmex will fork itself after putting the image on the screen, so that the
parent process may return the shell, leaving an "invisible" child to
keep the image refreshed. If
-f is specified, getmex will remain attached to the shell, whence it may
be killed with an interrupt signal or via
the window manager.
This flag forces
getmex to produce a gray scale dithered image instead of a color image.
Color input will be transformed to black and white via the
NTSC Y transform. Since a 128-step greyscale is used, this will produce a
much smoother looking image than color dithering.
"Debug mode". The operations in the input
file will be printed as they are read.
-m mapstart |
Specifies the starting location of the block of color map to be used by
getmex . (There are 1024 colors available on the Iris 2400/3000s under
mex.) The default for color images is a block of 512 rgb colors starting at
location 512 in the color map. Black-and-white images default to a block
of 128 grey shades starting at location 128. Both the rgb and grey ramps
are gamma-corrected in the same way as the
makemap program in the /usr/gifts/mextools/tools directory. You probably want
to set up your initial color map using
Name of the
file to display. If not specified, the image will be read from the
Russ Fish, University of Utah.
|1 ||GETMEX (1) ||Jan 20, 1987 |
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