Pamx User Manual(0) Pamx User Manual(0)NAMEpamx - display Netpbm image in X Window System window
SYNOPSISpamx
[-fullscreen] [-install] [-private] [-fit] [-pixmap] [-verbose] [-dis‐
play=x-display] [-title=text] [-foreground=color] [-background=color]
[-border=color] [-geometry=x-geometry-string] [-visual=name]
netpbm_file
All options can be abbreviated to their shortest unique prefix. You
may use two hyphens instead of one to designate an option. You may use
either white space or an equals sign between an option name and its
value.
DESCRIPTION
This program is part of Netpbm(1).
pamx displays a Netpbm image in an X Window System window. It is like
a very simple version of the classic X image viewer xloadimage.
If you don't specify the input file netpbm_file, the input is from
Standard Input. The input image can be any Netpbm image format. If
the input is a multi-image stream, pamx ignores all but the first
image.
pamx is not the best choice for general purpose viewing of images,
because it is a traditional simple Netpbm building block. It is a good
thing to build into other programs and can be useful for debugging more
complex systems, but you can get much more powerful viewers that can
display Netpbm images. For example, xloadimage, xli, xzgv, and any web
browser.
The initial window is at most 90% of the size of the display unless the
window manager does not correctly handle window size requests or if
you've used the -fullscreen option. You may move the image around in
the window by dragging with the first mouse button. The cursor will
indicate which directions you may drag, if any. You may exit the win‐
dow by typing 'q' or control-C when the keyboard focus is on the win‐
dow.
ppmsvgalib is a similar program that displays an image on a Linux sys‐
tem without the need for the X Window System.
X RESOURCE CLASSpamx uses the resource class name Xloadimage for window managers which
need this resource set. This is, of course, the same resource class
that the conventional viewer program xloadimage uses.
OPTIONS
-border=color
This sets the background portion of the window which is not cov‐
ered by any images to be color.
-display=display_name
This names the X display in which to put the window. E.g. 0:0.
-fit Force image to use the default visual and colormap. This is
useful if you do not want technicolor effects when the colormap
focus is inside the image window, but it may reduce the quality
of the displayed image.
-fullscreen
Use the entire screen to display the image.
-geometry=WxH[{+,-}X{+,-}Y
This sets the size and position of the window in which pamx dis‐
plays the image.
By default, the window size exactly matches the image size,
except that if you don't specify -fullscreen, the maximum is 90%
of the screen dimensions.
-install
Forcibly install the image's colormap when the window is
focused. This violates ICCCM standards and only exists to allow
operation with naive window managers. Use this option only if
your window manager does not install colormaps properly.
-pixmap
Force the use of a pixmap as backing-store. This is provided
for servers where backing-store is broken (such as some versions
of the AIXWindows server). It may improve scrolling performance
on servers which provide backing-store.
-private
Force pamx to use of a private colormap. By default, pamx allo‐
cates colors shared unless there are not enough colors avail‐
able.
-verbose
Causes pamx to print various information about what it's doing
to Standard Error.
-visual=visual_name
Force the use of a specific visual type to display an image. By
default, pamx tries to pick the best available image for a par‐
ticular image type. The available visual types are: Direct‐
Color, TrueColor, PseudoColor, StaticColor, GrayScale, and Stat‐
icGray. You may use the shortest unique prefix of these names,
and case is not significant.
-background=color
Use color as the background color instead of the default (usu‐
ally white but this depends on the image type) if you are trans‐
ferring a monochrome image to a color display.
-foreground=color
Use color as the foreground color instead of black if you are
transferring a monochrome image to a color display. You can
also use this to invert the foreground and background colors of
a monochrome image.
-title=text
Set the title bar title of the window. Default is the file name
of the input file, or 'stdin' if the image is from Standard
Input.
SEE ALSOppmsvgalib(1), pam(1), pnm(1), xzgv, xloadimage, xli
AUTHORpamx is by Bryan Henderson, in March 2006, based on xloadimage by Jim
Frost, Centerline Software, jimf@centerline.com, 1989-1993.
Jim's code contained the following copyright notice and license:
Copyright 1989, 1993 Jim Frost
Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above copyright notice appear in all copies and that
both that copyright notice and this permission notice appear in
supporting documentation. The author makes no representations about
the suitability of this software for any purpose. It is provided "as
is" without express or implied warranty.
THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR
CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
PERFORMANCE OF THIS SOFTWARE.
Lots of other people contributed to Xloadimage, and they are listed in
the file COPYRIGHT in the source code.
HISTORYpamx was new in Netpbm 10.34 (May 2006).
pamx is essentially based on the classic X displayer program xloadimage
by Jim Frost, 1989. Bryan Henderson stripped it down and adapted it to
Netpbm in March 2006.
The following features of xloadimage are left out of pamx, to be more
compatible with Netpbm's philosophy of simple building blocks. Note
that there are other programs in Netpbm that do all of these things:
· slide show
· zoom in/out
· ability to accept formats other than Netpbm
· ability to display on the root window
· image transformations (brightening, clipping, rotating, etc)
· decompressing and other decoding of input
pamx also differs from xloadimage in that it uses Libnetpbm.
There is virtually no code from xloadimage actually in pamx, because
Bryan rewrote it all to make it easier to understand.
netpbm documentation 25 March 2006 Pamx User Manual(0)
