harald@ruuinf.cs.ruu.nl (Harald Vogt) (08/25/89)
We had the same problem on our HP's. This is my solution:
Get the sources of xwd and xpr from the X11v3 release.
Install xpr.
Make a new command xwdmono which is a patched
version of xwd (patches follow).
xwdmono dumps only the first plane.
Dumping a window now proceeds as follows:
xwdmono -xy | xpr -device ps > win.ps
Have a nice dump,
Harald Vogt
------------------patch to make xwdmono.c ------------------
*** xwd.c Fri Aug 25 13:41:44 1989
--- xwdmono.c Fri Aug 25 13:42:10 1989
***************
*** 211,217 ****
bw = nobdrs ? 0 : win_info.border_width;
x = absx - win_info.x - bw;
y = absy - win_info.y - bw;
! image = XGetImage (dpy, window, x, y, width, height, AllPlanes, format);
if (!image) {
fprintf (stderr, "%s: unable to get image at %dx%d+%d+%d\n",
program_name, width, height, x, y);
--- 211,219 ----
bw = nobdrs ? 0 : win_info.border_width;
x = absx - win_info.x - bw;
y = absy - win_info.y - bw;
! /* HV image = XGetImage (dpy, window, x, y, width, height, AllPlanes, format);
! */
! image = XGetImage (dpy, window, x, y, width, height, 1L, format);
if (!image) {
fprintf (stderr, "%s: unable to get image at %dx%d+%d+%d\n",
program_name, width, height, x, y);
***************
*** 227,233 ****
if (debug) outl("xwd: Getting Colors.\n");
! ncolors = Get_XColors(&win_info, &colors);
/*
* Inform the user that the image has been retrieved.
--- 229,236 ----
if (debug) outl("xwd: Getting Colors.\n");
! /* HV ncolors = Get_XColors(&win_info, &colors); */
! ncolors = 0; /* HV to let xpr work right */
/*
* Inform the user that the image has been retrieved.
-------------------end of patch-----------------------bchen@esvax.berkeley.edu (Benjamin Chen) (08/26/89)
>xwdmono dumps only the first plane. >Dumping a window now proceeds as follows: > xwdmono -xy | xpr -device ps > win.ps Does this really give good results? I would imagine you would get some sort of "ghostlike" image. BC Benjamin Chen Office: 550-A4 Cory Hall, 2-4332 UUCP: !ucbvax!esvax!bchen HEPNET: LBL::"bchen@esvax.Berkeley.EDU"
jdm@gssc.UUCP (John D. Miller) (08/26/89)
a better solution is to junk xpr and translate the X window dump
into PostScript directly, using the PostScript "image" operator.
PostScript images can be rendered in 1, 2, 4, or 8 bits, even on
monochrome laserprinters (PostScript does the half-toning).
this program, (call it "xpsimage" or some such) would need to convert
from RGB to grayscale:
i = (R * .30) + (G * .59) + (B * .11)
see the PostScript "Red Book" for info on the "image" operator, or give me
a call.
-- jdm
ps - if someone writes this utility, i'd like a copy. i'd do it myself, but i
am way overcommited as it is.
...!{tektronix!verdix}!sequent!gssc!jdm John David Miller
(503) 641-2200 Graphic Software Systems
* This space intentionally * 9590 S.W. Gemini Dr.
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