[ REQ 5514]: Obtaining postscript

[back at math.cornell.edu]

Hello - we're having difficulty getting a "jaggy-less" image
out of geomview on a fairly big data file (12 Mb grayscale). The screen images
are very satisfactory, and if (on an Indigo 2) we do "save as" in
Iris RGB format, we get a faithful rendition which we can convert to
postscript, e.g. with xv. But of course this loses the higher resolution that
postscript on printers ordinarily provides. When we run PS Snapshot on
the entire image (on either a Sparc 20 or Indigo 2) we get explosive growth in
memory use (> 150 Mb on one, 200 Mb on the other); PS Snapshot on
smaller pieces exhibits its documented "z-buffering not quite right"
error.

Is there any other approach we might try to produce honest postscript
from geomview, unfiltered by the limitations of screen resolution ?

						thanks in advance,
						
						Allen Back