TechWhirl (TECHWR-L) is a resource for technical writing and technical communications professionals of all experience levels and in all industries to share their experiences and acquire information.
For two decades, technical communicators have turned to TechWhirl to ask and answer questions about the always-changing world of technical communications, such as tools, skills, career paths, methodologies, and emerging industries. The TechWhirl Archives and magazine, created for, by and about technical writers, offer a wealth of knowledge to everyone with an interest in any aspect of technical communications.
when I print
> bitmaps (which print out OK in other applications), Ventura adds white
> grid lines to them.
Sounds like a moire ("mwa-ray") pattern. This is caused by the
combination of the resolution of the screen on which you captured the
figure and the resolution at which you decided to print it out. When
they are in synch -- theoretically -- you'll see no pattern. In
FrameMaker, capturing off a Sun SPARCstation, bringing the figure in at
72 dpi supposedly achieves this, although I use 150 dpi regularly with
no ill effects.
That's a brain dump of what I know -- or think I know. I'm sure that
people who know more than I do about it will be glad to amend this
explanation as needed.
Corte Madera, California
atc -at- corte-madera -dot- geoquest -dot- slb -dot- com