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Re: TVRD'ing under windows
- Subject: Re: TVRD'ing under windows
- From: davidf(at)dfanning.com (David Fanning)
- Date: Fri, 7 May 1999 02:18:09 -0600
- Newsgroups: comp.lang.idl-pvwave
- Organization: Fanning Software Consulting
- References: <firstname.lastname@example.org>
- Xref: news.doit.wisc.edu comp.lang.idl-pvwave:14648
Phil Aldis (email@example.com) writes:
> I'm having trouble tvrd'ing under windows, when I'm running 16 bit
> mode, and using decomposed colour. If I display an image, and then
> tvrd it back in and the tv that image, I get a garbled mess. The only
> way I can get a representation of what is on the screen is to set it
> into 24 bit mode, image=tvrd (true=1) and then tv, image, true=1.
> I'm not really sure what's going on. Is this anything to do with what
> David was saying a while bakc, that when you're using decomposed
> colous, it runs stuff through the table or something.
Must be something going around, because I just wrote an article
about this last week and posted it on my web page:
You don't have to be in 24-bit mode (at least in IDL
5.2), but you *DO* have to set the TRUE keyword both in
TVRD and on the TV command, and you DO have to have
Decomposed=1 when displaying a 24-bit image on a PC.
(I *really* think this last requirement is a bug, RSI.
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: firstname.lastname@example.org
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155