comp.lang.idl-pvwave archive: archive » Re: TVRD'ing under windows

Home » Public Forums » archive » Re: TVRD'ing under windows

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: TVRD'ing under windows [message #15252]

Fri, 07 May 1999 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Phil Aldis (philaldis@geocities.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:

http://www.dfanning.com/tips/strange_tvrd.html

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.
Anyone listening?)

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

Report message to a moderator

[Message index]

		Re: TVRD'ing under windows By: davidf on Fri, 07 May 1999 00:00
		Re: TVRD'ing under windows By: Pavel Romashkin on Thu, 06 May 1999 00:00
		Re: TVRD'ing under windows By: Liam Gumley on Thu, 06 May 1999 00:00

Previous Topic:	Re: Converting 24 bit images to 8 bit images with a specific colour table
Next Topic:	IDL code for ENVI

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Tue Dec 02 06:08:35 PST 2025

Total time taken to generate the page: 0.80358 seconds