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Re: 8 to 24 bit conversion [message #41677 is a reply to message #41676]

Tue, 09 November 2004 22:27

Robert Barnett
Messages: 70
Registered: May 2004

Member

> I also don't know if I can do it the other way. Not only am I doing the
> above, but I am doing it all at 4x as large as it needs to be, and then
> using REBIN() (Dr. Fannings trick) to get the text and continents
> anti-aliased. I don't think this trick will work if the colorbar is
> split in two, will it?

Ha ha! I *also* use rebin to make my p's look pretty.

You are correct that splitting the colortable means that you can't
rebin, otherwise the edges of the letters have funny shades. In fact I
found that I get the nicest image by rebining each color channel after
flattening the layers.

I've only just started to get to know the IDLgr* classes. IDLgrBuffer is
probably the best solution. However, it's not much use if you've already
written your code using tvscl, plot etc... Or I could just recode my
project as an exercise.

I have promised myself that my next project will make use of Graphics
Object Classes. I have to admit that they are pretty useful and much
simpler than expected. But then again, any OO task may look easy after
trying to extend a Java Swing component. Just take a look at some of the
nasty Java API's and you'll come squirming to David Fanning land.

Cheers
--

nrb@
Robbie Barnett
imag
Research Assistant
wsahs
Nuclear Medicine & Ultrasound
nsw
Westmead Hospital
gov
Sydney Australia
au
+61 2 9845 7223

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[Message index]

		Re: 8 to 24 bit conversion By: David Fanning on Wed, 10 November 2004 06:10
		Re: 8 to 24 bit conversion By: KM on Wed, 10 November 2004 05:45
		Re: 8 to 24 bit conversion By: David Fanning on Tue, 09 November 2004 23:04
		Re: 8 to 24 bit conversion By: Robert Barnett on Tue, 09 November 2004 22:27
		Re: 8 to 24 bit conversion By: KM on Tue, 09 November 2004 18:26
		Re: 8 to 24 bit conversion By: KM on Tue, 09 November 2004 18:17
		Re: 8 to 24 bit conversion By: Robert Barnett on Tue, 09 November 2004 15:49
		Re: 8 to 24 bit conversion By: Robert Barnett on Tue, 09 November 2004 15:36
		Re: 8 to 24 bit conversion By: KM on Tue, 09 November 2004 15:21
		Re: 8 to 24 bit conversion By: Liam Gumley on Tue, 09 November 2004 14:49
		Re: 8 to 24 bit conversion By: Liam Gumley on Tue, 09 November 2004 14:40

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