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Re: Color PostScript (was: Re: IDL resources on my Web page) [message #6774 is a reply to message #6767]

Wed, 14 August 1996 00:00

Liam Gumley
Messages: 473
Registered: November 1994

Senior Member

Jan Willem Hartman wrote:
> In <3208DF55.41C6@ssec.wisc.edu> Liam Gumley <liamg@ssec.wisc.edu> writes:
>> Please browse around and let me know if you find any of it useful.
> Well thanks, I found it useful. The esrg library wasn't installed on
> my system, so I didn't know the wonders of TVIM before.

Glad to hear it.

> But. I'm having trouble with printing color postscript files: on
> screen it looks perfect, but on my ps-file the borders of the graph
> are missing (ie presumably white).

The following is from the IDL Reference Guide, p 3-37.

"Note: Unlike monitors where white is the most visible color, PostScript
writes black on white paper. Setting the output color index to 0, the
default when PostScript output is selected, writes black. A color index
of 255 writes white which is invisible on white paper. Color tables are
not used with PostScript unless the color mode has been enabled using
the DEVICE procedure. See "Color Images" on page 3-41."

In your case, I think you will get the effect you are looking for if
you do *not* reverse the color table. The plot will have white text
on a black background in the IDL graphics window, but the Postscript
file will have black text on a white background.

Cheers,
Liam.

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[Message index]

		Re: Color PostScript (was: Re: IDL resources on my Web page) By: David.Steele on Fri, 16 August 1996 00:00
		Re: Color PostScript (was: Re: IDL resources on my Web page) By: hartman on Thu, 15 August 1996 00:00
		Re: Color PostScript (was: Re: IDL resources on my Web page) By: Liam Gumley on Wed, 14 August 1996 00:00

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