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Re: overplotting lines over images [message #7496 is a reply to message #7401]

Thu, 14 November 1996 00:00

Robert Moss
Messages: 74
Registered: February 1996

Member

Mirko Vukovic wrote:
>
> I want to overplot lines over an image. The way I'd like it is to OR
> it, in the sense that the line is dark over light parts and light over
> dark parts. Thought that I've seen that written or mentioned somewhere,
> but cannot find anything in the manual.
>
> Did anyone deal with this before?
>
> tia,
> --
> Mirko Vukovic, Ph.D 3075 Hansen Way M/S K-109
> Varian Associates Palo Alto, CA, 94304
> 415/424-4969 mirko.vukovic@varian.grc.com

device, get_graphics_function = oldgr
device, set_graphics_function = 6 ; GXxor
plot, .... ; plot your lines here
device, set_graphics_function = oldgr ; set it back

Typically "oldgr" = 3, which is GXcopy.
See the help for more details.

--
Robert M. Moss, Ph.D. - mossrm@texaco.com - FAX (713)954-6911
------------------------------------------------------------ -----
This does not necessarily reflect the opinions of Texaco Inc.

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[Message index]

		overplotting lines over images By: Mirko Vukovic on Wed, 13 November 1996 00:00
		Re: overplotting lines over images By: Mirko Vukovic on Thu, 14 November 1996 00:00
		Re: overplotting lines over images By: Robert Moss on Thu, 14 November 1996 00:00
		Re: overplotting lines over images By: David Foster on Thu, 14 November 1996 00:00
		Re: overplotting lines over images By: Christian Soeller on Thu, 14 November 1996 00:00

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