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Re: overlaying a transparent 24-bit image with different pixel scale [message #73228 is a reply to message #73226]

Fri, 29 October 2010 11:47

Jeremy Bailin
Messages: 618
Registered: April 2008

Senior Member

On Oct 29, 2:41 pm, David Fanning <n...@dfanning.com> wrote:
> David Fanning writes:
>> My only
>> concern is that if I take what's in the display window
>> as the background for the alpha channel, this will NOT
>> make it possible to display the image in PostScript.
>> (No window to read from.) Is this a limitation you
>> can live with?
>
> Maybe I would have to make you supply a "background"
> image, from which I could take the information I
> need to do the alpha blending. This would work, I think,
> on all devices.
>
> Cheers,
>
> David
>
> --
> David Fanning, Ph.D.
> Fanning Software Consulting, Inc.
> Coyote's Guide to IDL Programming:http://www.dfanning.com/
> Sepore ma de ni thui. ("Perhaps thou speakest truth.")

Yes, that would work for me! I think having the option of reading it
straight from the display, when available, would also be great.

-Jeremy.

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[Message index]

		Re: overlaying a transparent 24-bit image with different pixel scale By: David Fanning on Fri, 29 October 2010 13:35
		Re: overlaying a transparent 24-bit image with different pixel scale By: Jeremy Bailin on Fri, 29 October 2010 13:13
		Re: overlaying a transparent 24-bit image with different pixel scale By: David Fanning on Fri, 29 October 2010 12:24
		Re: overlaying a transparent 24-bit image with different pixel scale By: Jeremy Bailin on Fri, 29 October 2010 11:47
		Re: overlaying a transparent 24-bit image with different pixel scale By: Jeremy Bailin on Fri, 29 October 2010 11:44
		Re: overlaying a transparent 24-bit image with different pixel scale By: David Fanning on Fri, 29 October 2010 11:41
		Re: overlaying a transparent 24-bit image with different pixel scale By: David Fanning on Fri, 29 October 2010 11:36

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