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Re: transparent symbols [message #74960 is a reply to message #74939]

Thu, 10 February 2011 11:53

pgrigis
Messages: 436
Registered: September 2007

Senior Member

On Feb 8, 11:10 am, bing999 <thibaultga...@gmail.com> wrote:
> On Feb 8, 4:48 pm, bing999 <thibaultga...@gmail.com> wrote:
>
>> Hi,
>
>> I want to overplot symbols (filled circles) on a previously drawn
>> figure. To make it easier to read, I would like to make the symbols
>> transparent.
>> Is there a way to do that?
>
>> Thanks a lot!
>
>> cheers
>
> And please note that I would like to save the plot in PostScript... :)

What about reading the RGB pixel values in the place you need
the symbols, add 32 (or another suitable value) to the R channel
while leaving the G and B channels untouched. That will create
a red-hued semi-transparent symbol...

Ciao,
Paolo

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[Message index]

		Re: transparent symbols By: manodeep@gmail.com on Tue, 08 February 2011 10:43
		Re: transparent symbols By: Michael Galloy on Tue, 08 February 2011 09:18
		Re: transparent symbols By: David Fanning on Tue, 08 February 2011 09:05
		Re: transparent symbols By: R.Bauer on Tue, 08 February 2011 08:52
		Re: transparent symbols By: Thibault Garel on Tue, 08 February 2011 08:10
		Re: transparent symbols By: pgrigis on Thu, 10 February 2011 11:53
		Re: transparent symbols By: MarioIncandenza on Thu, 10 February 2011 08:55

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