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Re: Transparent background in Mathematica 6?

• To: mathgroup at smc.vnet.net
• Subject: [mg82761] Re: Transparent background in Mathematica 6?
• From: Szabolcs Horvát <szhorvat at gmail.com>
• Date: Tue, 30 Oct 2007 03:39:34 -0500 (EST)
• References: <fg4dbq$6ai$1@smc.vnet.net>

DmitryG wrote:
> Hi All,
> 
> Sorry to bother you with an old topic on transparent background. We
> all know why it is important. I am trying to produce a GIF with a
> transparent background now.
> 
> Mathematica 6 no longer supports ConversionOptions that was suggested
> by the members in 2000.
> 
> In the description of Background I read that Background->None in Plot
> makes the background transparent. However, my GIFs produced in this
> way have white background.
> 
> Anyone can comment on this?

I haven't tested this, but according to the doc page ref/format/GIF , 
the "TransparentColor" option should be able to do this.  Quoting the docs:

"Export["file.gif",expr,"TransparentColor"->White] creates a GIF file in 
which all white pixels of the original image are taken to be transparent."

-- 
Szabolcs