Re: Transparency channel

Bob Friesenhahn <[email protected]> writes:

> On 1 Mar 2004, David N. Welton wrote:

> > According to this, the IM guy(s) implemented the 'O' mapping for
> > MagickGetImagePixels - could that be added to GM as well?

> > http://studio.imagemagick.org/magick/viewtopic.php?t=1295&sid=94c8bad5d7ac3df289717ed1ba333851

> As of this evening, GraphicsMagick has 'O' (opacity) and 'T'
> (transparency) map options.  The 'T' map option does the same thing
> as the previously existing (and still existing) 'A' option, but its
> meaning should be more clear.

> The constitute tests still pass.

> Let me know if you experience any problems.

No, it works great!  Thanks a bunch for updating it.

> If you can tell me the map strings that TclMagick uses, I can add a
> special case to make it faster.

"RGBO" (and it's TkMagick, by the way - TclMagick doesn't depend on Tk
and, as a consequence, some kind of windowing system).

Thanks again,
-- 
David N. Welton
   Consulting: http://www.dedasys.com/
     Personal: http://www.dedasys.com/davidw/
Free Software: http://www.dedasys.com/freesoftware/
   Apache Tcl: http://tcl.apache.org/


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