Re: Framing the text area of a part page w/ tikz/pgf.

[Wolfgang Schuster <schuster.wolfgang@googlemail.com>]

Am 14.01.2009 um 20:35 schrieb Bart C. Wise:

> On Wednesday 14 January 2009 12:03:51 pm Wolfgang Schuster wrote:
> > Am 14.01.2009 um 19:42 schrieb Bart C. Wise:
> > > Ultimately I want to load an image and have it framed for the
> > > background on the part page. I like the ability that tikz gives me
> > > to adjust the opacity of the image, which is why I tried to find a
> > > solution using tikz.
> > > So I can find a solution without tikz, but is there one that will
> > > work with tikz?
> >
> > How about this?
> >
> > \setupexternalfigures[location={local,global,default}]
> >
> > \setupcolors[state=start]
> >
> > \definecolor[partwhite][s=1,t=.8,a=1]
> >
> > \defineoverlay[partimage][\overlayfigure{mill}]
> >
> > \defineframedtext
> > [partframed]
> > [width=\textwidth,
> > height=\textheight,
> > rulethickness=5pt,
> > background={partimage,color},
> > backgroundcolor=partwhite,
> > top=\vfill,
> > bottom=\vfill\vfill]
> >
> > \setuphead
> > [part]
> > [before=\startpartframed,
> > after=\stoppartframed,
> > align=middle,
> > footer=high,
> > header=high,
> > placehead=yes]
> >
> > \starttext
> > \part{This is part one}
> > \stoptext
> >
>
> Thanks! That one works. And much more elegant than what I was  
> developing.
> Just so I understand:
> "background={partimage,color}" : This creates the background from  
> both the image and the backgroundcolor, correct?

Yes, I used here two layers for the background, one for the image and
another one for the color which is before the image.

> What does the "s=1" and the "a=1" do in defining the color  
> partwhite? I can't find anything on the web.


I used s=1 to define a white color and the other two to make it  
transparent.

http://wiki.contextgarden.net/Colors#Transparent_Colors

Wolfgang

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