Ah,
Not a bigger pen, but a bigger background shows the difference.
% output=pdf
\setupcolors[state=start]
\startuniqueMPgraphic{shadow}
fill OverlayBox shifted (20pt,-20pt) withcolor .8white ;
fill OverlayBox withcolor white ;
draw OverlayBox withcolor red ;
setbounds currentpicture to OverlayBox ;
\stopuniqueMPgraphic
\defineoverlay[shadow][\uniqueMPgraphic{shadow}]
\startuniqueMPgraphic{shadow2}
fill OverlayBox shifted (20pt,-20pt) withcolor .8white ;
fill OverlayBox withcolor white ;
draw OverlayBox withcolor red ;
% setbounds currentpicture to OverlayBox ;
\stopuniqueMPgraphic
\defineoverlay[shadow2][\uniqueMPgraphic{shadow2}]
\starttext
\framed
[align=middle,background=shadow,frame=off]
{\input tufte\relax}
\blank[5*big]
\framed
[align=middle,background=shadow2,frame=off]
{\input tufte\relax}
\stoptext
On Dec 23, 2005, at 1:28 AM, Hans Hagen wrote:
David Arnold wrote:
Very cool. First time I ever could figure out what \relax does.
When I deleted it from this source, I got:
! I can't find file `zapf}'.
l.25 {\input zapf}
Please type another input file name:
Good learning experience for me. I've seen and ignored this type
of error message before, looking elsewhere in the code. A very
good heads up for me.
Now is there anyway I can visualize the importance of the line
setbounds currentpicture to OverlayBox ;
in this example? I deleted it and recompiled but didn't see much
difference. What is the import of this line?
take a bigger pen ... since the background is bigger than the
overlaybox it will get centered in the background which si not what
you want, therefore the bounding
Hans
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