* quick and shallow question about layers
@ 2014-03-26 22:42 Schmitz Thomas A.
2014-03-26 23:07 ` Hans Hagen
0 siblings, 1 reply; 2+ messages in thread
From: Schmitz Thomas A. @ 2014-03-26 22:42 UTC (permalink / raw)
To: mailing list for ConTeXt users
Hi,
this is pretty shallow, but maybe someone knows a way: for one of my presentation, every slide has a (different) picture as background. The title is typeset within a narrow colored frame which extends across the entire slide. Is there any way to make the background picture show through the letters of the title, i.e. make the letters transparent within the colored frame? I thought of metapost’s infill, but it appears that this only adds a background color, not real transparency.
Hope the question is clear enough - just in case someone has a suggestion; my life doesn’t depend on it!
Thanks and all best
Thomas
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* Re: quick and shallow question about layers
2014-03-26 22:42 quick and shallow question about layers Schmitz Thomas A.
@ 2014-03-26 23:07 ` Hans Hagen
0 siblings, 0 replies; 2+ messages in thread
From: Hans Hagen @ 2014-03-26 23:07 UTC (permalink / raw)
To: ntg-context
On 3/26/2014 11:42 PM, Schmitz Thomas A. wrote:
> Hi,
>
> this is pretty shallow, but maybe someone knows a way: for one of my presentation, every slide has a (different) picture as background. The title is typeset within a narrow colored frame which extends across the entire slide. Is there any way to make the background picture show through the letters of the title, i.e. make the letters transparent within the colored frame? I thought of metapost’s infill, but it appears that this only adds a background color, not real transparency.
>
> Hope the question is clear enough - just in case someone has a suggestion; my life doesn’t depend on it!
\starttext
\startMPcode
draw
externalfigure("mill.png")
xysized(10cm,4cm) ;
draw
textext("\bf LOOK THROUGH")
xysized(10cm,4cm)
shifted center currentpicture
withcolor red
withtransparency (1,0.4) ;
\stopMPcode
\stoptext
or
\starttext
\defineoverlay
[page]
[\overlayfigure{mill.png}]
\setupbackgrounds
[page]
[background=page]
\definecolor[myred][a=1,t=.4,r=.4]
{\color[myred]{\definedfont[Bold*default at 60pt]LOOK THROUGH}}
\stoptext
or ...
Hans
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If your question is of interest to others as well, please add an entry to the Wiki!
maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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archive : http://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
___________________________________________________________________________________
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