Re: [NTG-context] MetaPost backgrounds

10 Aug 2003

      On Sun, 10 Aug 2003 20:50:58 +0200
Jens-Uwe Morawski  wrote:
...
On Sun, 10 Aug 2003 09:30:48 +0200
Mikael Persson  wrote:
...
I had some problems with backgrounds in a table. I wanted just a
horizontal line, but in different heights. The problem is that the >
line will always be in the middle of the cell if I don't add more >
...
graphics.
See the example file below.
the graphics are always centered in the cell. therefore you have to >
set the bounding box  of the graphic to the cell size
...
% This works, but is not nice.
\startuniqueMPgraphic{splittop}
draw (0,0)--(OverlayWidth,OverlayHeight) withcolor white;%should not
be necessary
draw (0,0.725*OverlayHeight)--(OverlayWidth,0.725*OverlayHeight);
\stopuniqueMPgraphic
the following should give what you want (untested)
\startuniqueMPgraphic{splittop}
draw (0,0.725*OverlayHeight)--(OverlayWidth,0.725*OverlayHeight);
setbounds currentpicture to (unitsquare xyscaled > >
(OverlayWidth,OverlayHeight)) ;\stopuniqueMPgraphic
in order to save some typing you could define a macro
\startMPinclusions
def FitToOverlay =
   setbounds currentpicture to (unitsquare xyscaled > >
   (OverlayWidth,OverlayHeight)) ;
enddef;
\stopMPinclusions
\startuniqueMPgraphic{splittop}
draw (0,0.725*OverlayHeight)--(OverlayWidth,0.725*OverlayHeight);
FitToOverlay ;
\stopuniqueMPgraphic
Jens
Jens,

Thanks a lot! I did not know that the graphics are centered in the cell.
Now this mystery (to me) is not a mystery no more :)

Regards, Micke P