On 4/11/2020 4:15 PM, mf wrote:
Hello list,
this MWE is a simplified version of a real case:
\startuseMPgraphic{cell:triangle}
path p ; p := unittriangle rotated 90 xscaled 2.5 OverlayWidth
yscaled 2.5 OverlayHeight ;
draw p withcolor red ;
\stopuseMPgraphic
\defineoverlay[triangle][{\uniqueMPgraphic{cell:triangle}}]
\starttext
\bTABLE[frame=off]
\bTR
\bTD[nx=2,background=triangle,align=middle] \dontleavehmode a\crlf
text \eTD
\eTR
\bTR[toffset=1mm]
\bTD left \eTD
\bTD right \eTD
\eTR
\eTABLE
\stoptext
here's a very ugly solution
\startuseMPgraphic{cell:triangle}
fill llcorner OverlayBox
-- lrcorner OverlayBox
-- (center bottomboundary OverlayBox shifted
(0,\MPy{foo:2}-\MPh{foo:2}+\MPd{foo:2}-\MPy{foo:1}))
-- cycle
withcolor red ;
setbounds currentpicture to OverlayBox ;
\stopuseMPgraphic
\defineoverlay[triangle][{\uniqueMPgraphic{cell:triangle}}]
\starttext
\bTABLE[frame=off]
\bTR
\bTD[nx=2,align=middle,height=0pt,background=triangle]\xypos{foo:1}\eTD
\eTR
\bTR
\bTD[nx=2,align=middle] \dontleavehmode a\crlf text \eTD
\eTR
\bTR[toffset=1mm]
\bTD \hpos{foo:2}{\strut} left \eTD
\bTD right \eTD
\eTR
\eTABLE
\stoptext
it is probably possible to get some info otherwise (more efficient) if
really needed (if we add some helpers)
Hans
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Hans Hagen | PRAGMA ADE
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