Longmin Wang 写道: Hi Longmin,
It works fine here with the latest beta and luatex 0.40. You may tryto delete luatex-cache and regenerate it.
It solves the problem, thanks. I find another problem with the example in my previous email. I changed the example a little bit. Example: \startuseMPgraphic{mpos:par:columnset:textuline} \iftracepositions show_multi_pars \else draw_multi_pars \fi ; path p ; p := boundingbox currentpicture ; currentpicture := currentpicture shifted (0,0.3*StrutDepth) ; setbounds currentpicture to p ; \stopuseMPgraphic \definetextbackground [underline] [location=text, alternative=1, mp=mpos:par:columnset:textuline, background=, frame=off] \starttext \underline{blurblur} \underline{blurblur} \underline{blurblur} \underline{blurblur} \stoptext The vertical positions of underlines are not stable. See the attached PDF file. Best wishes, Wei-Wei
test.pdf
Description: Adobe PDF document
___________________________________________________________________________________ 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 webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________