All, I am wondering what is wrong with the following. On my system it produces the error that follows. \setuppapersize[S6][S6] \usetypescriptonce [map] [times,helvetica,palatino] [texnansi] \usetypescriptonce [serif] [times] [name,texnansi] \usetypescriptonce [sans] [helvetica] [name,texnansi] \usetypescriptonce [palatino] [texnansi] \setupbodyfont [palatino,10pt] \startbuffer[mpenv] \startMPenvironment \usetypescriptonce[map][times,helvetica,palatino][texnansi] \usetypescriptonce[serif][times][name,texnansi] \usetypescriptonce[sans][helvetica][name,texnansi] \usetypescriptonce[palatino][texnansi] \setupbodyfont[palatino,10pt] \definefont[RotFont][RegularBold] \stopMPenvironment \stopbuffer \definefont[RotFont][RegularBold] \getbuffer[mpenv] \setupcolors[state=start] \starttext \def\showMPline#1#2% {\startMPcode path p ; p := ((0,0)--(.5,1)--(1,0)) xscaled 2.5cm yscaled 1.25cm ; pickup pencircle scaled .75cm ; draw p withcolor .625white ; interim linejoin := #1 ; interim linecap := #2 ; draw p withcolor transparent(1,.5,.625yellow) ; \stopMPcode} \def\showMPtext#1#2% {linejoin=#1\par linecap=#2} \startbuffer \startcombination[3*3] {\showMPline{mitered}{butt}} {\showMPtext{mitered}{butt}} {\showMPline{mitered}{rounded}} {\showMPtext{mitered}{rounded}} {\showMPline{mitered}{squared}} {\showMPtext{mitered}{squared}} {\showMPline{rounded}{butt}} {\showMPtext{rounded}{butt}} {\showMPline{rounded}{rounded}} {\showMPtext{rounded}{rounded}} {\showMPline{rounded}{squared}} {\showMPtext{rounded}{squared}} {\showMPline{beveled}{butt}} {\showMPtext{beveled}{butt}} {\showMPline{beveled}{rounded}} {\showMPtext{beveled}{rounded}} {\showMPline{beveled}{squared}} {\showMPtext{beveled}{squared}} \stopcombination \stopbuffer \placefigure [here] [fig:joints] {The nine ways to end and join lines.} {\getbuffer} \stoptext \stoptext The error: (./meta-meta.tmp [MP to PDF] (./meta-mpgraph.1 ! Dimension too large. <recently read> \onebasepoint \handleMPboundingbox ...expr \MPury \onebasepoint -\MPlly \onebasepoint \rel... l.2 %%BoundingBox: -11 -11 82 25121 ?