Peter Rolf wrote:
vardef define_linear_shade (expr a, b, ca, cb) = hide (_defined_cs_ := _defined_cs_ + 1 ; _defined_cs_pre_ [_defined_cs_] := "ls" ; _defined_cs_post_[_defined_cs_] := "0 1 " & decimal shadefactor & " " & colordecimals ca & " " & ddecimal (a shifted shadeoffset) & " " colordecimals cb & " " & ddecimal (b shifted shadeoffset) ) _defined_cs_ enddef ;
same for define_circular_shade...
% testfile --------------------------------- % engine=luatex \setupcolors[state=start] \starttext
\null \startMPcode path p; p:= unitsquare xyscaled(10cm,1cm); fill p withshade define_linear_shade(p,1,red,blue); \stopMPcode
\stoptext
i uploaded a new beta but anyhow, your definition is wrong \startMPcode path p; p:= unitsquare xyscaled (10cm,1cm) ; fill p withshade (define_linear_shade(llcorner p, urcorner p,red,blue)) ; \stopMPcode so, the first two arguments are pairs ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------