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Peter Rolf schrieb:
Hans Hagen schrieb:
Peter Rolf wrote:
Hi,
there are some problems in combination with the 'withshade' operator in mlib.
this must be patched in mp-mlib.mp (':=' instead of '='; too much lua ;) indeed
i still get an error after this patch, because '_defined_cs_' is not increased somehow (donno why, not my day; cleared mem, remade formats). _defined_cs_pre_0 is of course undefined. did you delete the cont-en-metafun format in the cache?
yes, several times. if it works for you, i just have bad luck. as said: not my day..
don't know if i'm still out of luck or if it's a general problem (luatex trunc, context beta 03.05.2008). there was also some 'hide' missing, but anyway i still get the same error. code looks ok to me, but i'm no experienced mp programmer. maybe a luatex/mplib problem with vardef grouping? i'm puzzled. 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 % results in -------------------------------- [..] systems : begin file shade at line 3 mplib : making format: metafun.mp, name: r:/tex/luatex-cache/context/be74c9ce1715b7e02ccf1b16a39c2fc2/formats/cont-en-metafun.mem mplib : loading format: metafun.mp, name: r:/tex/luatex-cache/context/be74c9ce1715b7e02ccf1b16a39c2fc2/formats/cont-en-metafun.mem report >> mp terminal: ! Missing argument to withshade. <to be read again> define_linear_shade <*> ...,1cm); fill p withshade define_linear_shade (p,1,red,blue); ;
unknown string _defined_cs_pre_0 ! Improper type. <to be read again> withpostscript withshade->...fined_cs_pre_[(EXPR0)]withpostscript
._defined_cs_post_[(EXPR0)] <to be read again> define_linear_shade <*> ...,1cm); fill p withshade define_linear_shade (p,1,red,blue); ;
_defined_cs_post_0define_linear_shade ! Improper type. <to be read again> ( <*> ...1cm); fill p withshade define_linear_shade( p,1,red,blue); ; ! Extra tokens will be flushed. <to be read again> ( <*> ...1cm); fill p withshade define_linear_shade( p,1,red,blue); ;
report >> mp error: unknown, no error, terminal or log messages fonts : resetting map file list [..] any help welcome. peter