Hi Hans
I don't know if the latest beta already has the new code. But I can
confirm, that there is still a difference between tikz-colors and
context/metafun colors.
TikZ translates c=1,m=1 in (native) RGB, that is b=1, which is in some way
correct.
ConTeXt translates c=1,m=1 in something I couldn't really define (perhaps
sRGB or some other color profile) r=0.183... g=0.191... b=0.574... or in
Web-Hex: #2e3092
or back to cmyk: c=.68, m=.67,k=.43 (which is blue with some key-value
compared to TikZ with k=0)
So I think that TikZ and ConTeXt don't use the same color profile....
Hope it could help somewhat to solve my problem.
Thanks
Christian
PS.: New MWE with output.pdf attached.
\usemodule[tikz]
\usetypescript[palatino]
\setupbodyfont[palatino,40pt]
\starttext
\definecolor[mycola][c=1,m=1,y=0,k=0]
\definecolor[mycolb][c=0.5,m=0.5,y=0,k=0]
\definecolor[mycolc][c=0.25,m=0.25,y=0,k=0]
\starttikzpicture
\node[fill=mycola,rectangle, minimum height=4cm,minimum width=2cm]
{\startcolor[mycola]T\stopcolor};
\node[fill=mycolb,rectangle, minimum height=4cm,minimum width=2cm] at (2,0)
{\startcolor[mycolb]T\stopcolor};
\node[fill=mycolc,rectangle, minimum height=4cm,minimum width=2cm] at (4,0)
{\startcolor[mycolc]T\stopcolor};
\stoptikzpicture
\startMPcode
fill fullsquare xscaled 2cm yscaled 4cm withcolor \MPcolor{mycola};
fill fullsquare xscaled 2cm yscaled 4cm xshifted 2cm withcolor
\MPcolor{mycolb};
fill fullsquare xscaled 2cm yscaled 4cm xshifted 4cm withcolor
\MPcolor{mycolc};
\stopMPcode
\par
\startcolor[mycola]T\stopcolor
\startcolor[mycolb]T\stopcolor
\startcolor[mycolc]T\stopcolor
\stoptext
2015-04-17 1:27 GMT+02:00 Hans Hagen
On 4/16/2015 11:29 PM, Christian Prim wrote:
Hi Hans
sorry to ask again. But the different color handling between context-version before 2015.04.14 00:54 and context-version 2015.04.14 00:54 is remarkable and annoying.
See attached pdf-documents. Both have exactly the same source:
\usemodule[tikz] \setupbodyfont[40pt] \starttext \definecolor[mycola][c=0.23,m=0.58,y=0.88,k=0.45] \definecolor[mycolb][c=0.115,m=0.29,y=0.44,k=0.225] \definecolor[mycolc][c=0.055,m=0.145,y=0.22,k=0.1125]
\starttikzpicture \node[fill=mycola,rectangle, minimum height=4cm,minimum width=2cm,anchor=south west] {\startcolor[mycola]T\stopcolor}; \node[fill=mycolb,rectangle, minimum height=4cm,minimum width=2cm,anchor=south west] at (2,0) {\startcolor[mycolb]T\stopcolor}; \node[fill=mycolc,rectangle, minimum height=4cm,minimum width=2cm,anchor=south west] at (4,0) {\startcolor[mycolc]T\stopcolor}; \stoptikzpicture \stoptext
I write in each box the letter T with exactly the same color as the underlying box. Textcolor is set using context, fill color of the box is set using tikz.
old.pdf shows the correct color handling. The letter T has exactly the same color as the box and therefore disappears.
With newest beta (new.pdf) the letter T is visible.
Must I now stay with an old beta or can this "bug" be fixed? Perhaps it's a bug in tikz...
i found out that it relates to the lack of gray support (which in fact seems to be rgb support)
so the next beta might work ok for you (no upload yet)
Hans
----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------
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