I am attempting to color the walls of different systems with different
colors using the -attr flag and a user defined wall:
portion of code in scrap:
line u:wall -attr color "(0.1, 0.2, 0.8);"
1392.9359853260457 -71.62435442682576
1395.5759853260456 125.20564557317425
endline
portion of code in layout:
def l_u_wall (expr P)=
T:=identity;
if known(ATTR__color):
pickup PenA;
draw P withpen PenA withcolor ATTR__color\n
fi;
enddef;
initsymbol(\"l_u_wall\");
I am not having any success however. Is it possible to set and read
attributes from lines as I am trying to do? Is somebody aware of an
alternate way to pass in a color argument to the metapost definition
(instead of defining separate walls for each different colored system)?
Thanks,
Carl
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://mailman.speleo.sk/pipermail/therion/attachments/20090911/9a72ff62/attachment.html>
