Taco Hoekwater wrote:
Hans Hagen wrote:
Vit Zyka wrote:
Dear Metafun Wizards,
I have noticed some strange behaviour with box shading. It works OK
until some number of shadings. Please see example:
http://typokvitek.com/tmp/shade-many.pdf
Any idea for solving? Next not-minimal but small and illustrative
example can help.
works ok here; since it concerns independent mp runs, i cannot imagine
what goes wrong; mayeb a bad random numer; does your log say something?
My results are the same as Vit's example: The last 9 items are
not shaded but have 3 black sides and 1 white one
(with \write18 disabled, using a single \jobname-mpgraph.mp)
I don't know what is going, but at least I can reproduce the problem.
I'm attaching an example wrong image.
Taco
A minimal version is here. It shows the randomization is not the reason.
Shade disappears at 989th shade.
=======================================
\startuseMPgraphic{F}
def log(expr Xstart, Xstop)=
begingroup
save x, y, D, w, P;
pair D;
path P;
w := 2.5pt; w := w/2;
D := unitvector(Xstop-Xstart) rotated 90;
z1 = Xstart shifted (w*D);
z2 = Xstop shifted (w*D);
z3 = Xstop shifted (-w*D);
z4 = Xstart shifted (-w*D);
P := z1--z2{z2-z1}..{z4-z3}z3--z4{z4-z3}..{z2-z1}cycle;
P
endgroup
enddef;
path P;
x11 = 0;
x12 = \overlaywidth;
y11 = y12 = \overlayheight;
P:= log(z11,z12); linear_shade(P,8,(1,1,1),(0,0,0)); draw P;
\stopuseMPgraphic
\defineoverlay[F][\uniqueMPgraphic{F}]
\defineframed[F][offset=2mm,strut=yes,background=F,frame=off]
\starttext
\noindent\dorecurse{1000}{\F{\recurselevel} }
\stoptext
============================================
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