From: Hans Hagen <j.hagen@xs4all.nl>
To: Taco Hoekwater <taco@bittext.nl>,
mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Metapost: directionpoint gives unexpected point(?)
Date: Fri, 12 Feb 2021 11:03:05 +0100 [thread overview]
Message-ID: <91278517-bf06-bd22-5621-c5ca15a7a9a7@xs4all.nl> (raw)
In-Reply-To: <648158d2-9752-b793-5540-998959fcab66@xs4all.nl>
Hi,
Like this:
metapost.registerscript("scrutenized", function()
local p = mp.scan.path()
local r = math.round
local d = 10^mp.scan.numeric()
for i=1,#p do
local pi = p[i]
pi[1] = r(pi[1] * d) / d
pi[2] = r(pi[2] * d) / d
end
local x1 = r(p[1][1])
local y1 = r(p[1][2])
local n = 1
local t = { p[1], cycle = p.cycle }
for i=2,#p do
local pi = p[i]
local x2 = r(pi[1])
local y2 = r(pi[2])
if x1 ~= x2 or y1 ~= y2 then
n = n + 1
t[n] = p[i]
x1 = x2
y1 = y2
end
end
mp.inject.path(t)
end)
\stopluacode
\startMPdefinitions{doublefun}
newscriptindex mfid_scrutenized ; mfid_scrutenized := scriptindex
"scrutenized" ;
primarydef p scrutenized n =
runscript mfid_scrutenized p n
enddef ;
\stopMPdefinitions
and then
p[1] := p[1] scrutenized 5 ; % 5 decimals
p[2] := p[2] scrutenized 5 ; % 5 decimals
Hans
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prev parent reply other threads:[~2021-02-12 10:03 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-05 16:48 Mikael Sundqvist
2021-02-05 16:51 ` Mikael Sundqvist
2021-02-11 13:45 ` Mikael Sundqvist
2021-02-11 14:54 ` Hans Hagen
2021-02-11 16:41 ` Mikael Sundqvist
2021-02-12 8:35 ` Taco Hoekwater
2021-02-12 9:31 ` Mikael Sundqvist
2021-02-12 9:55 ` Taco Hoekwater
2021-02-12 9:53 ` Hans Hagen
2021-02-12 10:03 ` Hans Hagen [this message]
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