Re: [NTG-context] update old MP code
Am 01.09.22 um 18:45 schrieb Taco Hoekwater: On 1 Sep 2022, at 18:28, Henning Hraban Ramm via ntg-context wrote: Am 01.09.22 um 15:40 schrieb Taco Hoekwater: Adding grouping makes sense: def Moire(expr size)(text densities)= begingroup endgroup As that at least makes it an expression instead of a statement list. But also depthless() is never defined? Oops, I forgot to copy that part (confusing source...) It still doesn’t compile: Missing definition of “width()”, from this line: xs := width(q)-width(p); Adding that should do the trick. YES, thank you! I never know which function is part of MetaPost/MetaFun, my editor’s syntax highlighting is incomplete... Hraban moireetest.tex Description: TeX document ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
Re: [NTG-context] update old MP code
> On 1 Sep 2022, at 18:28, Henning Hraban Ramm via ntg-context > wrote: > > Am 01.09.22 um 15:40 schrieb Taco Hoekwater: >> Adding grouping makes sense: >>> >>> def Moire(expr size)(text densities)= >> begingroup >> endgroup >> As that at least makes it an expression instead of a statement list. >> But also depthless() is never defined? > > Oops, I forgot to copy that part (confusing source...) > > It still doesn’t compile: Missing definition of “width()”, from this line: > > xs := width(q)-width(p); Adding that should do the trick. Best wishes. Taco — Taco Hoekwater E: t...@bittext.nl genderfluid (all pronouns) ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
Re: [NTG-context] update old MP code
Am 01.09.22 um 15:40 schrieb Taco Hoekwater:
Adding grouping makes sense:
def Moire(expr size)(text densities)=
begingroup
endgroup
As that at least makes it an expression instead of a statement list.
But also depthless() is never defined?
Oops, I forgot to copy that part (confusing source...)
It still doesn’t compile:
---
\setupbodyfont[plex,ss,8bp]
\startreusableMPgraphic{moiree}
% 1994 by Bogusław Jackowski (GUST)
defaultfont := "\truefontname{Sans}";
pickup pencircle scaled 0.3bp;
defaultscale := .8;
linecap := butt;
labeloffset := 1.5bp;
defaultthickness:=.3bp; % 5 pixels at 1200 dpi
% tertiarydef p ulshiftedto s = p shifted (s-ulcorner(p)) enddef;
vardef depthless(expr p) =
save p_; picture p_;
p_:=p if string p: infont defaultfont scaled defaultscale fi;
setbounds p_ to (xpart(llcorner p_),0)--(xpart(lrcorner p_),0)--
urcorner(p_)--ulcorner(p_)--cycle;
p_
enddef;
def Moire(expr size)(text densities)=
begingroup
save dn,a,b,k,labit,n,p,q,s,xs;
n := 32;
dn := 0;
for i := densities:
d[incr dn] := abs(i);
if i>1: labit[dn]:=1; fi
endfor
a := min(d[1],d[dn]);
b := max(d[1],d[dn]);
image(
for i=-n upto n:
draw (0,i*in/a)--(size,i*in/b);
%withpen pencircle scaled 3/5defaultthickness;
endfor
for i=1 upto dn:
k:=(a/d[i]-1)/(a/b-1);
if known labit[i]:
string s; s:=decimal(d[i]); xs:=0;
picture p,q; q := p := depthless(s);
if i=dn:
q := depthless(s & " lpi");
xs := width(q)-width(p);
fi
label.top(q, (k*size+1/2xs, n*in/a+1.5mm));
fi
draw (k*size, n*in/a+1.5mm)--(k*size, k[n*in/a,n*in/b]+.5mm);
draw (k*size, -n*in/a-1.5mm)--(k*size, -k[n*in/a,n*in/b]-.5mm);
endfor
)
endgroup;
enddef;
draw Moire(57.5mm)(200, 175, 150, 125, 100, 75);
% ulshiftedto (142mm, 38.5mm);
\stopreusableMPgraphic
\starttext
\reuseMPgraphic{moiree}
\stoptext
moireetest.tex
Description: TeX document
___
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage : https://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : https://contextgarden.net
___
Re: [NTG-context] update old MP code
Hi Hraban, Adding grouping makes sense: > > def Moire(expr size)(text densities)= begingroup > save dn,a,b,k,labit,n,p,q,s,xs; > n := 32; > dn := 0; > for i := densities: >d[incr dn] := abs(i); >if i>1: labit[dn]:=1; fi > endfor > a := min(d[1],d[dn]); > b := max(d[1],d[dn]); > image( >for i=-n upto n: > draw (0,i*in/a)--(size,i*in/b); > %withpen pencircle scaled 3/5defaultthickness; >endfor >for i=1 upto dn: > k:=(a/d[i]-1)/(a/b-1); > if known labit[i]: >string s; s:=decimal(d[i]); xs:=0; >picture p,q; q := p := depthless(s); >if i=dn: > q := depthless(s & " lpi"); > xs := width(q)-width(p); >fi >label.top(q, (k*size+1/2xs, n*in/a+1.5mm)); > fi > draw (k*size, n*in/a+1.5mm)--(k*size, k[n*in/a,n*in/b]+.5mm); > draw (k*size, -n*in/a-1.5mm)--(k*size, -k[n*in/a,n*in/b]-.5mm); >endfor > ) endgroup > enddef; > draw Moire(57.5mm)(200, 175, 150, 125, 100, 75); > % ulshiftedto (142mm, 38.5mm); > \stopreusableMPgraphic As that at least makes it an expression instead of a statement list. But also depthless() is never defined? — Taco Hoekwater E: t...@bittext.nl genderfluid (all pronouns) ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context webpage : https://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : https://contextgarden.net ___
[NTG-context] update old MP code
Hi,
here’s a snippet of old Metapost code that I’d like to use in ConTeXt.
I didn’t manage to update it to MetaFun – can you help me?
Hraban
-
\setupbodyfont[plex,ss,8bp]
\startreusableMPgraphic{moiree}
% 1994 by Bogusław Jackowski (GUST)
defaultfont := "\truefontname{Sans}";
pickup pencircle scaled 0.3bp;
defaultscale := .8;
linecap := butt;
labeloffset := 1.5bp;
defaultthickness:=.3bp; % 5 pixels at 1200 dpi
% tertiarydef p ulshiftedto s = p shifted (s-ulcorner(p)) enddef;
def Moire(expr size)(text densities)=
save dn,a,b,k,labit,n,p,q,s,xs;
n := 32;
dn := 0;
for i := densities:
d[incr dn] := abs(i);
if i>1: labit[dn]:=1; fi
endfor
a := min(d[1],d[dn]);
b := max(d[1],d[dn]);
image(
for i=-n upto n:
draw (0,i*in/a)--(size,i*in/b);
%withpen pencircle scaled 3/5defaultthickness;
endfor
for i=1 upto dn:
k:=(a/d[i]-1)/(a/b-1);
if known labit[i]:
string s; s:=decimal(d[i]); xs:=0;
picture p,q; q := p := depthless(s);
if i=dn:
q := depthless(s & " lpi");
xs := width(q)-width(p);
fi
label.top(q, (k*size+1/2xs, n*in/a+1.5mm));
fi
draw (k*size, n*in/a+1.5mm)--(k*size, k[n*in/a,n*in/b]+.5mm);
draw (k*size, -n*in/a-1.5mm)--(k*size, -k[n*in/a,n*in/b]-.5mm);
endfor
)
enddef;
draw Moire(57.5mm)(200, 175, 150, 125, 100, 75);
% ulshiftedto (142mm, 38.5mm);
\stopreusableMPgraphic
\starttext
\reuseMPgraphic{moiree}
\stoptext
-
moireetest.tex
Description: TeX document
___
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : ntg-context@ntg.nl / https://www.ntg.nl/mailman/listinfo/ntg-context
webpage : https://www.pragma-ade.nl / http://context.aanhet.net
archive : https://bitbucket.org/phg/context-mirror/commits/
wiki : https://contextgarden.net
___
