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From: =?iso-8859-1?q?Daniel=20Hernandez=20Hernandez?= <danielhhz_metafont@yahoo.es>
Subject: holes in a figure
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Hello

I'm newie on metafont. I'm reading the book of
John D. Hobby: A User's manual for MetaPost,
but I don't find the way of make paths with holes.
For example if I like fill the char "o" I use a second
path and fill white the hole with the unfill command.

fill (100,0)..(0,100)..(-100,0)..(0,-100)..cycle;
unfill (50,0)..(0,50)..(-50,0)..(0,-50)..cycle;

But this way is not exactly that I like, because
the unfill command clear the background. Another
way is cut the filled area.

fill (100,0)..(0,100)..(-100,0)..(0,-100)..(100,0)
  --(50,0)..(0,50)..(-50,0)..(0,-50)..(50,0)--cycle;

But in this way if I draw the path appears a line
that I don't like to draw, ie (100,0)--(50,0).

Exists a command like

fill p rested q

That draw a path p with a hole formed by q?

Exists other conjuntists commands like intersections,
unions, complements, xor?

Thanks
Daniel Hernandez

___________________________________________________
Yahoo! Messenger - Nueva versión GRATIS
Super Webcam, voz, caritas animadas, y más...
http://messenger.yahoo.es

From - Mon Jan  5 21:16:20 2004
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From: "Laurence Finston" <lfinsto1@gwdg.de>
Cc: metafont@ens.fr
Date: Mon, 05 Jan 2004 21:16:13 +0100
Subject: Re: [metafont] holes in a figure
To: Daniel Hernandez Hernandez  <danielhhz_metafont@yahoo.es>
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One way of doing what you want is to draw the path with a pen of the correct
width. You'll have to adjust the coordinates of the points on your path, or
scale it before you draw it.

I strongly recommend that you study Knuth's _The METAFONTbook_.
The MetaPost documentation is rather terse.

Laurence Finston

-------------------
> Hello
> 
> I'm newie on metafont. I'm reading the book of
> John D. Hobby: A User's manual for MetaPost,
> but I don't find the way of make paths with holes.
> For example if I like fill the char "o" I use a second
> path and fill white the hole with the unfill command.
> 
> fill (100,0)..(0,100)..(-100,0)..(0,-100)..cycle;
> unfill (50,0)..(0,50)..(-50,0)..(0,-50)..cycle;
> 
> But this way is not exactly that I like, because
> the unfill command clear the background. Another
> way is cut the filled area.
> 
> fill (100,0)..(0,100)..(-100,0)..(0,-100)..(100,0)
>   --(50,0)..(0,50)..(-50,0)..(0,-50)..(50,0)--cycle;
> 
> But in this way if I draw the path appears a line
> that I don't like to draw, ie (100,0)--(50,0).
> 
> Exists a command like
> 
> fill p rested q
> 
> That draw a path p with a hole formed by q?
> 
> Exists other conjuntists commands like intersections,
> unions, complements, xor?
> 
> Thanks
> Daniel Hernandez
> 
> ___________________________________________________
> Yahoo! Messenger - Nueva versión GRATIS
> Super Webcam, voz, caritas animadas, y más...
> http://messenger.yahoo.es
> 

From - Mon Jan  5 23:46:43 2004
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Date: Mon, 05 Jan 2004 16:47:28 -0600
From: Dan Luecking <luecking@uark.edu>
Subject: Re: [metafont] holes in a figure
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At 08:12 PM 1/5/2004 +0100, you wrote:
>Hello
>
>I'm newie on metafont. I'm reading the book of
>John D. Hobby: A User's manual for MetaPost,
>but I don't find the way of make paths with holes.
>For example if I like fill the char "o" I use a second
>path and fill white the hole with the unfill command.
>
>fill (100,0)..(0,100)..(-100,0)..(0,-100)..cycle;
>unfill (50,0)..(0,50)..(-50,0)..(0,-50)..cycle;
>
>But this way is not exactly that I like, because
>the unfill command clear the background. Another
>way is cut the filled area.

Draw on a different picture, then add that picture:

picture X;
X:=
begingroup
   save currentpicture
   fill (100,0)..(0,100)..(-100,0)..(0,-100)..cycle;
   unfill (50,0)..(0,50)..(-50,0)..(0,-50)..cycle;
   cullit;
   currentpicture
endgroup;
% now the "O" is on picture X.
addto currentpicture also X;




>But in this way if I draw the path appears a line
>that I don't like to draw, ie (100,0)--(50,0).

What's the harm if it isn't visible? If you actually see a line of
white pixels, trace them again:
  draw (100,0)--(50,0) withpen penspeck;

>Exists a command like
>
>fill p rested q

Unfortunately, no.


Dan


Daniel H. Luecking
Department of Mathematical Sciences
University of Arkansas 


From - Fri Jan  9 15:10:39 2004
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Date: Fri, 9 Jan 2004 15:09:20 +0100
From: franciszek holop <fred@pentacom.sk>
To: metafont@ens.fr
Subject: graphs and ticks
Message-ID: <20040109140920.GA8770@pentacom.sk>
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hello list,

i really would like to learn metapost, mostly it's graph part.

i am used to strange syntaxes and i am really not the wysiwyg
guy from across the street, but hell, this is the hardest thing
i have come over in years.  maybe i am just stupid..  must be this.

please consider the following simple example:

%  year2001.mp
input graph
warningcheck:=0;
defaultfont:="ptmr8r";

beginfig(2001)
  draw begingraph(6cm,4cm)
    gdraw "2001.d" withpen pencircle scaled 2bp withcolor blue;
    glabel.ulft(btex man etex, 6);
    gdraw "2001.d" withpen pencircle scaled 2bp withcolor red;
    glabel.ulft(btex woman etex, 6);

    otick.bot("jan", 1);
    otick.bot("dec", 12);
    autogrid(,otick.lft);
  endgraph;
endfig;

% 2001.d
2504
2504
2504
2505
2505
2507
2507
2507
2510
2511
2515
2515

issues:
1. defaultfont:="ptmr8r"; but the labels (not the ticks) are
   still typeset using cmr12.  i have some 10 graphs all in all,
   and ultimately i want to put them into one single report.
   ``mptopdf'' embeds the font every time, and the file is growing
   very big.  the mpgraph.pdf says, the labels are typeset using
   defaultfont, so why cmr12?

2. if the data keeps repeating, or the delta's are small, metapost
   happily makes ticks labeled the same number.  at least, that's my
   impression.  for example the y axis of the graph from the above
   datafile looks like this:
         +---------
   2520 -+
         |
   2510 -+
         |
   2510 -+
         |
   2500 -+
         |
   2500 -+
         |
   2490 -+
         |
         +---------
   of course when i set manually:

    otick.lft("2490", 2490);
    otick.lft("2500", 2500);
    otick.lft("2510", 2510);
    otick.lft("2520", 2520);

   everything is fine, but what if i had thousands of graphs to make,
   do i have to check every one of them for this issue?

3. how can i control the number of ticks on my graphs?
   for example i would like to unify the graphs in a way that
   the number of ticks on axis y is always 4?

-f
ps. i am having problems getting the archive, so forgive me
    if this is old bone...
-- 
minds, like parachutes, work only when open.

From - Mon Jan 12 06:49:42 2004
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To: franciszek holop <fred@pentacom.sk>, metafont@ens.fr
Subject: Re: [metafont] graphs and ticks
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franciszek holop schrieb:

> hello list,
> 
> i really would like to learn metapost, mostly it's graph part.
> 
> i am used to strange syntaxes and i am really not the wysiwyg
> guy from across the street, but hell, this is the hardest thing
> i have come over in years.  maybe i am just stupid..  must be this.
> 
> please consider the following simple example:
> 
> %  year2001.mp
> input graph
> warningcheck:=0;
> defaultfont:="ptmr8r";
> 
> beginfig(2001)
>   draw begingraph(6cm,4cm)
>     gdraw "2001.d" withpen pencircle scaled 2bp withcolor blue;
>     glabel.ulft(btex man etex, 6);
>     gdraw "2001.d" withpen pencircle scaled 2bp withcolor red;
>     glabel.ulft(btex woman etex, 6);
> 
>     otick.bot("jan", 1);
>     otick.bot("dec", 12);
>     autogrid(,otick.lft);
>   endgraph;
> endfig;
> 
> % 2001.d
> 2504
> 2504
> 2504
> 2505
> 2505
> 2507
> 2507
> 2507
> 2510
> 2511
> 2515
> 2515
> 
> issues:
> 1. defaultfont:="ptmr8r"; but the labels (not the ticks) are
>    still typeset using cmr12.  i have some 10 graphs all in all,
>    and ultimately i want to put them into one single report.
>    ``mptopdf'' embeds the font every time, and the file is growing
>    very big.  the mpgraph.pdf says, the labels are typeset using
>    defaultfont, so why cmr12?

Labels between btex ... etex are typeset by TeX, not by Metapost,
so in your case
glabel.ulft(btex woman etex, 6);
will use the default tex font cmr12
glabel.ulft("woman", 6);
will use the metapost defaultfont ptmr8r.

Sorry, that i can't help you further.

Greetings Lutz

From - Tue Jan 13 09:33:33 2004
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From: blancdecoeur <blancdecoeur@wanadoo.fr>
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To: metafont@ens.fr
Subject: texte en couleur dans un fichier metapost
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------=_Part_40233_11528484.1073982809281
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bonjour
Comment doit on faire pour mettre du texte en couleur dans un fichier METAPOST converti en en format pdf par le compilateur mptopdf?
------=_Part_40233_11528484.1073982809281
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<P>bonjour</P>
<P>Comment doit on faire pour mettre du texte en couleur dans un fichier METAPOST converti en en format pdf par le compilateur mptopdf?</P>
<P>&nbsp;</P>
<P>&nbsp;</P>
------=_Part_40233_11528484.1073982809281--


From - Tue Jan 13 18:52:14 2004
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Date: Tue, 13 Jan 2004 18:52:11 +0100
From: franciszek holop <fred@pentacom.sk>
To: metafont@ens.fr
Subject: \usepackage{charter}'s ``-'' character
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hello,

this is the only font list i know (so far) so forgive me
if this question is OT, but i thought people on this list
make fonts, and so i thought the list could answer this
little question that keeps me puzzled for quite some time...

it is related to the charter font's ``-'' character.
this character has a negative spacing (forgive my
non-technical jargon), so e.g. ``e-mail'' appears
typeset as ``email'' with a very peculiar hyphen
between the ``e'' and ``m''.  how is this phenomenon
called and what's its function (if any).

thanks for your time,
-f
-- 
smile, its the second best thing you can do with your lips.

From - Wed Jan 14 09:24:21 2004
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From: Michael Talbot-Wilson <mtw@birdseye.view.net.au>
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To: metafont@ens.fr
Subject: Re: [metafont] \usepackage{charter}'s ``-'' character
In-Reply-To: <20040113175211.GA12893@pentacom.sk>
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Ye 2004-01-13 18:52 +0100, franciszek holop skribis:

> it is related to the charter font's ``-'' character.
> this character has a negative spacing (forgive my
> non-technical jargon), so e.g. ``e-mail'' appears
> typeset as ``email'' with a very peculiar hyphen
> between the ``e'' and ``m''.  how is this phenomenon
> called and what's its function (if any).

Couldn't reproduce your problem in Plain TeX with

\font\charter=bchr8r \charter
Send me an e-mail sweetie.
\bye

Looks fine with xdvi and gv.

I seem to remember that you can get some such effect if you try to
hand-edit the PostScript produced by dvips, but I don't know the
cause.

From - Wed Jan 14 10:13:22 2004
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Date: Wed, 14 Jan 2004 10:13:13 +0100
From: franciszek holop <fred@pentacom.sk>
To: metafont@ens.fr
Subject: Re: [metafont] \usepackage{charter}'s ``-'' character
Message-ID: <20040114091313.GA31389@pentacom.sk>
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> Couldn't reproduce your problem in Plain TeX with
> 
> \font\charter=bchr8r \charter
> Send me an e-mail sweetie.
> \bye

my bad.  must have been another font.

but to see what i am talking about, you could have a look
at the fontinstallationguide.pdf by Philipp Lehman, e.g.
page 9 paragraph 1 word "step-by-step"

-f
-- 
the perfect guest is one who makes his host feel at home.

From - Wed Jan 14 10:23:39 2004
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Date: Wed, 14 Jan 2004 10:23:35 +0100
From: franciszek holop <fred@pentacom.sk>
To: metafont@ens.fr
Subject: Re: [metafont] \usepackage{charter}'s ``-'' character
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> Couldn't reproduce your problem in Plain TeX with
> 
> \font\charter=bchr8r \charter
> Send me an e-mail sweetie.
> \bye

i wasnt wrong after all.

look at this example (it's a hungarian poem ;-):
% radnoti.tex
\documentclass[a5paper]{memoir}
\usepackage[T1]{fontenc}
\usepackage[latin2]{inputenc}
\usepackage[magyar]{babel}
\usepackage{charter}

\begin{document}

\poemtitle{Vihar előtt}

\begin{verse}
Az ormon üldögélsz s térdeden néked ért\\
ifjú asszony alszik, mögötted szakállas\\
haditettek, vigyázz! kár lenne éltedért

s kár világodért, mit enmagad kapartál\\
tíz kemény körömmel életed köré, míg\\
körötted körbe-körbe lengett a halál

és íme újra leng! s lepotyognak a kert\\
fészkei rémülten a fák tetejéről\\
s minden összetörik! figyeld az eget, mert

villámlás rengeti már s cibálja a szép\\
kisdedek ágyát s mint ők oly vékonyan és\\
sírva sirdogál most az alvó férfinép;

hogy álmára fú a szél, forog; dörmög és\\
fölriad! s bámul rád, ki ébren üldögélsz\\
míg szálldos körötted körbe röpke dörgés,

mert takaros csata készül itt, a cifra\\
szél beszél felőle fennen és a felleg;\\
jó lesz szerelmed terítni asszonyodra.
\end{verse}

\end{document}

% end

amaaq> pdflatex radnoti && pdflatex radnoti

look for ``körbe-körbe'' in the pdf (last line
of the 2nd stanza.

-f
-- 
envy is thin because it bites but never eats.

From - Wed Jan 14 11:32:45 2004
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From: Michael Talbot-Wilson <mtw@birdseye.view.net.au>
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Subject: Re: [metafont] \usepackage{charter}'s ``-'' character
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Ye 2004-01-14 10:23 +0100, franciszek holop skribis:

> > Couldn't reproduce your problem in Plain TeX with
> >
> > \font\charter=bchr8r \charter
> > Send me an e-mail sweetie.
> > \bye
>
> i wasnt wrong after all.
>
> look at this example (it's a hungarian poem ;-):
> % radnoti.tex
> \documentclass[a5paper]{memoir}
> \usepackage[T1]{fontenc}
> \usepackage[latin2]{inputenc}
> \usepackage[magyar]{babel}
> \usepackage{charter}
> ...

I haven't got all of this (e.g. memoir.cls, magyar), and I know little
of LaTeX.  Someone else will have to help you.  I simply report that
there is nothing wrong with the Charter Roman font here.  It prints a
normal hyphen without backspacing.

From - Wed Jan 14 13:13:10 2004
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To: metafont@ens.fr
Subject: Re: [metafont] \usepackage{charter}'s ``-'' character 
In-reply-to: Your message of Wed, 14 Jan 2004 21:02:28 +1030.
             <Pine.LNX.4.53.0401142047480.4428@chameleon.view.net.au> 
Date: Wed, 14 Jan 2004 12:13:05 +0000
From: Robin Fairbairns <Robin.Fairbairns@cl.cam.ac.uk>
Message-Id: <E1AgjtR-0004B4-00@wisbech.cl.cam.ac.uk>

Michael Talbot-Wilson wrote:

> Ye 2004-01-14 10:23 +0100, franciszek holop skribis:
> 
> > > Couldn't reproduce your problem in Plain TeX with
> > >
> > > \font\charter=bchr8r \charter
> > > Send me an e-mail sweetie.
> > > \bye
> >
> > i wasnt wrong after all.
> >
> > look at this example (it's a hungarian poem ;-):
> > % radnoti.tex
> > \documentclass[a5paper]{memoir}
> > \usepackage[T1]{fontenc}
> > \usepackage[latin2]{inputenc}
> > \usepackage[magyar]{babel}
> > \usepackage{charter}
> > ...
> 
> I haven't got all of this (e.g. memoir.cls, magyar), and I know little
> of LaTeX.  Someone else will have to help you.  I simply report that
> there is nothing wrong with the Charter Roman font here.  It prints a
> normal hyphen without backspacing.

fwiw, i installed memoir and ran the job ... and had no problem,
either with my old tetex 1.0.7 or with my current tetex 2.0.2
installation.

i wonder if an update of franciszek's font metrics is in order?

From - Wed Jan 14 17:26:58 2004
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Date: Wed, 14 Jan 2004 17:26:52 +0100
From: franciszek holop <fred@pentacom.sk>
To: metafont@ens.fr
Subject: Re: [metafont] \usepackage{charter}'s ``-'' character
Message-ID: <20040114162652.GA9796@pentacom.sk>
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> fwiw, i installed memoir and ran the job ... and had no problem,
> either with my old tetex 1.0.7 or with my current tetex 2.0.2
> installation.

can you send me your output?

> i wonder if an update of franciszek's font metrics is in order?

i have a stock teTeX 2.0.2 distribution.

did you have a look at the fontinstallationguide.pdf?

-f
-- 
drinking kills brain cells, but just the weak ones...

From - Wed Jan 14 17:50:13 2004
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Date: Wed, 14 Jan 2004 17:50:10 +0100
From: franciszek holop <fred@pentacom.sk>
To: metafont@ens.fr
Subject: Re: [metafont] \usepackage{charter}'s ``-'' character
Message-ID: <20040114165010.GB9796@pentacom.sk>
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hmm, Robin Fairbairns said that
> fwiw, i installed memoir and ran the job ... and had no problem,
> either with my old tetex 1.0.7 or with my current tetex 2.0.2
> installation.
> 
> i wonder if an update of franciszek's font metrics is in order?

bingo.  at last i have found out, that most likely the fault is mine.
i arrived at this conclusion, because viewing w/gv(3.5.8) gives me the
curious backspacing, but xpdf(2.02pl1) does not. i dont know what to
do yet, i thought these programs use the same metrics the same way,
but this is really OT now, so thanks for your time.

-f
-- 
solitude.  a great place to visit, a bad place to stay

From - Wed Jan 21 16:02:02 2004
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Date: Wed, 21 Jan 2004 08:01:55 -0700 (MST)
From: "Nelson H. F. Beebe" <beebe@math.utah.edu>
To: liste metafont <metafont@ens.fr>
Cc: beebe@math.utah.edu
X-US-Mail: "Center for Scientific Computing, Department of Mathematics, 110
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Subject: 3DLDF 1.1.5.1 release
Message-ID: <CMM.0.92.0.1074697315.beebe@psi.math.utah.edu>

3DLDF 1.1.5.1 has been released:

	http://ftp.gnu.org/gnu/3dldf
	http://wwwuser.gwdg.de/~lfinsto1
	http://www.gnu.org/directory/graphics/3D/3DLDF.html

[3DLDF is a GNU package for three-dimensional drawing with MetaPost
output.]

-------------------------------------------------------------------------------
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- University of Utah                    FAX: +1 801 581 4148                  -
- Department of Mathematics, 110 LCB    Internet e-mail: beebe@math.utah.edu  -
- 155 S 1400 E RM 233                       beebe@acm.org  beebe@computer.org -
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Subject: Boldness and scaling of font
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Hi,

First, I should say I'm new to metafont. So, the next questions might be 
easy to answer. Now, what I was trying do was to create with metafont a 
character I use quite often. It can be found in the attachment. 
Unfortunately, I have two problems:

1. the character doesn't scale to font sizes greater than 10pt
2. the character looks too bold in comparison with the cm font when I 
produce a pdf or ps file

So, the question is what can I do to fix this?

Thanks,

Jeroen Ketema

PS1 I'm using MikTeX 2.3
PS2 Any other comments on the font files are also welcome

_________________________________________________________________
MSN Search, for accurate results! http://search.msn.nl

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From - Thu Jan 29 20:26:20 2004
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Date: Thu, 29 Jan 2004 13:14:33 -0600
From: Dan Luecking <luecking@uark.edu>
Subject: Re: [metafont] Boldness and scaling of font
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At 12:16 PM 1/28/2004 +0100, you wrote:

>Hi,
>
>First, I should say I'm new to metafont. So, the next questions might be 
>easy to answer. Now, what I was trying do was to create with metafont a 
>character I use quite often. It can be found in the attachment. 
>Unfortunately, I have two problems:
>
>1. the character doesn't scale to font sizes greater than 10pt

Since you have no lmerge12.mf, Change the .sty file so it scales lmerge10:
Instead of:
\DeclareFontShape{OT1}{lmerge}{m}{n}
    {  <5> <6> <7> <8> <9> <10> <12> gen * lmerge
       <10.95><14.4><17.28><20.74><24.88> lmerge10
    }{}

use:
\DeclareFontShape{OT1}{lmerge}{m}{n}
    {  <5> <6> <7> <8> <9> <10> gen * lmerge
       <10.95><12><14.4><17.28><20.74><24.88> lmerge10
    }{}

That works for me.

>2. the character looks too bold in comparison with the cm font when I 
>produce a pdf or ps file

You can't really get good display in pdf with a metafont font. Acrobat reader
(prior to version 6) didn't display bitmap fonts too well. But in fact, all
low resolution devices (screens) are going to have a hard time with
horizontal and vertical segments (that's when being off by 1 pixel is
glaringly evident). GSview therefore gives a result similar to AR. You should
judge the printed version. You don't say which you base this comparison on.
 From here, it looks ok printed by AR5 and GSview.


Dan


Daniel H. Luecking
Department of Mathematical Sciences
University of Arkansas 


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> >1. the character doesn't scale to font sizes greater than 10pt
>
>Since you have no lmerge12.mf, Change the .sty file so it scales lmerge10:
>Instead of:
>\DeclareFontShape{OT1}{lmerge}{m}{n}
>    {  <5> <6> <7> <8> <9> <10> <12> gen * lmerge
>       <10.95><14.4><17.28><20.74><24.88> lmerge10
>    }{}
>
>use:
>\DeclareFontShape{OT1}{lmerge}{m}{n}
>    {  <5> <6> <7> <8> <9> <10> gen * lmerge
>       <10.95><12><14.4><17.28><20.74><24.88> lmerge10
>    }{}
>
>That works for me.

Yes, that works, but it it keeps the character at the 10pt size, which 
doesn't look very nice when the rest of the text is in 12pt.

> >2. the character looks too bold in comparison with the cm font when >I 
>produce a pdf or ps file
>
>You can't really get good display in pdf with a metafont font. Acrobat 
>reader
>(prior to version 6) didn't display bitmap fonts too well. But in fact, all
>low resolution devices (screens) are going to have a hard time with
>horizontal and vertical segments (that's when being off by 1 pixel is
>glaringly evident). GSview therefore gives a result similar to AR. You 
>should
>judge the printed version. You don't say which you base this comparison on.
>From here, it looks ok printed by AR5 and GSview.

The comparison is based on what comes out of my printer (Oce 8445) and AR6. 
What I did was look at the character and the \parallel cm character from 
latex on which it is based. However, what comes out of the printer looks 
just as "bad" as what I see in AR6, or the latest GSView for that matter.

What I suspect is that this may have to do with the fact that the cm font is 
a postscript font, while my character is a bitmap font. So, this raises the 
question if there is an easy way to produce a postscript font from a 
metafont file.

Thanks for the answer,

Jeroen Ketema

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