Re: [PyX-devel] Strange font problem

[André W. <wo...@us...>]

Hi,

this was a rounding issue fixed in changeset 3080.


André


PS: Yeah, let's get an Augustiner Hell.


Am 14.04.2011 um 00:22 schrieb Michael SCHINDLER:

> Hell André and Jörg,
> 
> and here comes one of my favorite problems: ;-)
> I played around with different math fonts (useful for presentations
> and posters, etc) and tried out these two packages (one after the
> other, of course)
> 
> (A)  \usepackage{mathptmx}
> (B)  \usepackage{fourier}
> 
> In _both_ cases, I find that in mathematical mode, the letter "j" is
> far too wide, which does not occur if I run the "debug.tex" file
> created. Here is the minimal example:
> 
> ----------------------
> from pyx import *
> 
> text.set(mode="latex")
> text.set(texdebug="debug.tex")
> text.preamble(r"\usepackage{mathptmx}")
> #ext.preamble(r"\usepackage{fourier}")
> 
> c = canvas.canvas()
> c.text(0, 0, r"$x E_{ij}\quad ijnimjXQju$")
> c.writePDFfile("minimal")
> ----------------------
> 
> For archiving, I attach also PDFs of the PyX output.
> 
> In an analysis of the problem, I checked which file PyX actually uses,
> and I identified the following files:
> 
> (A) zptmcm7m.vf zptmcm7m.tfm (this might actually be different from
>    system to sytem, depending on the updmap configuration)
> (B) futmii.tfm futmii.vf
>    (Inside the virtual font, futri8t is used to produce the italic
>    letters.)
> 
> The funny thing is that when I run the debug.tex in both cases, they
> look OK, but in both cases they use the very same files (tfm + vf). I
> recognized the problem with the letter "j", but I have the impression,
> that also others are involved: Nearly all letters move a little bit
> when comparing the full alphabet. In the case (B), this is strongest
> for j,f,J,G,A,C,...  In the case (A) for j,f,C,p,M,...
> 
> One possible reason is the italic correction. I extracted the ratio
> of italic correction (CHARIC) and character width (CHARWD) in the
> virtual font. The largest ratios have
> 
> (CHARACTER C f 0.395454545455
> (CHARACTER C Y 0.33865248227
> (CHARACTER C V 0.307291666667
> (CHARACTER O 134 0.293296089385
> (CHARACTER O 135 0.293296089385
> (CHARACTER O 133 0.263819095477
> (CHARACTER C j 0.249211356467
> (CHARACTER C T 0.214532871972
> (CHARACTER O 140 0.198863636364
> (CHARACTER C r 0.195238095238
> (CHARACTER C t 0.186813186813
> (CHARACTER C W 0.18488372093
> (CHARACTER C i 0.173501577287
> (CHARACTER C I 0.166246851385
> 
> This is not precisely the visual list of problematic characters, but
> it was just my first idea ...
> 
> Best,
>  Michael
> 
> <fourier.pdf><mathptmx.pdf>------------------------------------------------------------------------------
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