font display

font display

[John]

Hello group

selecting different font from S-MS1 "shift-left mouse button"
pull-down menu works all well, however I only have to do that to
change the default selection "started in .xsession" in-order to make
the math fonts to line up correctly when using maxima.el, other wise I
see characters being placed in the wrong location in mathematical
equations. 
my question is, why most other fonts work but my default is not in
this case. my default is what I like to keep and here it is.
emacs -bg black -fg white -bw 0 -fn -*-lucida-medium-r-*-sans-14-140-*-75-p-81-iso8859-1 &


thanks

Re: font display

[Peter Dyballa]

Am 22.10.2005 um 07:04 schrieb John:

> emacs -bg black -fg white -bw 0 -fn 
> -*-lucida-medium-r-*-sans-14-140-*-75-p-81-iso8859-1 &
>

A short answer: mathematical characters (glyphs) are outside the ISO 
8859-1 range. You could have more success with an iso10646-1 encoded 
font.

Beside this GNU Emacs is able to get the missing (mathematical) glyphs 
(outside ISO 8859-1) from other fonts of your system, or using 
etl-fixed. By creating fontsets you have the chance to direct GNU Emacs 
to use the specified fonts in the Unicode ranges of interest.

--
Greetings

   Pete

Build a man a fire and he'll be warm for a night, but set a man on fire 
and he'll be warm for the rest of his life.

Re: font display

[John]

Peter Dyballa <Peter_Dyballa@Web.DE> writes:

> Am 22.10.2005 um 07:04 schrieb John:
>
>> emacs -bg black -fg white -bw 0 -fn
>> -*-lucida-medium-r-*-sans-14-140-*-75-p-81-iso8859-1 &
>>
>
> A short answer: mathematical characters (glyphs) are outside the ISO 
> 8859-1 range. You could have more success with an iso10646-1 encoded 
> font.
>

my OP may have been not clear enough,
the problem is not in the mathematical characters, but in lining up
"location of" regular characters in their correct places when their is
a line break.

example
x^2, that is x to the power of 2. would show in most fonts like this:

  2 (this line has a space before the 2)
x   (this line does not have a space before the x)

the problem when using my default font any number of spaces before the 2
could exist thus not presenting the correct value, the further from
the beginning of the line the more spaces exist before the 2, i.e
could vary depending on the length of the equation as well.


> Beside this GNU Emacs is able to get the missing (mathematical) glyphs 
> (outside ISO 8859-1) from other fonts of your system, or using 
> etl-fixed. By creating fontsets you have the chance to direct GNU Emacs 
> to use the specified fonts in the Unicode ranges of interest.
>
> --
> Greetings
>
>   Pete
>
> Build a man a fire and he'll be warm for a night, but set a man on fire 
> and he'll be warm for the rest of his life.