Re: Fwd: doc addition re. font sizes

[Graham Percival]

Eyolf Ostrem wrote:
> I sent this to the lilypond-devel list, but it doesn't seem to have come 
> through.

Thanks!  However...  (see below)

> 10.5.1 Setting global staff size:
>
>
> To set the global staff size, use set-global-staff-size.
>       #(set-global-staff-size 14)
> This sets the global default size to 14pt staff height and scales all fonts
> accordingly.

... this has already been done.

> Note that if you also change the default font family for the entire document,
> as described in 8.1.7 Font selection, some extra steps are needed.

Could you check the current manual about this tidbit?  I confess that I 
don't understand the font stuff, and since there's some uncertainty over 
how recent these suggestions are, I'd like some extra confirmation that 
this is good info to add.


> 8.1.7 Font selection:
>
> It is also possible to change the default font family for the entire
>  document. This is done by calling the make-pango-font-tree from within the
>  \paper block. The function takes names for the font families to use for
>  roman, sans serif and monospaced text. For example,
>
> \paper {
>    myStaffSize = #20
>    #(define fonts
>       (make-pango-font-tree "Times New Roman"
>                                   "Nimbus Sans"
>                                   "Luxi Mono"
>                                    (\myStaffSize 20)))
> }

This info is also already in the manual.


> myStaffSize is a random variable name; any name can be used (such as 'bolg'
>  in the example below).
> "20" in the last line should not be changed (unless you specifically want to
> alter the proportion between notes and staves); it is a hard-coded default
> value against which all other font size modifications are measured.
>
> Note that changes to the Pango font tree do not go well together with changes
> involving set-global-staff-size (see 10.5.1). If you change the global staff
> size, you should change myStaffSize to the same value.
>
> E.g.:
>
> #(set-global-staff-size 14)
>
> ...
>
> \paper {
>    bolg = #14
>    #(define fonts
>       (make-pango-font-tree "Garamond"
>                             "Gill Sans"
>                             "Lucida Console"
>                             (\bolg 20)))
> }

This info is not in the manual, but could you confirm that this is good 
(current, necessary, etc) info to add?


> (There also seemed to be a typo in the last line of the pango tree - it has
>  (/ myStaffSize 20); I assume it should be \myStaffSize)

Interesting; I simply assumed that it was a mathematical construct -- 
myStaffSize divided by 20.


Thanks again for your efforts to improve the manual; sorry for this 
confusion.  I've cc'd the -devel list; as long as you keep me on the CC 
list of your emails, I should get your responses even if -devel doesn't.

Cheers,
- Graham