Fwd: 3 new lilypond issues

[Urs Liska]

forwarding ...


-------- Ursprüngliche Nachricht --------
Von: Jan Hakenberg <address@hidden>
Gesendet: 6. Dezember 2014 07:35:15 MEZ
An: James <address@hidden>
CC: Urs Liska <address@hidden>
Betreff: 3 new lilypond issues

Hi,

I briefly searched the "open issues", but did not find the below
suggestions/observations listed.

My Platform: Windows 7
LilyPond: 2.19.15


1) ----------------------------

In the docs
"LilyPond Application Usage  1.2 Command-line usage"
the command line parameter "-dclip-systems"
is explained by
"Generate cut-out snippets of a score."

I think it would be helpful to add a remark that this parameter has no
effect unless
"clip-regions" are specified in the ly file.

Also, it might be worth mentioning that for the export to happen, the status
-dprint-pages is required (as opposed to -dno-print-pages)
The requirement is not necessarily intuitive since -dpreview works fine
with -dno-print-pages.

Testing command was for instance:
lilypond.exe -dno-print-pages -dclip-systems --png bwv0853_2.ly



2) ----------------------------

no warning message is given if true or false values are replaced by
anything.
In the example below, the default value #t is chosen internally.

>>> =====

"c:\Program Files (x86)\LilyPond\usr\bin\lilypond.exe"
-dinclude-book-title-preview=ANYTHING -dpreview --png bwv0853_2.ly
GNU LilyPond 2.19.15
Processing `bwv0853_2.ly'
Parsing...
Interpreting music...[8][16][24][32][40][48][56][64][72][80][88][88]
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 2 or 3 pages...
Drawing systems...
Layout output to `bwv0853_2.ps'...
Converting to PNG...
Layout output to `bwv0853_2.preview.eps'...
Converting to PNG...
Success: compilation successfully completed

<<< =====


3) ----------------------------

-danti-alias-factor=1 works fine, but -danti-alias-factor=2
does not convert the output to the high quality images.
I think this might be a familar topic on Windows.

>>> =====

"c:\Program Files (x86)\LilyPond\usr\bin\lilypond.exe"
-danti-alias-factor=2 --png bwv0853_2.ly
GNU LilyPond 2.19.15
Processing `bwv0853_2.ly'
Parsing...
Interpreting music...[8][16][24][32][40][48][56][64][72][80][88][88]
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 2 or 3 pages...
Drawing systems...
Layout output to `bwv0853_2.ps'...
Converting to PNG...'pngtopnm' is not recognized as an internal or external
comm
and,
operable program or batch file.

fatal error: GS exited with status: 255

<<< =====


thank you!
many greetings,
Jan