@c M-x texinfo-all-menus-update
@c to automatically fill in these menus before saving changes
-@node Page settings
-@chapter Page settings
+@node Spacing issues
+@chapter Spacing issues
-This section deals with the presentation of output in pdf form.
+The global paper layout is determined by three factors: the page layout, the
+line breaks, and the spacing. These all influence each other. The
+choice of spacing determines how densely each system of music is set.
+This influences where line breaks are chosen, and thus ultimately, how
+many pages a piece of music takes.
+
+Globally spoken, this procedure happens in three steps: first,
+flexible distances (``springs'') are chosen, based on durations. All
+possible line breaking combinations are tried, and the one with the
+best results -- a layout that has uniform density and requires as
+little stretching or cramping as possible -- is chosen.
+
+After spacing and linebreaking, the systems are distributed across
+pages, taking into account the size of the page, and the size of the
+titles.
@menu
* Paper and pages::
* Music layout::
+* Vertical spacing::
+* Horizontal spacing::
+* Breaks::
+* Displaying spacing::
@end menu
@node Paper and pages
@section Paper and pages
-This section deals with the display of music on physical paper.
+This section deals with the boundaries that define the area
+that music can be printed inside.
@menu
* Paper size::
LilyPond will do page layout, set margins, and add headers and
footers to each page.
-@findex annotate-spacing
-@cindex Spacing, display of properties
-
-To graphically display the dimensions of vertical properties
-that may be altered for page formatting, use
-
-@example
-\paper @{
- annotate-spacing = ##t
-@}
-@end example
-
-@noindent
-@c FIXME: really bad vagueness due to bug in annotate-spacing. -gp
-Some unit dimensions are measured in staff spaces, while others
-are measured in millimeters.
-The pairs
-(@var{a},@var{b}) are intervals, where @var{a} is the lower edge and
-@var{b} the upper edge of the interval.
-
The default layout responds to the following settings in the
@code{\paper} block.
You can also define these values in Scheme. In that case @code{mm},
@code{in}, @code{pt}, and @code{cm} are variables defined in
-@file{paper-defaults.ly} with values in millimeters. That's why the
-value has to be multiplied in the example
+@file{paper-defaults.ly} with values in millimeters. That is why the
+value must be multiplied in the example
@example
\paper @{
@}
@end example
-@cindex copyright
-@cindex tagline
-
-The default footer is empty, except for the first page, where the
-@code{copyright} field from @code{\header} is inserted, and the last
-page, where @code{tagline} from @code{\header} is added. The default
-tagline is ``Music engraving by LilyPond (@var{version})''.@footnote{Nicely
-printed parts are good PR for us, so please leave the tagline if you
-can.}
-
The header and footer are created by the functions @code{make-footer}
and @code{make-header}, defined in @code{\paper}. The default
implementations are in @file{ly/@/paper@/-defaults@/.ly} and
@node Music layout
@section Music layout
-This section deals with the manner in which the music is printed
-within the boundaries defined by the @code{\paper} block.
-
-The global paper layout is determined by three factors: the page layout, the
-line breaks, and the spacing. These all influence each other. The
-choice of spacing determines how densely each system of music is set.
-This influences where line breaks are chosen, and thus ultimately, how
-many pages a piece of music takes.
-
-Globally spoken, this procedure happens in three steps: first,
-flexible distances (``springs'') are chosen, based on durations. All
-possible line breaking combinations are tried, and the one with the
-best results -- a layout that has uniform density and requires as
-little stretching or cramping as possible -- is chosen.
-
-After spacing and linebreaking, the systems are distributed across
-pages, taking into account the size of the page, and the size of the
-titles.
-
@menu
* Setting global staff size::
-* Selecting notation font size::
* Score layout::
-* Vertical spacing::
-* Vertical spacing of piano staves::
-* Horizontal spacing::
-* Line length::
-* Line breaking::
-* Page breaking::
@end menu
This manual: @ref{Selecting notation font size}.
-@node Selecting notation font size
-@subsection Selecting notation font size
-
-The easiest method of setting the font size of any context, is by
-setting the @code{fontSize} property.
-
-@lilypond[quote,fragment,relative=1,verbatim]
-c8
-\set fontSize = #-4
-c f
-\set fontSize = #3
-g
-@end lilypond
-
-@noindent
-It does not change the size of variable symbols, such as beams or
-slurs.
-
-Internally, the @code{fontSize} context property will cause the
-@code{font-size} property to be set in all layout objects. The value
-of @code{font-size} is a number indicating the size relative to the
-standard size for the current staff height. Each step up is an
-increase of approximately 12% of the font size. Six steps is exactly a
-factor two. The Scheme function @code{magstep} converts a
-@code{font-size} number to a scaling factor.
-
-@lilypond[quote,fragment,relative=1,verbatim]
-c8
-\override NoteHead #'font-size = #-4
-c f
-\override NoteHead #'font-size = #3
-g
-@end lilypond
-
-LilyPond has fonts in different design sizes. The music fonts for
-smaller sizes are chubbier, while the text fonts are relatively wider.
-Font size changes are achieved by scaling the design size that is
-closest to the desired size. The standard font size (for
-@code{font-size} equals 0), depends on the standard staff height. For
-a 20pt staff, a 10pt font is selected.
-
-The @code{font-size} property can only be set on layout objects that
-use fonts. These are the ones supporting the
-@internalsref{font-interface} layout interface.
-
-@refcommands
-
-The following commands set @code{fontSize} for the current voice:
-
-@findex \tiny
-@code{\tiny},
-@findex \small
-@code{\small},
-@findex \normalsize
-@code{\normalsize}.
-
-
@node Score layout
@subsection Score layout
@node Vertical spacing
-@subsection Vertical spacing
+@section Vertical spacing
@cindex vertical spacing
+
+Vertical spacing is controlled by three things: the amount of
+space available (i.e. paper size and margins), the amount of
+space between systems, and the amount of space between
+staves inside a system.
+
+@menu
+* Vertical spacing inside a system::
+* Vertical spacing of piano staves::
+* Vertical spacing between systems::
+* Controlling spacing of individual systems::
+@end menu
+
+
+@node Vertical spacing inside a system
+@subsection Vertical spacing inside a system
+
@cindex distance between staves
@cindex staff distance
-@cindex between staves, distance
-@cindex staves per page
@cindex space between staves
+@cindex space inside systems
The height of each system is determined automatically. To prevent
-systems from bumping into each other, some minimum distances are set.
-By changing these, you can put staves closer together, and thus put
-more systems onto one page.
+staves from bumping into each other, some minimum distances are set.
+By changing these, you can put staves closer together. This
+reduces the amount of space each system requires, and may result
+in having more systems per page.
Normally staves are stacked vertically. To make staves maintain a
distance, their vertical size is padded. This is done with the
This sets the vertical size of the current staff to 3 staff spaces on
either side of the center staff line. The value @code{(-3 . 3)} is
interpreted as an interval, where the center line is the 0, so the
-first number is generally negative. The staff can be made larger at
-the bottom by setting it to @code{(-6 . 4)}.
-
-The spacing of staves in a system may also be tuned per system. This is
-done with the command
-
-@example
-\overrideProperty
-#"Score.NonMusicalPaperColumn"
-#'line-break-system-details
-#'((alignment-extra-space . 15))
-@end example
+first number is generally negative. The numbers need not match;
+for example, the staff can be made larger at the bottom by setting
+it to @code{(-6 . 4)}.
-@noindent
-at the line break before the system to be changed. The distance
-@code{15} is distributed over all staves that have a fixed distance
-alignment. For example,
-
-@lilypond[ragged-right, fragment, relative=2, staffsize=13]
-\new StaffGroup <<
- \new Staff {
- c1\break
-
- \overrideProperty
- #"Score.NonMusicalPaperColumn"
- #'line-break-system-details
- #'((fixed-alignment-extra-space . 15))
-
- c\break
- }
- \new Staff { c c }
->>
-@end lilypond
-
-The distance for @code{alignment-extra-space} may also be negative.
-
-
-To change the amount of space between systems, use
-@code{between-system-space}. A score with only one staff is still
-considered to have systems, so setting @code{between-system-space} will
-be much more useful than changing @code{minimum-Y-extent} of a Staff
-context.
-
-@example
-\paper @{
- between-system-space = 10\mm
-@}
-@end example
-
-If you simply want to tell LilyPond ``fit as much as possible onto
-these pages, then expand to fill any available space on the pages,''
-then use the following
-
-@example
-\paper @{
- between-system-padding = #1
- ragged-bottom=##f
- ragged-last-bottom=##f
-@}
-@end example
-
-
-@c let's wait for a some comments before writing more.
-
-The vertical spacing on a page can also be changed for each system
-individually.
-Some examples are found in the example file
-@inputfileref{input/regression/,page-spacing.ly}.
-
-When setting @code{annotate-spacing} in the @code{\paper} block LilyPond
-will graphically indicate the dimensions of properties that may be set
-for page spacing,
-
-@lilypond[verbatim]
-#(set-default-paper-size "a7" 'landscape)
-\paper { annotate-spacing = ##t }
-{ c4 }
-@end lilypond
-
-@noindent
-All units dimensions are measured in staff spaces. The pairs
-(@var{a},@var{b}) are intervals, where @var{a} is the lower edge and
-@var{b} the upper edge of the interval.
@seealso
Internals: Vertical alignment of staves is handled by the
@internalsref{VerticalAlignment} object. The context parameters
-specifying the vertical extent are described in connection with
+specifying the vertical extent are described in connection with
the @internalsref{Axis_group_engraver}.
Example files: @inputfileref{input/regression/,page-spacing.ly},
@inputfileref{input/regression/,alignment-vertical-spacing.ly}.
-
-
@node Vertical spacing of piano staves
@subsection Vertical spacing of piano staves
@end lilypond
+@seealso
+
+Example files: @inputfileref{input/regression/,alignment-vertical-spacing.ly}.
+
+
+@node Vertical spacing between systems
+@subsection Vertical spacing between systems
+
+Space between systems are controlled by four @code{\paper} variables,
+
+@example
+\paper @{
+ between-system-space = 1.5\cm
+ between-system-padding = #1
+ ragged-bottom=##f
+ ragged-last-bottom=##f
+@}
+@end example
+
+
+@node Controlling spacing of individual systems
+@subsection Controlling spacing of individual systems
+
It is also possible to change the distance between for each system
individually. This is done by including the command
The distance for @code{fixed-alignment-extra-space} may also be
negative.
-@seealso
-Example files: @inputfileref{input/regression/,alignment-vertical-spacing.ly}.
@node Horizontal spacing
-@subsection Horizontal Spacing
+@section Horizontal Spacing
+
+@menu
+* Horizontal Intro::
+* Line length::
+@end menu
+
+
+@node Horizontal Intro
+@subsection Horizontal Intro
The spacing engine translates differences in durations into stretchable
distances (``springs'') of differring lengths. Longer durations get
@end example
+@node Breaks
+@section Breaks
+
+@menu
+* Line breaking::
+* Page breaking::
+@end menu
+
@node Line breaking
@subsection Line breaking
(@code{=""}) as in the example above, but it must be present.
+@node Displaying spacing
+@section Displaying spacing
+
+@findex annotate-spacing
+@cindex Spacing, display of properties
+
+To graphically display the dimensions of vertical properties
+that may be altered for page formatting, use
+
+@lilypond[verbatim]
+\paper { annotate-spacing = ##t }
+{ c4 }
+@end lilypond
+
+@noindent
+@c FIXME: really bad vagueness due to bug in annotate-spacing. -gp
+Some unit dimensions are measured in staff spaces, while others
+are measured in millimeters.
+The pairs
+(@var{a},@var{b}) are intervals, where @var{a} is the lower edge and
+@var{b} the upper edge of the interval.
+
+
projects / lilypond.git / blobdiff