diff options
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/dw-line-breaking.doc | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/doc/dw-line-breaking.doc b/doc/dw-line-breaking.doc index e9e3b4ea..d1157cd7 100644 --- a/doc/dw-line-breaking.doc +++ b/doc/dw-line-breaking.doc @@ -240,7 +240,7 @@ depends on the number of words: consider the typical case that all spaces and stretchabilities are equal (\f$y_a = y_{a + 1} = \ldots = y_b\f$). With \f$n\f$ words, the total strechability would be \f$n \cdot y_a\f$, so increase with an increasing number of words -(\f$y_a\fb$ is constant). This is correct for justified text, but for +(\f$y_a\f$ is constant). This is correct for justified text, but for other alignments, where only one space (or two, for centered text) is changed, this would mean that a line with many narrow words is more stretchable than a line with few wide words. @@ -248,7 +248,18 @@ stretchable than a line with few wide words. It is obvious that left-aligned text can be handled in the same way as right-aligned text. [... Centered text? ...] -[... Exact value of stretchability; relation to penalties ...] +The default value for the stretchability is the line height without +the space between the lines (more precisely: the maximum of all word +heights). The exact value not so important when comparing different +possible values for the badness \f$\beta_a^b\f$, when \f${Y_0}_a^b\f$ +is nearly constant for different \f$b\f$ (which is the case for the +actual value), but it is important for the comparison with penalties, +which are constant. To be considered is also that for non-justified +text, hyphenation is differently (less) desirable; this effect can be +achieved by enlarging the stretchability, which will lead to a smaller +badness, and so make hyphenation less likely. The user can configure +the stretchability by changing the preference value +*stretchability_factor*. Hyphens |