Hagen - Pragma ADE

We thrive in information--thick worlds because of our marvelous and everyday
capacity to select, edit, single out, structure, highlight, group, pair, merge,
harmonize, synthesize, focus, organize, condense, reduce, boil down, choose,
categorize, catalog, classify, list, abstract, scan, look into, idealize, isolate, discriminate,
distinguish, screen, pigeonhole, pick over, sort, integrate, blend, inspect,
filter, lump, skip, smooth, chunk, average, approximate, cluster, aggregate,
outline, summarize, itemize, review, dip into, flip through, browse, glance
into, leaf through, skim, refine, enumerate, glean, synopsize, winnow the wheat
from the chaff and separate the sheep from the goats.
Figure 8.7 The difference between no protrusion and quality protrusion.
[default]
[protrusion=myown]
\definefont[MyTestA][Serif*default at 10pt]
\definefont[MyTestB][Serif*whatever at 10pt]
In figure 8.8 we see that the somewhat extreem definition of the comma also pulls
the preceding character into the margin.
We thrive in information--thick worlds because of our marvelous and everyday
capacity to select, edit, single out, structure, highlight, group, pair, merge,
harmonize, synthesize, focus, organize, condense, reduce, boil down, choose,
categorize, catalog, classify, list, abstract, scan, look into, idealize, isolate, discriminate,
distinguish, screen, pigeonhole, pick over, sort, integrate, blend, inspect,
filter, lump, skip, smooth, chunk, average, approximate, cluster, aggregate,
outline, summarize, itemize, review, dip into, flip through, browse, glance
into, leaf through, skim, refine, enumerate, glean, synopsize, winnow the wheat
from the chaff and separate the sheep from the goats.
Figure 8.8 The influence of extreme protrusion on preceding characters.
8.9 Expansion
Expansion is also an inheritance of pdfT E X. 12 This mechanism selectively expands characters,
normally upto 5%. One reason for applying it is that we have less visually incompatible
spacing, especially when we have underfull or cramped lines. For each (broken)
line the badness is reconsidered with either shrink or stretch applied to all characters
in that line. So, in the worst case a shrunken line is followed by a stretched one and that
can be visible when the scaling factors are chosen wrong.
As with protrusion, the solution space is larger but so are the constraints. But contrary
to protrusion here the look and feel of the whole line can be made better but at
the cost of much more runtime and larger (pdf) files.
12 As with protrusion the implementation in the engine is somewhat suboptimal and inefficient and will be upgraded
to a more LuaT E X-ish way.
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Extensions