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diff --git a/obsolete/macros/inrstex/inrsdoc/thover.tex b/obsolete/macros/inrstex/inrsdoc/thover.tex new file mode 100644 index 0000000000..70362ec6d3 --- /dev/null +++ b/obsolete/macros/inrstex/inrsdoc/thover.tex @@ -0,0 +1,66 @@ +%-*-tex-*- +\ifundefined{writestatus} \input status \relax \fi % +\chcode{over} +\def\cqu{\cquote{There is no one on earth who does what is right +all the time and never makes a mistake.}{Ecclesiastes Chap. 7, Verse 20}} + +\chapterhead{over}{OVERFULL BOXES\cr and\cr OTHER DISASTERS} +Sometimes \tex\ and \intex\ have trouble making a {\it best} decision that is +good enough. The result of this is a message that there is an {\it overfull} +or {\it underfull} box. Chapter \ref{parcont} suggests increasing the +value of |\tolerance| and |\pretolerance| so that \tex\ will accept worse +looking lines. This is fine except that the result is less than beautiful. + +\tex\ indicates an overfull box by putting a big ugly black line at the end. +This book has a few overfull boxes to demonstrate how they look. This chapter +suggests ways of both avoiding and hiding overfull boxes. + +\shead{overcomform}{Command Forms} +\bshortcomlist +\pri\@|\hfuzz [=] <dimen>|&\tex\ tells of overfull horizontal boxes only if +they are overfull by more than |<dimen>|. {\it Plain} default is 0.1pt. \cr +\pri\@|\overfullrule [=] <dimen>|&\tex\ places a rule or line of width +|<dimen>| at the end of an overfull box and of the same height as the box.\cr +\pri\@|\vfuzz [=] <dimen>|&\tex\ tells of overfull vertical boxes only if +they are overfull by more than |<dimen>|. {\it Plain} default is 0.1pt. \cr +\eshortcomlist + +\shead{action}{Overfull Boxes --- Action} +The recommended way to handle an overfull box is to rewrite the passage that +is causing the offence. This will generally work quite well if the box is an +isolated event. It has the feature of not destroying the beauty of the +document. + +However, if you want to hear about overfull boxes but don't want the black +marks let |\overfullrule = 0pt|. If you don't want to hear about them, +increase the size of |\hfuzz| and |\vfuzz|. +|\finalversion| increases |\hfuzz| and obliterates the black marks. + +Overfull |vboxes| are quite rare, as are underfull |hboxes|. If there is an +underfull |hbox|, check it very carefully. The most likely error is not +putting in glue to fill in the box. An example would be using |\line| +instead of |\centerline|. + +Underfull |vboxes| are not as rare. They result when the |vboxes| +on the page are quite large and the glue between them is not very stretchy. +Pages with figures, tables or multicolumn format are the most likely +candidates. The only solution may be a rearrangement of material in the +document, forced filling of the bottom of the page. \tex\ provides a +\@|\raggedbottom| command that puts glue at the bottom of a short page to +prevent it from being stretched out. Whether this is an adequate solution to +the problem is a matter of aesthetic debate. +In general, information about over and under full boxes is desirable. + +\begingroup \bf +When \tex\ indicates that there is an underfull box, it stretches, unless +|\raggedbottom| is active, all stretchable glue. This may result in pages +that look strange. Only glue between paragraphs, before and after display +mathematics, between all list items, and before section \dots\ heads is +stretchable. Interline glue is not stretchable either in {\it Plain\/} or +\intex. In extreme cases (badness greater 10000) the page will have very +disturbing spacing indeed. +\par\endgroup + + +\ejectpage +\done
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