Re: how to widen the textwidth

[Sietse Brouwer <sbbrouwer@gmail.com>]

>> but the rightmarginwidth = 3.7569cm, not 0.1cm, I do not know why?
>> what should I do to widen the texwidth?
>
> http://www.ntg.nl/pipermail/ntg-context/2012/064650.html

In which Wolfgang wrote:
> The horizontal dimensions are determined by the three values
>
> - backspace (distance from the left/inner margin)
> - cutspace (distance from the right/outer margin)
> - width (width of the textblock)
>
> Normally you need only two values because when you set
> backspace + width the cutspace is > calculated and when
> you set backspace + cutspace you can write width=middle
> and the width of the text block will be calculated.

Which is a good explanation, and he explains how vertical dimensions
work, too. Allow me to add this e-mail to answer another question you
will probably have: "What about the marginwidth, margindistance,
edgewidth, and edgedistance? Those are also horizontal values!"

A good question. The answer is that ‘margin’ means two things:
1. the space between the edge of the textblock and the boundary of the paper
2. a typesetting area inside that space, in which marginal material is typeset.

Inside \setuplayout, margin has the second meaning: marginwidth is the
width of the margin, and margindistance the distance between the text
area and the margin area.

There are also the ‘edges’: these are typesetting areas outside the
margin areas. Some uses I can think of: colouring the edge of the page
in a guidebook with sections; placing informative marks in general;
printing a sort of vertical header/footer; etc.

This is not a bad reference:
http://wiki.contextgarden.net/Layout

Cheers,

Sietse
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