...

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

hi, Wolfgang Schuster and Sietse Brouwer Thank you for your patience! I got it ! BEST REGARDS PengCZ 2013/1/7 Wolfgang Schuster

Am 06.01.2013 um 15:10 schrieb Sietse Brouwer :

...

...

...

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

I wrote a short seven page example where you can see both margins don’t influence the layout because they’re just put on the sides like attachments.

\setuppapersize[A4][A3]

\setuplayout [location=middle, header=0pt, footer=0pt]

\setuppagenumbering[location=]

\definefont[BigFont][Mono*none sa 4]

\starttext

\showframe[page] \centerbox{\BigFont PAGE}\page

\setuplayout [backspace=2cm, cutspace=2cm, width=middle, topspace=2cm, bottomspace=2cm, height=middle]

\showframe[text] \centerbox{\BigFont TEXTBLOCK}\page

\setuplayout [header=2cm, headerdistance=1cm, footer=2cm, footerdistance=1cm]

\showframe[header,footer] \centerbox{\BigFont HEADER/FOOTER}\page

\setuplayout [leftmargin=2cm, leftmargindistance=1cm]

\showframe[leftmargin] \centerbox{\BigFont LEFTMARGIN}\page

\setuplayout [leftedge=2cm, leftedgedistance=1cm]

\showframe[leftedge] \centerbox{\BigFont LEFTEDGE}\page

\setuplayout [rightmargin=2cm, rightmargindistance=1cm]

\showframe[rightmargin] \centerbox{\BigFont RIGHTMARGIN}\page

\setuplayout [rightedge=2cm, rightedgedistance=1cm]

\showframe[rightedge] \centerbox{\BigFont RIGHTEDGE}\page

\stoptext

Wolfgang

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