[OS X TeX] magnification in the geometry package

[André Bellaïche]

Le 28 mai 07 à 13:44, Peter Dyballa a écrit :

>
> Am 28.05.2007 um 02:59 schrieb André Bellaïche:
>
>> \usepackage 
>> [mag=800,paperwidth=15truecm,paperheight=22.5truecm,textwidth=11truec 
>> m,textheight=17truecm,inner=17truemm]{geometry}
>
> I actually do not understand why you have to use mag when you also  
> give exact dimensions! Isn't mag an auxiliary means to make an ISO  
> A4 page fit on some non-standard paper?

Not only that. I also want to reduce the font. I started from course  
notes typeset on A4 paper, but in 12 pt size. With a 800  
magnification, we get a text in 9.6 pt, and with a 850 magnification  
we get a text in 10.2 pt.

So I do want not start from A4 to get an A4 paper reduced by 0.8, as  
the dimensions of the paper are fixed independently of A4 (the  
horizontal/vertical ratio is 2:3, as it is 1/1.414... for A4). In  
fact no memory of A4 should remain in the LaTeX commands or in the  
final output

> At least I get in the LOG file:
>
> 	Package geometry Warning: The marginal notes would fall off the page.
> 	     Add 23.19832pt and more to the right margin.
>
> Leaving mag away I still get:
>
> 	Package geometry Warning: The marginal notes would fall off the page.
> 	     Add 39.55864pt and more to the right margin.
>
> So it's obvious that you make mistakes in specifying the dimensions.

There are no marginal notes in this text. If there were some, I would  
reduce the width of marginal notes (or the text width).
>
>>
>> \usepackage 
>> [mag=800,paperwidth=18.75cm,paperheight=28.125cm,textwidth=13.75cm,te 
>> xtheight=21.25cm,inner=21.25mm]{geometry}
>>
>> or
>>
>> \usepackage 
>> [paperwidth=18.75cm,paperheight=28.125cm,textwidth=13.75cm,textheight 
>> =21.25cm,inner=21.25mm,mag=800]{geometry}
>
> Both give similar warning messages. It is quite helpful to add  
> these two options when using geometry:
>
> 	showframe,verbose

Thank you, I'll use that.

Of course I can correct everything, up to the screen precision, by using

\advance\oddsidemargin by
\advance\evensidemargin by
\advance\voffset by

but the behaviour of geometry remains a puzzle for me.

André

>
> Particularly showframe will show that the frame for mag=800 is  
> outside the paper format chosen. The verbose option will show that  
> paper width and height are exactly 80 % of the given values (and  
> that the sum of text width and inner is bigger than the resulting  
> paper width) while in your first example  the text body was  
> enlarged to exactly 125 % ...


>
> --
> Greetings
>
>   Pete
>
> From error to error, one discovers the entire truth.
>                                                      - Sigmund Freud
>
>
>
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