[R] Jpeg and pixel

thomas.schwander at mvv.de thomas.schwander at mvv.de
Tue Mar 11 10:14:40 CET 2008


Thanks again,

but I see the pixels on my print... The width is set to 1560, the height to 566.

Is the assignment to use Frutiger correct?

Regards

-----Ursprüngliche Nachricht-----
Von: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk] 
Gesendet: Dienstag, 11. März 2008 10:08
An: Schwander, Thomas, KS.R
Cc: r-help at r-project.org
Betreff: Re: AW: [R] Jpeg and pixel

On Tue, 11 Mar 2008, thomas.schwander at mvv.de wrote:

> Hi Brian,
>
> Thank you for your fast answer. It looks a little bit better now. 
> Nevertheless I see pixels. May it depend on the font used?

These _are_ bitmap formats: of course you will see pixels if you look closely enough!

But beware that many of the artefacts people see are from their viewer and not from the file R produces.

> In the praeambel I use
> 	windowsFonts(Frutiger = windowsFont("Frutiger 45 Light"))
> 	par(family="Frutiger")
>
> And later, to create a wide table on the right of the plot
> 	text(par("usr")[2] + 3.95, ... ,family="Frutiger")
>
> Regards,
> Thomas
>
> -----Ursprüngliche Nachricht-----
> Von: Prof Brian Ripley [mailto:ripley at stats.ox.ac.uk]
> Gesendet: Dienstag, 11. März 2008 09:28
> An: Schwander, Thomas, KS.R
> Cc: r-help at r-project.org
> Betreff: Re: [R] Jpeg and pixel
>
> On Tue, 11 Mar 2008, thomas.schwander at mvv.de wrote:
>
>> Hi guys,
>>
>> I've got tthe following question:
>>
>> Why do my fonts look a bit grubby when I use the jpeg() function? I 
>> see the pixels of the font. The quality is set to 100%.
>> If this is normal with jpeg(), which function would you propose me to 
>> use instead?
>
> png(), as the help page suggested.  The 'P' in JPEG stands for 
> 'Photographic', and the format is not intended for text and line 
> diagrams.
>
>>
>> Kind regards,
>> Thomas
>> ________________________________
>> I'm using R 2.6.2 on Windows XP, SP2
>>
>>
>>
>> 	[[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> --
> Brian D. Ripley,                  ripley at stats.ox.ac.uk
> Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
> University of Oxford,             Tel:  +44 1865 272861 (self)
> 1 South Parks Road,                     +44 1865 272866 (PA)
> Oxford OX1 3TG, UK                Fax:  +44 1865 272595
>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595



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