RE: [R] DEV2bitmap: jpeg with res=400 not enough for CORELDRAW poster A0

From: Jan Verbesselt <Jan.Verbesselt_at_biw.kuleuven.be>
Date: Wed 18 May 2005 - 20:50:53 EST


Thanks for the input!

Finally I used:

dev2bitmap(name,type="pdfwrite",height=8,width=14,res=1200)

==> resolution and colors were fine on the A0 poster! (and files are really small).

Regards,
Jan



ir. Jan Verbesselt
Research Associate
Lab of Geomatics Engineering K.U. Leuven Vital Decosterstraat 102. B-3000 Leuven Belgium Tel: +32-16-329750 Fax: +32-16-329760
http://gloveg.kuleuven.ac.be/

-----Original Message-----
From: Peter Dalgaard [mailto:p.dalgaard@biostat.ku.dk] Sent: Friday, May 13, 2005 12:38 PM
To: Uwe Ligges
Cc: Jan.Verbesselt@biw.kuleuven.be; r-help@stat.math.ethz.ch Subject: Re: [R] DEV2bitmap: jpeg with res=400 not enough for CORELDRAW poster A0

Uwe Ligges <ligges@statistik.uni-dortmund.de> writes:

> Jan Verbesselt wrote:
>
> > Dear all,
> > When saving a plot with the dev2bitmap command:
> > name <- c("test.jpeg")
> > dev2bitmap(name,type="jpeg",height=8,width=13,res=400)
> > Everything seems to be ok... After importing this picture in
> > CORELDRAW (for
> > a poster A0) format the resolution and colors are not optimal.
> > How can I save pictures (colors/resolution) optimally for import into
> > CorelDraw for an A0 poster?
> > Pdf?/tiff?/bmp?/
>
> What about PostScript? It's perfectly resizable and CorelDraw (at
> least the outdated version 10) can deal with it.

But not PDF? Notice that this is not really bitmapped either, even though handled by dev2bitmap.

Upping the res= is another option, but may be memory intensive. Notice that A0 is 4 times as big as A4 (~8x12 inches) so you'd need up to 4 times the resolution - but I guess that your plot is not taking up the whole area...

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard@biostat.ku.dk)             FAX: (+45) 35327907

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Received on Wed May 18 20:55:39 2005

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