Thanks Baptiste!
the problem with lattice (or more likely with my ignorance) is that it
does not accept NA values.
Ciao!
mario
On 26-Oct-10 07:38, baptiste auguie wrote:
Hi,
As an alternative, maybe you could use lattice::panel.levelplot.raster
which I think doesn't have this problem in pdf viewers.
HTH,
baptiste
On 26 October 2010 02:30, David Winsemius<dwinsem...@comcast.net> wrote:
On Oct 25, 2010, at 6:50 AM, Mario Valle wrote:
Dear all,
I'm using R 2.12.0 on Windows 7 (32bits)
I created a filled contour from the attached data using the following
code:
load('bug.RData')
pdf('bug.pdf', width=14, height=7)
filled.contour(o4$x, o4$y, o4$z, color=rainbow, xlim=c(4,18),
ylim=c(0,35), zlim=c(14,36))
dev.off()
If you look (I used acrobat reader 9.4) at the attached bug.pdf, you see
an incomplete grid of gray lines.
From the pdf help page:
"Note
If you see problems with PDF output, do remember that the problem is much
more likely to be in your viewer than in R. Try another viewer if possible.
Symptoms for which the viewer has been at fault are apparent grids on image
plots (turn off graphics anti-aliasing in your viewer if you) and missing or
incorrect glyphs in text (viewers silently doing font substitution).
Unfortunately the default viewers on most Linux and Mac OS X systems have
these problems, and no obvious way to turn off graphics anti-aliasing. "
Are they there when printed?
On a Mac I can make the lines in that pdf graphic "appear and disappear" in
different places on my screen by changing the "Page Display" settings for
Resolution in Acrobat Reader, and viewing in other applications like
GraphicConverter I see even more lines tha I do in Acrobat Reader.
--
David.
This artifact is not present if the output is PNG (attached, obtained in
the above code using png('bug.png', width=800, height=400) instead of
pdf()).
Seems like a off-by-one bug. Is it a known bug? Is there any workaround? I
tried lattice::contourplot but it does not support NA.
Thanks for your help!
mario
--
Ing. Mario Valle
Data Analysis and Visualization Group |
http://www.cscs.ch/~mvalle
Swiss National Supercomputing Centre (CSCS) | Tel: +41 (91)
610.82.60
v. Cantonale Galleria 2, 6928 Manno, Switzerland | Fax: +41 (91)
610.82.82
<bug.pdf><bug.png>______________________________________________
R-help@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.
______________________________________________
R-help@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.
--
Ing. Mario Valle
Data Analysis and Visualization Group | http://www.cscs.ch/~mvalle
Swiss National Supercomputing Centre (CSCS) | Tel: +41 (91) 610.82.60
v. Cantonale Galleria 2, 6928 Manno, Switzerland | Fax: +41 (91) 610.82.82
______________________________________________
R-help@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.
