[R] x11() graphic device, displaying raster

[Johannes Radinger]

> 
> On 25.01.2012 13:42, Johannes Radinger wrote:
> >
> >>
> >> On 25.01.2012 12:45, Johannes Radinger wrote:
> >>> Hello,
> >>>
> >>> I am wondering about the X11() graphic device on Windows.
> >>> I try to plot a raster image but nothing gets displayed. I
> >>> found some pages where it is mentioned that x11() not
> >>> always supports raster rendering.
> >>> Is there any add on for x11, any update or any R-package
> >>> which solves that displaying problem in Windows?
> >>>
> >>> What I try to test it is an example from the
> >>> package {raster}:
> >>>
> >>> library(raster)
> >>> DEU_alt<- getData("alt", country="DEU", mask=TRUE)
> >>> x11()
> >>> plot(DEU_alt,axes=TRUE)
> >>>
> >>> best regards,
> >>>
> >>> /johannes
> >>
> >> Try an R version that is recent - it works for me.
> >>
> >> Uwe Ligges
> >
> > I first tried it with R 2.13.2 and raster version 1.9-64
> (16-January-2012).
> > Now I also installed the most recent version R 2.14.1 (Platform:
> i386-pc-mingw32/i386 (32-bit)) and raster version 1.9-64 (16-January-2012).
> >
> > But in both cases no success. X11() opens and draws the axis and the
> > border for the scale but no raster...
> 
> I do not really understand why you are using x11(). The Windows device 
> is called windows() and you actually do not need to open it, since plot 
> opens it anyway. Or are you under cygwin (which is not really Windows)?
> If not: Which version of Windows is this?

Of course I do not need to open a graphic device (as you said it is open when calling plot). I just wanted to make it reproducable as e.g. Mac OS X opens Quartz as a standard device when calling plot on my Mac machine.

So far as I understand the help are "all the devices (X11(), x11() and windows() implemented as variants of the same device". Thus it makes no difference if I call x11() or windows() or if 'plot' opens the device automatically. In all cases there is no raster displayed.

Just some additional information from the 'grDevices' package:
> library(grDevices)
> dev.capabilities()
$semiTransparency
[1] TRUE

$transparentBackground
[1] "fully"

$rasterImage
[1] "yes"

$capture
[1] TRUE

$locator
[1] TRUE

$events
[1] "MouseDown" "MouseMove" "MouseUp"   "Keybd"  

I am running R via the standard RGUI (so no Eclipse, Rtinn etc.). The machine I am working on is Windows 2008 Server Enterprise (Version 6.0) which I am remotely accessing from a ThinClient with WindowsXP-embedded.
This is the standard configuration of our institution. Maybe that configuration with ThinClients is a reason? But what should I ask our admin? What should he check etc?

best regards,
johannes



> 
> Uwe Ligges
> 
> 
> > There is no problem with vector graphics...like:
> > DEU_border<- getData("GADM", country="DEU", level=1)
> > plot(DEU_border,axes=TRUE)
> >
> > Any suggestions what is going on resp. how to solve it...?
> >
> > /johannes
> >
> >

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