[R-SIG-Mac] R stops abruptly applying textures in rgl

[Duncan Murdoch]

On 20/03/2014 9:26 AM, Rainer M Krug wrote:
> "Agustin Diez Castillo"<Agustin.Diez at uv.es> writes:
>
> > Duncan,
> > Find the script [1] , SessionInfo [2]  and the Mac error [3]  in case it helps. Executing R from the terminal R doesn't
> > freeze and I got the same message that in Ubuntu 13.04 [4]
> > # With rgl installed in ~/Library/R/
> > library(rgl)
> > # Set directory
> > setwd("~/")
> > #Working
> > rgl.bg(sphere=TRUE, texture=system.file("textures/bump_dust.png", package="rgl"),back="filled")
> > #Copying the same texture to the working directory
> > system("cp ~/Library/R/3.0/library/rgl/textures/bump_dust.png bump_dust.png")
> > # expanded version also works
> > expanded<-paste(getwd(),"/bump_dust.png",sep="")
> > # Testing
> > rgl.bg(sphere=TRUE, texture=expanded,back="filled")
> > #Hanging R.app
> > rgl.bg(sphere=TRUE, texture="~/bump_dust.png",back="filled")
>
> Confirmed as described - works in terminal, crashes R gui
> Additionally: works in RStudio with the following error:
>
> ,----
> | > rgl.bg(sphere=TRUE, texture="~/bump_dust.png",back="filled")
> | Warning message:
> | In rgl.material(color = color, back = back, ...) :
> |   RGL: Pixmap load: unable to open file '~/bump_dust.png' for reading

Thanks.  I imagine what is happening is that rgl tries to generate an 
error when it fails to open the non-existent file, but something goes 
wrong, and it doesn't end up being handled properly by R.app. (I would 
guess a workaround is to call normalizePath() to expand the tilde; rgl 
should probably be doing that, but currently doesn't.)

I'll see if the extra info lets me reproduce it.

Duncan Murdoch
> `----
>
> ,----
> | > version
> |                _
> | platform       x86_64-apple-darwin10.8.0
> | arch           x86_64
> | os             darwin10.8.0
> | system         x86_64, darwin10.8.0
> | status         Patched
> | major          3
> | minor          0.3
> | year           2014
> | month          03
> | day            06
> | svn rev        65134
> | language       R
> | version.string R version 3.0.3 Patched (2014-03-06 r65134)
> | nickname       Warm Puppy
> | > library(rgl)
> | > sessionInfo()
> | R version 3.0.3 Patched (2014-03-06 r65134)
> | Platform: x86_64-apple-darwin10.8.0 (64-bit)
> |
> | locale:
> | [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
> |
> | attached base packages:
> | [1] stats     graphics  grDevices utils     datasets  methods   base
> |
> | other attached packages:
> | [1] rgl_0.93.996
> | >
> `----
>
> Cheers,
>
> Rainer
>
>
> > -------
> > [2] R version 3.0.3 (2014-03-06)
> > Platform: x86_64-apple-darwin10.8.0 (64-bit)
> >
> > locale:
> > [1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
> >
> > attached base packages:
> > [1] stats     graphics  grDevices utils     datasets  methods   base
> >
> > other attached packages:
> > [1] rgl_0.93.996
> > ----------
> > [3] http://pastebin.com/tQ8FRFzc
> >
> > [4] Warning message:
> > In rgl.material(color = color, back = back, ...) :
> >   RGL: Pixmap load: unable to open file '~/bump_dust.png' for reading
> > Agustín
> >
> >
> >> On 14-03-19 10:22 AM, Agustin Angel Diez Castillo wrote:
> >> > Hi,
> >> > When applying textures to an rgl object I can do it without problem if the applied texture if the texture file is
> > called in an expand form [1]. However if the same file is called with tilde [2], R will stop abruptly. I've tested it in
> > three different machines, all running 9.2. The same in Unbuntu 13.04
> > drops a warning message [3] but R continues running.
> >> > Agustin
> >> > [1] /Users/myuser/myfile.png
> >> > [2] ~/myfile.png
> >> > [3] In rgl.material(...) :
> >> >    RGL: Pixmap load: unable to open file '~/gvSIG-desktop/gvSIG-desktop-2066/theme/splash.png' for reading
> >> >
> >>
> >> I am unable to reproduce this.  Could you please post a complete script
> >> that reproducibly causes the crash for you, and post information about
> >> rgl, R, and MacOS versions?
> >>
> >> Duncan Murdoch
> >>
> >>
> >>
> >
> >
> > --
> > ******************************************************
> > Dr. Agustín Diez Castillo
> > Departament de Prehistòria i Arqueologia
> > Phone:   +34 963 86 42 42
> > Avda. Blasco Ibañez, 28   Fax:      +34 963 86 42 34
> > València 46010
> >
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>