[R] rgl crashes after one successful draw

[Prof Brian Ripley]

This is most relevant to R-sig-mac.  There are two different rgl devices 
on OS X, depending how you are running this.  One based on X11 and one 
on Apple's GL.  In particular, are you using command-line R or R.app?

I seem to be able to reproduce it using R.app, in which case it is most 
definitely for R-sig-mac, and a workaround is to use command-line R.

On 29/05/2013 15:11, Bryan Hanson wrote:
> This is really odd, and probably 100% local to me, but I'm at a loss as to a next step.
>
> After narrowing things down, here's how to reproduce:
>
> library("rgl")
> showSomething <- function() {
> 	open3d()
> 	points3d(rnorm(10),rnorm(10),rnorm(10))
> 	axes3d()
> 	title3d('main','sub','xlab','ylab','zlab')
> 	}
> showSomething() # works as expected.
> # Close the current rgl window
> showSomething() # crashes R with the following report:
>
>   *** caught segfault ***
> address 0x0, cause 'unknown'
>
> Traceback:
>   1: .C(rgl_dev_open, success = FALSE)
>   2: rgl.open()
>   3: open3d()
>   4: showSomething()
>
> This will probably work fine for any of you, it's so simple and fundamental.  If I don't close the open rgl windows, it doesn't crash, and I can execute the function over and over successfully.  And the same thing happens if I just do the commands inside the function individually.  SessionInfo() below.
>
> Perhaps something is corrupt with my X11 window system?  Thanks, Bryan
>
> R version 3.0.1 (2013-05-16)
> 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_0.93.940 sos_1.3-5    brew_1.0-6
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> 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