rgl window problem

we usually use .Platform$GUI to check if we are under R.app or under  
the console
Un R.app .Platform$GUI="AQUA", under terminal it is set to "X11" (if  
R is built with X11 support, which is the case of CRAN binary)

stefano
p.s. and this is Cocoa not Carbon. The OS X GUI itself is called AQUA  
though. Both Cocoa and Carbon are layers between the system and the  
AQUA GUI. So, definitely AQUA but not Carbon.

On 06/dic/06, at 23:08, Duncan Murdoch wrote:

On 12/6/2006 8:43 AM, roger koenker wrote:

I've recently installed rgl on a:

R version 2.5.0 Under development (unstable) (2006-09-10 r39242)
powerpc-apple-darwin8.7.0

system, from source and everything seemed to be ok, the package
loads without complaints, however  trying to run any of the examples
produces the usual window, but no plotting occurs.  The window
is blank, and moving the cursor over the window gives the dreaded
spinning pinwheel of cluelessness.

Can anyone suggest a strategy for further diagnosis?

This sounds as though you are running from the console rather than
R.app, but have built rgl (or downloaded a copy built) to use AGL in
Carbon rather than X11.  That doesn't work.  AGL calls only work  
from R.app.

If someone knows a nice run-time test for whether Carbon will work I'd
put it in to at least give a meaningful error message.  I'd really
prefer it to fall back to trying X11 in that case, but that looks much
harder:  for an OSX newbie like me, I think the AGL/X11 decision needs
to be done at link time, not run time.  (On Windows I'd load the
appropriate OpenGL .dll when the package loaded, and do all the calls
indirectly.  But I don't know how to do this on OSX.)

If my assumption in the first paragraph is wrong, please let me know.
And if "Carbon" is the wrong name for the graphics system that  
supports
the standard Mac GUI and AGL, I wouldn't mind hearing that either.

Duncan Murdoch