[R-gui] Re: [R] Feedback about SciViews?

[Duncan Temple Lang]

Philippe Grosjean wrote:
> 
> >>>>> "PhGr" == Philippe Grosjean <phgrosjean at sciviews.org>
> >>>>>     on Tue, 29 Apr 2003 09:56:22 +0200 writes:
> 

> RGtk and co currently suffers from two big problem: (1) it is not the
> fastest, and (2) it is not yet Windows-compatible (according to some
> discussions in r-sig-gui, Windows users are currently the priority target
> for a R GUI).

Hi Philippe.

 Can you tell us how you came to these conclusions? I haven't done any
performance measurements on RGtk or tcltk, but I would be startled if
there was any discernible difference in their response times for
callbacks. If there is some other way in which it is slow I'd be very
happy to look into it. We haven't experienced any problems with it in
using it in Berkeley for teaching (www.statdocs.org).  And we can use
S functions as callbacks in GGobi for identifying points, brushing
regions, etc.

One issue might be the integration of the event loop and that is
something quite different from RGtk itself.  If the speed is being
measured from John Verzani's pmg, you may want to identify whether
this lack of speed is in the loading of the package, the running of
the GUI, or the method dispatch in the OOP mechanism.

The core gtk library and hence RGtk is windows-compatible and indeed
there is a binary on the Omegahat web site for RGtk.  What are not
necessarily windows compatible are the additional libraries such as
gtkhtml, etc. that use Gnome.  Since some of these widgets are not
available for Tk, the platform-dependency is a different issue.

 So if you have any examples where RGtk is slow, I'd be
grateful if you could point me at them so I can find out if
it can be fixed.

 Thanks,
   D.
 


> Yet, I look with much interest towards projects like Poor
> Man's GUI of John Verzani, and I encourage it. Also, Gtk is much more OO
> than Tcl/Tk, and this is a strong advantage for large projects.
> 
> ObveRsive is platform independent, and it explores various technical
> solutions to be it. SciViews is not, but it is dedicated to explores various
> GUI concepts. Do you see now the complementarity and interest of SciViews in
> this context?
> 
> Thank you for your feedback.
> Best,
> 
> Philippe
> 
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> ( ( ( ( (
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_______________________________________________________________

Duncan Temple Lang                duncan at research.bell-labs.com
Bell Labs, Lucent Technologies    office: (908)582-3217
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