Ross Henderson <[EMAIL PROTECTED]> writes:
> hello,
>
> I'm trying to use R to take an image matrix and paint it into a
> tcltk canvas. I'm using R-1.9.0 within ess-5.2.0 on a linux
> machine running the 2.4.30-31.9smp kernel. I'm using the
> ActiveTcl8.4.6.1-linux-ix86 tcltk libraries.
>
> When I run the following comands, however, I get an R segmentation
> fault:
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> > library(tcltk)
> > addTclPath("/usr/local/ActiveTcl/lib")
> > tclRequire("Img")
> <Tcl> 1.3
> >tkcmd("image","create","photo",tclVar(),file="/path/to/file.jpg")
>
> Process R segmentation fault at Tue Jul 27 18:18:40 2004
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> I've run this as root, and I get the same segmentation fault, So I don't
> think this is a permissions problem. Should I somehow be initializing
> tclVar()? Can anyone point me to the right way to run this piece of
> code so that I don't get the segmentation fault?
You should assign tclVar() to something, or you will find it difficult
to access its value later on. Wouldn't expect that that could provoke a
segfault though. Could you get us a traceback from the debugger (gdb)?
Also, will similar code run from wish? (need to rule out that it could
be a problem entirely within Tcl).
--
O__ ---- Peter Dalgaard Blegdamsvej 3
c/ /'_ --- Dept. of Biostatistics 2200 Cph. N
(*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918
~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907
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