[Rd] R_ColorTable
Nicholas Lewin-Koh
kohnicho@comp.nus.edu.sg
Wed, 4 Oct 2000 16:51:39 +0800 (GMT-8)
Hi,
Thanks. I am working in windows, and adding R_ColorTable to globalvar.h
and the list of export functions would not be portable, would it? Just
some background, I am building an interactive color picker for R, and i
need to be able to Display the colors in the current palette so that they
can be edited. I can do something like
current.palette<-palette()
.Call("colorpick",current.palette)
However, if there are named colors in the palette I have to do a lot of
dancing around to get it to a list of rgb values. I thought if there was
an easy way, I could avoid rewriting a lot of internal code.
Besides accessing the palette everything works dandy using graphapp.
Nicholas
CH3
|
N Nicholas Lewin-Koh
/ \ Dept of Statistics
N----C C==O Program in Ecology and Evolutionary Biology
|| || | Iowa State University
|| || | Ames, IA 50011
CH C N--CH3 http://www.public.iastate.edu/~nlewin
\ / \ / nlewin@iastate.edu
N C
| || Currently
CH3 O Graphics Lab
School of Computing
National University of Singapore
The Real Part of Coffee kohnicho@comp.nus.edu.sg
On Wed, 4 Oct 2000, Prof Brian Ripley wrote:
> On Wed, 4 Oct 2000, Prof Brian D Ripley wrote:
>
> > I should point out that Graphics.h (it is capitalized) is not a distributed
> > header and not supported for use in addons. We've had discussions about
> > changing some of that.
>
> Sorry, I garbled that. What I meant to say is that Graphics.h is not in
> R_ext and does not start with `R', only such headers are exported.
>
> We have talked about exporting some of the graphics functions. The
> problem is the device driver defns, which I at least do not think are
> stable enough to export. So the idea that we were exploring was to
> have *DevDesc as an opaque type in the exported header, and only allow
> internal code access to its internals. (If functions using *GPar
> need to be exported, then that would need to be made opaque too.)
>
> Separately, Duncan TL was interested in accessing the driver part for an
> addon driver, and I don't think we got too far in resolving that.
>
> --
> Brian D. Ripley, ripley@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 272860 (secr)
> Oxford OX1 3TG, UK Fax: +44 1865 272595
>
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._